ES8100589A1 - Perfeccionamientos en circuitos de control automatico de brillo en sistemas de produccion de imagenes por senal de video - Google Patents

Perfeccionamientos en circuitos de control automatico de brillo en sistemas de produccion de imagenes por senal de video

Info

Publication number
ES8100589A1
ES8100589A1 ES488076A ES488076A ES8100589A1 ES 8100589 A1 ES8100589 A1 ES 8100589A1 ES 488076 A ES488076 A ES 488076A ES 488076 A ES488076 A ES 488076A ES 8100589 A1 ES8100589 A1 ES 8100589A1
Authority
ES
Spain
Prior art keywords
video signal
image reproducing
level
reproducing system
brightness control
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
ES488076A
Other languages
English (en)
Other versions
ES488076A0 (es
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.)
RCA Corp
Original Assignee
RCA 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 RCA Corp filed Critical RCA Corp
Publication of ES488076A0 publication Critical patent/ES488076A0/es
Publication of ES8100589A1 publication Critical patent/ES8100589A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/57—Control of contrast or brightness
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/04—Diagnosis, testing or measuring for television systems or their details for receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Processing Of Color Television Signals (AREA)
  • Picture Signal Circuits (AREA)
  • Television Receiver Circuits (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

CIRCUITOS DE CONTROL AUTOMATICO DE BRILLO EN SISTEMAS DE REPRODUCCION DE IMAGEN POR SEÑAL DE VIDEO DE INTERVALOS PERIODICAMENTE CICLICOS E INTERVALOS DE SUPRESION DEL HAZ ELECTRONICO. CONSTA DE UN COMPARADOR QUE TIENE UNA PRIMERA ENTRADA ACOPLADA A UN VOLTAJE DE REFERENCIA FIJO DERIVADO DEL POTENCIAL DE REFERENCIA DEL VIDEOAMPLIFICADOR Y UNA SEGUNDA ENTRADA ACOPLADA AL CANAL DE LA SEÑAL DE VIDEO. EL COMPARADOR COMPARA EL VOLTAJE DE REFERENCIA Y LA SEÑAL DE VIDEO DURANTE LOS INTERVALOS DE SUSPENSION DEL HAZ ELECTRONICO PARA PROPORCIONAR UNA SEÑAL DE CONTROL DE SALIDA INDICATIVA DE LA DIFERENCIA DE MAGNITUD ENTRE EL VOLTAJE DE REFERENCIA Y EL NIVEL DE SUPRESION DEL HAZ ELECTRONICO DE LA SEÑAL DE VIDEO EN UNA DIRECCION PARA REDUCIR LA DIFERENCIA DEL VOLTAJE ENTRE LA REFERENCIA Y EL NIVEL DE SUPRESION DEL HAZ ELECTRONICO A UN MINIMO.
ES488076A 1979-01-31 1980-01-31 Perfeccionamientos en circuitos de control automatico de brillo en sistemas de produccion de imagenes por senal de video Expired ES8100589A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/008,050 US4203131A (en) 1979-01-31 1979-01-31 Predictable automatic brightness control circuit in a video signal image reproducing system

Publications (2)

Publication Number Publication Date
ES488076A0 ES488076A0 (es) 1980-11-01
ES8100589A1 true ES8100589A1 (es) 1980-11-01

Family

ID=21729575

Family Applications (1)

Application Number Title Priority Date Filing Date
ES488076A Expired ES8100589A1 (es) 1979-01-31 1980-01-31 Perfeccionamientos en circuitos de control automatico de brillo en sistemas de produccion de imagenes por senal de video

Country Status (18)

Country Link
US (1) US4203131A (es)
JP (1) JPS55104180A (es)
KR (1) KR830002170B1 (es)
AU (1) AU533602B2 (es)
BE (1) BE881450A (es)
CA (1) CA1135402A (es)
DD (1) DD157847A5 (es)
DE (1) DE3003536C2 (es)
DK (1) DK39680A (es)
ES (1) ES8100589A1 (es)
FI (1) FI800208A (es)
FR (1) FR2448268B1 (es)
GB (1) GB2041694B (es)
IT (1) IT1129575B (es)
MX (1) MX147999A (es)
NZ (1) NZ192757A (es)
PL (1) PL125453B1 (es)
SE (1) SE8000549L (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6050112B2 (ja) * 1978-11-15 1985-11-06 株式会社日立製作所 色信号出力回路
JPS56104585A (en) * 1980-01-23 1981-08-20 Sony Corp Automatic luminance adjusting device of picture tube
US4394689A (en) * 1981-07-13 1983-07-19 The United States Of America As Represented By The Secretary Of The Navy Programmable CRT brightness control
JPS58202605A (ja) * 1982-05-21 1983-11-25 Hitachi Ltd カスコ−ドアンプ
US4642690A (en) * 1984-08-27 1987-02-10 Rca Corporation Digital video signal processor with analog level control
US4675726A (en) * 1985-08-14 1987-06-23 Zenith Electronics Corporation Drive adjustment control for video output stage
US5390020A (en) * 1992-09-14 1995-02-14 Eastman Kodak Company Video amplifier stabilization for CRT printing
IT1311427B1 (it) * 1999-12-15 2002-03-12 Gd Spa Pacchetto rigido con coperchio incernierato
JP2018119571A (ja) 2017-01-24 2018-08-02 小倉クラッチ株式会社 電磁連結装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL206643A (es) * 1955-04-29
US3502807A (en) * 1967-03-08 1970-03-24 Rca Corp Brightness control circuit
US3588341A (en) * 1969-04-01 1971-06-28 Motorola Inc Automatic brightness control circuit for establishing the black level of signals in a television reciver
US3597540A (en) * 1969-04-01 1971-08-03 Motorola Inc Automatic brightness control responsive to black level of video signal
US3955047A (en) * 1974-04-16 1976-05-04 Rca Corporation D.C. reinsertion in video amplifier
DE2507231B1 (de) * 1975-02-20 1976-05-20 Bosch Gmbh Robert Schaltungsanordnung zur Wiedereinfuehrung des Gleichspannungsanteils in einem Videosignal
US4197557A (en) * 1977-05-05 1980-04-08 Rca Corporation Brightness control circuit employing a closed control loop
US4096518A (en) * 1977-05-05 1978-06-20 Rca Corporation Average beam current limiter
US4143398A (en) * 1978-03-22 1979-03-06 Rca Corporation Automatic brightness control circuit employing a closed control loop stabilized against disruption by large amplitude video signals

Also Published As

Publication number Publication date
PL125453B1 (en) 1983-05-31
PL221637A1 (es) 1980-11-03
GB2041694B (en) 1983-04-13
DE3003536A1 (de) 1980-08-14
GB2041694A (en) 1980-09-10
IT8019315A0 (it) 1980-01-18
MX147999A (es) 1983-02-22
SE8000549L (sv) 1980-08-01
FR2448268A1 (fr) 1980-08-29
FR2448268B1 (fr) 1985-05-31
AU5492180A (en) 1980-08-07
ES488076A0 (es) 1980-11-01
BE881450A (fr) 1980-05-16
JPS55104180A (en) 1980-08-09
AU533602B2 (en) 1983-12-01
US4203131A (en) 1980-05-13
DD157847A5 (de) 1982-12-08
NZ192757A (en) 1983-09-30
KR830002170B1 (ko) 1983-10-17
DE3003536C2 (de) 1985-06-27
FI800208A (fi) 1980-08-01
IT1129575B (it) 1986-06-11
CA1135402A (en) 1982-11-09
DK39680A (da) 1980-08-01
KR830002472A (ko) 1983-05-28

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20001009