JPS6472607A - Headphone switching circuit - Google Patents

Headphone switching circuit

Info

Publication number
JPS6472607A
JPS6472607A JP62229113A JP22911387A JPS6472607A JP S6472607 A JPS6472607 A JP S6472607A JP 62229113 A JP62229113 A JP 62229113A JP 22911387 A JP22911387 A JP 22911387A JP S6472607 A JPS6472607 A JP S6472607A
Authority
JP
Japan
Prior art keywords
headphone
jack
speaker
switching circuit
plugging
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
JP62229113A
Other languages
Japanese (ja)
Inventor
Muneo Hirama
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP62229113A priority Critical patent/JPS6472607A/en
Publication of JPS6472607A publication Critical patent/JPS6472607A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent production of noise at the time of supplying power by plugging in a headphone plug to a headphone jack so as to interrupt a signal supplied to each speaker. CONSTITUTION:In a plugging in a plug 17 connecting to a headphone into a jack 16, the path for driving left/right speakers 5L, 5R for front, left/right speakers 11L, 11R for rear and a speaker 14 for center is interrupted by the jack 16. Moreover, a left/right channel audio signal to the jack 16 is extracted from the post-stage of speaker protection switches 3L, 3R. Thus, the noise to be produced when operating the power switch is prevented.
JP62229113A 1987-09-12 1987-09-12 Headphone switching circuit Pending JPS6472607A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62229113A JPS6472607A (en) 1987-09-12 1987-09-12 Headphone switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62229113A JPS6472607A (en) 1987-09-12 1987-09-12 Headphone switching circuit

Publications (1)

Publication Number Publication Date
JPS6472607A true JPS6472607A (en) 1989-03-17

Family

ID=16886949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62229113A Pending JPS6472607A (en) 1987-09-12 1987-09-12 Headphone switching circuit

Country Status (1)

Country Link
JP (1) JPS6472607A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5832438A (en) * 1995-02-08 1998-11-03 Sun Micro Systems, Inc. Apparatus and method for audio computing
WO1999016286A1 (en) * 1997-09-24 1999-04-01 Robert Bosch Gmbh Car radio system
US9136806B2 (en) 2012-10-11 2015-09-15 Canon Kabushiki Kaisha Amplifier circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5832438A (en) * 1995-02-08 1998-11-03 Sun Micro Systems, Inc. Apparatus and method for audio computing
WO1999016286A1 (en) * 1997-09-24 1999-04-01 Robert Bosch Gmbh Car radio system
US6567655B1 (en) 1997-09-24 2003-05-20 Robert Bosch Gmbh Car radio system
US9136806B2 (en) 2012-10-11 2015-09-15 Canon Kabushiki Kaisha Amplifier circuit

Similar Documents

Publication Publication Date Title
US5099514A (en) Multi-purpose telephone accessory unit
KR910007197B1 (en) Remote controll circuit
JPS56104510A (en) Electric power amplifier
JPS63224599A (en) Stereo processing unit
GB1504065A (en) Headphone
CA2034287A1 (en) Acoustic signal reproducing apparatus
AU542361B2 (en) Headphone speaker unit
JPS51127609A (en) Switching circuit for band width of intermediate frequency amplifying stage of fm receiver
CA2132207A1 (en) Dual Element Headphone
CA2071708A1 (en) Audio surround system with stereo enhancement and directivity servos
JPS60694A (en) Semiconductor memory
JPH01133454A (en) Voice amplification system
JPH02181506A (en) Audio amplifier
CA2170545A1 (en) Audio Communication Control Unit
CA2012241A1 (en) Audio switching for an audio/video system having s-video capability
WO2002091799A3 (en) System for transitioning from stereo to simulated surround sound
IT1251647B (en) Electrical apparatus, especially control and maneuvering apparatus for motor vehicles and manufacturing process
JPH02239795A (en) Speaker device having direcitivity
ES2001861A6 (en) Modular integral circuit interrupter
GB622401A (en) Improvements in or relating to stereophonic reproduction apparatus
CA2013333A1 (en) Speaker system
AU1243883A (en) Audio preemphasized signal limiting
DE2929647A1 (en) HF receiver circuit for e.g. motor vehicle - has stereo to mono changeover with filter and threshold switches to reduce interference
JPS61198950A (en) Loudspeaker telephone set
GB1417193A (en) Electric motor switch control assembly