CA2077013A1 - Apparatus for processing a video signal - Google Patents
Apparatus for processing a video signalInfo
- Publication number
- CA2077013A1 CA2077013A1 CA002077013A CA2077013A CA2077013A1 CA 2077013 A1 CA2077013 A1 CA 2077013A1 CA 002077013 A CA002077013 A CA 002077013A CA 2077013 A CA2077013 A CA 2077013A CA 2077013 A1 CA2077013 A1 CA 2077013A1
- Authority
- CA
- Canada
- Prior art keywords
- luminance
- chrome
- video signal
- video
- digital
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
- H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising
-
- 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
Abstract
Apparatus that is self-contained with video equipment, such as a video camera or video record/playback device, and which generates video signal adjustment data for use by video signal processing circuits that are included in such video equipment.
An input video signal is coupled to luminance and/or chrome digital signal processing circuits which are supplied with luminance or chroma adjustment control data, respectively, for subjecting the input video signal to predetermined luminance or chrome adjustment operations, thereby producing adjusted digital luminance and chrome signals, respectively. At least one of the adjusted digital luminance and chrome signals is sampled at preselected times; and the sampled digital signals are used by an adjustment control data generator for generating the luminance and/or chrome adjustment control data that are supplied to the luminance and/or chrome digital signal processing circuits.
An input video signal is coupled to luminance and/or chrome digital signal processing circuits which are supplied with luminance or chroma adjustment control data, respectively, for subjecting the input video signal to predetermined luminance or chrome adjustment operations, thereby producing adjusted digital luminance and chrome signals, respectively. At least one of the adjusted digital luminance and chrome signals is sampled at preselected times; and the sampled digital signals are used by an adjustment control data generator for generating the luminance and/or chrome adjustment control data that are supplied to the luminance and/or chrome digital signal processing circuits.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPP244524/91 | 1991-08-29 | ||
JP24452491A JP3303308B2 (en) | 1991-08-29 | 1991-08-29 | Video signal processing device |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2077013A1 true CA2077013A1 (en) | 1993-03-01 |
CA2077013C CA2077013C (en) | 2002-07-09 |
Family
ID=17119971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002077013A Expired - Lifetime CA2077013C (en) | 1991-08-29 | 1992-08-27 | Apparatus for processing a video signal |
Country Status (6)
Country | Link |
---|---|
US (1) | US5291276A (en) |
EP (1) | EP0530028B1 (en) |
JP (1) | JP3303308B2 (en) |
KR (1) | KR100268138B1 (en) |
CA (1) | CA2077013C (en) |
DE (1) | DE69220435T2 (en) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3647052B2 (en) * | 1993-04-15 | 2005-05-11 | キヤノン株式会社 | Imaging device |
JPH06335006A (en) * | 1993-05-19 | 1994-12-02 | Matsushita Electric Ind Co Ltd | Solid-state image pickup device |
JP3502423B2 (en) * | 1993-10-08 | 2004-03-02 | リーダー電子株式会社 | Signal processing circuit correction device |
JP3437664B2 (en) * | 1994-01-31 | 2003-08-18 | 東芝マイクロエレクトロニクス株式会社 | Signal generation circuit and method of adjusting image display device using the same |
JP3162908B2 (en) * | 1994-06-24 | 2001-05-08 | 三洋電機株式会社 | Video signal processing device |
JPH08317252A (en) * | 1995-05-16 | 1996-11-29 | Ikegami Tsushinki Co Ltd | Method and device for outline correction |
JP3971465B2 (en) * | 1995-06-08 | 2007-09-05 | ソニー株式会社 | Camera setup method and system |
JP3649841B2 (en) * | 1997-02-20 | 2005-05-18 | 三洋電機株式会社 | Single plate color camera |
US6141064A (en) * | 1997-05-08 | 2000-10-31 | Sony Corporation | Luminance signal generation circuit with single clamp in closed loop configuration |
US6137533A (en) * | 1997-05-14 | 2000-10-24 | Cirrus Logic, Inc. | System and method for enhancing dynamic range in images |
JPH11143379A (en) * | 1997-09-03 | 1999-05-28 | Semiconductor Energy Lab Co Ltd | Semiconductor display device correcting system and its method |
EP0926887A3 (en) * | 1997-12-22 | 2001-03-21 | Texas Instruments Inc. | Automatic gain and offset control of a video decoder analog front end |
JP3951413B2 (en) * | 1998-02-24 | 2007-08-01 | ソニー株式会社 | Exposure compensation device and imaging device |
KR100661368B1 (en) * | 1999-12-24 | 2006-12-27 | 삼성전자주식회사 | A method of controlling a gain of a video signal in a video display system |
JP4360724B2 (en) * | 2000-01-11 | 2009-11-11 | Hoya株式会社 | Signal switching device for electronic endoscope |
JP3561680B2 (en) * | 2000-07-14 | 2004-09-02 | 三洋電機株式会社 | Digital camera |
JP2003141442A (en) * | 2001-11-05 | 2003-05-16 | Nec Infrontia Corp | Bar code reader |
JP3880553B2 (en) * | 2003-07-31 | 2007-02-14 | キヤノン株式会社 | Image processing method and apparatus |
JP5395696B2 (en) * | 2010-02-10 | 2014-01-22 | 日本放送協会 | Video signal transmission device, transmission video signal generation program, video signal reception device, transmission video signal conversion program, and video signal transmission system |
JP2022121801A (en) * | 2021-02-09 | 2022-08-22 | パナソニックIpマネジメント株式会社 | Imaging apparatus, imaging method, imaging program and mobile body |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1979000717A1 (en) * | 1978-03-06 | 1979-10-04 | Rca Corp | Automatic setup system for television cameras |
JPS59100685A (en) * | 1982-11-30 | 1984-06-09 | Toshiba Corp | Color television camera device |
US4628362A (en) * | 1985-05-02 | 1986-12-09 | American Dynamics Corporation | Combined video AGC and digitizing circuit |
GB8521019D0 (en) * | 1985-08-22 | 1986-10-01 | Rank Pullin Controls Ltd | Imaging apparatus |
JP2553534B2 (en) * | 1986-12-26 | 1996-11-13 | 松下電器産業株式会社 | Television video signal controller |
JP3009207B2 (en) * | 1990-11-05 | 2000-02-14 | 株式会社日立製作所 | Digital white balance device |
-
1991
- 1991-08-29 JP JP24452491A patent/JP3303308B2/en not_active Expired - Lifetime
-
1992
- 1992-08-19 US US07/932,253 patent/US5291276A/en not_active Expired - Lifetime
- 1992-08-24 KR KR1019920015161A patent/KR100268138B1/en not_active IP Right Cessation
- 1992-08-27 CA CA002077013A patent/CA2077013C/en not_active Expired - Lifetime
- 1992-08-28 DE DE69220435T patent/DE69220435T2/en not_active Expired - Lifetime
- 1992-08-28 EP EP92307832A patent/EP0530028B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0564234A (en) | 1993-03-12 |
EP0530028A3 (en) | 1993-11-10 |
EP0530028A2 (en) | 1993-03-03 |
JP3303308B2 (en) | 2002-07-22 |
DE69220435T2 (en) | 1997-11-27 |
CA2077013C (en) | 2002-07-09 |
EP0530028B1 (en) | 1997-06-18 |
KR100268138B1 (en) | 2000-10-16 |
DE69220435D1 (en) | 1997-07-24 |
KR930005445A (en) | 1993-03-23 |
US5291276A (en) | 1994-03-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |