发明名称 |
EQUALIZZAZIONE DEI LIVELLI AUDIO DI RADIOSEGNALI FM A DIFFUSIONE CIRCOLARE E DI RADIOSEGNALI DM A LIMITATA DEVIAZIONE DI FREQUENZA |
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 |
ITMI913006(D0) |
申请公布日期 |
1991.11.12 |
申请号 |
IT1991MI03006 |
申请日期 |
1991.11.12 |
申请人 |
THOMSON CONSUMER ELECTRONICS |
发明人 |
WIGNOT LEROY SAMUEL;GRIEPENTROG DAL FRANK |
分类号 |
H03G3/20;H04B1/16;H04N5/44;H04N5/60;(IPC1-7):H04H/ |
主分类号 |
H03G3/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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