Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 2, 2007
Patent Application Number
10367835
Date Filed
February 19, 2003
Patent Primary Examiner
Patent abstract
Example burst signal sampling circuitry including synchronous separator circuit(s), waveshaping circuit(s), bandpass amplifier circuit(s), and burst separator circuit(s) is provided in order to extract burst signal(s) from video signal(s) output from video amplifier circuit(s). Level converting circuitry ACC detector/amplifier circuit(s) is provided in order to convert fluctuation in the burst signal(s) to DC voltage(s). This DC voltage(s) is fed back by way of intervening control circuit(s) to the cathode side(s) of input tuning variable capacitance diode(s) constituting frequency characteristics correction circuit(s) of input tuning circuit(s).
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