JPS59159093U - Audio signal control device - Google Patents

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) [Summary] 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図及び第３図は本考案の説明に供する路線図、第２
図は本考案音声信号制御装置の一実施例を示す結線図で
ある。 １はマイク、２はヘッドホン、３は３極単頭プラグ、４
は磁気テープ、７及び１０は再生磁気ヘッド、９及び１
５はスピーカ、１４は差動増幅器、１６は３極単頭ジャ
ックである。Figures 1 and 3 are route maps used to explain the present invention;
The figure is a wiring diagram showing an embodiment of the audio signal control device of the present invention. 1 is a microphone, 2 is a headphone, 3 is a 3-pole single head plug, 4
is a magnetic tape, 7 and 10 are reproduction magnetic heads, 9 and 1 are
5 is a speaker, 14 is a differential amplifier, and 16 is a three-pole single-head jack.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 音声信号が第１及び第２の伝送路を介して供給される減
算回路と、該減算回路の出力が供給されるスピーカと、
第１及び第２の接点並びに共通接点を備える３極単頭ジ
ャックとを有し、上記第２の接点に上記第２の伝送路か
らの上記音声信号が供給されるようになされると共に、
上記共通接点が接地されて成り、上記、３極単頭ジャッ
クの使用時において、上記第２の接点及び上記共通接点
間が開放状態のときは、上記減算回路によって上記第１
及び第２の伝送路か゛らの上記音声信号が相殺され、短
絡状態のときは上記第１の伝送路からの上記音声信号が
上記減算回路を介して上記スピーカに供給されるように
して成る音声信号制御装置。a subtraction circuit to which the audio signal is supplied via first and second transmission paths; and a speaker to which the output of the subtraction circuit is supplied.
a three-pole single-head jack having first and second contacts and a common contact, the second contact being supplied with the audio signal from the second transmission path;
The common contact is grounded, and when the 3-pole single-head jack is in use and the connection between the second contact and the common contact is open, the subtraction circuit causes the first
and the audio signal from the second transmission path are canceled out, and in the case of a short circuit, the audio signal from the first transmission path is supplied to the speaker via the subtraction circuit. Control device.