FR2425766B1 - Amplificateur de signaux video composites a commande automatique de gain - Google Patents

Amplificateur de signaux video composites a commande automatique de gain

Info

Publication number
FR2425766B1
FR2425766B1 FR7912119A FR7912119A FR2425766B1 FR 2425766 B1 FR2425766 B1 FR 2425766B1 FR 7912119 A FR7912119 A FR 7912119A FR 7912119 A FR7912119 A FR 7912119A FR 2425766 B1 FR2425766 B1 FR 2425766B1
Authority
FR
France
Prior art keywords
video signal
gain control
automatic gain
signal amplifier
composite video
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
Application number
FR7912119A
Other languages
English (en)
Other versions
FR2425766A1 (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.)
Data 100 Corp
Original Assignee
Data 100 Corp
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 Data 100 Corp filed Critical Data 100 Corp
Publication of FR2425766A1 publication Critical patent/FR2425766A1/fr
Application granted granted Critical
Publication of FR2425766B1 publication Critical patent/FR2425766B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H03G5/18—Automatic control in untuned amplifiers
    • H03G5/20—Automatic control in untuned amplifiers having discharge tubes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H04N7/102—Circuits therefor, e.g. noise reducers, equalisers, amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Picture Signal Circuits (AREA)
  • Amplifiers (AREA)
FR7912119A 1978-05-12 1979-05-11 Amplificateur de signaux video composites a commande automatique de gain Expired FR2425766B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/905,185 US4220931A (en) 1978-05-12 1978-05-12 Composite video automatic gain control amplifier

Publications (2)

Publication Number Publication Date
FR2425766A1 FR2425766A1 (fr) 1979-12-07
FR2425766B1 true FR2425766B1 (fr) 1987-11-20

Family

ID=25420396

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7912119A Expired FR2425766B1 (fr) 1978-05-12 1979-05-11 Amplificateur de signaux video composites a commande automatique de gain

Country Status (7)

Country Link
US (1) US4220931A (fr)
JP (1) JPS5513597A (fr)
CA (1) CA1141831A (fr)
DE (1) DE2917489A1 (fr)
FR (1) FR2425766B1 (fr)
GB (1) GB2021360B (fr)
NL (1) NL7903740A (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2950584C2 (de) * 1979-12-15 1984-07-12 Robert Bosch Gmbh, 7000 Stuttgart Schaltungsanordnung mit steuerbarem Widerstand
US4323923A (en) * 1980-10-06 1982-04-06 Zenith Radio Corporation AGC-Clamped video amplifier
US4525684A (en) * 1984-06-25 1985-06-25 Rockwell International Corporation Auto-equalizer apparatus
JPH0614268Y2 (ja) * 1984-07-10 1994-04-13 パイオニア株式会社 特性可変増幅回路
US4984079A (en) * 1989-07-26 1991-01-08 Hughes Aircraft Company Video preamplifier circuit
FR2693609B1 (fr) * 1992-07-07 1994-08-19 Alcatel Reseaux Entreprise Procédé de correction des pertes affectant un signal vidéo transmis par une liaison de type paire de fils et interface dotée d'un agencement de correction correspondant.
US8611844B2 (en) * 2011-02-28 2013-12-17 Silicon Laboratories Inc. Low noise amplifier and method of input impedance control for terrestrial and cable modes

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB721941A (en) * 1951-01-12 1955-01-19 Gen Electric Co Ltd Improvements in or relating to electrical communication systems
US2929062A (en) * 1955-08-29 1960-03-15 Citizens Bank Of Maryland Automatic frequency-compensated gain control for multi-channel television distribution lines
DE2013365B2 (de) * 1970-03-20 1972-08-03 Robert Bosch Elektronik Gmbh, 1000 Berlin Und 7000 Stuttgart Mehrstufiger transistorverstaerker fuer schwerhoerigengeraete
DE2047755B2 (de) * 1970-09-29 1971-07-08 Robert Bosch Elektronik Gmbh, 1000 Berlin Und 7000 Stuttgart Einrichtung zur selbsstaetigen verstaerkungsregelung fuer einen verstaerker, insbesondere transistor verstaerker, in hochfrequenzspannungen fuehrenden kabelnetzen
GB1328940A (en) * 1971-08-23 1973-09-05 Hewlett Packard Co Amplifier circuits
JPS5226851B2 (fr) * 1972-08-30 1977-07-16
DE2419279C3 (de) * 1974-04-22 1982-03-04 Standard Elektrik Lorenz Ag, 7000 Stuttgart Fernsehsystem
DE2451387A1 (de) * 1974-10-29 1976-05-06 Standard Elektrik Lorenz Ag Anordnung zur pilotgesteuerten pegelregelung von uebertragungsstrecken
US3944943A (en) * 1974-11-29 1976-03-16 Gte Sylvania Incorporated Broadband amplifier
US4078157A (en) * 1976-10-18 1978-03-07 Gte Automatic Electric Laboratories Incorporated Method and apparatus for regenerating a modified duobinary signal

Also Published As

Publication number Publication date
CA1141831A (fr) 1983-02-22
GB2021360A (en) 1979-11-28
DE2917489C2 (fr) 1988-10-20
FR2425766A1 (fr) 1979-12-07
DE2917489A1 (de) 1979-11-15
US4220931A (en) 1980-09-02
GB2021360B (en) 1982-10-20
JPS5513597A (en) 1980-01-30
NL7903740A (nl) 1979-11-14

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Legal Events

Date Code Title Description
ST Notification of lapse