FR2579842B1 - Dispositif de compensation du bruit ambiant dans un amplificateur audio - Google Patents

Dispositif de compensation du bruit ambiant dans un amplificateur audio

Info

Publication number
FR2579842B1
FR2579842B1 FR8504584A FR8504584A FR2579842B1 FR 2579842 B1 FR2579842 B1 FR 2579842B1 FR 8504584 A FR8504584 A FR 8504584A FR 8504584 A FR8504584 A FR 8504584A FR 2579842 B1 FR2579842 B1 FR 2579842B1
Authority
FR
France
Prior art keywords
audio amplifier
compensation device
ambient noise
noise compensation
ambient
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
FR8504584A
Other languages
English (en)
Other versions
FR2579842A1 (fr
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR8504584A priority Critical patent/FR2579842B1/fr
Publication of FR2579842A1 publication Critical patent/FR2579842A1/fr
Application granted granted Critical
Publication of FR2579842B1 publication Critical patent/FR2579842B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
FR8504584A 1985-03-27 1985-03-27 Dispositif de compensation du bruit ambiant dans un amplificateur audio Expired - Fee Related FR2579842B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8504584A FR2579842B1 (fr) 1985-03-27 1985-03-27 Dispositif de compensation du bruit ambiant dans un amplificateur audio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8504584A FR2579842B1 (fr) 1985-03-27 1985-03-27 Dispositif de compensation du bruit ambiant dans un amplificateur audio

Publications (2)

Publication Number Publication Date
FR2579842A1 FR2579842A1 (fr) 1986-10-03
FR2579842B1 true FR2579842B1 (fr) 1995-03-03

Family

ID=9317645

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8504584A Expired - Fee Related FR2579842B1 (fr) 1985-03-27 1985-03-27 Dispositif de compensation du bruit ambiant dans un amplificateur audio

Country Status (1)

Country Link
FR (1) FR2579842B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01500952A (ja) * 1986-08-13 1989-03-30 アランダ・オーデイオ・アプリケーションズ・ピー・テイ・ワイ・リミテッド 適応利得制御増幅器
DE3830423A1 (de) * 1987-11-25 1989-06-08 Pioneer Electronic Corp Mobiles geraet mit automatischer lautstaerkeregelung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3497622A (en) * 1966-10-21 1970-02-24 Zenith Radio Corp Automatic gain control
US3995224A (en) * 1975-04-30 1976-11-30 Rca Corporation Fast automatic gain control circuit with adjustable range
US4207527A (en) * 1978-04-05 1980-06-10 Rca Corporation Pre-processing apparatus for FM stereo overshoot elimination
GB2029141A (en) * 1978-08-26 1980-03-12 Viva Co Gain control arrangements
FR2513839A1 (fr) * 1981-09-28 1983-04-01 Carpentier Claude Perfectionnement aux dispositifs permettant l'ajustement du niveau des sources sonores utiles dans les milieux a bruyance variable

Also Published As

Publication number Publication date
FR2579842A1 (fr) 1986-10-03

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Legal Events

Date Code Title Description
ST Notification of lapse