发明名称 TONPEGELAUSGLEICH VON FM- SENDE- UND FM- SCHMALBANDRUNDFUNKSIGNALEN
摘要 <p>A television receiver includes a single tuner for tuning both television channels and broadcast FM stations. The tuner serves as the first conversion stage of a double conversion FM receiver, wherein the mixer of an FM radio integrated circuit serves as the second conversion stage. A single discriminator circuit is employed for tuning FM radio signals having a first deviation, such as broadcast FM radio signals, and FM radio signals having a second deviation, such as signals of the National Weather Service. Circuitry for amplifying the output signal of the discriminator circuit exhibits a first gain when amplifying FM signals having the first deviation, and exhibiting a second gain when amplifying FM signals having the second deviation.</p>
申请公布号 DE4136471(A1) 申请公布日期 1992.05.21
申请号 DE19914136471 申请日期 1991.11.06
申请人 THOMSON CONSUMER ELECTRONICS, INC., INDIANAPOLIS, IND., US 发明人 WIGNOT, LEROY SAMUEL;GRIEPENTROG, DAL FRANK, INDIANAPOLIS, IND., US
分类号 H03G3/20;H04B1/16;H04N5/44;H04N5/60 主分类号 H03G3/20
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