ES2087347T3 - Receptor de television con medios para proteger contra la explosion de puntos y evitar el brillo residual. - Google Patents

Receptor de television con medios para proteger contra la explosion de puntos y evitar el brillo residual.

Info

Publication number
ES2087347T3
ES2087347T3 ES92110605T ES92110605T ES2087347T3 ES 2087347 T3 ES2087347 T3 ES 2087347T3 ES 92110605 T ES92110605 T ES 92110605T ES 92110605 T ES92110605 T ES 92110605T ES 2087347 T3 ES2087347 T3 ES 2087347T3
Authority
ES
Spain
Prior art keywords
image tube
high voltage
circuit
explosion
points
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 - Lifetime
Application number
ES92110605T
Other languages
English (en)
Inventor
Wolfgang Heidebroek
Zeith Wu
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.)
Vantiva SA
Original Assignee
Thomson Multimedia SA
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 Multimedia SA filed Critical Thomson Multimedia SA
Application granted granted Critical
Publication of ES2087347T3 publication Critical patent/ES2087347T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04N3/20—Prevention of damage to cathode-ray tubes in the event of failure of scanning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/63—Generation or supply of power specially adapted for television receivers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0032—Control circuits allowing low power mode operation, e.g. in standby mode
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)
  • Television Receiver Circuits (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

UN APARATO DE TELEVISION INCLUYE UN TUBO DE IMAGEN QUE TIENE UN SUMINISTRO DE ALTA TENSION (B +), UN CIRCUITO DE DEFLEXION (86), UN AMPLIFICADOR EXCITADOR CATODICO (84) Y UN CIRCUITO DE CONTROL (82) PARA CONTROL DE LOS MODOS DE FUNCIONAMIENTO DEL RECEPTOR. UN PRIMER MEDIO (TR17) SENSIBLE A UNA SEÑAL DE COMANDO DE DESCONEXION (STBY) DESDE EL CIRCUITO DE CONTROL (82) DESACTIVA EL SUMINISTRO DE ALTA TENSION (B +) E INICIA LA DESCONEXION DEL CIRCUITO DE DEFLEXION (86) EN UNA RELACION CONTROLADA. SIMULTANEAMENTE, UN SEGUNDO MEDIO (DR10, DR11) SENSIBLE AL COMANDO DE DESCONEXION (STBY) APLICA UNA SEÑAL DE IMPULSO DE CONEXION, AL MENOS, A UN DISPARADOR DE ELECTRONES DE DICHO TUBO DE IMAGEN PARA DESCARGAR LA TENSION ALTA DEL MISMO. VENTAJOSAMENTE, DURANTE LA DESCONEXION SE DISPERSA LA TENSION ALTA DESDE EL TUBO DE IMAGEN A MEDIDA QUE LA EXPLORACION TOTAL DE IMAGEN VISUALIZADA SE DEBILITA PROPORCIONANDO, DE ESTE MODO, BENEFICIOS TALES COMO (1) LA CARACTERISTICA DE SEGURIDAD DE TENER UN TUBO DE IMAGENTOTALMENTE DESCARGADO, (2) EVITAR LA QUEMADURA DEL PUNTO DEL TUBO DE IMAGEN Y (3) EVITAR LA FOSFORESCENCIA DEL TUBO DE IMAGEN.
ES92110605T 1991-07-03 1992-06-24 Receptor de television con medios para proteger contra la explosion de puntos y evitar el brillo residual. Expired - Lifetime ES2087347T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/725,052 US5184225A (en) 1991-07-03 1991-07-03 Television receiver with spot burn protection and after-glow suppression

Publications (1)

Publication Number Publication Date
ES2087347T3 true ES2087347T3 (es) 1996-07-16

Family

ID=24912961

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92110605T Expired - Lifetime ES2087347T3 (es) 1991-07-03 1992-06-24 Receptor de television con medios para proteger contra la explosion de puntos y evitar el brillo residual.

Country Status (10)

Country Link
US (1) US5184225A (es)
EP (1) EP0521378B1 (es)
JP (1) JPH05207314A (es)
KR (1) KR100240178B1 (es)
CA (1) CA2072321C (es)
DE (1) DE69209909T2 (es)
ES (1) ES2087347T3 (es)
MX (1) MX9203942A (es)
MY (1) MY108382A (es)
SG (1) SG92593A1 (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940002934B1 (ko) * 1991-10-30 1994-04-07 삼성전자 주식회사 텔레비젼의 화면과도현상방지회로
JPH07212679A (ja) * 1994-01-13 1995-08-11 Funai Electric Co Ltd Ｃｒｔの高圧放電回路
JPH0876707A (ja) * 1994-07-08 1996-03-22 Sony Corp 電子ビームによる表示装置と表示画面の消去方法
KR0116710Y1 (ko) * 1994-09-30 1998-04-23 김광호 스포트 킬러 회로
KR100358613B1 (ko) * 1995-01-11 2003-01-15 코닌클리케 필립스 일렉트로닉스 엔.브이. 화상표시관방전방법및화상표시장치
KR100226686B1 (ko) * 1996-05-21 1999-10-15 전주범 Crt 보호 장치
GB2313759A (en) * 1996-05-30 1997-12-03 Thomson Multimedia Sa Changing EHT generator duty cycle in standby mode
US5844668A (en) * 1996-08-28 1998-12-01 Sami Protection window for optical sensors in industrial applications
KR100246914B1 (ko) * 1997-07-14 2000-03-15 윤종용 디지털 텔레비젼 수상기의 전원제어방법과 장치
US6211908B1 (en) * 1999-05-27 2001-04-03 Thomson Multimedia Licensing S.A. Television apparatus with supplementary kinescope blanking and spot burn protection circuitry
KR20010035729A (ko) * 1999-10-01 2001-05-07 박종섭 스포트 킬러 회로
US6252361B1 (en) * 1999-10-15 2001-06-26 Thomson Licensing S.A. High-voltage power supply disabling circuit for video display
JP2003283863A (ja) * 2002-03-20 2003-10-03 Orion Denki Kk 陰極線管表示装置のスポットキラー制御回路及び制御方法
US7466340B1 (en) * 2005-02-09 2008-12-16 William Herz Method and apparatus for protection against pixel burn-in

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3407330A (en) * 1966-02-21 1968-10-22 Rca Corp Protection circuit for cathode ray tube
US3535445A (en) * 1967-08-18 1970-10-20 Motorola Inc Cathode ray tube protection circuit
US3462640A (en) * 1968-10-21 1969-08-19 Zenith Radio Corp Spot-burn protection circuit
US4275338A (en) * 1979-09-19 1981-06-23 Zenith Radio Corporation Anti-spot burn protection for CRT
US4488181A (en) * 1982-04-23 1984-12-11 Rca Corporation Electron beam suppression circuit for a television receiver
JPS59146747A (ja) * 1983-02-09 1984-08-22 Kawasaki Heavy Ind Ltd 研削方法
JPS60143066A (ja) * 1983-12-29 1985-07-29 Matsushita Electric Ind Co Ltd 映像出力回路
US4698681A (en) * 1985-09-11 1987-10-06 Zenith Electronics Corporation Dual intensity video circuit
JPS6292584A (ja) * 1985-10-18 1987-04-28 Hitachi Ltd スポツトキラ−回路
US4723167A (en) * 1987-02-24 1988-02-02 Zenith Electronics Corporation Turn-off circuit for projection television CRT
JPH0223777A (ja) * 1988-07-13 1990-01-25 Sharp Corp テレビジョン受像機
JP2552551B2 (ja) * 1989-08-10 1996-11-13 三洋電機株式会社 陰極線管の高圧放電回路
JPH03220980A (ja) * 1990-01-26 1991-09-30 Sanyo Electric Co Ltd 陰極線管の高圧放電用クランプ回路

Also Published As

Publication number Publication date
KR100240178B1 (ko) 2000-01-15
EP0521378B1 (en) 1996-04-17
DE69209909T2 (de) 1996-10-24
US5184225A (en) 1993-02-02
DE69209909D1 (de) 1996-05-23
EP0521378A1 (en) 1993-01-07
KR930003710A (ko) 1993-02-24
JPH05207314A (ja) 1993-08-13
CA2072321A1 (en) 1993-01-04
MY108382A (en) 1996-09-30
CA2072321C (en) 1998-10-13
MX9203942A (es) 1993-07-01
SG92593A1 (en) 2002-11-19

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