JPS5995412U

JPS5995412U - Muting circuit

Info

Publication number: JPS5995412U
Application number: JP19248082U
Authority: JP
Inventors: 須川　正彦
Original assignee: 三洋電機株式会社
Priority date: 1982-12-20
Filing date: 1982-12-20
Publication date: 1984-06-28

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

[Brief explanation of the drawing]

第１図は従来のテープレコーダの一部のブロック図、第
２図は第１図のテープレコーダに適用すれた従来のミュ
ーティング回路め結線図、第３図　　　　　−はこの考
案のミューティング回路の１実施例の結線図である。６・・・ラインアンプ、β３・・・第２コンデンサ、３
５・・・第１充放電部、３７・・・第３コンデンサ、３
９・・・第２充放電部、５１・・・作動部、５２・・・
ミューティング回路。Fig. 1 is a block diagram of a part of a conventional tape recorder, Fig. 2 is a wiring diagram of a conventional muting circuit applied to the tape recorder of Fig. 1, and Fig. 3 - is a diagram of the muting circuit of this invention. FIG. 2 is a wiring diagram of one embodiment. 6... Line amplifier, β3... Second capacitor, 3
5... First charging/discharging section, 37... Third capacitor, 3
9... Second charging/discharging section, 51... Operating section, 52...
Muting circuit.

Claims

[Scope of utility model registration request]

A first charging/discharging section having one capacitor that is charged when the power is turned on and outputting a first drive signal during a charging period of the one capacitor, and the other capacitor having a different capacity from the one capacitor that is discharged when the power is cut off. a second charging/discharging section that outputs a second drive signal during a discharge period of the other capacitor; and an operating section that is operated by the first or second drive signal to reduce the output signal of the output section. circuit.