ES8204897A1 - Un aparato para limitar automaticamente corrientes de haz excesivas conducidas por un cinescopio por encima de un nivel de umbral. - Google Patents

Un aparato para limitar automaticamente corrientes de haz excesivas conducidas por un cinescopio por encima de un nivel de umbral.

Info

Publication number
ES8204897A1
ES8204897A1 ES498917A ES498917A ES8204897A1 ES 8204897 A1 ES8204897 A1 ES 8204897A1 ES 498917 A ES498917 A ES 498917A ES 498917 A ES498917 A ES 498917A ES 8204897 A1 ES8204897 A1 ES 8204897A1
Authority
ES
Spain
Prior art keywords
voltage
beam current
derived
current
response
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
ES498917A
Other languages
English (en)
Other versions
ES498917A0 (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 ES8204897A1 publication Critical patent/ES8204897A1/es
Publication of ES498917A0 publication Critical patent/ES498917A0/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)
  • Electron Sources, Ion Sources (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

CIRCUITO ELECTRONICO PARA LIMITAR POR ENCIMA DE UN NIVEL DE UMBRAL CORRIENTES DE HAZ CONDUCIDAS POR UN CINESCOPIO EN UN RECEPTOR DE TELEVISION. ESTA COMPUESTO POR UN CIRCUITO (60) DE CONTROL ABL ALIMENTADO A UNA TENSION (EC) QUE REPRESENTA LA DEMANDA DE CORRIENTE MEDIA DE HAZ DEL CINESCOPIO (38). ESTA TENSION SE OBTIENE POR MEDIO DE UN CIRCUITO (54) DETECTOR, A CUYA ENTRADA SE CONECTAN UNA FUENTE (50) QUE GENERA ALTAS TENSIONES PARA LOS ELECTRODOS DEL CINESCOPIO Y UNARESISTENCIA (52) CUYO EXTREMO ESTA A LA TENSION (B+) DE FUNCIONAMIENTO. EL CIRCUITO DE CONTROL SUMINISTRA DOS SEÑALES LIMITADORAS DE CORRIENTE DE HAZ.
ES498917A 1980-02-05 1981-01-29 Un aparato para limitar automaticamente corrientes de haz excesivas conducidas por un cinescopio por encima de un nivel de umbral. Granted ES498917A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/118,855 US4295166A (en) 1980-02-05 1980-02-05 Failure compensated automatic kinescope beam current limiter

Publications (2)

Publication Number Publication Date
ES8204897A1 true ES8204897A1 (es) 1982-05-01
ES498917A0 ES498917A0 (es) 1982-05-01

Family

ID=22381141

Family Applications (1)

Application Number Title Priority Date Filing Date
ES498917A Granted ES498917A0 (es) 1980-02-05 1981-01-29 Un aparato para limitar automaticamente corrientes de haz excesivas conducidas por un cinescopio por encima de un nivel de umbral.

Country Status (12)

Country Link
US (1) US4295166A (es)
JP (1) JPS56125170A (es)
AT (1) AT384135B (es)
CA (1) CA1160355A (es)
DE (1) DE3103998C2 (es)
ES (1) ES498917A0 (es)
FI (1) FI73559C (es)
FR (1) FR2475336A1 (es)
GB (1) GB2073559B (es)
HK (1) HK48487A (es)
IT (1) IT1169034B (es)
PT (1) PT72428B (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4370674A (en) * 1981-03-03 1983-01-25 Zenith Radio Corporation Stabilization network for a cathode ray tube
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
US4709262A (en) * 1985-04-12 1987-11-24 Hazeltine Corporation Color monitor with improved color accuracy and current sensor
KR0147862B1 (ko) * 1994-08-25 1998-09-15 김광호 다중모드 모니터의 자동 빔전류 조성회로 및 그 방법
JP3501252B2 (ja) * 1995-06-16 2004-03-02 三菱電機株式会社 階調補正装置
US7154563B1 (en) * 1998-04-30 2006-12-26 Stmicroelectronics Asia Pacific Pte Ltd. Automatic brightness limitation for avoiding video signal clipping
JP4723631B2 (ja) * 2008-12-08 2011-07-13 東京エレクトロン株式会社 現像処理方法、プログラム、コンピュータ記憶媒体及び現像処理装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4137552A (en) * 1977-05-05 1979-01-30 Rca Corporation Automatic beam current limiter with independently determined threshold level and dynamic control range
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
US4253110A (en) * 1979-12-14 1981-02-24 Rca Corporation Automatic kinescope beam current limiter with sequential control modes

Also Published As

Publication number Publication date
FR2475336B1 (es) 1983-07-01
AT384135B (de) 1987-10-12
DE3103998C2 (de) 1983-02-03
HK48487A (en) 1987-07-03
IT1169034B (it) 1987-05-20
FI73559C (fi) 1987-10-09
JPH0421389B2 (es) 1992-04-09
FR2475336A1 (fr) 1981-08-07
PT72428A (en) 1981-02-01
GB2073559A (en) 1981-10-14
ES498917A0 (es) 1982-05-01
IT8119485A0 (it) 1981-02-03
CA1160355A (en) 1984-01-10
FI73559B (fi) 1987-06-30
GB2073559B (en) 1983-10-19
JPS56125170A (en) 1981-10-01
DE3103998A1 (de) 1981-11-26
FI810241L (fi) 1981-08-06
US4295166A (en) 1981-10-13
PT72428B (en) 1982-01-21
ATA52381A (de) 1987-02-15

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20020227