CA2086777A1 - Systeme de correction de signaux video - Google Patents
Systeme de correction de signaux videoInfo
- Publication number
- CA2086777A1 CA2086777A1 CA2086777A CA2086777A CA2086777A1 CA 2086777 A1 CA2086777 A1 CA 2086777A1 CA 2086777 A CA2086777 A CA 2086777A CA 2086777 A CA2086777 A CA 2086777A CA 2086777 A1 CA2086777 A1 CA 2086777A1
- Authority
- CA
- Canada
- Prior art keywords
- signal
- apl
- circuit
- corrected
- input
- 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
Links
- 238000001514 detection method Methods 0.000 abstract 1
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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/444—Diode used as protection means in an amplifier, e.g. as a limiter or as a switch
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
- Picture Signal Circuits (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP00192092A JP3208814B2 (ja) | 1992-01-09 | 1992-01-09 | 映像信号補正装置 |
JP04-001920 | 1992-01-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2086777A1 true CA2086777A1 (fr) | 1993-07-10 |
CA2086777C CA2086777C (fr) | 1998-11-17 |
Family
ID=11515031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002086777A Expired - Fee Related CA2086777C (fr) | 1992-01-09 | 1993-01-06 | Systeme de correction de signaux video |
Country Status (9)
Country | Link |
---|---|
US (1) | US5351141A (fr) |
EP (1) | EP0551189B1 (fr) |
JP (1) | JP3208814B2 (fr) |
KR (1) | KR0127896B1 (fr) |
CN (1) | CN1045149C (fr) |
AU (1) | AU642348B2 (fr) |
CA (1) | CA2086777C (fr) |
DE (1) | DE69310553T2 (fr) |
MY (1) | MY109041A (fr) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5267028A (en) * | 1988-08-26 | 1993-11-30 | Canon Kabushiki Kaisha | Solid state image pickup apparatus having luminance control |
US5487020A (en) * | 1993-01-18 | 1996-01-23 | Canon Information Systems Research Australia Pty Ltd. | Refinement of color images using reference colors |
JP3136850B2 (ja) * | 1993-07-28 | 2001-02-19 | 松下電器産業株式会社 | 映像信号の階調補正装置 |
BE1007609A3 (nl) * | 1993-10-08 | 1995-08-22 | Philips Electronics Nv | Kleurverzadigingscorrectie-inrichting. |
KR100255637B1 (ko) * | 1997-05-27 | 2000-05-01 | 윤종용 | 영상신호의휘도보정방법및그회로 |
EP0921691B1 (fr) * | 1997-12-04 | 2010-11-24 | Victor Company of Japan, Limited | Procédé et appareil pour le traitement de signaux vidéo |
EP1134698A1 (fr) | 2000-03-13 | 2001-09-19 | Koninklijke Philips Electronics N.V. | Appareil de vidéo avec moyens de modification d'histogramme |
US7034862B1 (en) * | 2000-11-14 | 2006-04-25 | Eastman Kodak Company | System and method for processing electronically captured images to emulate film tonescale and color |
JP4078649B2 (ja) | 2004-01-28 | 2008-04-23 | 日本ビクター株式会社 | 映像信号処理装置及び方法 |
KR100734356B1 (ko) * | 2004-10-12 | 2007-07-03 | 엘지전자 주식회사 | 영상처리방법 및 장치 |
JP2006203540A (ja) * | 2005-01-20 | 2006-08-03 | Toshiba Corp | 映像信号処理装置及び映像信号処理方法 |
KR100640063B1 (ko) * | 2005-02-18 | 2006-10-31 | 삼성전자주식회사 | 외부조도를 고려한 영상향상방법 및 장치 |
US8064691B2 (en) * | 2007-05-15 | 2011-11-22 | Creative Lifestyle, Inc. | Method for identifying color in machine and computer vision applications |
US8526717B2 (en) | 2007-05-15 | 2013-09-03 | Vision Interface Technologies, LLC | Rich color transition curve tracking method |
US9536322B1 (en) | 2007-05-15 | 2017-01-03 | Peter Harmon Smith | Implementation of multi-camera tracking applications using rich color transition curve target sequences |
CN101330564B (zh) * | 2007-06-21 | 2010-06-09 | 联詠科技股份有限公司 | 信号修正方法及其电路及图像信号修正方法及其电路 |
US8891865B2 (en) * | 2008-12-26 | 2014-11-18 | Nec Corporation | Image processing device, image processing method, and storage medium for performing a gradation correction operation in a color space |
US12081916B2 (en) | 2019-10-10 | 2024-09-03 | Maxell, Ltd. | Video display device and projector |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57118492A (en) * | 1980-12-25 | 1982-07-23 | Toshiba Corp | Color density control circuit |
US4430665A (en) * | 1981-12-14 | 1984-02-07 | Rca Corporation | Automatic video signal peaking and color control |
JPS58121881A (ja) * | 1982-01-14 | 1983-07-20 | Sony Corp | ビデオ信号の記録再生装置 |
JPS58156287A (ja) * | 1982-03-12 | 1983-09-17 | Pioneer Electronic Corp | 映像再生装置 |
JPS58161482A (ja) * | 1982-03-18 | 1983-09-26 | Victor Co Of Japan Ltd | カラ−映像信号処理回路 |
US4730665A (en) * | 1983-07-14 | 1988-03-15 | Technology Enterprises Company | Apparatus for cooling high-density integrated circuit packages |
JPS62227291A (ja) * | 1986-03-29 | 1987-10-06 | Toshiba Corp | 自動色飽和度制御装置 |
DE3629403C2 (de) * | 1986-08-29 | 1994-09-29 | Agfa Gevaert Ag | Verfahren zur Korrektur der Farbsättigung bei der elektronischen Bildverarbeitung |
JPS6367874A (ja) * | 1986-09-09 | 1988-03-26 | Matsushita Electric Ind Co Ltd | 自動利得制御回路 |
DE3809303A1 (de) * | 1988-03-19 | 1989-10-05 | Itt Ind Gmbh Deutsche | Schaltungsanordnung zur farbsaettigungseinstellung |
JPH01319386A (ja) * | 1988-06-21 | 1989-12-25 | Pioneer Electron Corp | カラーノイズ低減回路 |
JPH02288583A (ja) * | 1989-04-28 | 1990-11-28 | Matsushita Electric Ind Co Ltd | 映像信号処理装置 |
JPH0824379B2 (ja) * | 1989-06-02 | 1996-03-06 | 三洋電機株式会社 | 信号分離回路 |
DE3924336C2 (de) * | 1989-07-22 | 1998-12-03 | Philips Broadcast Television S | Schaltungsanordnung zur automatischen Korrektur der Farbbalance |
US5089882A (en) * | 1989-09-08 | 1992-02-18 | Mscl, Inc. | Processor for color video signals |
JPH03201697A (ja) * | 1989-12-27 | 1991-09-03 | Matsushita Electric Ind Co Ltd | 映像信号補正方法及び映像信号補正装置 |
DE4017881C2 (de) * | 1990-06-02 | 1998-07-23 | Philips Broadcast Television S | Verfahren und Anordnung zur Entsättigung von Farben bei der Wiedergabe von Farbfernsehsignalen |
JP2775997B2 (ja) * | 1990-06-05 | 1998-07-16 | 松下電器産業株式会社 | 映像信号の階調補正装置およびテレビジョン受像機 |
-
1992
- 1992-01-09 JP JP00192092A patent/JP3208814B2/ja not_active Expired - Fee Related
-
1993
- 1993-01-04 AU AU31021/93A patent/AU642348B2/en not_active Ceased
- 1993-01-05 MY MYPI93000007A patent/MY109041A/en unknown
- 1993-01-06 DE DE69310553T patent/DE69310553T2/de not_active Expired - Fee Related
- 1993-01-06 KR KR1019930000061A patent/KR0127896B1/ko not_active IP Right Cessation
- 1993-01-06 CA CA002086777A patent/CA2086777C/fr not_active Expired - Fee Related
- 1993-01-06 EP EP93300074A patent/EP0551189B1/fr not_active Expired - Lifetime
- 1993-01-06 US US08/001,529 patent/US5351141A/en not_active Expired - Lifetime
- 1993-01-07 CN CN93100714A patent/CN1045149C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0551189A2 (fr) | 1993-07-14 |
AU642348B2 (en) | 1993-10-14 |
CN1075586A (zh) | 1993-08-25 |
DE69310553D1 (de) | 1997-06-19 |
US5351141A (en) | 1994-09-27 |
CN1045149C (zh) | 1999-09-15 |
DE69310553T2 (de) | 1997-10-23 |
JPH05191824A (ja) | 1993-07-30 |
CA2086777C (fr) | 1998-11-17 |
EP0551189B1 (fr) | 1997-05-14 |
AU3102193A (en) | 1993-07-15 |
MY109041A (en) | 1996-11-30 |
EP0551189A3 (fr) | 1994-02-02 |
JP3208814B2 (ja) | 2001-09-17 |
KR0127896B1 (ko) | 1998-04-04 |
KR930017455A (ko) | 1993-08-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |