BE883036A - Procede et appareil pour ajuster un gain d'entree - Google Patents

Procede et appareil pour ajuster un gain d'entree

Info

Publication number
BE883036A
BE883036A BE0/200408A BE200408A BE883036A BE 883036 A BE883036 A BE 883036A BE 0/200408 A BE0/200408 A BE 0/200408A BE 200408 A BE200408 A BE 200408A BE 883036 A BE883036 A BE 883036A
Authority
BE
Belgium
Prior art keywords
input gain
adjusting input
adjusting
gain
input
Prior art date
Application number
BE0/200408A
Other languages
English (en)
Original Assignee
E Systems Inc
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 E Systems Inc filed Critical E Systems Inc
Publication of BE883036A publication Critical patent/BE883036A/fr

Links

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
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/3026—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being discontinuously variable, e.g. controlled by switching
    • 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
    • H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (AREA)
  • Noise Elimination (AREA)
BE0/200408A 1979-05-01 1980-04-29 Procede et appareil pour ajuster un gain d'entree BE883036A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/035,004 US4297527A (en) 1979-05-01 1979-05-01 Input gain adjusting apparatus and method

Publications (1)

Publication Number Publication Date
BE883036A true BE883036A (fr) 1980-10-29

Family

ID=21880040

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/200408A BE883036A (fr) 1979-05-01 1980-04-29 Procede et appareil pour ajuster un gain d'entree

Country Status (5)

Country Link
US (1) US4297527A (fr)
JP (1) JPS55147815A (fr)
BE (1) BE883036A (fr)
DE (1) DE3013344A1 (fr)
GB (1) GB2048621B (fr)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439864A (en) * 1980-04-03 1984-03-27 Codex Corporation Modem circuitry
US4394744A (en) * 1981-02-12 1983-07-19 The United States Of America As Represented By The Secretary Of The Navy Real-time amplitude histogram shaper
JPS57138208A (en) * 1981-02-20 1982-08-26 Hitachi Ltd Power detecting circuit and gain control circuit using it
JPS6032400B2 (ja) * 1981-08-07 1985-07-27 リオン株式会社 補聴器
US4514703A (en) * 1982-12-20 1985-04-30 Motrola, Inc. Automatic level control system
DK163699C (da) * 1986-02-11 1992-08-17 Poul Richter Joergensen Fremgangsmaade til automatisk forstaerkningsstyring af et signal samt et kredsloeb til udoevelse af fremgangsmaaden
JPH0520012Y2 (fr) * 1986-04-11 1993-05-26
US4887299A (en) * 1987-11-12 1989-12-12 Nicolet Instrument Corporation Adaptive, programmable signal processing hearing aid
JPH0691394B2 (ja) * 1988-03-11 1994-11-14 パイオニア株式会社 出力レベル制御装置
US5027410A (en) * 1988-11-10 1991-06-25 Wisconsin Alumni Research Foundation Adaptive, programmable signal processing and filtering for hearing aids
DE4009140C2 (de) * 1990-03-21 1997-04-03 Plath Naut Elektron Tech Regeleinrichtung für Funkempfänger
JPH04150106A (ja) * 1990-10-09 1992-05-22 Pioneer Electron Corp 出力レベル制御装置
JP3319608B2 (ja) * 1991-10-18 2002-09-03 ソニー株式会社 電子機器
GB9300901D0 (en) * 1993-01-19 1993-03-10 Rothmans Int Tobacco Tobacco smoke filters
DE4407032A1 (de) * 1994-03-03 1995-09-07 Sel Alcatel Ag Vorrichtung zur Sprachsignalverarbeitung
US5870705A (en) * 1994-10-21 1999-02-09 Microsoft Corporation Method of setting input levels in a voice recognition system
GB9513419D0 (en) * 1995-06-30 1995-09-06 Philips Electronics Uk Ltd Audio signal reproduction apparatus
WO1999029042A1 (fr) * 1997-12-02 1999-06-10 Maxim Integrated Products, Inc. Correction d'erreurs efficace pour numeriseurs pipeline
US6807280B1 (en) * 1998-01-26 2004-10-19 Delphi Technologies, Inc. Audio signal processing circuit for reducing noise in an audio signal
DE10018666A1 (de) 2000-04-14 2001-10-18 Harman Audio Electronic Sys Vorrichtung und Verfahren zum geräuschabhängigen Anpassen eines akustischen Nutzsignals
US20040125962A1 (en) * 2000-04-14 2004-07-01 Markus Christoph Method and apparatus for dynamic sound optimization
EP1580882B1 (fr) * 2004-03-19 2007-01-10 Harman Becker Automotive Systems GmbH Système et procédé d'amélioration audio
EP1833163B1 (fr) * 2004-07-20 2019-12-18 Harman Becker Automotive Systems GmbH Système d'amélioration audio et son procédé
US8170221B2 (en) * 2005-03-21 2012-05-01 Harman Becker Automotive Systems Gmbh Audio enhancement system and method
DE602005015426D1 (de) 2005-05-04 2009-08-27 Harman Becker Automotive Sys System und Verfahren zur Intensivierung von Audiosignalen
US9647620B2 (en) * 2010-01-17 2017-05-09 Mediatek Pte Ltd. Electronic device and integrated circuit comprising a gain control module and method therefor
US9425757B2 (en) 2013-05-15 2016-08-23 Infineon Technologies Ag Apparatus and method for controlling an amplification gain of an amplifier, and a digitizer circuit and microphone assembly
JP6166700B2 (ja) * 2014-08-18 2017-07-19 プレキシオン株式会社 光音響画像化装置
US11005573B2 (en) * 2018-11-20 2021-05-11 Macom Technology Solutions Holdings, Inc. Optic signal receiver with dynamic control
CN111710346B (zh) * 2020-06-18 2021-07-27 腾讯科技（深圳）有限公司 音频处理方法、装置、计算机设备以及存储介质
US12013423B2 (en) 2020-09-30 2024-06-18 Macom Technology Solutions Holdings, Inc. TIA bandwidth testing system and method
US11658630B2 (en) 2020-12-04 2023-05-23 Macom Technology Solutions Holdings, Inc. Single servo loop controlling an automatic gain control and current sourcing mechanism
CN113364418B (zh) * 2021-06-28 2023-03-21 贵州航天电子科技有限公司 一种程控增益放大电路及信号控制方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5154703A (fr) * 1974-11-08 1976-05-14 Oki Electric Ind Co Ltd

Also Published As

Publication number Publication date
GB2048621B (en) 1984-01-11
US4297527A (en) 1981-10-27
JPS55147815A (en) 1980-11-18
JPS6210042B2 (fr) 1987-03-04
DE3013344A1 (de) 1980-11-13
GB2048621A (en) 1980-12-10

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: E-SYSTEMS INC.

Effective date: 19940430