JPS5837211U - Muting circuit - Google Patents

Muting circuit

Info

Publication number
JPS5837211U
JPS5837211U JP12980781U JP12980781U JPS5837211U JP S5837211 U JPS5837211 U JP S5837211U JP 12980781 U JP12980781 U JP 12980781U JP 12980781 U JP12980781 U JP 12980781U JP S5837211 U JPS5837211 U JP S5837211U
Authority
JP
Japan
Prior art keywords
transistor
biased
control signal
muting
capacitor
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
JP12980781U
Other languages
Japanese (ja)
Inventor
坂本　章治
Original Assignee
三洋電機株式会社
鳥取三洋電機株式会社
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 by 三洋電機株式会社, 鳥取三洋電機株式会社 filed Critical 三洋電機株式会社
Priority to JP12980781U priority Critical patent/JPS5837211U/en
Publication of JPS5837211U publication Critical patent/JPS5837211U/en
Pending legal-status Critical Current

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  • Amplifiers (AREA)
  • Noise Elimination (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案のミュ−ティング回路の構成を示す図、
第２図は第１図要部の波形図である。 １・・・第１時定数回路、２・・・第２時定数回路、３
・　・・・第３　時定９回路、４・・・ワンショットマ
ルチバイブレータ−１Ｔｒ□、　Ｔｒ３・・・ミューテ
ィング制御信号発生用トランジスタ、Ｔｒ２・・・ミュ
ーティング用トランジスタ、ＳＷｌ・・・電源スィッチ
。FIG. 1 is a diagram showing the configuration of the muting circuit of the present invention.
FIG. 2 is a waveform diagram of the main part of FIG. 1. 1... First time constant circuit, 2... Second time constant circuit, 3
・...3rd time-fixed 9 circuit, 4...One-shot multivibrator-1Tr□, Tr3...Transistor for generating muting control signal, Tr2...Transistor for muting, SWl...Power switch .

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ベース電極にコンデンサーと抵抗よりなり且つダイオー
ドを介して連結された第１、第２時定数回路が接続され
てバイアスされ、又エミッタ電極に抵抗、コンデンサー
と放電防止用ダイオードよりなる第３時定数回路が接続
されてバイアスされ、且つコレクタ電極からミューティ
ング制御信号を出力するトランジスタと、該トランジス
タよりのミューティング制御信号により導通され信号ラ
インを接地するトランジスタと、バンド切換えあるいは
ファンクション切換えに携連して発生する単パルスによ
り導通され、前記第２時定数回路のコンデンサーの電荷
を放電させるトランジスタで構成したことを特徴とする
ミューティング回路。First and second time constant circuits consisting of a capacitor and a resistor and connected via a diode are connected to the base electrode and biased, and a third time constant circuit consisting of a resistor, a capacitor, and a discharge prevention diode is connected to the emitter electrode. A transistor is connected to and biased and outputs a muting control signal from the collector electrode, a transistor is made conductive by the muting control signal from the transistor and grounds the signal line, and a transistor is connected to the transistor to be biased and output a muting control signal from the collector electrode, and a transistor that is connected to the transistor and is biased and outputs a muting control signal from the collector electrode. A muting circuit comprising a transistor that is made conductive by a generated single pulse and discharges the charge of a capacitor of the second time constant circuit.
JP12980781U 1981-08-31 1981-08-31 Muting circuit Pending JPS5837211U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12980781U JPS5837211U (en) 1981-08-31 1981-08-31 Muting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12980781U JPS5837211U (en) 1981-08-31 1981-08-31 Muting circuit

Publications (1)

Publication Number Publication Date
JPS5837211U true JPS5837211U (en) 1983-03-10

Family

ID=29923469

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12980781U Pending JPS5837211U (en) 1981-08-31 1981-08-31 Muting circuit

Country Status (1)

Country Link
JP (1) JPS5837211U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58107608U (en) * 1982-01-13 1983-07-22 株式会社富士通ゼネラル Muting circuit
JPH0675111U (en) * 1993-11-16 1994-10-25 セイレイ工業株式会社 Residual structure of root of foliage processor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50841B1 (en) * 1970-03-10 1975-01-13

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50841B1 (en) * 1970-03-10 1975-01-13

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58107608U (en) * 1982-01-13 1983-07-22 株式会社富士通ゼネラル Muting circuit
JPH0675111U (en) * 1993-11-16 1994-10-25 セイレイ工業株式会社 Residual structure of root of foliage processor

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