JPS591220U

JPS591220U - headphone system

Info

Publication number: JPS591220U
Application number: JP9486282U
Authority: JP
Inventors: 政治森
Original assignee: クラリオン株式会社
Priority date: 1982-06-23
Filing date: 1982-06-23
Publication date: 1984-01-06

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 drawings]

第１図は本考案による２チヤンネルを有するステレオ・
ヘッドホン・システムの構成を示すブロック図、第２図
は本考案ｉこよる簡単化された２チヤンネル・ヘッドホ
ン・システムの構成を示すブロック図、第３図は本考案
のさらに他の一つの実施の態様によるヘッドホン拳シス
テムの構成を示すブロック図である。１・・・ラジオ、カセットなどのソース、２．３・・・
手動音量調整器、４，５・・・整流器、６．７・・・積
分回路、８．　１０．　１１・・・加算回路、９．９’
、　　　”１７、　１７’・・・電子音量調整器、１２
，１３゜１８．１８’・・・増幅器、１４．１５・・・
ヘッドホンのスピーカ、１６．１６’・・・マイクロフ
ォン、１９．１９’・・・周囲音量調整器。Figure 1 shows a stereo system with two channels according to the present invention.
FIG. 2 is a block diagram showing the configuration of a simplified two-channel headphone system according to the present invention, and FIG. 3 is a block diagram showing the configuration of a simplified two-channel headphone system according to the present invention. FIG. 1 is a block diagram illustrating a configuration of a headphone fist system according to an embodiment. 1... Sources such as radios and cassettes, 2.3...
Manual volume adjuster, 4, 5... Rectifier, 6.7... Integrating circuit, 8. 10. 11...Addition circuit, 9.9'
, "17, 17'...Electronic volume adjuster, 12
, 13°18.18'...Amplifier, 14.15...
Headphone speaker, 16.16'...Microphone, 19.19'...Ambient volume adjuster.

Claims

[Scope of utility model registration request]

A headphone system comprising at least one channel of signal source, a manual volume adjustment circuit, an amplifier and a speaker, wherein the output of the manual volume adjustment circuit is connected on the one hand to the input of the amplifier via a first summing circuit, and on the other hand When connected to a rectifier and an integrator circuit, and multiple channels are present, the output levels thus obtained for each channel are summed in a second summing circuit or the manual volume of each channel is The outputs of the adjustment circuits are summed by a second adder circuit and then input to the rectifier circuit, and furthermore, at least one microphone is provided for detecting surrounding sounds, and the output of the microphone is added to the first adder circuit.
The output is amplified by an amplifier via an electronic volume controller, and the output is amplified by an amplifier in accordance with the output of the integrating circuit or the second adding circuit in the second electronic volume controller via an ambient volume adjustment circuit. The output of the second electronic volume controller is combined with the signal from the signal source by the first summing circuit for each channel, or for each channel if multiple microphones are provided. A headphone system characterized by being mixed.