FR2228321A1 - - Google Patents

Info

Publication number
FR2228321A1
FR2228321A1 FR7343021A FR7343021A FR2228321A1 FR 2228321 A1 FR2228321 A1 FR 2228321A1 FR 7343021 A FR7343021 A FR 7343021A FR 7343021 A FR7343021 A FR 7343021A FR 2228321 A1 FR2228321 A1 FR 2228321A1
Authority
FR
France
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.)
Withdrawn
Application number
FR7343021A
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.)
Microsystems International Ltd
Original Assignee
Microsystems International Ltd
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 Microsystems International Ltd filed Critical Microsystems International Ltd
Publication of FR2228321A1 publication Critical patent/FR2228321A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
    • H04Q1/4465—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency the same frequency being used for all signalling information, e.g. A.C. nr.9 system
    • 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
    • H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier
    • H03G1/0023—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier in emitter-coupled or cascode amplifiers
    • 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
FR7343021A 1973-05-02 1973-12-03 Withdrawn FR2228321A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA170,249A CA969689A (en) 1973-05-02 1973-05-02 Audio frequency automatic gain control circuit

Publications (1)

Publication Number Publication Date
FR2228321A1 true FR2228321A1 (fr) 1974-11-29

Family

ID=4096587

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7343021A Withdrawn FR2228321A1 (fr) 1973-05-02 1973-12-03

Country Status (8)

Country Link
US (1) US3824345A (fr)
JP (1) JPS5011104A (fr)
AU (1) AU6515474A (fr)
BE (1) BE808380A (fr)
CA (1) CA969689A (fr)
DE (1) DE2405757A1 (fr)
FR (1) FR2228321A1 (fr)
NL (1) NL7405922A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473812A1 (fr) * 1980-01-15 1981-07-17 Rca Corp Circuit permettant de commander de facon symetrique le gain d'un amplificateur differentiel

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54174930U (fr) * 1978-05-30 1979-12-10
US4198603A (en) * 1978-09-22 1980-04-15 General Motors Corporation Radio receiver audio attenuator
JPS5782617A (en) * 1980-11-11 1982-05-24 Toshiba Corp Safety device for combustor
WO1998049782A2 (fr) * 1997-04-29 1998-11-05 Koninklijke Philips Electronics N.V. Dispositif de telecommunication par fil et circuit d'alimentation
US6757395B1 (en) 2000-01-12 2004-06-29 Sonic Innovations, Inc. Noise reduction apparatus and method
ES2381512B1 (es) * 2009-06-04 2013-05-07 Coprecitec, S.L Aparato domestico a gas con control de llama

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3162801A (en) * 1961-04-20 1964-12-22 Sperry Rand Corp Automatic gain control system using signal suppression
US3579114A (en) * 1967-08-21 1971-05-18 Hitachi Ltd Automatic gain control system radio receivers and the like
US3566276A (en) * 1969-05-15 1971-02-23 Itt Slow rate agc circuit
JPS527304B1 (fr) * 1969-08-29 1977-03-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473812A1 (fr) * 1980-01-15 1981-07-17 Rca Corp Circuit permettant de commander de facon symetrique le gain d'un amplificateur differentiel

Also Published As

Publication number Publication date
BE808380A (fr) 1974-03-29
NL7405922A (fr) 1974-11-05
US3824345A (en) 1974-07-16
AU6515474A (en) 1975-08-07
JPS5011104A (fr) 1975-02-05
DE2405757A1 (de) 1974-11-21
CA969689A (en) 1975-06-17

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Legal Events

Date Code Title Description
ST Notification of lapse