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    Fm stereophonic receiver detection apparatus and disabling means
    51.
    发明授权
    Fm stereophonic receiver detection apparatus and disabling means 失效
    FM立体声接收机检测装置和消除装置

    公开(公告)号：US3707603A

    公开(公告)日：1972-12-26

    申请号：US3707603D

    申请日：1969-12-29

    申请人： RCA CORP

    发明人： LIMBERG ALLEN LEROY

    IPC分类号： H04H20/88 ,  H03D1/22 ,  H03D3/00 ,  H04B1/16 ,  H04N9/70 ,  H04S1/00 ,  H04S7/00 ,  H04H5/00

    CPC分类号： H03D1/2227 ,  H04B1/1646 ,  H04N9/70

    摘要： A detector for deriving stereophonic audio difference (L-R) signal from a stereophonic composite signal and matrix amplifier means coupled to the detector for combining the difference signals with audio sum (L+R) signals to produce left (L) and right (R) audio signals. Automatic switching means for transferring the system between monophonic and stereophonic reproduction modes is also provided. The system is adapted for fabrication in integrated circuit form.

    摘要翻译： 用于从立体声复合信号和矩阵放大器装置中导出立体声音频差（LR）信号的检测器，耦合到检测器，用于将差信号与音频和（L + R）信号组合以产生左（L）和右（R） 信号。 还提供了用于在单声道和立体声再现模式之间传送系统的自动切换装置。 该系统适用于以集成电路形式制造。