GB9507173D0 - Suppressing video signals - Google Patents

Suppressing video signals

Info

Publication number
GB9507173D0
GB9507173D0 GBGB9507173.4A GB9507173A GB9507173D0 GB 9507173 D0 GB9507173 D0 GB 9507173D0 GB 9507173 A GB9507173 A GB 9507173A GB 9507173 D0 GB9507173 D0 GB 9507173D0
Authority
GB
United Kingdom
Prior art keywords
video signals
suppressing video
suppressing
signals
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.)
Withdrawn
Application number
GBGB9507173.4A
Other versions
GB2299724A (en
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.)
DYNATECH CORP Ltd
Original Assignee
DYNATECH CORP 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 DYNATECH CORP Ltd filed Critical DYNATECH CORP Ltd
Priority to GB9507173A priority Critical patent/GB2299724A/en
Publication of GB9507173D0 publication Critical patent/GB9507173D0/en
Publication of GB2299724A publication Critical patent/GB2299724A/en
Withdrawn legal-status Critical Current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
    • H04N5/272—Means for inserting a foreground image in a background image, i.e. inlay, outlay
    • 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
    • H04N5/272—Means for inserting a foreground image in a background image, i.e. inlay, outlay
    • H04N5/275—Generation of keying signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
GB9507173A 1995-04-06 1995-04-06 Suppressing video signals Withdrawn GB2299724A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9507173A GB2299724A (en) 1995-04-06 1995-04-06 Suppressing video signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9507173A GB2299724A (en) 1995-04-06 1995-04-06 Suppressing video signals

Publications (2)

Publication Number Publication Date
GB9507173D0 true GB9507173D0 (en) 1995-05-31
GB2299724A GB2299724A (en) 1996-10-09

Family

ID=10772666

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9507173A Withdrawn GB2299724A (en) 1995-04-06 1995-04-06 Suppressing video signals

Country Status (1)

Country Link
GB (1) GB2299724A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7145573B2 (en) * 2003-12-19 2006-12-05 Texas Instruments Incorporated Method and system to combine a digital graphics object and a digital picture

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5146333A (en) * 1989-10-06 1992-09-08 The Grass Valley Group, Inc. Self keyer with pre-emphasized fill video
US4967277A (en) * 1989-10-06 1990-10-30 The Grass Valley Group, Inc. Non-linear keyer
US5051828A (en) * 1990-04-27 1991-09-24 The Grass Valley Group, Inc. Keyer with variable shaping

Also Published As

Publication number Publication date
GB2299724A (en) 1996-10-09

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)