ES477072A1 - Un dispositivo de presentacion de imagenes de television. - Google Patents

Un dispositivo de presentacion de imagenes de television.

Info

Publication number
ES477072A1
ES477072A1 ES477072A ES477072A ES477072A1 ES 477072 A1 ES477072 A1 ES 477072A1 ES 477072 A ES477072 A ES 477072A ES 477072 A ES477072 A ES 477072A ES 477072 A1 ES477072 A1 ES 477072A1
Authority
ES
Spain
Prior art keywords
beam current
control apparatus
current control
crt beam
blacker
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
ES477072A
Other languages
English (en)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES477072A1 publication Critical patent/ES477072A1/es
Expired legal-status Critical Current

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/16—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level
    • H04N5/165—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level to maintain the black level constant

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Television Receiver Circuits (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

Un dispositivo de presentación de imágenes de televisión que tiene un tubo de presentación de imágenes accionable mediante un cátodo por un seguidor de emisor, estando conectada una entrada de un circuito de control de nivel de referencia de la corriente de haz al colector de este seguidor de emisor, caracterizado porque el circuito de control de referencia de la corriente de infranegra sobre el circuito de control del nivel de referencia de la conducción de corriente de infranegro está acoplado al cátodo del tubo de presentación de imágenes, de modo que también una corriente de infranegro del tubo de presentación de imágenes que tiene lugar con corriente de haz bloqueada, puede ser tratado por el circuito de control del nivel de referencia de corriente de haz.
ES477072A 1978-01-25 1979-01-23 Un dispositivo de presentacion de imagenes de television. Expired ES477072A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7800870,A NL184657C (nl) 1978-01-25 1978-01-25 Televisiebeeldweergeefinrichting.

Publications (1)

Publication Number Publication Date
ES477072A1 true ES477072A1 (es) 1979-07-16

Family

ID=19830223

Family Applications (1)

Application Number Title Priority Date Filing Date
ES477072A Expired ES477072A1 (es) 1978-01-25 1979-01-23 Un dispositivo de presentacion de imagenes de television.

Country Status (16)

Country Link
US (1) US4224640A (es)
JP (1) JPS54111221A (es)
AU (1) AU528435B2 (es)
BE (1) BE873633A (es)
BR (1) BR7900400A (es)
CA (1) CA1135837A (es)
DE (1) DE2902366C2 (es)
DK (1) DK146309C (es)
ES (1) ES477072A1 (es)
FR (1) FR2415931A1 (es)
GB (1) GB2014408B (es)
IT (1) IT1117582B (es)
MX (1) MX147217A (es)
NL (1) NL184657C (es)
NZ (1) NZ189428A (es)
SE (1) SE430012B (es)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4331981A (en) * 1980-09-25 1982-05-25 Rca Corporation Linear high gain sampling amplifier
US4331982A (en) * 1980-09-25 1982-05-25 Rca Corporation Sample and hold circuit particularly for small signals
US4442458A (en) * 1982-03-29 1984-04-10 Tektronix, Inc. CRT Video drive circuit with beam current stabilization
US4463385A (en) * 1982-07-01 1984-07-31 Rca Corporation Kinescope black level current sensing apparatus
US4523233A (en) * 1982-11-12 1985-06-11 Rca Corporation Automatic bias control system with compensated sense point
US4516152A (en) * 1983-05-23 1985-05-07 Rca Corporation Video signal processor with automatic kinescope white balance and beam current limiter control systems
US4703345A (en) * 1983-12-20 1987-10-27 Sony Corporation Current control apparatus in which the beam current for all three colors is controlled according to average and peak values
NL8502637A (nl) * 1985-03-06 1986-10-01 Philips Nv Beeldweergeefinrichting.
NL8502636A (nl) * 1985-03-06 1986-10-01 Philips Nv Beeldweergeefinrichting.
US4730210A (en) * 1985-08-14 1988-03-08 Zenith Electronics Corporation Wideband analog RGB video processor with negative feedback capability and black level control
FR2674705A1 (fr) * 1991-03-29 1992-10-02 Philips Electro Grand Public Dispositif amplificateur video.
US5278476A (en) * 1991-11-13 1994-01-11 U.S. Philips Corporation Display device including a black level setting circuit
JPH0614272B2 (ja) * 1992-04-28 1994-02-23 インターナショナル・ビジネス・マシーンズ・コーポレイション 表示システム
WO1997029588A2 (en) * 1996-02-07 1997-08-14 Philips Electronics N.V. Beam current measurement in a video output stage
US5994841A (en) * 1996-10-25 1999-11-30 Welch Allyn, Inc. Circuit for biasing display device by compensating for a varying leakage current
US5892544A (en) * 1997-09-15 1999-04-06 Sony Electronics, Inc. Beam current detection and control system for a cathode ray tube
US6226037B1 (en) * 1998-07-28 2001-05-01 Thomson Licensing S.A. AKB interface circuit for kine driver IC

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3598913A (en) * 1968-12-18 1971-08-10 Philips Corp Television receiver
NL6903362A (es) * 1969-03-05 1970-09-08
NL164170C (nl) * 1972-02-24 1980-11-17 Philips Nv Kleurentelevisieweergeefinrichting met een bundel- stroomklemregelschakeling.
NL179329C (nl) * 1974-09-09 1986-08-18 Philips Nv Televisieontvanger met een bundelstroombegrenzingsschakeling.
US4012775A (en) * 1975-04-28 1977-03-15 Thomson Csf Laboratories, Inc. System for stabilizing cathode ray tube operation
US4067048A (en) * 1976-08-19 1978-01-03 Rca Corporation Automatic beam current limiter

Also Published As

Publication number Publication date
FR2415931A1 (fr) 1979-08-24
NL7800870A (nl) 1979-07-27
SE430012B (sv) 1983-10-10
JPH025352B2 (es) 1990-02-01
DK26479A (da) 1979-07-26
IT1117582B (it) 1986-02-17
AU4359079A (en) 1979-08-02
JPS54111221A (en) 1979-08-31
NL184657B (nl) 1989-04-17
DK146309B (da) 1983-08-29
FR2415931B1 (es) 1984-07-13
DE2902366A1 (de) 1979-07-26
NZ189428A (en) 1982-02-23
GB2014408A (en) 1979-08-22
DK146309C (da) 1984-02-06
BR7900400A (pt) 1979-08-21
SE7900524L (sv) 1979-07-26
DE2902366C2 (de) 1985-01-17
IT7967137A0 (it) 1979-01-22
US4224640A (en) 1980-09-23
MX147217A (es) 1982-10-25
CA1135837A (en) 1982-11-16
BE873633A (fr) 1979-07-23
NL184657C (nl) 1989-09-18
GB2014408B (en) 1982-04-15
AU528435B2 (en) 1983-04-28

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20000301