JPH0485913U - - Google Patents

Info

Publication number
JPH0485913U
JPH0485913U JP12846490U JP12846490U JPH0485913U JP H0485913 U JPH0485913 U JP H0485913U JP 12846490 U JP12846490 U JP 12846490U JP 12846490 U JP12846490 U JP 12846490U JP H0485913 U JPH0485913 U JP H0485913U
Authority
JP
Japan
Prior art keywords
control signal
vca
circuit
vca control
audio
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP12846490U
Other languages
English (en)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP12846490U priority Critical patent/JPH0485913U/ja
Publication of JPH0485913U publication Critical patent/JPH0485913U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Amplification And Gain Control (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例を示すブロツク図、
第2図はVCAの特性図、第3図は従来の音声信
号遮断装置を示すブロツク図である。 4……VCA、6……ミユート回路、9……マ
イクロコンピユータ、11……VCA制御信号遮
断回路、Tr……ミユートトランジスタ、Tr
……VCA制御信号遮断トランジスタ。

Claims (1)

    【実用新案登録請求の範囲】
  1. 音響装置の出力からスピーカーに至る信号経路
    中に、VCA制御信号の電圧レベルと利得とが正
    の相関関係を持つVCAとミユート回路とを直列
    に接続した音声信号遮断装置において、上記VC
    Aに至るVCA制御信号の供給経路に、オンされ
    ることによつてVCA制御信号をアースと短絡さ
    せるVCA制御信号遮断回路を設け、ミユート信
    号を前記ミユート回路と上記VCA制御信号遮断
    回路とに供給して上記両回路をオンさせるように
    構成したことを特徴とする音声信号遮断装置。
JP12846490U 1990-11-30 1990-11-30 Pending JPH0485913U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12846490U JPH0485913U (ja) 1990-11-30 1990-11-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12846490U JPH0485913U (ja) 1990-11-30 1990-11-30

Publications (1)

Publication Number Publication Date
JPH0485913U true JPH0485913U (ja) 1992-07-27

Family

ID=31875924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12846490U Pending JPH0485913U (ja) 1990-11-30 1990-11-30

Country Status (1)

Country Link
JP (1) JPH0485913U (ja)

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