发明授权
- 专利标题： AM stereo receiver having signal-controlled corrector
- 专利标题（中）： AM立体声接收机具有信号控制校正器
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申请号： US837257申请日： 1977-09-27
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公开(公告)号： US4159396A公开(公告)日： 1979-06-26
- 发明人: Francis H. Hilbert , Norman W. Parker
- 申请人： Francis H. Hilbert , Norman W. Parker
- 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 ; H04H5/00
摘要：
A signal level controlled switching circuit removes the stereo correction factor in a compatible AM stereo receiver when the received signal level is low enough to allow signal degradation due to noise affecting the correction factor. The switching circuit can operate on either an instantaneous or an average signal level.
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