DE69714186T2 - Schaltung zur Vergrösserung der Schärfe eines Videosignals - Google Patents
Schaltung zur Vergrösserung der Schärfe eines VideosignalsInfo
- Publication number
- DE69714186T2 DE69714186T2 DE69714186T DE69714186T DE69714186T2 DE 69714186 T2 DE69714186 T2 DE 69714186T2 DE 69714186 T DE69714186 T DE 69714186T DE 69714186 T DE69714186 T DE 69714186T DE 69714186 T2 DE69714186 T2 DE 69714186T2
- Authority
- DE
- Germany
- Prior art keywords
- sharpness
- increasing
- circuit
- video signal
- video
- 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 - Lifetime
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
- H04N5/205—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic
- H04N5/208—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic for compensating for attenuation of high frequency components, e.g. crispening, aperture distortion correction
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960049819A KR19980030425A (ko) | 1996-10-29 | 1996-10-29 | 윤곽 보정 회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69714186D1 DE69714186D1 (de) | 2002-08-29 |
DE69714186T2 true DE69714186T2 (de) | 2002-12-12 |
Family
ID=19479622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69714186T Expired - Lifetime DE69714186T2 (de) | 1996-10-29 | 1997-03-12 | Schaltung zur Vergrösserung der Schärfe eines Videosignals |
Country Status (5)
Country | Link |
---|---|
US (1) | US5847774A (de) |
EP (1) | EP0840501B1 (de) |
JP (1) | JP3943645B2 (de) |
KR (1) | KR19980030425A (de) |
DE (1) | DE69714186T2 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0818932B1 (de) * | 1996-07-09 | 1999-11-10 | STMicroelectronics S.r.l. | Schaltung zur Chrominanzübergangsverbesserung in Echtzeitvideoempfang |
JPH1117984A (ja) * | 1997-06-26 | 1999-01-22 | Sony Corp | 画像処理装置 |
JPH1146313A (ja) * | 1997-07-25 | 1999-02-16 | Fujitsu General Ltd | 輪郭強調回路 |
US20020047933A1 (en) * | 1998-04-03 | 2002-04-25 | Paul Vlahos | Edge enhancement correction for improved image quality |
JP3804595B2 (ja) * | 2002-08-15 | 2006-08-02 | ソニー株式会社 | 映像信号処理方法及び装置 |
TWI234398B (en) * | 2003-11-20 | 2005-06-11 | Sunplus Technology Co Ltd | Automatic contrast limiting circuit by spatial domain infinite impulse response filter and method thereof |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4069505A (en) * | 1977-01-19 | 1978-01-17 | Gte Sylvania Incorporated | Automatic peaking control circuitry for a video processing system |
US4350995A (en) * | 1981-04-20 | 1982-09-21 | Rca Corporation | Self-limiting video signal peaking circuit |
JPH0614707B2 (ja) * | 1984-08-31 | 1994-02-23 | オリンパス光学工業株式会社 | 撮像装置 |
IT1197198B (it) * | 1986-09-10 | 1988-11-30 | Mandelli Spa | Centro di lavorazione meccanica o macchina utensile con mezzi di montaggio e di traslazione della testa porta-mandrino perfezionati |
DE68922433T2 (de) * | 1988-05-18 | 1996-01-11 | Hitachi Ltd | Aporturkorrekturschaltung. |
JPH0720265B2 (ja) * | 1988-11-04 | 1995-03-06 | 三菱電機株式会社 | 映像信号処理回路 |
JP2907988B2 (ja) * | 1990-10-05 | 1999-06-21 | 株式会社日立製作所 | ワイドテレビジョン受信機 |
KR950006360B1 (ko) * | 1990-11-30 | 1995-06-14 | 니뽄 덴끼 가부시끼가이샤 | 논리형 콤 필터 및 크로마 신호 분리회로 |
KR950001577B1 (ko) * | 1992-02-21 | 1995-02-25 | 삼성전자주식회사 | 색분리 및 윤곽 보정회로 |
US5543859A (en) * | 1994-04-15 | 1996-08-06 | Matsushita Electric Industrial Co., Ltd. | Horizontal contour emphasizing signal processor |
-
1996
- 1996-10-29 KR KR1019960049819A patent/KR19980030425A/ko active IP Right Grant
-
1997
- 1997-03-12 EP EP97104096A patent/EP0840501B1/de not_active Expired - Lifetime
- 1997-03-12 DE DE69714186T patent/DE69714186T2/de not_active Expired - Lifetime
- 1997-03-19 JP JP06661397A patent/JP3943645B2/ja not_active Expired - Lifetime
- 1997-03-20 US US08/821,759 patent/US5847774A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
KR19980030425A (ko) | 1998-07-25 |
JP3943645B2 (ja) | 2007-07-11 |
EP0840501A1 (de) | 1998-05-06 |
JPH10145642A (ja) | 1998-05-29 |
US5847774A (en) | 1998-12-08 |
DE69714186D1 (de) | 2002-08-29 |
EP0840501B1 (de) | 2002-07-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8327 | Change in the person/name/address of the patent owner |
Owner name: DAEWOO ELECTRONICS CORP., SEOUL/SOUL, KR |
|
8364 | No opposition during term of opposition |