KR100521672B1 - 주변 광에 의존하는 비디오 신호 처리 - Google Patents

주변 광에 의존하는 비디오 신호 처리 Download PDF

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Publication number
KR100521672B1
KR100521672B1 KR10-1999-7002106A KR19997002106A KR100521672B1 KR 100521672 B1 KR100521672 B1 KR 100521672B1 KR 19997002106 A KR19997002106 A KR 19997002106A KR 100521672 B1 KR100521672 B1 KR 100521672B1
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KR
South Korea
Prior art keywords
ambient light
video signal
signal processing
amount
measured
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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 - Lifetime
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KR10-1999-7002106A
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English (en)
Korean (ko)
Other versions
KR20000068548A (ko
Inventor
바르트파울욘
니오이벤후이첸미헬보우터
Original Assignee
코닌클리케 필립스 일렉트로닉스 엔.브이.
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Application filed by 코닌클리케 필립스 일렉트로닉스 엔.브이. filed Critical 코닌클리케 필립스 일렉트로닉스 엔.브이.
Publication of KR20000068548A publication Critical patent/KR20000068548A/ko
Application granted granted Critical
Publication of KR100521672B1 publication Critical patent/KR100521672B1/ko
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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
    • H04N5/58—Control of contrast or brightness in dependence upon ambient light
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42202—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS] environmental sensors, e.g. for detecting temperature, luminosity, pressure, earthquakes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4318—Generation of visual interfaces for content selection or interaction; Content or additional data rendering by altering the content in the rendering process, e.g. blanking, blurring or masking an image region

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Emergency Management (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • Remote Sensing (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Television Receiver Circuits (AREA)
  • Picture Signal Circuits (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
KR10-1999-7002106A 1997-07-14 1998-04-30 주변 광에 의존하는 비디오 신호 처리 Expired - Lifetime KR100521672B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP97202202.4 1997-07-14
EP97202202 1997-07-14

Publications (2)

Publication Number Publication Date
KR20000068548A KR20000068548A (ko) 2000-11-25
KR100521672B1 true KR100521672B1 (ko) 2005-10-17

Family

ID=8228561

Family Applications (1)

Application Number Title Priority Date Filing Date
KR10-1999-7002106A Expired - Lifetime KR100521672B1 (ko) 1997-07-14 1998-04-30 주변 광에 의존하는 비디오 신호 처리

Country Status (6)

Country Link
US (1) US6229577B1 (enExample)
EP (1) EP0925683B1 (enExample)
JP (1) JP2001502875A (enExample)
KR (1) KR100521672B1 (enExample)
DE (1) DE69828680T2 (enExample)
WO (1) WO1999004562A1 (enExample)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1086584B1 (en) * 1999-04-06 2010-09-15 Koninklijke Philips Electronics N.V. Apparatus for processing signals
US6628831B1 (en) * 1999-10-12 2003-09-30 Intel Corporation Darkness-detecting web camera system
US6618045B1 (en) * 2000-02-04 2003-09-09 Microsoft Corporation Display device with self-adjusting control parameters
JP4783985B2 (ja) * 2001-02-28 2011-09-28 日本電気株式会社 映像処理装置、映像表示装置及びそれに用いる映像処理方法並びにそのプログラム
JP2003076333A (ja) 2001-09-03 2003-03-14 Nec Saitama Ltd ディスプレイの輝度調整方法、その方法を適用したディスプレイの駆動回路及び携帯用電子機器
AU2003206429A1 (en) * 2002-07-02 2004-01-22 John Christiansen System
US7734474B2 (en) * 2004-04-23 2010-06-08 Hewlett-Packard Development Company, L.P. Display configuration
US20060095453A1 (en) * 2004-10-29 2006-05-04 Miller Mark S Providing a user a non-degraded presentation experience while limiting access to the non-degraded presentation experience
US8059835B2 (en) * 2004-12-27 2011-11-15 Emmanuel Thibaudeau Impulsive communication activated computer control device and method
DE602006006967D1 (de) 2006-02-24 2009-07-09 Vestel Elekt Sanayi Ve Ticaret Vorrichtung und Verfahren zur Einstellung der Bildeigenschaften auf einer Anzeigevorrichtung
JP2010511986A (ja) * 2006-12-08 2010-04-15 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ アンビエント照明
WO2008072133A2 (en) * 2006-12-11 2008-06-19 Koninklijke Philips Electronics N.V. Ambient system and method of controlling the ambient system
DE602007013106D1 (de) 2006-12-20 2011-04-21 Koninkl Philips Electronics Nv System, verfahren und computerlesbares medium zum anzeigen von lichtstrahlung
JP5240295B2 (ja) * 2008-10-15 2013-07-17 パナソニック株式会社 輝度補正装置及び輝度補正方法
JP2010181779A (ja) * 2009-02-09 2010-08-19 Mitsubishi Electric Corp 画像表示装置
JP5136600B2 (ja) * 2010-06-18 2013-02-06 三菱電機株式会社 画像表示装置
CN103514926B (zh) * 2012-06-29 2017-07-21 富泰华工业（深圳）有限公司 测试系统及测试方法
EP2911389B1 (en) 2014-02-19 2018-05-30 Televic Rail NV System for controlling a colour scheme on a display
US11587526B2 (en) 2018-12-20 2023-02-21 Dolby Laboratories Licensing Corporation Luminance adaption to minimize discomfort and improve visibility
CN119676512A (zh) * 2019-01-09 2025-03-21 杜比实验室特许公司 具有环境光补偿的显示器管理

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3165582A (en) * 1961-12-29 1965-01-12 Magnavox Co Automatic contrast and brilliance control system for television receivers
US3814852A (en) * 1972-11-27 1974-06-04 Magnavox Co Ambient light responsive control of brightness, contrast and color saturation
US4181915A (en) * 1978-03-27 1980-01-01 Rca Corporation LED Channel number display responsive to ambient light level
WO1990006035A1 (en) 1988-11-17 1990-05-31 Matsushita Electric Industrial Co., Ltd. Picture receiver controller
US5532848A (en) * 1992-11-25 1996-07-02 Canon Information Systems, Inc. Method and apparatus for adjusting correlated color temperature
AU5856194A (en) * 1993-02-05 1994-08-29 Barath, Ludwig Environment-dependent automatic luminance control for display scrreens
BE1007608A3 (nl) * 1993-10-08 1995-08-22 Philips Electronics Nv Beeldsignaalverbeteringsschakeling.
BE1007777A3 (nl) * 1993-11-23 1995-10-17 Philips Electronics Nv Niet-lineaire signaalverwerking.
KR0177937B1 (ko) * 1994-08-04 1999-05-01 구자홍 영상표시기기의 영상 자동 보정 장치와 방법
JPH0993451A (ja) * 1995-09-27 1997-04-04 Sony Corp 画像処理方法及び画像処理装置

Also Published As

Publication number Publication date
WO1999004562A1 (en) 1999-01-28
KR20000068548A (ko) 2000-11-25
US6229577B1 (en) 2001-05-08
EP0925683A1 (en) 1999-06-30
DE69828680D1 (de) 2005-02-24
DE69828680T2 (de) 2006-01-05
JP2001502875A (ja) 2001-02-27
EP0925683B1 (en) 2005-01-19

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