DE69111624D1 - Schaltung zur Konturenbetonung eines Farbsignals. - Google Patents

Schaltung zur Konturenbetonung eines Farbsignals.

Info

Publication number: DE69111624D1
Authority: DE; Germany
Prior art keywords: emphasizing; contours; circuit; color signal; color
Prior art date: 1990-01-19
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 - Fee Related

Application number

DE69111624T

Other languages

English (en)

Other versions

DE69111624T2 (de

Inventor

Mitsumo Kawano

Tadashi Terada

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Toshiba Corp

Original Assignee

Toshiba Corp

Priority date (The priority date 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 date listed.)

1990-01-19

Filing date

1991-01-18

Publication date

1995-09-07

1991-01-18 Application filed by Toshiba Corp filed Critical Toshiba Corp

1995-09-07 Publication of DE69111624D1 publication Critical patent/DE69111624D1/de

1996-01-18 Application granted granted Critical

1996-01-18 Publication of DE69111624T2 publication Critical patent/DE69111624T2/de

2011-01-19 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

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
- 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
- H04N5/142—Edging; Contouring
- 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
- 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
- H04N9/648—Video amplifiers
- 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

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Processing Of Color Television Signals (AREA)
Picture Signal Circuits (AREA)

DE69111624T 1990-01-19 1991-01-18 Schaltung zur Konturenbetonung eines Farbsignals. Expired - Fee Related DE69111624T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP2008225A JPH03214885A (ja)	1990-01-19	1990-01-19	色信号の輪郭強調回路

Publications (2)

Publication Number	Publication Date
DE69111624D1 true DE69111624D1 (de)	1995-09-07
DE69111624T2 DE69111624T2 (de)	1996-01-18

Family

ID=11687231

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69111624T Expired - Fee Related DE69111624T2 (de)	1990-01-19	1991-01-18	Schaltung zur Konturenbetonung eines Farbsignals.

Country Status (5)

Country	Link
US (1)	US5191407A (de)
EP (1)	EP0439297B1 (de)
JP (1)	JPH03214885A (de)
KR (1)	KR940009480B1 (de)
DE (1)	DE69111624T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5350908A (en) *	1992-06-30	1994-09-27	Allen-Bradley Company, Inc.	Automatic gain control circuit having disturbance cancellation capabilities
US5349390A (en) *	1992-09-22	1994-09-20	U.S. Philips Corporation	Picture signal processor for performing both large area and small area contrast reduction, and picture display apparatus incorporating such a picture signal processor
US6091301A (en) *	1996-06-03	2000-07-18	Scientific-Atlanta, Inc.	Flatness compensation of diplex filter roll-off using active amplifier peaking circuit
DE19639572A1 (de) *	1996-09-26	1998-04-02	Philips Patentverwaltung	Verfahren und Anordnung zur Farbkantenversteilerung

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3515804A (en) *	1967-05-15	1970-06-02	Us Air Force	Video automatic gain control system for maintaining constant background noise level
DE2326620C3 (de) *	1973-05-25	1979-08-02	Robert Bosch Gmbh, 7000 Stuttgart	Schaltungsanordnung zur Erzeugung eines Korrektursignals für die Aperturkorrektur von Videosignalen
US4090217A (en) *	1976-08-23	1978-05-16	Gte Laboratories Incorporated	Automatic sharpness control circuit for a television receiver
JPS5380913A (en) *	1976-10-16	1978-07-17	Toshiba Corp	Singnal processing circuit
JPS5419323A (en) *	1977-07-13	1979-02-14	Matsushita Electric Ind Co Ltd	Automatic gain control system
DE2855880C2 (de) *	1978-12-23	1982-09-16	Philips Patentverwaltung Gmbh, 2000 Hamburg	Schaltungsanordnung mit einem regelbaren Verstärker
JPS57145484A (en) *	1981-03-05	1982-09-08	Oki Electric Ind Co Ltd	Agc system of video signal
US4400721A (en) *	1981-07-13	1983-08-23	Albert Macovski	Transition system for color television receivers
DE3223580A1 (de) *	1982-06-24	1983-12-29	Philips Patentverwaltung Gmbh, 2000 Hamburg	Schaltungsanordnung zum erhoehen der schaerfe von farbkanten
DE3541103C1 (de) *	1985-11-21	1986-12-18	Philips Patentverwaltung Gmbh, 2000 Hamburg	Schaltungsanordnung zum Erhoehen der Schaerfe von Farbkanten
JPH0236677A (ja) *	1988-07-26	1990-02-06	Sharp Corp	Ａｇｃ回路
US4989074A (en) *	1988-09-27	1991-01-29	Matsushita Electric Industrial Co., Ltd.	Digital automatic gain control apparatus

1990
- 1990-01-19 JP JP2008225A patent/JPH03214885A/ja active Pending
1991
- 1991-01-15 US US07/641,547 patent/US5191407A/en not_active Expired - Fee Related
- 1991-01-16 KR KR1019910000595A patent/KR940009480B1/ko not_active IP Right Cessation
- 1991-01-18 DE DE69111624T patent/DE69111624T2/de not_active Expired - Fee Related
- 1991-01-18 EP EP91300410A patent/EP0439297B1/de not_active Expired - Lifetime

Also Published As

Publication number	Publication date
KR940009480B1 (ko)	1994-10-13
EP0439297A1 (de)	1991-07-31
KR910015181A (ko)	1991-08-31
JPH03214885A (ja)	1991-09-20
US5191407A (en)	1993-03-02
DE69111624T2 (de)	1996-01-18
EP0439297B1 (de)	1995-08-02

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Legal Events

Date	Code	Title	Description
1996-08-29	8364	No opposition during term of opposition
1999-02-18	8339	Ceased/non-payment of the annual fee