FR2674706B1 - DEVICE FOR AUTOMATICALLY ADJUSTING THE LEVEL OF A SIGNAL. - Google Patents

DEVICE FOR AUTOMATICALLY ADJUSTING THE LEVEL OF A SIGNAL.

Info

Publication number
FR2674706B1
FR2674706B1 FR9103644A FR9103644A FR2674706B1 FR 2674706 B1 FR2674706 B1 FR 2674706B1 FR 9103644 A FR9103644 A FR 9103644A FR 9103644 A FR9103644 A FR 9103644A FR 2674706 B1 FR2674706 B1 FR 2674706B1
Authority
FR
France
Prior art keywords
level
signal
automatically adjusting
automatically
adjusting
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
FR9103644A
Other languages
French (fr)
Other versions
FR2674706A1 (en
Inventor
Dominique Bouriot
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.)
Alcatel CIT SA
Original Assignee
Alcatel CIT SA
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 Alcatel CIT SA filed Critical Alcatel CIT SA
Priority to FR9103644A priority Critical patent/FR2674706B1/en
Publication of FR2674706A1 publication Critical patent/FR2674706A1/en
Application granted granted Critical
Publication of FR2674706B1 publication Critical patent/FR2674706B1/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 without distortion of the input signal
    • 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
    • H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
    • H03G3/3015—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable using diodes or transistors
    • 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
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/007—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using FET type devices
    • 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 without distortion of the input signal
    • H03G3/001—Digital control of analog signals
FR9103644A 1991-03-26 1991-03-26 DEVICE FOR AUTOMATICALLY ADJUSTING THE LEVEL OF A SIGNAL. Expired - Fee Related FR2674706B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9103644A FR2674706B1 (en) 1991-03-26 1991-03-26 DEVICE FOR AUTOMATICALLY ADJUSTING THE LEVEL OF A SIGNAL.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9103644A FR2674706B1 (en) 1991-03-26 1991-03-26 DEVICE FOR AUTOMATICALLY ADJUSTING THE LEVEL OF A SIGNAL.

Publications (2)

Publication Number Publication Date
FR2674706A1 FR2674706A1 (en) 1992-10-02
FR2674706B1 true FR2674706B1 (en) 1997-01-03

Family

ID=9411132

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9103644A Expired - Fee Related FR2674706B1 (en) 1991-03-26 1991-03-26 DEVICE FOR AUTOMATICALLY ADJUSTING THE LEVEL OF A SIGNAL.

Country Status (1)

Country Link
FR (1) FR2674706B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5949288A (en) * 1996-07-25 1999-09-07 Endress + Hauser Gmbh + Co. Circuit arrangement with an operational amplifier
ATE175298T1 (en) * 1996-07-25 1999-01-15 Envec Mess Und Regeltechn Gmbh CIRCUIT ARRANGEMENT WITH AN OPERATIONAL AMPLIFIER

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2097619A (en) * 1980-07-31 1982-11-03 Min Mart V Stage converter of electric signals
JPS5937716A (en) * 1982-08-26 1984-03-01 Seiko Instr & Electronics Ltd Automatic gain control circuit
JPH01185008A (en) * 1988-01-19 1989-07-24 Nec Corp Gain variable amplifier

Also Published As

Publication number Publication date
FR2674706A1 (en) 1992-10-02

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Legal Events

Date Code Title Description
ST Notification of lapse