SG64365A1 - Black compensation circuit for a video display system - Google Patents

Black compensation circuit for a video display system

Info

Publication number
SG64365A1
SG64365A1 SG1996008349A SG1996008349A SG64365A1 SG 64365 A1 SG64365 A1 SG 64365A1 SG 1996008349 A SG1996008349 A SG 1996008349A SG 1996008349 A SG1996008349 A SG 1996008349A SG 64365 A1 SG64365 A1 SG 64365A1
Authority
SG
Singapore
Prior art keywords
display system
video display
compensation circuit
black compensation
black
Prior art date
Application number
SG1996008349A
Other languages
English (en)
Inventor
Charles Michael White
Thomas David Gurley
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 SG64365A1 publication Critical patent/SG64365A1/en

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
    • H04N9/648—Video amplifiers
    • 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
    • H04N5/18—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit
    • H04N5/185—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit for the black level
    • 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
    • H04N5/148—Video amplifiers
    • 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
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/73—Colour balance circuits, e.g. white balance circuits or colour temperature control

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Amplifiers (AREA)
SG1996008349A 1993-02-05 1994-02-02 Black compensation circuit for a video display system SG64365A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/014,156 US5453798A (en) 1993-02-05 1993-02-05 Black compensation circuit for a video display system

Publications (1)

Publication Number Publication Date
SG64365A1 true SG64365A1 (en) 1999-04-27

Family

ID=21763852

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996008349A SG64365A1 (en) 1993-02-05 1994-02-02 Black compensation circuit for a video display system

Country Status (10)

Country Link
US (1) US5453798A (zh)
EP (1) EP0609859A1 (zh)
JP (1) JPH06253173A (zh)
KR (1) KR100338236B1 (zh)
CN (1) CN1043108C (zh)
CA (1) CA2114880C (zh)
MX (1) MX9400919A (zh)
MY (1) MY111407A (zh)
SG (1) SG64365A1 (zh)
TW (1) TW283291B (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5781314A (en) * 1995-06-15 1998-07-14 Nikon Corporation Color image reading apparatus and method
DE19744902A1 (de) * 1996-11-26 1998-05-28 Thomson Brandt Gmbh Schaltung zur Steuerung der Bildröhre in einem Fernsehempfänger
US6140879A (en) * 1999-03-12 2000-10-31 National Semiconductor Corporation Cascode amplifier with positive feedback for high frequency performance and method for operating and optimizing such amplifier
TWI484820B (zh) * 2008-05-08 2015-05-11 Univ Nat Chunghsing A image correction circuit, and a display device including the image correction circuit
CN101909216B (zh) * 2009-06-02 2012-04-18 华晶科技股份有限公司 数字影像的细节的补偿方法
CN101931737B (zh) * 2009-06-22 2013-05-01 英属开曼群岛商恒景科技股份有限公司 黑电平补偿电路
CN102045492B (zh) * 2009-10-22 2013-05-22 英属开曼群岛商恒景科技股份有限公司 影像系统的信号链路
CN108314433B (zh) * 2018-03-26 2020-07-31 宜兴瑞泰耐火材料有限公司 一种高铝质耐侵蚀微膨胀耐火胶泥及其制备方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3947631A (en) * 1974-02-27 1976-03-30 Gte Sylvania Incorporated Automatic video signal control circuit
JPS5255321A (en) * 1975-10-31 1977-05-06 Hitachi Ltd Tv receiver
CA1069209A (en) * 1975-11-25 1980-01-01 Rca Corporation Video amplifier
GB1582138A (en) * 1976-07-19 1980-12-31 Rca Corp Video amplifier circuit
GB2091978B (en) * 1981-01-26 1984-08-22 Rca Corp Bias control for an image display device
JPS5961378A (ja) * 1982-09-30 1984-04-07 Nec Home Electronics Ltd 黒レベル補正回路
US4523233A (en) * 1982-11-12 1985-06-11 Rca Corporation Automatic bias control system with compensated sense point
JPS6087591A (ja) * 1983-10-20 1985-05-17 Matsushita Electric Ind Co Ltd 多重信号受信装置
US4577234A (en) * 1983-10-31 1986-03-18 Rca Corporation Driver amplifier for an image display device
US4600950A (en) * 1984-10-01 1986-07-15 Rca Corporation Kinescope bias sensing circuit
JPS61140279A (ja) * 1984-12-12 1986-06-27 Toshiba Corp 映像信号処理回路
JPS645569U (zh) * 1987-06-26 1989-01-12
GB8925438D0 (en) * 1989-11-10 1989-12-28 Rca Licensing Corp Non-linear rgb video signal processing
JP2764761B2 (ja) * 1990-07-19 1998-06-11 松下電器産業株式会社 映像信号平均輝度レベル検出装置
JPH04373389A (ja) * 1991-06-24 1992-12-25 Hitachi Ltd 映像信号増幅用トランジスタ回路
US5162902A (en) * 1991-12-16 1992-11-10 Thomson Consumer Electronics, Inc. Non-linear luminance signal processor responsive to average picture level (APL) of displayed image
US5339114A (en) * 1992-07-29 1994-08-16 Thomson Consumer Electronics, Inc. Television receiver with luminance signal clamped offset and re-clamped prior to contrast control for preventing black level changes with contrast control changes when displaying luminance signals having elevated black level

Also Published As

Publication number Publication date
TW283291B (zh) 1996-08-11
EP0609859A1 (en) 1994-08-10
US5453798A (en) 1995-09-26
KR100338236B1 (ko) 2002-08-27
MX9400919A (es) 1994-08-31
MY111407A (en) 2000-04-29
JPH06253173A (ja) 1994-09-09
CA2114880A1 (en) 1994-08-06
KR940020848A (ko) 1994-09-16
CN1043108C (zh) 1999-04-21
CN1097914A (zh) 1995-01-25
CA2114880C (en) 2003-07-15

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