DE68916728D1 - Farbvideosignalumtastung. - Google Patents

Farbvideosignalumtastung.

Info

Publication number
DE68916728D1
DE68916728D1 DE68916728T DE68916728T DE68916728D1 DE 68916728 D1 DE68916728 D1 DE 68916728D1 DE 68916728 T DE68916728 T DE 68916728T DE 68916728 T DE68916728 T DE 68916728T DE 68916728 D1 DE68916728 D1 DE 68916728D1
Authority
DE
Germany
Prior art keywords
video signal
color video
signal keying
keying
color
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 - Fee Related
Application number
DE68916728T
Other languages
English (en)
Other versions
DE68916728T2 (de
Inventor
Martin Gerald Snashall
Mark Richard Andrews
David Fraser Levy
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.)
Abekas Video Systems Ltd
Original Assignee
Abekas Video Systems Ltd
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.)
Filing date
Publication date
Application filed by Abekas Video Systems Ltd filed Critical Abekas Video Systems Ltd
Application granted granted Critical
Publication of DE68916728D1 publication Critical patent/DE68916728D1/de
Publication of DE68916728T2 publication Critical patent/DE68916728T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04N9/74—Circuits for processing colour signals for obtaining special effects
    • H04N9/75—Chroma key
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Studio Circuits (AREA)
DE68916728T 1988-09-21 1989-09-19 Farbvideosignalumtastung. Expired - Lifetime DE68916728T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888822162A GB8822162D0 (en) 1988-09-21 1988-09-21 Processing of colour video signals

Publications (2)

Publication Number Publication Date
DE68916728D1 true DE68916728D1 (de) 1994-08-18
DE68916728T2 DE68916728T2 (de) 1995-03-16

Family

ID=10643986

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68916728T Expired - Lifetime DE68916728T2 (de) 1988-09-21 1989-09-19 Farbvideosignalumtastung.

Country Status (7)

Country Link
US (1) US4979022A (de)
EP (1) EP0360557B1 (de)
JP (1) JPH02121478A (de)
CA (1) CA1310403C (de)
DE (1) DE68916728T2 (de)
ES (1) ES2058544T3 (de)
GB (1) GB8822162D0 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5182633A (en) * 1991-04-12 1993-01-26 Abekas Video Systems, Inc. Video sample rate converter
US5280343A (en) * 1992-01-21 1994-01-18 Eastman Kodak Company Separable subsampling of digital image data with general periodic symmetry
GB9400438D0 (en) * 1994-01-12 1994-03-09 Vistek Electronics Alias detection and avoidance process
US5808691A (en) * 1995-12-12 1998-09-15 Cirrus Logic, Inc. Digital carrier synthesis synchronized to a reference signal that is asynchronous with respect to a digital sampling clock
US6862368B1 (en) * 2000-01-12 2005-03-01 Koninklijke Philips Electronics N.V. Method and apparatus for edge detection
CN100450846C (zh) 2003-07-10 2009-01-14 本田技研工业株式会社 发动机驱动式工作机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3015932A1 (de) * 1980-04-25 1981-10-29 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zur steuerung eines digitalen farbfernsehsignals und schaltungsanordnung zur durchfuehrung des verfahrens
JPS5983488A (ja) * 1982-11-05 1984-05-14 Sony Corp クロマキ−装置
FR2582893B1 (fr) * 1985-06-04 1987-07-17 France Etat Circuit d'elaboration des signaux analogiques de couleurs primaires d'un signal de television a partir de ses composantes numeriques de luminance et de chrominance.
JPS62243481A (ja) * 1986-04-15 1987-10-23 Nec Corp 不要成分除去器
US4831447A (en) * 1987-11-16 1989-05-16 The Grass Valley Group, Inc. Method and apparatus for anti-aliasing an image boundary during video special effects

Also Published As

Publication number Publication date
GB8822162D0 (en) 1988-10-26
DE68916728T2 (de) 1995-03-16
JPH02121478A (ja) 1990-05-09
CA1310403C (en) 1992-11-17
EP0360557B1 (de) 1994-07-13
US4979022A (en) 1990-12-18
ES2058544T3 (es) 1994-11-01
EP0360557A2 (de) 1990-03-28
EP0360557A3 (de) 1991-01-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee