发明授权
- 专利标题： FM stereophonic receiver having muting and mode changing
- 专利标题（中）： FM立体声接收机具有静音和模式改变
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申请号： US815749申请日： 1977-07-14
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公开(公告)号： US4157455A公开(公告)日： 1979-06-05
- 发明人: Masanao Okatani , Yoshiaki Ishibashi , Yoshiro Sugai
- 申请人： Masanao Okatani , Yoshiaki Ishibashi , Yoshiro Sugai
- 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： JPX51/83717 19760714
- 主分类号： H03G3/20
- IPC分类号： H03G3/20 ; H03G3/34 ; H04B1/10 ; H04B1/16 ; H04H1/00 ; H04H40/72 ; H04H5/00
摘要：
An FM stereophonic receiver includes a muting circuit for interrupting or reducing its signal reproduction output according to the electric field strength and a mode changing circuit for changing its reproduction mode to a stereophonic reproduction mode or a monaural reproduction mode according to the electric field strength. In the receiver, manual switches are operated to switch the muting operation point of the muting circuit and the stereophonic and monaural change-over point of the mode changing circuit, whereby the signal reproduction conditions can be suitably selected according to the choice or wish of a user.
公开/授权文献
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