发明授权
- 专利标题： Multiple function control circuit for an AM stereo receiver
- 专利标题（中）： AM立体声接收机的多功能控制电路
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申请号： US121361申请日： 1987-11-16
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公开(公告)号： US4845750A公开(公告)日： 1989-07-04
- 发明人: Lawrence M. Ecklund , Roy H. Espe
- 申请人： Lawrence M. Ecklund , Roy H. Espe
- 申请人地址： IL Schaumburg
- 专利权人： Motorola, Inc.
- 当前专利权人： Motorola, Inc.
- 当前专利权人地址： IL Schaumburg
- 主分类号： H04H1/00
- IPC分类号： H04H1/00 ; H04H20/49
摘要：
In an AM stereophonic receiver a voltage is developed in response to negative overmodulation in the received signal, to detection of a pilot tone, to detection of a minimum or no signal strength condition, and to external control. Predetermined levels of this voltage are utilized to enable/disenable various function circuits within the receiver to optimize the operation.
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