JPS61163491U - - Google Patents

Info

Publication number
JPS61163491U
JPS61163491U JP1985047705U JP4770585U JPS61163491U JP S61163491 U JPS61163491 U JP S61163491U JP 1985047705 U JP1985047705 U JP 1985047705U JP 4770585 U JP4770585 U JP 4770585U JP S61163491 U JPS61163491 U JP S61163491U
Authority
JP
Japan
Prior art keywords
gamma correction
correction
reference signal
video signal
detection
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.)
Granted
Application number
JP1985047705U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0411432Y2 (US06623731-20030923-C00012.png
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 filed Critical
Priority to JP1985047705U priority Critical patent/JPH0411432Y2/ja
Priority to US06/837,960 priority patent/US4686562A/en
Publication of JPS61163491U publication Critical patent/JPS61163491U/ja
Application granted granted Critical
Publication of JPH0411432Y2 publication Critical patent/JPH0411432Y2/ja
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof
    • H04N23/82—Camera processing pipelines; Components thereof for controlling camera response irrespective of the scene brightness, e.g. gamma correction
    • H04N23/83—Camera processing pipelines; Components thereof for controlling camera response irrespective of the scene brightness, e.g. gamma correction specially adapted for 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
    • H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
    • H04N9/69—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits for modifying the colour signals by gamma correction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Processing Of Color Television Signals (AREA)
JP1985047705U 1985-03-30 1985-03-30 Expired JPH0411432Y2 (US06623731-20030923-C00012.png)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1985047705U JPH0411432Y2 (US06623731-20030923-C00012.png) 1985-03-30 1985-03-30
US06/837,960 US4686562A (en) 1985-03-30 1986-03-10 Gamma correction circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985047705U JPH0411432Y2 (US06623731-20030923-C00012.png) 1985-03-30 1985-03-30

Publications (2)

Publication Number Publication Date
JPS61163491U true JPS61163491U (US06623731-20030923-C00012.png) 1986-10-09
JPH0411432Y2 JPH0411432Y2 (US06623731-20030923-C00012.png) 1992-03-23

Family

ID=12782715

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985047705U Expired JPH0411432Y2 (US06623731-20030923-C00012.png) 1985-03-30 1985-03-30

Country Status (2)

Country Link
US (1) US4686562A (US06623731-20030923-C00012.png)
JP (1) JPH0411432Y2 (US06623731-20030923-C00012.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS634774A (ja) * 1986-06-23 1988-01-09 ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング ビデオ信号の非直線伝送方法および回路装置

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU607033B2 (en) * 1988-01-12 1991-02-21 Sanyo Electric Co., Ltd. Auto iris/gamma correction apparatus for making automatic exposure adjustment and/or automatic gamma correction in response to video signal and image sensing apparatus comprising such auto iris/gamma correction apparatus
US5302946A (en) * 1988-07-21 1994-04-12 Leonid Shapiro Stacked display panel construction and method of making same
US5298892A (en) * 1988-07-21 1994-03-29 Proxima Corporation Stacked display panel construction and method of making same
JPH03276968A (ja) * 1989-09-19 1991-12-09 Ikegami Tsushinki Co Ltd 非線形量子化回路の誤差補正方法および回路
US5070405A (en) * 1989-09-19 1991-12-03 Nikon Corporation Electronic still camera with multi-area light metering and gray scale modification
JPH0437263A (ja) * 1990-05-31 1992-02-07 Matsushita Electric Ind Co Ltd 階調補正装置
US5396300A (en) * 1990-05-31 1995-03-07 Matsushita Electric Industrial Co., Ltd. Contrast correction device for correcting video signal contrast by varying luminance signal
JPH0522655A (ja) * 1991-07-10 1993-01-29 Sony Corp ビデオカメラ
EP0570873B1 (en) * 1992-05-22 1998-07-29 Thomson Consumer Electronics, Inc. Non-linear video signal processor employing picture element analysis
US5933199A (en) * 1995-09-15 1999-08-03 Lg Electronics Inc. Gamma correction circuit using analog multiplier
JP3332737B2 (ja) * 1996-01-31 2002-10-07 キヤノン株式会社 信号処理回路及び液晶表示装置
US6633343B2 (en) * 2000-03-14 2003-10-14 Matsushita Electric Industrial Co., Ltd. Dynamic gamma correction apparatus
CN107124602B (zh) * 2017-05-24 2018-10-19 四川长虹电器股份有限公司 生产线自动Gamma曲线调试方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51122321A (en) * 1975-03-31 1976-10-26 Rca Corp Device for automatically correcting gamma of television color signal
JPS605658U (ja) * 1983-06-27 1985-01-16 松下電器産業株式会社 電気調理器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1534777A (fr) * 1967-06-01 1968-08-02 Thomson Houston Comp Francaise Perfectionnements aux circuits de correction de gamma
US3950290A (en) * 1973-05-01 1976-04-13 A. E. Staley Manufacturing Company Aqueous coating and printing compositions
CA1204853A (en) * 1983-01-07 1986-05-20 Joichi Sato Gamma compensating circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51122321A (en) * 1975-03-31 1976-10-26 Rca Corp Device for automatically correcting gamma of television color signal
JPS605658U (ja) * 1983-06-27 1985-01-16 松下電器産業株式会社 電気調理器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS634774A (ja) * 1986-06-23 1988-01-09 ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング ビデオ信号の非直線伝送方法および回路装置

Also Published As

Publication number Publication date
JPH0411432Y2 (US06623731-20030923-C00012.png) 1992-03-23
US4686562A (en) 1987-08-11

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