发明授权
- 专利标题： Sound multiplex receiver
- 专利标题（中）： 声音多路复用接收机
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申请号： US864656申请日： 1986-05-19
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公开(公告)号： US4703501A公开(公告)日： 1987-10-27
- 发明人: Yoshiro Sugai , Hiroyuki Kimura
- 申请人： Yoshiro Sugai , Hiroyuki Kimura
- 申请人地址： JPX Tokyo
- 专利权人： Pioneer Electronic Corporation
- 当前专利权人： Pioneer Electronic Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX60-103945 19850517
- 主分类号： H03G3/34
- IPC分类号： H03G3/34 ; H04B1/10 ; H04B1/16 ; H04H1/00 ; H04H40/63 ; H04H40/72 ; H04H5/00
摘要：
A multiplex sound receiver in which a detection signal is extracted from a broadcast to indicate whether the broadcast is monaural, stereo, or multi-lingual. The detection signal is used for controlling the separating of the channels. According to the invention, the detection signal is processed in accordance with the strength of the broadcast or the noise level. For instance, the detection signal is integrated over a period that is increased when the field strength decreases.
公开/授权文献
- US5958788A Luminol tagged polymers for treatment of industrial systems 公开/授权日：1999-09-28
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