[go: up one dir, main page]

FR2579842B1 - AMBIENT NOISE COMPENSATION DEVICE IN AN AUDIO AMPLIFIER - Google Patents

AMBIENT NOISE COMPENSATION DEVICE IN AN AUDIO AMPLIFIER

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
French (fr)
Other versions
FR2579842A1 (en
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/en
Publication of FR2579842A1 publication Critical patent/FR2579842A1/en
Application granted granted Critical
Publication of FR2579842B1 publication Critical patent/FR2579842B1/en
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 AMBIENT NOISE COMPENSATION DEVICE IN AN AUDIO AMPLIFIER Expired - Fee Related FR2579842B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8504584A FR2579842B1 (en) 1985-03-27 1985-03-27 AMBIENT NOISE COMPENSATION DEVICE IN AN AUDIO AMPLIFIER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8504584A FR2579842B1 (en) 1985-03-27 1985-03-27 AMBIENT NOISE COMPENSATION DEVICE IN AN AUDIO AMPLIFIER

Publications (2)

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

Family

ID=9317645

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8504584A Expired - Fee Related FR2579842B1 (en) 1985-03-27 1985-03-27 AMBIENT NOISE COMPENSATION DEVICE IN AN AUDIO AMPLIFIER

Country Status (1)

Country Link
FR (1) FR2579842B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988001453A1 (en) * 1986-08-13 1988-02-25 Aranda Applied Research & Tech Adaptive gain control amplifier
DE3830423A1 (en) * 1987-11-25 1989-06-08 Pioneer Electronic Corp MOBILE DEVICE WITH AUTOMATIC VOLUME CONTROL

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 (en) * 1981-09-28 1983-04-01 Carpentier Claude Ambient noise responsive volume control e.g. for car audio - uses discriminator to rectify microphone output for comparison with gain controlled signal to adjust circuit gain

Also Published As

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

Similar Documents

Publication Publication Date Title
KR860009486A (en) Electronic device and lead frame used therein
ATA622278A (en) RECORDING AND PLAYBACK DEVICE
KR870700548A (en) Combiner mounting and loading device
DE3750173D1 (en) Recording and playback device.
NL192472B (en) Tape recording and / or display device.
BR8204462A (en) VIBRATION AND NOISE FILTRATION DEVICE
KR870015363U (en) Record and playback device
ATA393582A (en) RECORDING AND / OR PLAYBACK DEVICE
FR2603414B1 (en) READING AMPLIFIER
FR2515137B1 (en) SAILING DEVICE AND STORAGE DEVICE
KR840000788U (en) Recording and playback device
BE891953A (en) SPEAKER DEVICE
KR880003602A (en) Amplifier device
NL7902990A (en) TAPE RECORDING AND / OR DISPLAY DEVICE.
NO865225D0 (en) DEVICE FOR AMPLIFYING AND SAMPLING OF MULTIPLE-SELECTED SIGNALS.
FR2579842B1 (en) AMBIENT NOISE COMPENSATION DEVICE IN AN AUDIO AMPLIFIER
KR870002821U (en) Record and playback device
KR900008489A (en) Record and playback device
NO812531L (en) DEVICE FOR AMPLIFYING AND SAMPLING MULTIPLE-Plex signals
DE3784970D1 (en) RECORDING AND PLAYBACK DEVICE.
NL7902696A (en) VIDEO SIGNAL RECORDING AND / OR DISPLAY DEVICE.
IT1102616B (en) SEAT FOR SCREWS SUITABLE FOR INSTALLATION ON CHIPBOARD PANELS AND DEVICE FOR ITS INSERTION
MX149771A (en) IMPROVEMENTS IN AMPLIFIER DEVICE WITH VERY LOW DISTORTION
BR8800315A (en) THIN FILM TRANSISTOR AND SOLID STATE ELECTRONIC DEVICE
DK591888D0 (en) IDENTIFICABLE RECORDING AND TRANSPORTING DEVICE FOR SUBJECTS

Legal Events

Date Code Title Description
ST Notification of lapse