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    RADIO RECEIVER
    2.
    发明专利
    RADIO RECEIVER 未知

    公开(公告)号：CA1096447A

    公开(公告)日：1981-02-24

    申请号：CA280614

    申请日：1977-06-15

    Applicant: SONY CORP

    Inventor： SOMENO NOBORU ,  MURATA NORIO ,  OHAMA SOICHI

    IPC: H03J5/02 ,  H03J7/28 ,  H03L7/18 ,  H03L7/185 ,  H04B1/26 ,  H04B1/40 ,  H04B1/32

    Abstract: A radio receiver having RF, frequency converter, demodulator and audio stages, in which the frequency converter stage is connected to a local oscillator composed of a phase locked loop. The radio receiver includes a variable frequency divider inserted into the phase locked loop, a memory circuit for variably controlling the frequency dividing ratio of the frequency divider in accordance with a signal to be received, a scanning counter for supplying a read-out control signal to the memory circuit, a clock signal source for generating a clock signal, a counter control circuit for controlling supply and supply-terminating of the clock signal fed to the scanning counter, a level detecting circuit for detecting if a signal level, a switching circuit for switching a received channel, and a circuit for cutting off the clock signal fed to the scanning counter when outputs of the switching circuit and level detecting circuit are fed thereto.

    8.
    发明专利
    失效

    公开(公告)号：JPS5132162A

    公开(公告)日：1976-03-18

    申请号：JP10542474

    申请日：1974-09-12

    Applicant: SONY CORP

    Inventor： MURATA NORIO

    IPC: H03K23/64

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