DE68920909D1 - Stummschaltung für Audioverstärker. - Google Patents

Stummschaltung für Audioverstärker.

Info

Publication number: DE68920909D1
Authority: DE; Germany
Prior art keywords: mute; audio amplifiers; amplifiers; audio
Prior art date: 1988-06-02
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.): Expired - Fee Related

Application number

DE68920909T

Other languages

English (en)

Other versions

DE68920909T2 (de

Inventor

Edoardo Botti

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

STMicroelectronics SRL

Original Assignee

SGS Thomson Microelectronics SRL

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.)

1988-06-02

Filing date

1989-05-16

Publication date

1995-03-16

1989-05-16 Application filed by SGS Thomson Microelectronics SRL filed Critical SGS Thomson Microelectronics SRL

1995-03-16 Publication of DE68920909D1 publication Critical patent/DE68920909D1/de

1995-10-05 Application granted granted Critical

1995-10-05 Publication of DE68920909T2 publication Critical patent/DE68920909T2/de

2009-05-17 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
- H03G3/348—Muting in response to a mechanical action or to power supply variations, e.g. during tuning; Click removal circuits

DE68920909T 1988-06-02 1989-05-16 Stummschaltung für Audioverstärker. Expired - Fee Related DE68920909T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
IT20848/88A IT1217773B (it)	1988-06-02	1988-06-02	Circuito di ammutolimento per amplificatori audio

Publications (2)

Publication Number	Publication Date
DE68920909D1 true DE68920909D1 (de)	1995-03-16
DE68920909T2 DE68920909T2 (de)	1995-10-05

Family

ID=11172975

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE68920909T Expired - Fee Related DE68920909T2 (de)	1988-06-02	1989-05-16	Stummschaltung für Audioverstärker.

Country Status (5)

Country	Link
US (1)	US4956616A (de)
EP (1)	EP0344510B1 (de)
JP (1)	JPH02111110A (de)
DE (1)	DE68920909T2 (de)
IT (1)	IT1217773B (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0666592B2 (ja) *	1989-11-30	1994-08-24	株式会社東芝	電力増幅装置
US5426394A (en) *	1993-03-12	1995-06-20	Thomson Consumer Electronics S.A.	Sound intermediate frequency amplifier for a broadcast receiver
DE4329638C2 (de) *	1993-09-02	1996-10-24	Telefunken Microelectron	Lauthöreinrichtung
DE69406108T2 (de) *	1994-04-15	1998-02-12	St Microelectronics Srl	Niederfrequenzverstärker
US6316993B1 (en) *	1999-02-22	2001-11-13	Texas Instruments Incorporated	Analog circuitry for start-up glitch suppression
TWI320996B (en) *	2006-07-06	2010-02-21	Tatung Co	Pop sound prevention module and speaker apparatus thereof
US7460441B2 (en) *	2007-01-12	2008-12-02	Microchip Technology Incorporated	Measuring a long time period
CN102868956B (zh) *	2012-09-24	2015-02-11	深圳市纳芯威科技有限公司	噪声门电路以及音频功放设备
CN113824470A (zh) *	2021-09-26	2021-12-21	海南宝通实业公司	一种跳频收信话音质量的改善方法及装置
CN115379344A (zh) *	2022-09-14	2022-11-22	重庆长安汽车股份有限公司	车载音响的静音电路、装置及车辆

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5339170Y2 (de) *	1971-12-17	1978-09-21
US4034268A (en) *	1975-11-10	1977-07-05	Heath Company	Speaker protection circuit
JPS5935522B2 (ja) *	1979-10-16	1984-08-29	ヤマハ株式会社	電力増幅器
JPS60229507A (ja) *	1984-04-27	1985-11-14	Matsushita Electric Ind Co Ltd	ミユ−ト回路
JP3546335B2 (ja) *	1994-06-21	2004-07-28	生化学工業株式会社	注射具のシリンダ筒のための補助具

1988
- 1988-06-02 IT IT20848/88A patent/IT1217773B/it active
1989
- 1989-05-16 EP EP89108742A patent/EP0344510B1/de not_active Expired - Lifetime
- 1989-05-16 DE DE68920909T patent/DE68920909T2/de not_active Expired - Fee Related
- 1989-05-31 US US07/359,363 patent/US4956616A/en not_active Expired - Lifetime
- 1989-06-02 JP JP1139402A patent/JPH02111110A/ja active Pending

Also Published As

Publication number	Publication date
JPH02111110A (ja)	1990-04-24
EP0344510B1 (de)	1995-02-01
US4956616A (en)	1990-09-11
DE68920909T2 (de)	1995-10-05
EP0344510A2 (de)	1989-12-06
EP0344510A3 (en)	1990-12-05
IT8820848A0 (it)	1988-06-02
IT1217773B (it)	1990-03-30

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Legal Events

Date	Code	Title	Description
1996-03-07	8364	No opposition during term of opposition
2004-03-18	8339	Ceased/non-payment of the annual fee