Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Syuuji Matsuura0
Date of Patent
October 30, 2007
0Patent Application Number
099819250
Date Filed
October 19, 2001
0Patent Primary Examiner
Patent abstract
An IF signal output from an IF amplifying circuit included in a tuner is converted to have a band width for transmission by an SAW filter and has unnecessary signals removed therefrom. Thereafter, the resulting signal has its gain made constant by an IFAGC circuit, amplified by an IF amplifying circuit, unnecessary band components are removed by a lowpass filter, and balanced IF signals are output from unbalance/balance converting circuit and provided to a QAM demodulating circuit.
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