KR0182262B1 - 색신호 인핸서 - Google Patents
색신호 인핸서 Download PDFInfo
- Publication number
- KR0182262B1 KR0182262B1 KR1019900015426A KR900015426A KR0182262B1 KR 0182262 B1 KR0182262 B1 KR 0182262B1 KR 1019900015426 A KR1019900015426 A KR 1019900015426A KR 900015426 A KR900015426 A KR 900015426A KR 0182262 B1 KR0182262 B1 KR 0182262B1
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- delay
- color
- circuit
- output
- Prior art date
Links
- 238000000034 method Methods 0.000 claims 2
- 230000003111 delayed effect Effects 0.000 claims 1
- 239000003623 enhancer Substances 0.000 abstract description 18
- 238000010586 diagram Methods 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000001629 suppression Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
-
- 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
- H04N9/646—Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
- Color Television Systems (AREA)
Abstract
Description
Claims (1)
- 색신호 처리 장치에 있어서, a) 크로마 입력 신호를 지연시켜 지연된 출력 신호를 생성하기 위한 제1지연수단; b) 제1지연수단의 상기 지연 출력 신호를 지연시키기 위해 제1지연수단에 연속하여 연결되는 제2지연수단; c) 제1지연수단의 입력 신호와 출력 신호 간의 제1차분을 얻기 위해 효과적으로 배치되는 제1감산 수단; d) 제2지연 수단의 입력 신호와 및 출력 신호 간의 차분을 얻기 위해 효과적으로 배치되는 제2감산 수단; e) 제1차분 신호를 처리하여 제1강조 신호를 얻기 위해 효과적으로 배치되는 제1 신호 처리 수단; f) 제2차분 신호를 처리하여 제2 강조 신호를 얻기 위해 효과적으로 배치되는 제2신호 처리 수단; g) 제1및 제2신호 처리 수단의 제1 및 제2 강조 신호를 가산하기 위해 효과적으로 배치되는 제1 가산 수단; 및 h) 제1 가산 수단의 가산된 강조 신호를 제1지연 수단의 출력 신호에 가산하기 위해 효과적으로 배치되는 제2 가산 수단을 포함하는 색신호 처리 장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1259440A JPH03121693A (ja) | 1989-10-04 | 1989-10-04 | 色信号エンハンサ |
JP89-259440 | 1989-10-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR910009107A KR910009107A (ko) | 1991-05-31 |
KR0182262B1 true KR0182262B1 (ko) | 1999-05-01 |
Family
ID=17334119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019900015426A KR0182262B1 (ko) | 1989-10-04 | 1990-09-28 | 색신호 인핸서 |
Country Status (5)
Country | Link |
---|---|
US (1) | US5159442A (ko) |
EP (1) | EP0421369B1 (ko) |
JP (1) | JPH03121693A (ko) |
KR (1) | KR0182262B1 (ko) |
DE (1) | DE69024306T2 (ko) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0514196B1 (en) * | 1991-05-16 | 1997-12-29 | Victor Company Of Japan, Ltd. | Picture quality improving apparatus for compensating contour of images |
DE4215007A1 (de) * | 1992-05-06 | 1993-11-11 | Nokia Deutschland Gmbh | Anordnung zur Übertragung von Farbfernsehsignalen mit einem Leuchtdichtesignal und wenigstens einem diesem zugeordneten Farbsignal |
DE19722358A1 (de) * | 1997-05-28 | 1998-12-03 | Thomson Brandt Gmbh | Verfahren zur Bearbeitung von Übergangsbereichen in einem Bildsignal |
GB9807211D0 (en) * | 1998-04-03 | 1998-06-03 | Nds Ltd | Filtering of digital video signals |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4041531A (en) * | 1974-07-05 | 1977-08-09 | Rca Corporation | Television signal processing apparatus including a transversal equalizer |
GB2069287B (en) * | 1980-01-30 | 1983-09-01 | Sony Corp | Decoding pal television signals |
US4402006A (en) * | 1981-02-23 | 1983-08-30 | Karlock James A | Image enhancer apparatus |
US4504853A (en) * | 1981-11-25 | 1985-03-12 | Faroudja Y C | Enhancement of quadrature modulated chroma by luminance or chroma transitions without chroma demodulation |
JPS58205379A (ja) * | 1982-05-25 | 1983-11-30 | Victor Co Of Japan Ltd | 垂直輪郭調整回路 |
JPS5961283A (ja) * | 1982-09-30 | 1984-04-07 | Victor Co Of Japan Ltd | 信号処理用フイルタ回路 |
US4706113A (en) * | 1985-02-18 | 1987-11-10 | Mitsubishi Denki Kabushiki Kaisha | Contour detecting filter device using PAL samples of composite video signals without separation of luminance signals therefrom |
JPS62221294A (ja) * | 1986-03-24 | 1987-09-29 | Sony Corp | クロマエンハンサ |
DE68922433T2 (de) * | 1988-05-18 | 1996-01-11 | Hitachi Ltd | Aporturkorrekturschaltung. |
US4935806A (en) * | 1988-12-30 | 1990-06-19 | Zenith Electronics Corporation | Chroma noise reduction and transient improvement |
-
1989
- 1989-10-04 JP JP1259440A patent/JPH03121693A/ja active Pending
-
1990
- 1990-09-28 KR KR1019900015426A patent/KR0182262B1/ko not_active IP Right Cessation
- 1990-10-01 US US07/591,467 patent/US5159442A/en not_active Expired - Lifetime
- 1990-10-03 EP EP90118906A patent/EP0421369B1/en not_active Expired - Lifetime
- 1990-10-03 DE DE69024306T patent/DE69024306T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH03121693A (ja) | 1991-05-23 |
EP0421369B1 (en) | 1995-12-20 |
DE69024306T2 (de) | 1996-05-15 |
EP0421369A2 (en) | 1991-04-10 |
KR910009107A (ko) | 1991-05-31 |
DE69024306D1 (de) | 1996-02-01 |
US5159442A (en) | 1992-10-27 |
EP0421369A3 (en) | 1991-11-06 |
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