MX9307858A - Retrazo vertical con distancia focal variable, y retrazo rapido centrado. - Google Patents

Retrazo vertical con distancia focal variable, y retrazo rapido centrado.

Info

Publication number
MX9307858A
MX9307858A MX9307858A MX9307858A MX9307858A MX 9307858 A MX9307858 A MX 9307858A MX 9307858 A MX9307858 A MX 9307858A MX 9307858 A MX9307858 A MX 9307858A MX 9307858 A MX9307858 A MX 9307858A
Authority
MX
Mexico
Prior art keywords
current
delay
lap
variable focal
ramp
Prior art date
Application number
MX9307858A
Other languages
English (en)
Inventor
James Albert Wilber
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 MX9307858A publication Critical patent/MX9307858A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/72—Modifying the appearance of television pictures by optical filters or diffusing screens
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/223—Controlling dimensions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/27—Circuits special to multi-standard receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)
  • Studio Circuits (AREA)

Abstract

El receptor de televisión es controlado con respecto al grado de distancia focal variable vertical por medio de una rampa de corriente de desviación que varía en su inclinación, y que se puede demorar para lograr el apaisado. Debido a la mayor inclinación cuando se pone en distancia focal variable, la corriente de desviación y un haz de electrones completan un trazo en menos tiempo que el intervalo vertical normal. La corriente de desviación se mantiene en un extremo o en el otro, afuera del intervalo del trazo, y el haz se pone en blanco. Un generador de señal de retraso (10a, C17, U07) acoplado en un ciclo de retroalimentación (IERROR) con el suministro de energía eléctrica para el circuito de desviación, determina el punto medio del período en blanco, y generar un retraso rápido (VRESET) en o cerca del punto medio. El ciclo de retroalimentación se configura para minimizar la corriente promedio de corriente directa en la bobina de desviación, teniendo una fuente de corriente que responde a la corriente promedio de corriente directa para cargar una rampa de tiempo (C17) que dispara el retraso al llegar a un umbral. La inclinación de la rampa de tiempo varía con la carga de corriente directa avanzando o retardando de esta manera el retraso hasta el retraso central en el intervalo en blanco.
MX9307858A 1992-12-11 1993-12-10 Retrazo vertical con distancia focal variable, y retrazo rapido centrado. MX9307858A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/987,956 US5369341A (en) 1992-12-11 1992-12-11 Vertical retrace with zoom and centered fast retrace

Publications (1)

Publication Number Publication Date
MX9307858A true MX9307858A (es) 1994-08-31

Family

ID=25533736

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9307858A MX9307858A (es) 1992-12-11 1993-12-10 Retrazo vertical con distancia focal variable, y retrazo rapido centrado.

Country Status (10)

Country Link
US (1) US5369341A (es)
EP (1) EP0609514B1 (es)
JP (1) JP3563429B2 (es)
KR (1) KR100296654B1 (es)
CN (1) CN1050252C (es)
DE (1) DE69323991T2 (es)
MX (1) MX9307858A (es)
MY (1) MY110453A (es)
SG (1) SG63567A1 (es)
TW (1) TW225082B (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3776129B2 (ja) * 1996-10-14 2006-05-17 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ ダンピングインピーダンス補償付き偏向回路
GB9623629D0 (en) * 1996-11-13 1997-01-08 Rca Thomson Licensing Corp Width and phase control of blanking pulse
US6313590B1 (en) * 2000-06-22 2001-11-06 Thomson Licensing S.A. Compensation of vertical deflection
DE10119378A1 (de) * 2001-04-19 2002-10-24 Broadcasttelevision Systems Ca Sucher mit Bildvergrößerung für Fernsehkameras
US6894445B2 (en) * 2001-08-31 2005-05-17 Thomson Licensing S.A. Cathode ray tube phosphor protection
JP2005328476A (ja) * 2004-05-17 2005-11-24 Sony Corp 撮像装置、および固体撮像素子の駆動制御方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3471743A (en) * 1967-03-14 1969-10-07 Bofors Ab Circuit system for enlarging a selected part of the image on the screen of a cathode ray tube
US3705328A (en) * 1970-05-01 1972-12-05 Bell Telephone Labor Inc Electronic zooming in video cameras by control of the deflection system
US3713000A (en) * 1971-11-26 1973-01-23 Us Navy Sweep generator with automatic centering
US4028726A (en) * 1975-01-27 1977-06-07 Zenith Radio Corporation TV receiver raster expansion system
JPS57206178A (en) * 1981-06-12 1982-12-17 Sony Corp Television picture receiver
US4820960A (en) * 1987-09-28 1989-04-11 United Technologies Corporation Fast retrace circuit for a deflection amplifier in a cathode ray tube
US4874992A (en) * 1988-08-04 1989-10-17 Honeywell Inc. Closed loop adaptive raster deflection signal generator
GB9012326D0 (en) * 1990-06-01 1990-07-18 Thomson Consumer Electronics Wide screen television
DE4100103C2 (de) * 1991-01-04 2002-03-21 Thomson Brandt Gmbh Vertikalablenkschaltung für einen Fernsehempfänger
US5089755A (en) * 1991-02-19 1992-02-18 Thomson Consumer Electronics, Inc. Vertical deflection circuit
US5229692A (en) * 1992-07-10 1993-07-20 Thomson Consumer Electronics, Inc. Vertical deflection arrangement with S-correction

Also Published As

Publication number Publication date
MY110453A (en) 1998-05-30
TW225082B (en) 1994-06-11
EP0609514A3 (en) 1994-11-02
EP0609514A2 (en) 1994-08-10
KR100296654B1 (ko) 2001-10-24
DE69323991D1 (de) 1999-04-22
CN1050252C (zh) 2000-03-08
SG63567A1 (en) 1999-03-30
KR940017816A (ko) 1994-07-27
US5369341A (en) 1994-11-29
JPH0746470A (ja) 1995-02-14
EP0609514B1 (en) 1999-03-17
JP3563429B2 (ja) 2004-09-08
DE69323991T2 (de) 1999-07-01
CN1093852A (zh) 1994-10-19

Similar Documents

Publication Publication Date Title
ES452032A1 (es) Perfeccionamientos introducidos en un dispositivo de desvia-cion de haz electromagneticamente controlable.
MX9307858A (es) Retrazo vertical con distancia focal variable, y retrazo rapido centrado.
ES497702A0 (es) Perfeccionamientos en aparatos limitadores automaticos del haz electronico de un cinescopio con modos de control de se-cuenciales.
MY105962A (en) Raster size regulating circuit.
ES2043486A1 (es) Circuito de estabilizacion de alta tension para un aparato de presentacion de video.
MX9203942A (es) Receptor de television con provisiones para una proteccion contra el quemado de punto y supresion de la luminiscencia residual.
EP0414184A3 (en) High voltage regulator circuit for picture tube
US3863106A (en) Vertical deflection circuit
KR900005772A (ko) 편향회로
CA2041230A1 (en) Self biasing protection arrangement for a cathode ray tube
MY105464A (en) Projection tv deflection loss protection circuit.
MY109098A (en) An arrangement for generating a beam current indicative signal
FR2338612A1 (fr) Circuit pour engendrer un courant de deviation dans une bobine de deviation
ES465083A1 (es) Aparato para iniciar una reaccion termoquimica en la super- ficie de una pieza de trabajo metalica.
EP0351780A3 (en) Cesium oscillator
GB2135859A (en) Picture size control circuit
EP0317373A3 (en) Laser beam communication between spacecraft
US4808830A (en) Infrared beam projector
SU518169A3 (ru) Телевизионное устройство дл контрол зоны плавки полупроводниковых материалов
DE2749053A1 (de) Anordnung zur beruehrungslosen abtastung bewegter textilfaeden
KR880014799A (ko) 위상 제어회로의 제어속도를 자동으로 전환하는 회로
ES2041696T3 (es) Un desplazador de nivel para una fuente de alimentacion, por ejemplo en un aparato de television.
GB1303863A (es)
KR930020952A (ko) 비디오 디스플레이의 톱니파 발생기용 서비스 조절 장치
FI62443C (fi) Avlaenkningssystem med oeveravsoekningsskydd

Legal Events

Date Code Title Description
FG Grant or registration
MM Annulment or lapse due to non-payment of fees