DE69414741D1 - Tonfrequenzverstärkeranordnung - Google Patents

Tonfrequenzverstärkeranordnung

Info

Publication number
DE69414741D1
DE69414741D1 DE69414741T DE69414741T DE69414741D1 DE 69414741 D1 DE69414741 D1 DE 69414741D1 DE 69414741 T DE69414741 T DE 69414741T DE 69414741 T DE69414741 T DE 69414741T DE 69414741 D1 DE69414741 D1 DE 69414741D1
Authority
DE
Germany
Prior art keywords
audio frequency
frequency amplifier
amplifier arrangement
arrangement
audio
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.)
Expired - Fee Related
Application number
DE69414741T
Other languages
English (en)
Other versions
DE69414741T2 (de
Inventor
Derk Jan Chris Wassink
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Application granted granted Critical
Publication of DE69414741D1 publication Critical patent/DE69414741D1/de
Publication of DE69414741T2 publication Critical patent/DE69414741T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/001—Digital control of analog signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
DE69414741T 1993-03-19 1994-03-14 Tonfrequenzverstärkeranordnung Expired - Fee Related DE69414741T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93200806 1993-03-19

Publications (2)

Publication Number Publication Date
DE69414741D1 true DE69414741D1 (de) 1999-01-07
DE69414741T2 DE69414741T2 (de) 1999-06-10

Family

ID=8213711

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69414741T Expired - Fee Related DE69414741T2 (de) 1993-03-19 1994-03-14 Tonfrequenzverstärkeranordnung

Country Status (4)

Country Link
US (1) US5633940A (de)
EP (1) EP0616425B1 (de)
JP (1) JP3471070B2 (de)
DE (1) DE69414741T2 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9513419D0 (en) * 1995-06-30 1995-09-06 Philips Electronics Uk Ltd Audio signal reproduction apparatus
US6577737B1 (en) * 2000-02-17 2003-06-10 Visteon Global Technologies, Inc. Method of detecting a DC offset in an automotive audio system
US7606378B2 (en) * 2001-04-11 2009-10-20 Chrysler Group Llc Radio distortion processing
US20040247136A1 (en) * 2003-06-03 2004-12-09 Wallace Henry B. True RMS audio power meter
US7579958B2 (en) * 2003-06-03 2009-08-25 Wallace Henry B Audio power meter
TWI327417B (en) * 2004-07-09 2010-07-11 Hon Hai Prec Ind Co Ltd System and method for controlling volume
DE102005045021A1 (de) * 2005-09-21 2007-03-22 Robert Bosch Gmbh Audioanlage mit vermindertem Klirrfaktor und Verfahren zur Verringerung des Klirrfaktors einer Audioanlage
US8692809B2 (en) * 2006-07-06 2014-04-08 Elo Touch Solutions, Inc. Auto-gain switching module for acoustic touch systems
JP4932369B2 (ja) * 2006-07-27 2012-05-16 ローム株式会社 音声信号増幅回路およびそれを用いたオーディオ装置ならびにボリウム切換方法
EA014210B1 (ru) * 2006-10-25 2010-10-29 Сенситив Обджект Устройство автоматической регулировки усиления, система, включающая в себя такое устройство, и способ автоматической регулировки усиления
TWM327610U (en) * 2007-07-13 2008-02-21 Princeton Technology Corp Audio control apparatus
CN101350604B (zh) * 2007-07-19 2012-07-04 鸿富锦精密工业（深圳）有限公司 自动切换音量调节模式的装置及方法
FR2943865A1 (fr) * 2009-03-31 2010-10-01 Stmicroelectronics Grenoble 2 Procede de mesure du taux de saturation d'un amplificateur audio.
US9253584B2 (en) 2009-12-31 2016-02-02 Nokia Technologies Oy Monitoring and correcting apparatus for mounted transducers and method thereof
US9386657B2 (en) 2012-03-15 2016-07-05 Universal Display Corporation Organic Electroluminescent materials and devices
US10218312B2 (en) 2016-02-29 2019-02-26 Qualcomm Incorporated Dynamic volume management in audio amplifiers
US10256777B2 (en) 2016-02-29 2019-04-09 Qualcomm Incorporated Audio amplifiers
WO2020159344A1 (ru) * 2019-01-29 2020-08-06 Галимжан ГАБДРЕШОВ Тифлоаппарат для ориентации сезуалов в пространстве

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2827240B2 (ja) * 1989-01-06 1998-11-25 三菱電機株式会社 ゲイン調節器
US4912424A (en) * 1989-06-12 1990-03-27 Ford Motor Company Audio amplifier with voltage limiting
EP0507964B1 (de) * 1990-10-31 1998-09-09 Shintom Co., Ltd Elektronische lautstärkeregelung
BE1003094A3 (fr) * 1990-11-19 1991-11-19 Staar Sa Perfectionnements aux commandes d'appareils audio/video pour vehicules.
US5255324A (en) * 1990-12-26 1993-10-19 Ford Motor Company Digitally controlled audio amplifier with voltage limiting

Also Published As

Publication number Publication date
JP3471070B2 (ja) 2003-11-25
EP0616425A1 (de) 1994-09-21
EP0616425B1 (de) 1998-11-25
JPH077352A (ja) 1995-01-10
DE69414741T2 (de) 1999-06-10
US5633940A (en) 1997-05-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee