ES8106980A1 - Perfeccionamientos en aparatos limitadores automaticos del haz electronico de un cinescopio con modos de control de se-cuenciales. - Google Patents

Perfeccionamientos en aparatos limitadores automaticos del haz electronico de un cinescopio con modos de control de se-cuenciales.

Info

Publication number
ES8106980A1
ES8106980A1 ES497702A ES497702A ES8106980A1 ES 8106980 A1 ES8106980 A1 ES 8106980A1 ES 497702 A ES497702 A ES 497702A ES 497702 A ES497702 A ES 497702A ES 8106980 A1 ES8106980 A1 ES 8106980A1
Authority
ES
Spain
Prior art keywords
transistor
range
beam currents
beam current
level
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
ES497702A
Other languages
English (en)
Other versions
ES497702A0 (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 ES8106980A1 publication Critical patent/ES8106980A1/es
Publication of ES497702A0 publication Critical patent/ES497702A0/es
Granted 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
    • H04N5/59—Control of contrast or brightness in dependence upon beam current of cathode ray tube

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

PROCEDIMIENTO PARA PROPORCIONAR UNA TRANSICION SUAVE Y CONTINUA ENTRE LOS MODOS DE CONTROL EN EL FUNCIONAMIENTO DE UN LIMITADOR AUTOMATICO DEL HAZ ELECTRONICO DE UN CINESCOPIO. DEBIDO A UNA RED DE CONTROL (60) SE PRESENTA UNA CONDUCCION DE CORRIENTE VARIABLE; UNA PRIMERA SEÑAL DE CONTROL DERIVADA DE LA SALIDA DE LA RED DE CONTROL SE ACOPLA AL CANAL DE VIDEO PARA MODIFICAR UNO DE LOS COMPONENTES DE AMPLITUD DE PICO Y DE CORRIENTE CONTINUA DE LA SEÑAL DE VIDEO EN UNA DIRECCION PARA LIMITAR LAS CORRIENTES EXCESIVAS DEL HAZ MAS ALLA DEL NIVEL UMBRAL. UNA SEGUNDA SEÑAL DE CONTROL, A LA SALIDA DEL COMPARADOR (55), MODIFICA LA COMPONENTE DE LA CORRIENTE CONTINUA PARA LA SEÑAL DE VIDEO SOBRE EL SEGUNDO Y TERCER MARGENES DE CORRIENTES EXCESIVAS DEL HAZ. UNA RED DE CONDUCCION UMBRAL ACOPLA LAS VARIACIONES DE CONDUCCION DE LA RED DE CONTROL A LA ENTRADA DEL COMPARADOR (55).
ES497702A 1979-12-14 1980-12-12 Perfeccionamientos en aparatos limitadores automaticos del haz electronico de un cinescopio con modos de control de se-cuenciales. Granted ES497702A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/103,445 US4253110A (en) 1979-12-14 1979-12-14 Automatic kinescope beam current limiter with sequential control modes

Publications (2)

Publication Number Publication Date
ES8106980A1 true ES8106980A1 (es) 1981-09-16
ES497702A0 ES497702A0 (es) 1981-09-16

Family

ID=22295217

Family Applications (1)

Application Number Title Priority Date Filing Date
ES497702A Granted ES497702A0 (es) 1979-12-14 1980-12-12 Perfeccionamientos en aparatos limitadores automaticos del haz electronico de un cinescopio con modos de control de se-cuenciales.

Country Status (20)

Country Link
US (1) US4253110A (es)
JP (1) JPS56125169A (es)
AT (1) AT387481B (es)
AU (1) AU531829B2 (es)
BE (1) BE886643A (es)
CA (1) CA1156375A (es)
DD (1) DD156661A5 (es)
DE (1) DE3046902C2 (es)
ES (1) ES497702A0 (es)
FI (1) FI71647C (es)
FR (1) FR2472323B1 (es)
GB (1) GB2068198B (es)
HK (1) HK25287A (es)
IT (1) IT1134646B (es)
MY (1) MY8500738A (es)
NZ (1) NZ195819A (es)
PL (1) PL134436B1 (es)
PT (1) PT72112B (es)
SE (1) SE448046B (es)
ZA (1) ZA807737B (es)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295166A (en) * 1980-02-05 1981-10-13 Rca Corporation Failure compensated automatic kinescope beam current limiter
US4376288A (en) * 1981-08-27 1983-03-08 Rca Corporation Signal gain control with DC compensation
US4451849A (en) * 1982-06-23 1984-05-29 Rca Corporation Plural operating mode ambient light responsive television picture control
JPS5986974A (ja) * 1982-11-11 1984-05-19 Sharp Corp 自動輝度制限回路
US4516152A (en) * 1983-05-23 1985-05-07 Rca Corporation Video signal processor with automatic kinescope white balance and beam current limiter control systems
JPS6043981A (ja) * 1983-08-22 1985-03-08 Sony Corp ビ−ム電流制限回路
US4549218A (en) * 1983-09-30 1985-10-22 Rca Corporation On-screen display
US4549217A (en) * 1983-09-30 1985-10-22 Rca Corporation Automatic contrast reduction circuit for a teletext or monitor operation
US4599643A (en) * 1983-12-29 1986-07-08 Rca Corporation Apparatus responsive to plural color video signals for amplitude limiting the video signals to assist beam current limiting
US4521811A (en) * 1984-05-02 1985-06-04 Rca Corporation Beam current limiting arrangement for a digital television system
JPS6199477A (ja) * 1984-10-19 1986-05-17 Sony Corp 放電保護回路
US4654717A (en) * 1985-05-20 1987-03-31 Rca Corporation Cathode-ray tube arc-over protection for digital data in television display apparatus
GB8521019D0 (en) * 1985-08-22 1986-10-01 Rank Pullin Controls Ltd Imaging apparatus
US4689668A (en) * 1986-07-14 1987-08-25 Rca Corporation Auxiliary kinescope beam current limiter with plural cascaded low pass filter and peak detector stages
JPS63227285A (ja) * 1987-03-17 1988-09-21 Toshiba Corp 映像信号制御装置
KR0136382B1 (en) * 1988-08-11 1998-04-27 Sanyo Electric Co Circuitry for preventing doming phenomenon in a television and the method thereof
US5099330A (en) * 1988-10-28 1992-03-24 Casio Computer Co., Ltd. Contrast control based on mean and deviation values
FR2640839B1 (fr) * 1988-12-20 1991-03-15 Portenseigne Radiotechnique Appareil de reproduction d'image video muni d'un reglage de contraste, et procede de reglage du contraste d'un tel appareil de reproduction
US4947253A (en) * 1989-04-18 1990-08-07 Rca Licensing Corporation Brightness modulator for closed loop compensation of black level
US5134490A (en) * 1989-04-18 1992-07-28 Thomson Consumer Electronics, Inc. Beam current limiter with brightness control threshold extension
US5021885A (en) * 1989-07-07 1991-06-04 Samsung Electronics Co., Ltd. Automatic brightness limiter
FR2657209B1 (fr) * 1990-01-16 1992-04-10 Europ Rech Electr Lab Procede et dispositif de limitation de courant d'un tube cathodique.
US5079623A (en) * 1990-04-30 1992-01-07 Thomson Consumer Electronics, Inc. Signal clamp for a dual function input terminal of a "one-chip" television signal processing IC
KR930009100B1 (ko) * 1991-01-17 1993-09-22 삼성전자 주식회사 광대역 음극선관 구동회로
US5200829A (en) * 1991-12-16 1993-04-06 Thomson Consumer Electronics, Inc. Contrast beam current limiting arrangement with secondary brightness beam current limiting provisions
GB2273425A (en) * 1992-12-10 1994-06-15 Ibm Cathode ray tube display with improved beam current control.
JP3267061B2 (ja) * 1994-08-29 2002-03-18 松下電器産業株式会社 Ａｂｌ回路とａｃｌ回路と輝度・色差信号処理回路とテレビジョン受像機
US6806908B2 (en) * 2001-08-10 2004-10-19 Koninklijke Philips Electronics N.V. Cathode current limiting circuit for projection television display systems
US6545717B1 (en) * 2001-09-26 2003-04-08 Koninklijke Philips Electronics N.V. Display system having selectable automatic CRT cutoff stabilization or AKB with CRT feedback current simulation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2021037C3 (de) * 1970-04-24 1974-02-21 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zur Strahlstrombegrenzung in Fernsehbildröhren
JPS5648176B2 (es) * 1972-08-18 1981-11-13
US4067048A (en) * 1976-08-19 1978-01-03 Rca Corporation Automatic beam current limiter
US4126884A (en) * 1977-05-05 1978-11-21 Rca Corporation Kinescope beam current limiter employing automatic sequential control of image contrast and brightness to limit beam current
US4197557A (en) * 1977-05-05 1980-04-08 Rca Corporation Brightness control circuit employing a closed control loop
US4137552A (en) * 1977-05-05 1979-01-30 Rca Corporation Automatic beam current limiter with independently determined threshold level and dynamic control range
US4096518A (en) * 1977-05-05 1978-06-20 Rca Corporation Average beam current limiter
JPS6320221Y2 (es) * 1979-09-20 1988-06-06

Also Published As

Publication number Publication date
CA1156375A (en) 1983-11-01
DE3046902C2 (de) 1983-11-10
SE448046B (sv) 1987-01-12
NZ195819A (en) 1984-11-09
DE3046902A1 (de) 1981-09-03
MY8500738A (en) 1985-12-31
DD156661A5 (de) 1982-09-08
AU531829B2 (en) 1983-09-08
FI71647B (fi) 1986-10-10
JPS56125169A (en) 1981-10-01
ZA807737B (en) 1982-06-30
AU6530480A (en) 1981-06-18
FI71647C (fi) 1987-01-19
AT387481B (de) 1989-01-25
IT8026527A0 (it) 1980-12-09
ES497702A0 (es) 1981-09-16
FI803788L (fi) 1981-06-15
US4253110A (en) 1981-02-24
HK25287A (en) 1987-04-03
GB2068198B (en) 1983-06-29
JPH0365073B2 (es) 1991-10-09
IT1134646B (it) 1986-08-13
FR2472323A1 (fr) 1981-06-26
GB2068198A (en) 1981-08-05
PT72112B (en) 1982-01-05
PL134436B1 (en) 1985-08-31
FR2472323B1 (fr) 1985-12-20
PT72112A (en) 1980-12-01
ATA610280A (de) 1988-06-15
BE886643A (fr) 1981-04-01
SE8008551L (sv) 1981-06-15
PL228451A1 (es) 1981-08-21

Similar Documents

Publication Publication Date Title
ES8106980A1 (es) Perfeccionamientos en aparatos limitadores automaticos del haz electronico de un cinescopio con modos de control de se-cuenciales.
KR920009077B1 (ko) 다이나믹 신호 코어링 회로
KR910005675A (ko) 텔레비젼 시스템
GB1400427A (en) Video signal processing apparatus
US4044375A (en) Brightness control apparatus
ES8503193A1 (es) Perfeccionamientos introducidos en un aparato de una instalacion de tratamiento de senales de video
US2906817A (en) Television receiver signal processing circuits
ES469494A1 (es) Perfeccionamientos en aparatos para limitar automaticamente la corriente del haz electrico en un tubo catodico.
GB997584A (en) Method of effecting a continuous contrast control in television receivers
MY106114A (en) Video display apparatus with kinescope spot burn protec tion circuit.
SE8501930L (sv) Automatisk bildrorstralstrombegrensare
US4106054A (en) Automatic chroma level system
ES472139A1 (es) Perfeccionamientos en circuitos de fijacion de la senal de nivel de supresion del haz electronico para receptores de television
ES8608754A1 (es) Perfeccionamientos introducidos en una instalacion de trata-miento de senal de video
US4249208A (en) Gamma correction circuit for a video signal and television camera suitable therefor
US4234892A (en) AGC Circuit responsive to intermediate gray level in video signal
US2797259A (en) Television receiver noise suppression
US3560645A (en) Television camera gain control circuit with compressed wide contrast range response
ES8204901A1 (es) Perfeccionamientos introducidos en un receptor de television
GB991761A (en) Improvements in and relating to colour television apparatus
US4040090A (en) Bias gate for noise suppression circuit
GB1458580A (en) Video stripper spring-force applying device
US3306976A (en) Receiver system comprising a transistorized agc circuit
KR840004644A (ko) 비데오 신호 피킹장치
US3920891A (en) Peak detector and sample and hold circuit