JPS5922592U

JPS5922592U - headphone

Info

Publication number: JPS5922592U
Application number: JP11879282U
Authority: JP
Inventors: 竹田　幸男
Original assignee: 松下電器産業株式会社
Priority date: 1982-08-03
Filing date: 1982-08-03
Publication date: 1984-02-10

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

[Brief explanation of the drawing]

第１図及び第２図は本考案の一実施例を示し、゛第１図
Ａは全体の斜視図、同図Ｂはマイクロホン増幅部を裏面
側から見た斜視図、第２図は要部の電気回路図であり、
第３図は別の実施例におけるヘッドホンの電気回路図、
第４図はさむに別の実施例におけるヘッドホンの電気回
路図である。１・・・・・・ヘッドホン本体、２・・・・・・入カブ
ラグ（入力端子）、３・・・・・・入力コード、４・・
・・・・マイクロホン増幅部、６・・・・・・マイクロ
ホン、１１．１２・・・・・・スピーカユニット、１３
・・・・・・マイクロホン増幅回路（付加回路）、１６
〜１８．２３〜２７・・・・・・切換スイッチ。Figures 1 and 2 show an embodiment of the present invention, in which Figure 1A is a perspective view of the whole, Figure B is a perspective view of the microphone amplification section seen from the back side, and Figure 2 is a main part. is an electrical circuit diagram of
FIG. 3 is an electrical circuit diagram of headphones in another embodiment,
FIG. 4 is an electrical circuit diagram of headphones in another embodiment. 1...Headphone body, 2...Input plug (input terminal), 3...Input cord, 4...
...Microphone amplification section, 6...Microphone, 11.12...Speaker unit, 13
...Microphone amplifier circuit (additional circuit), 16
~18.23~27...Choice switch.

Claims

[Scope of utility model registration request]

Attach an additional circuit such as a microphone amplifier circuit to an appropriate position between the input cord that connects the headphone body and the headphone input terminal, and select whether the output of this additional circuit is the input from the input terminal or both. A headphone configured to mix the following to drive a speaker unit of the headphone body.