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166 lines
90 KiB
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166 lines
90 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<class-scheme publication-date="2023-02-01" scheme-type="cpc" publication-type="official">
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" sort-key="H03J" definition-exists="true" date-revised="2023-01-01" status="published"><classification-symbol>H03J</classification-symbol><class-title date-revised="2023-01-01"><title-part><text>TUNING RESONANT CIRCUITS</text></title-part><title-part><text>SELECTING RESONANT CIRCUITS</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>This subclass <u>covers</u> also the control of tuning, including the combined control of tuning and other functions, e.g. combinations of tuning control and volume control, combinations of control of local oscillator and of supplementary resonant circuits.</note-paragraph></note><note type="warning"><note-paragraph><CPC-specific-note>In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.</CPC-specific-note></note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="H03J1/00" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/00</classification-symbol>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="H03J1/00" definition-exists="true" ipc-concordant="H03J1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2023-01-01" status="published"><classification-symbol>H03J1/00</classification-symbol><class-title date-revised="2023-01-01"><title-part><text>Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general</text></title-part></class-title><notes-and-warnings><note type="note"><note-paragraph>Groups <class-ref scheme="cpc">H03J1/14</class-ref>, <class-ref scheme="cpc">H03J1/16</class-ref> take precedence over groups <class-ref scheme="cpc">H03J1/08</class-ref> - <class-ref scheme="cpc">H03J1/12</class-ref>.<br/><CPC-specific-note>This Note corresponds to IPC Note (1) relating to <class-ref scheme="cpc">H03J1/08</class-ref> - <class-ref scheme="cpc">H03J1/12</class-ref>.</CPC-specific-note></note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="H03J1/0008" definition-exists="false" ipc-concordant="H03J1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/0008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a central processing unit, e.g. a microprocessor </text><reference><text>digital tuning in general <class-ref scheme="cpc">H03J5/0245</class-ref></text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J1/0016" definition-exists="false" ipc-concordant="H03J1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/0016</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Indicating arrangements </text><reference><text>digital indication of tuning in general <class-ref scheme="cpc">H03J1/048</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J1/0025" definition-exists="false" ipc-concordant="H03J1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/0025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in a remote control unit </text><reference><text>remote control tuning in general <class-ref scheme="cpc">H03J9/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J1/0033" definition-exists="false" ipc-concordant="H03J1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/0033</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for voltage synthesis with a D/A converter</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J1/0041" definition-exists="false" ipc-concordant="H03J1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/0041</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for frequency synthesis with counters or frequency dividers</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J1/005" definition-exists="false" ipc-concordant="H03J1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in a loop</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J1/0058" definition-exists="false" ipc-concordant="H03J1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/0058</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>provided with channel identification means </text><reference><text>arrangements for monitoring the use made of broadcast services <class-ref scheme="cpc">H04H60/31</class-ref></text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J1/0066" definition-exists="false" ipc-concordant="H03J1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/0066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with means for analysing the received signal strength </text><reference><text><class-ref scheme="cpc">H03J1/0083</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="H03J1/0075" definition-exists="false" ipc-concordant="H03J1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/0075</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>where the receiving frequencies of the stations are stored in a permanent memory, e.g. ROM</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J1/0083" definition-exists="false" ipc-concordant="H03J1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/0083</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using two or more tuners</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J1/0091" definition-exists="false" ipc-concordant="H03J1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/0091</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>provided with means for scanning over a band of frequencies </text><reference><text><class-ref scheme="cpc">H03J1/0058</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="H03J1/02" definition-exists="false" ipc-concordant="H03J1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Indicating arrangements </text><CPC-specific-text><reference><text>indicating correct tuning <class-ref scheme="cpc">H03J3/12</class-ref></text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J1/025" definition-exists="false" ipc-concordant="H03J1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with voiced announcement</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J1/04" definition-exists="false" ipc-concordant="H03J1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with optical indicating means</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J1/041" definition-exists="false" ipc-concordant="H03J1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/041</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pointers, markers, or the like, for tuning dials; Folding dials</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J1/042" definition-exists="false" ipc-concordant="H03J1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Means insuring a precise reading of the dial, e.g. special scale, local illumination possibly temporary, luminous point moving with the pointer</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J1/044" definition-exists="false" ipc-concordant="H03J1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/044</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Illumination of the tuning dial; On and off switching of the illumination; Circuits related with illumination</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J1/045" definition-exists="false" ipc-concordant="H03J1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="H03J1/047" definition-exists="false" ipc-concordant="H03J1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/047</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using electronic means, e.g. LED's </text><reference><text>display of electronic variables in general <class-ref scheme="cpc">G01R13/00</class-ref>, for discontinuous display <class-ref scheme="cpc">G01R13/404</class-ref></text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="H03J1/048" definition-exists="false" ipc-concordant="H03J1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/048</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with digital indication </text><reference><text>using a microprocessor <class-ref scheme="cpc">H03J1/0016</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="H03J1/06" definition-exists="false" ipc-concordant="H03J1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Driving or adjusting arrangements</text></title-part><title-part><text>combined with other driving or adjusting arrangements, e.g. of gain control</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J1/063" definition-exists="false" ipc-concordant="H03J1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Special arrangements taken in correlation with the wear; Suppressing backlash; Locking in a desired position</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J1/066" definition-exists="false" ipc-concordant="H03J1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>H03J1/066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Constructional details regarding potentiometric setting of voltage or current variable reactances</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J1/08" definition-exists="false" ipc-concordant="H03J1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Toothed-gear drive</text></title-part><title-part><text>Worm drive</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J1/10" definition-exists="false" ipc-concordant="H03J1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rope drive</text></title-part><title-part><text>Chain drive</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J1/12" definition-exists="false" ipc-concordant="H03J1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Friction drive</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J1/14" definition-exists="false" ipc-concordant="H03J1/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Special arrangements for fine and coarse tuning</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J1/16" definition-exists="false" ipc-concordant="H03J1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Single control means independently performing two or more functions</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="H03J1/18" definition-exists="false" ipc-concordant="H03J1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control by auxiliary power</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J1/182" definition-exists="false" ipc-concordant="H03J1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/182</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a ring of magnets or the like</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J1/185" definition-exists="false" ipc-concordant="H03J1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/185</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the auxiliary power producing an adjustment dependent on the current intensity</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J1/187" definition-exists="false" ipc-concordant="H03J1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/187</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the auxiliary power balancing automatically a Wheatstone bridge or the like, that has been unbalanced by the controlling device</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J1/20" definition-exists="false" ipc-concordant="H03J1/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the auxiliary power being switched on as long as controlling current is switched on</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J1/22" definition-exists="false" ipc-concordant="H03J1/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J1/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with stepping arrangements actuated by control pulses</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="H03J3/00" definition-exists="true" ipc-concordant="H03J3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J3/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Continuous tuning </text><reference><text><class-ref scheme="cpc">H03J7/00</class-ref>, <class-ref scheme="cpc">H03J9/00</class-ref> take precedence; combination of continuous and discontinuous tuning other than for bandspreading <class-ref scheme="cpc">H03J5/00</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="H03J3/02" definition-exists="false" ipc-concordant="H03J3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J3/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J3/04" definition-exists="true" ipc-concordant="H03J3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2023-01-01" status="published"><classification-symbol>H03J3/04</classification-symbol><class-title date-revised="2023-01-01"><title-part><text>Arrangements for compensating for variations of physical values, e.g. temperature</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J3/06" definition-exists="true" ipc-concordant="H03J3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2023-01-01" status="published"><classification-symbol>H03J3/06</classification-symbol><class-title date-revised="2023-01-01"><title-part><text>Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J3/08" definition-exists="false" ipc-concordant="H03J3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J3/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by varying a second parameter simultaneously with the tuning, e.g. coupling bandpass filter</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J3/10" definition-exists="false" ipc-concordant="H03J3/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J3/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Circuit arrangements for fine tuning, e.g. bandspreading</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J3/12" definition-exists="false" ipc-concordant="H03J3/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J3/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Electrically-operated arrangements for indicating correct tuning</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J3/14" definition-exists="false" ipc-concordant="H03J3/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J3/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Visual indication, e.g. magic eye</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J3/16" definition-exists="false" ipc-concordant="H03J3/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J3/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tuning without displacement of reactive element, e.g. by varying permeability</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J3/18" definition-exists="false" ipc-concordant="H03J3/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J3/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by discharge tube or semiconductor device simulating variable reactance</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="H03J3/185" definition-exists="false" ipc-concordant="H03J3/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J3/185</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with varactors, i.e. voltage variable reactive diodes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="H03J3/20" definition-exists="false" ipc-concordant="H03J3/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J3/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of single resonant circuit by varying inductance only or capacitance only</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="H03J3/22" definition-exists="false" ipc-concordant="H03J3/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J3/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of single resonant circuit by varying inductance and capacitance simultaneously</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="H03J3/24" definition-exists="false" ipc-concordant="H03J3/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J3/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of more than one resonant circuit simultaneously, the circuits being tuned to substantially the same frequency, e.g. for single-knob tuning</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J3/26" definition-exists="false" ipc-concordant="H03J3/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J3/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the circuits being coupled so as to form a bandpass filter</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="H03J3/28" definition-exists="false" ipc-concordant="H03J3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J3/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J3/30" definition-exists="false" ipc-concordant="H03J3/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J3/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements for ensuring tracking with variable inductors</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J3/32" definition-exists="false" ipc-concordant="H03J3/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J3/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements for ensuring tracking with variable capacitors</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="H03J5/00" definition-exists="true" ipc-concordant="H03J5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Discontinuous tuning</text></title-part><title-part><text>Selecting predetermined frequencies</text></title-part><title-part><text>Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner </text><reference><text><class-ref scheme="cpc">H03J7/00</class-ref>, <class-ref scheme="cpc">H03J9/00</class-ref> take precedence; for bandspreading <class-ref scheme="cpc">H03J3/10</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="H03J5/02" definition-exists="false" ipc-concordant="H03J5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J5/0209" definition-exists="false" ipc-concordant="H03J5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/0209</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, by selecting the corresponding analogue value between a set of non preset values</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J5/0218" definition-exists="false" ipc-concordant="H03J5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/0218</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, by selecting the corresponding analogue value between a set of preset values</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J5/0227" definition-exists="false" ipc-concordant="H03J5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/0227</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a counter</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J5/0236" definition-exists="false" ipc-concordant="H03J5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/0236</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with possibility to skip over certain counter positions, i.e. channel skipping, or scanning the counter position with a variable frequency rate</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J5/0245" definition-exists="false" ipc-concordant="H03J5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/0245</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form </text><reference><text>microprocessor tuning <class-ref scheme="cpc">H03J1/0008</class-ref></text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J5/0254" definition-exists="false" ipc-concordant="H03J5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/0254</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the digital values being transfered to a D/A converter</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="H03J5/0263" definition-exists="false" ipc-concordant="H03J5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/0263</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the digital values being held in an auxiliary non erasable memory</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J5/0272" definition-exists="false" ipc-concordant="H03J5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/0272</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="H03J5/0281" definition-exists="false" ipc-concordant="H03J5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/0281</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the digital values being held in an auxiliary non erasable memory</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J5/029" definition-exists="false" ipc-concordant="H03J5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/029</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with channel skipping capability</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J5/04" definition-exists="false" ipc-concordant="H03J5/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>operated by hand</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J5/06" definition-exists="false" ipc-concordant="H03J5/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Settings determined by single indexing means with snap action</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J5/08" definition-exists="false" ipc-concordant="H03J5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Settings determined by a number of separately-actuated positioning means</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J5/10" definition-exists="false" ipc-concordant="H03J5/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2023-01-01" status="published"><classification-symbol>H03J5/10</classification-symbol><class-title date-revised="2023-01-01"><title-part><text>Settings determined by a number of positioning means mounted on a common support, </text><CPC-specific-text><text>e.g. turret tuner,</text></CPC-specific-text><text> which is adjustable to desired positions, a different positioning means being in operation in each position</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J5/12" definition-exists="false" ipc-concordant="H03J5/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Settings determined by a number of separately-actuated driving means which adjust the tuning element directly to desired settings</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J5/14" definition-exists="false" ipc-concordant="H03J5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>operated by auxiliary power</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J5/143" definition-exists="false" ipc-concordant="H03J5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/143</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Settings determined by a number of positioning means mounted on a common support, e.g. turret tuner, which is adjustable to determined positions, a different positioning means being in operation in each position</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J5/146" definition-exists="false" ipc-concordant="H03J5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/146</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Settings desired by a switch controlled together with the tuning member and which stops the control as soon as a desired position is reached</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J5/16" definition-exists="false" ipc-concordant="H03J5/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Settings determined by a number of separate positioning means actuated by hand</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J5/18" definition-exists="false" ipc-concordant="H03J5/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Settings determined by a number of separate positioning means actuated by electromagnets</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J5/20" definition-exists="false" ipc-concordant="H03J5/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Settings determined by a number of positioning means actuated by a second means adjustable to different positions by the same or by a second auxiliary power</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J5/22" definition-exists="false" ipc-concordant="H03J5/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Settings determined by a number of separately actuated driving means which adjust the tuning element directly to desired settings</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="H03J5/24" definition-exists="true" ipc-concordant="H03J5/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2023-01-01" status="published"><classification-symbol>H03J5/24</classification-symbol><class-title date-revised="2023-01-01"><title-part><text>with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J5/242" definition-exists="false" ipc-concordant="H03J5/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/242</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>used exclusively for band selection</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J5/244" definition-exists="false" ipc-concordant="H03J5/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/244</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using electronic means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J5/246" definition-exists="false" ipc-concordant="H03J5/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/246</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using electronic means </text><reference><text><class-ref scheme="cpc">H03J5/244</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J5/248" definition-exists="false" ipc-concordant="H03J5/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/248</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using electromechanical means</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J5/26" definition-exists="false" ipc-concordant="H03J5/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>operated by hand</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J5/28" definition-exists="false" ipc-concordant="H03J5/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tuning circuits or elements supported on a revolving member with contacts arranged in a plane perpendicular to the axis</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J5/30" definition-exists="false" ipc-concordant="H03J5/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tuning circuits or elements supported on a revolving member with contacts arranged in lines parallel to the axis</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J5/32" definition-exists="false" ipc-concordant="H03J5/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J5/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Stationary tuning circuits or elements selected by push-button</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="H03J7/00" definition-exists="true" ipc-concordant="H03J7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Automatic frequency control</text></title-part><title-part><text>Automatic scanning over a band of frequencies</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="H03J7/02" definition-exists="true" ipc-concordant="H03J7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2023-01-01" status="published"><classification-symbol>H03J7/02</classification-symbol><class-title date-revised="2023-01-01"><title-part><text>Automatic frequency control </text><reference><text><class-ref scheme="cpc">H03J7/18</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J7/023" definition-exists="false" ipc-concordant="H03J7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Neutralization of the automatic frequency correction during a tuning change</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J7/026" definition-exists="false" ipc-concordant="H03J7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Means preventing a wrong working of the automatic frequency correction in case of fading or bad signal/noise ratio</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J7/04" definition-exists="false" ipc-concordant="H03J7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J7/042" definition-exists="false" ipc-concordant="H03J7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with reactance tube</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J7/045" definition-exists="false" ipc-concordant="H03J7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Modification of automatic frequency control sensitivity or linearising automatic frequency control operation; Modification of the working range </text><reference><text><class-ref scheme="cpc">H03J7/10</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J7/047" definition-exists="false" ipc-concordant="H03J7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/047</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Automatic frequency control using an auxiliary signal, e.g. low frequency scanning of the locking range or superimposing a special signal on the input signal</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J7/06" definition-exists="false" ipc-concordant="H03J7/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using counters or frequency dividers</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="H03J7/065" definition-exists="false" ipc-concordant="H03J7/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the counter or frequency divider being used in a phase locked loop</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J7/08" definition-exists="false" ipc-concordant="H03J7/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using varactors, i.e. voltage variable reactive diodes </text><reference><text><class-ref scheme="cpc">H03J7/06</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="H03J7/10" definition-exists="false" ipc-concordant="H03J7/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Modification of automatic frequency control sensitivity or linearising automatic frequency control operation</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="H03J7/12" definition-exists="false" ipc-concordant="H03J7/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combination of automatic frequency control voltage with stabilised varactor supply voltage</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J7/14" definition-exists="false" ipc-concordant="H03J7/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Controlling the magnetic state of inductor cores </text><reference><text><class-ref scheme="cpc">H03J7/06</class-ref> takes precedence</text></reference></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J7/16" definition-exists="false" ipc-concordant="H03J7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>where the frequency control is accomplished by mechanical means, e.g. by a motor</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="H03J7/18" definition-exists="false" ipc-concordant="H03J7/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Automatic scanning over a band of frequencies</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J7/183" definition-exists="false" ipc-concordant="H03J7/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/183</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>combined with selection between different stations transmitting the same programm, e.g. by analysis of the received signal strength</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J7/186" definition-exists="false" ipc-concordant="H03J7/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/186</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using two or more tuners</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J7/20" definition-exists="false" ipc-concordant="H03J7/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element </text><CPC-specific-text><reference><text><class-ref scheme="cpc">H03J7/183</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J7/22" definition-exists="false" ipc-concordant="H03J7/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which an automatic frequency control circuit is brought into action after the scanning action has been stopped </text><reference><text><class-ref scheme="cpc">H03J7/24</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J7/24" definition-exists="false" ipc-concordant="H03J7/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using varactors, i.e. voltage variable reactive diodes </text><reference><text><class-ref scheme="cpc">H03J7/28</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="H03J7/26" definition-exists="false" ipc-concordant="H03J7/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which an automatic frequency control circuit is brought into action after the scanning action has been stopped</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J7/28" definition-exists="false" ipc-concordant="H03J7/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using counters or frequency dividers</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="H03J7/285" definition-exists="false" ipc-concordant="H03J7/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/285</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the counter or frequency divider being used in a phase locked loop</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J7/30" definition-exists="false" ipc-concordant="H03J7/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>where the scanning is accomplished by mechanical means, e.g. by a motor</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="H03J7/305" definition-exists="false" ipc-concordant="H03J7/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/305</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in which an automatic frequency control circuit is brought in action after the scanning action has been stopped</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="H03J7/32" definition-exists="false" ipc-concordant="H03J7/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J7/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with simultaneous display of received frequencies, e.g. panoramic receivers</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="H03J9/00" definition-exists="true" ipc-concordant="H03J9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>H03J9/00</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Remote-control of tuned circuits</text></title-part><title-part><text>Combined remote-control of tuning and other functions, e.g. brightness, amplification </text><reference><text>mechanical remote-control arrangements <class-ref scheme="cpc">H03J1/00</class-ref> </text><CPC-specific-text><text>; using a microprocessor <class-ref scheme="cpc">H03J1/0025</class-ref>; constructional details of remote control switching devices <class-ref scheme="cpc">H01H9/0235</class-ref></text></CPC-specific-text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="H03J9/002" definition-exists="false" ipc-concordant="H03J9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J9/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising one or more tuning stages separated from the rest of a receiver</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="H03J9/005" definition-exists="false" ipc-concordant="H03J9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J9/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using non-electrical means without push-button control, e.g. pneumatic, hydraulic or sound wave transmission, Bowden cables</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="H03J9/007" definition-exists="false" ipc-concordant="H03J9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J9/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by voltages or currents with different frequencies or phases</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="H03J9/02" definition-exists="false" ipc-concordant="H03J9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J9/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using radio transmission</text></title-part><title-part><text>using near-field transmission</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="H03J9/04" definition-exists="false" ipc-concordant="H03J9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J9/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using ultrasonic, sonic or infrasonic waves</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="H03J9/06" definition-exists="false" ipc-concordant="H03J9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J9/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using electromagnetic waves other than radio waves, e.g. light</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="true" level="6" additional-only="true" sort-key="H03J200/00" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/00</classification-symbol>
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<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="H03J200/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Indexing scheme relating to tuning resonant circuits and selecting resonant circuits</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/01" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/01</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Circuitry controlling the selecting or switching action</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Algorithm used as input for AFC action alignment receiver</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/03" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/03</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alignment of a receiver during fabrication</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alignment of a transmitter during fabrication</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/05" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/05</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alignment of transmitter with a receiver, after fabrication</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tuning of antenna</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/07" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/07</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Calibration of receivers, using quartz crystal oscillators as reference</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Calibration of receivers, in particular of a band pass filter</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/09" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/09</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Calibration of oscillator in receiver, using an external carrier frequency as reference</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tuning of a resonator by means of digitally controlled capacitor bank</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/12" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radio receiver combined with a GPS receiver</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/13" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/13</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Television receiver combined with a GPS receiver</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/14" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tunable filter in receiver contributing to image rejection</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/15" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/15</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tuning of resonator by means of digitally controlled inductor bank</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/16" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Interpolation of control values for varicaps</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/17" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/17</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Elimination of interference caused by harmonics of local oscillator</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/18" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tuning of a master filter in order to tune its slave filter</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/19" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/19</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Resonator in MEMS technology</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/20" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radio receiver with possibility to choose a station with a certain program style</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/21" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/21</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Television receiver with possibility to choose a station with a certain program style</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/22" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Remote control device controlling cursor and/or including a cursor detecting device</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/23" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/23</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Remote control device with display showing data to be transmitted to the controlled apparatus</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/24" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Remote control device with display showing program content</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/25" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/25</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Remote control device with display</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="H03J200/26" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Remote control device with touch screen display</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/27" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/27</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Adjusting the seek sensitivity of a scanning or sweeping receiver</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/28" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Automatic self-alignment of a receiver</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/29" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/29</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Self-calibration of a receiver</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/30" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radio receiver with speech synthesis ability, used for conveying information that is shown on the display</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/31" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/31</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Several sweeping or scanning speeds</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/32" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tuning of tracking filter</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/33" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/33</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tuning of filter by controlling transconductance</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/34" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tuning of oscillator by controlling transconductance</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/35" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/35</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Inductance tunable by switching in/out parts of the inductor</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/36" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>H03J2200/36</classification-symbol><class-title date-revised="2016-08-01"><title-part><text>Circuit arrangements for, e.g. increasing the tuning range, linearizing the voltage-capacitance relationship, lowering noise, constant slope in different bands</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/37" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/37</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control voltage applied to the anode of the varicap</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/38" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control voltage applied to the cathode of the varicap</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/39" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>H03J2200/39</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Variable capacitors implemented using microelectro-mechanical systems [MEMS]</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="H03J200/40" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>H03J2200/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Conversion to a zero or near-zero intermediate frequency</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></class-scheme> |