MX9606439A - Sistema de despliegue de video con suministro de rejilla de pantalla que responde a la polarizacion automatica del cinescopio (akb). - Google Patents

Sistema de despliegue de video con suministro de rejilla de pantalla que responde a la polarizacion automatica del cinescopio (akb).

Info

Publication number
MX9606439A
MX9606439A MX9606439A MX9606439A MX9606439A MX 9606439 A MX9606439 A MX 9606439A MX 9606439 A MX9606439 A MX 9606439A MX 9606439 A MX9606439 A MX 9606439A MX 9606439 A MX9606439 A MX 9606439A
Authority
MX
Mexico
Prior art keywords
screen grid
black level
akb
kinescope
beam current
Prior art date
Application number
MX9606439A
Other languages
English (en)
Inventor
Dal Frank Griepentrog
Original Assignee
Thomson Consumer Electronics
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 Thomson Consumer Electronics filed Critical Thomson Consumer Electronics
Publication of MX9606439A publication Critical patent/MX9606439A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/72—Circuits for processing colour signals for reinsertion of DC and slowly varying components of colour signals

Abstract

Las señales de video que se van a desplegar visualmente se aplican vía un amplificador controlador de video (50) al electrodo de cátodo (32, 34, 36) de un cinescopio (30). Un sensor de la corriente del haz (56) también acoplado al electrodo de cátodo (32, 34, 36), proporciona una señal indicadora de la corriente del haz (56). Un regulador de polarizacion automática del cinescopio AKB (60), que responde a la señal indicadora de la corriente del haz (56), suministra una señal de correccion del nivel de negro (Ia) al amplificador controlador (50) para regular el nivel de negro de las imágenes desplegadas por el cinescopio (30). Se proporciona un sistema de suministro de rejilla de pantalla (70, 90) para controlar el voltaje G-2 (rejilla de pantalla) del cinescopio (30) como una funcion determinada previamente de la señal de correccion del nivel de negro (Ia) formado, mediante esto con el regulador de polarizacion automática del cinescopio (60) un ciclo de retroalimentacion dual para proporcionar la regulacion del nivel de negro mediante tanto el amplificador controlador (50) como la rejilla de pantalla (G2), maximizando o extendiendo, mediante esto el rango total del control del nivel de negro. En consecuencia, se puede eliminar completamente, si se desea, el potenciometro de control de la pantalla de alto voltaje (97) normalmente requerido para fijar la polarizacion de la rejilla de pantalla, o, en aplicacion donde se retiene, no se requieren ajustes posteriores a un ajuste inicial.
MX9606439A 1994-06-17 1995-05-30 Sistema de despliegue de video con suministro de rejilla de pantalla que responde a la polarizacion automatica del cinescopio (akb). MX9606439A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US26167994A 1994-06-17 1994-06-17
PCT/US1995/006862 WO1995035629A1 (en) 1994-06-17 1995-05-30 Video display system with akb responsive screen grid supply

Publications (1)

Publication Number Publication Date
MX9606439A true MX9606439A (es) 1997-12-31

Family

ID=22994377

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9606439A MX9606439A (es) 1994-06-17 1995-05-30 Sistema de despliegue de video con suministro de rejilla de pantalla que responde a la polarizacion automatica del cinescopio (akb).

Country Status (12)

Country Link
US (1) US5894327A (es)
EP (1) EP0769235B1 (es)
JP (1) JP3955318B2 (es)
KR (1) KR100401399B1 (es)
CN (1) CN1130923C (es)
CA (1) CA2191554C (es)
DE (1) DE69511700T2 (es)
ES (1) ES2138213T3 (es)
MX (1) MX9606439A (es)
MY (1) MY112289A (es)
RU (1) RU2215336C2 (es)
WO (1) WO1995035629A1 (es)

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JPH10145807A (ja) * 1996-11-12 1998-05-29 Matsushita Electric Ind Co Ltd オートカットオフ回路
KR100285903B1 (ko) * 1998-03-17 2001-04-16 윤종용 디스플레이장치의 비디오 안정화회로
KR100263862B1 (ko) * 1998-05-18 2000-08-16 김순택 투사 표시관의 구동 방법
EP0967809A1 (en) * 1998-06-22 1999-12-29 Deutsche Thomson-Brandt Gmbh Gamma matching of a video processor by means of three measured currents
DE19829031A1 (de) * 1998-06-30 2000-01-05 Thomson Brandt Gmbh Kompensation von Bildrohralterungseffekten
US6226037B1 (en) * 1998-07-28 2001-05-01 Thomson Licensing S.A. AKB interface circuit for kine driver IC
DE19916740A1 (de) * 1999-04-13 2000-10-19 Thomson Brandt Gmbh Meßfreier G2-Abgleich von Farbbildröhren
KR20010035728A (ko) * 1999-10-01 2001-05-07 박종섭 자동 스크린 전압 조절회로
US6636265B1 (en) * 2000-01-21 2003-10-21 Thomson Licensing S.A. Focus flutter prevention in TV receivers and monitors
US6897901B2 (en) * 2001-03-14 2005-05-24 Koninklijke Philips Electronics N.V. Circuit for combining AKB and selective beam current limiting and projection television system utilizing same
US6806908B2 (en) * 2001-08-10 2004-10-19 Koninklijke Philips Electronics N.V. Cathode current limiting circuit for projection television display systems
US6573669B1 (en) * 2001-10-09 2003-06-03 National Semiconductor Corporation Cathode ray tube driver circuit with frequency compensation without providing a leakage path for cathode current
KR100421016B1 (ko) * 2001-10-13 2004-03-04 삼성전자주식회사 비디오 신호의 흑신장 제어 장치 및 방법
RU2220514C2 (ru) * 2002-01-25 2003-12-27 Андрейко Александр Иванович Способ интерактивного телевидения, использующий фовеационные свойства глаз индивидуальных и групповых пользователей и защищающий видеоинформацию от несанкционированного доступа, распространения и использования
US20040080617A1 (en) * 2002-10-28 2004-04-29 Koninlijke Philips Electroics N.V. Method and apparatus to improve picture aesthetics during switch-on
KR20050080319A (ko) * 2004-02-09 2005-08-12 삼성전자주식회사 음극선관의 색상왜곡 방지용 바이어스 회로

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Publication number Priority date Publication date Assignee Title
GB1439917A (es) * 1972-08-29 1976-06-16
US3812397A (en) * 1973-02-15 1974-05-21 Rca Corp Independent electron gun bias control
US3959811A (en) * 1975-05-23 1976-05-25 Rca Corporation Set-up arrangement for a color television receiver
US4316212A (en) * 1980-09-25 1982-02-16 Rca Corporation Method for adjusting the bias of a kinescope in a color television receiver and apparatus to facilitate same
US4450476A (en) * 1982-06-23 1984-05-22 Rca Corporation Delayed reaction automatic kinescope biasing system
US4584596A (en) * 1984-04-13 1986-04-22 Rca Corporation Television receiver alignment system
GB8524198D0 (en) * 1985-10-01 1985-11-06 Rca Corp Brightness controlled akb system
US4660083A (en) * 1985-10-29 1987-04-21 Rca Corporation Video display system with stabilized background level
JP2897214B2 (ja) * 1988-04-15 1999-05-31 ソニー株式会社 テレビ受像機の自動レベル補正装置
JPH0396077A (ja) * 1989-09-08 1991-04-22 Hitachi Ltd 黒レベル補正回路
US5034666A (en) * 1990-04-13 1991-07-23 Thomson Consumer Electronics, Inc. Power supply for an electrode of a CRT
GB9124071D0 (en) * 1991-11-13 1992-01-02 Thomson Consumer Electronics Crt bias compensation
US5278476A (en) * 1991-11-13 1994-01-11 U.S. Philips Corporation Display device including a black level setting circuit

Also Published As

Publication number Publication date
DE69511700D1 (de) 1999-09-30
RU2215336C2 (ru) 2003-10-27
EP0769235A1 (en) 1997-04-23
US5894327A (en) 1999-04-13
JPH10501944A (ja) 1998-02-17
DE69511700T2 (de) 2000-03-02
MY112289A (en) 2001-05-31
WO1995035629A1 (en) 1995-12-28
JP3955318B2 (ja) 2007-08-08
KR100401399B1 (ko) 2004-02-19
KR970704303A (ko) 1997-08-09
ES2138213T3 (es) 2000-01-01
EP0769235B1 (en) 1999-08-25
CN1130923C (zh) 2003-12-10
CN1151234A (zh) 1997-06-04
CA2191554C (en) 2000-11-28
CA2191554A1 (en) 1995-12-28

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Legal Events

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FG Grant or registration
MM Annulment or lapse due to non-payment of fees