DE69117599D1 - Vorrichtung zur Gammakorrektur eines analogen Videosignals - Google Patents

Vorrichtung zur Gammakorrektur eines analogen Videosignals

Info

Publication number
DE69117599D1
DE69117599D1 DE69117599T DE69117599T DE69117599D1 DE 69117599 D1 DE69117599 D1 DE 69117599D1 DE 69117599 T DE69117599 T DE 69117599T DE 69117599 T DE69117599 T DE 69117599T DE 69117599 D1 DE69117599 D1 DE 69117599D1
Authority
DE
Germany
Prior art keywords
video signal
gamma correction
analog video
analog
gamma
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 - Fee Related
Application number
DE69117599T
Other languages
English (en)
Other versions
DE69117599T2 (de
Inventor
Marc Riviere
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.)
Telediffusion de France ets Public de Diffusion
Orange SA
Original Assignee
Telediffusion de France ets Public de Diffusion
France Telecom 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 Telediffusion de France ets Public de Diffusion, France Telecom SA filed Critical Telediffusion de France ets Public de Diffusion
Application granted granted Critical
Publication of DE69117599D1 publication Critical patent/DE69117599D1/de
Publication of DE69117599T2 publication Critical patent/DE69117599T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/20—Circuitry for controlling amplitude response
    • H04N5/202—Gamma control

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
DE69117599T 1990-07-06 1991-07-02 Vorrichtung zur Gammakorrektur eines analogen Videosignals Expired - Fee Related DE69117599T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9008618A FR2664452B1 (fr) 1990-07-06 1990-07-06 Dispositif de correction de gamma sur signal video analogique.

Publications (2)

Publication Number Publication Date
DE69117599D1 true DE69117599D1 (de) 1996-04-11
DE69117599T2 DE69117599T2 (de) 1996-08-22

Family

ID=9398451

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69117599T Expired - Fee Related DE69117599T2 (de) 1990-07-06 1991-07-02 Vorrichtung zur Gammakorrektur eines analogen Videosignals

Country Status (4)

Country Link
US (1) US5251017A (de)
EP (1) EP0465349B1 (de)
DE (1) DE69117599T2 (de)
FR (1) FR2664452B1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR950005050Y1 (ko) * 1991-12-05 1995-06-21 삼성전자 주식회사 디지탈 카메라의 아날로그 겸용회로
US5978041A (en) * 1994-10-24 1999-11-02 Hitachi, Ltd. Image display system
US6791623B1 (en) 1994-10-24 2004-09-14 Hitachi, Ltd. Image display system
US5900918A (en) * 1997-07-30 1999-05-04 Hughes-Jvc Technology Corporation Adjustable video gamma circuit
US7417459B2 (en) * 2005-04-06 2008-08-26 Intel Corporation On-die offset reference circuit block
KR100626077B1 (ko) * 2005-05-02 2006-09-20 삼성에스디아이 주식회사 감마 기준전압 발생회로 및 이를 구비하는 평판 표시장치
US7683694B2 (en) * 2007-03-14 2010-03-23 Quantance, Inc. Low noise logarithmic detector

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA896718A (en) * 1970-05-07 1972-03-28 El-Banna Mahmoud Power supply and control circuit
US4568978A (en) * 1982-06-30 1986-02-04 U.S. Philips Corporation Method of a circuit arrangement for producing a gamma corrected video signal
CA1204853A (en) * 1983-01-07 1986-05-20 Joichi Sato Gamma compensating circuit
DE3341667A1 (de) * 1983-11-18 1985-05-30 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zur gradationsvorentzerrung von fernsehsignalen
US4736244A (en) * 1984-12-12 1988-04-05 Fuji Photo Film Co., Ltd. Color film inspection system and data output method therefor
US4794622A (en) * 1985-06-03 1988-12-27 Linear Corporation Low power transmitter frequency stabilization
US4829381A (en) * 1988-04-18 1989-05-09 Polaroid Corporation System and method for electronic image enhancement by dynamic pixel transformation

Also Published As

Publication number Publication date
EP0465349A1 (de) 1992-01-08
FR2664452B1 (fr) 1992-10-02
US5251017A (en) 1993-10-05
DE69117599T2 (de) 1996-08-22
EP0465349B1 (de) 1996-03-06
FR2664452A1 (fr) 1992-01-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee