GB2254752B - Combining digital video signals - Google Patents

Combining digital video signals

Info

Publication number
GB2254752B
GB2254752B GB9107893A GB9107893A GB2254752B GB 2254752 B GB2254752 B GB 2254752B GB 9107893 A GB9107893 A GB 9107893A GB 9107893 A GB9107893 A GB 9107893A GB 2254752 B GB2254752 B GB 2254752B
Authority
GB
United Kingdom
Prior art keywords
digital video
video signals
combining digital
combining
signals
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
GB9107893A
Other versions
GB9107893D0 (en
GB2254752A (en
Inventor
Iain Michael Lloyd Davies
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.)
Alpha Image Ltd
Original Assignee
Alpha Image 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 Alpha Image Ltd filed Critical Alpha Image Ltd
Priority to GB9107893A priority Critical patent/GB2254752B/en
Publication of GB9107893D0 publication Critical patent/GB9107893D0/en
Publication of GB2254752A publication Critical patent/GB2254752A/en
Application granted granted Critical
Publication of GB2254752B publication Critical patent/GB2254752B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Circuits (AREA)
GB9107893A 1991-04-13 1991-04-13 Combining digital video signals Expired - Fee Related GB2254752B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9107893A GB2254752B (en) 1991-04-13 1991-04-13 Combining digital video signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9107893A GB2254752B (en) 1991-04-13 1991-04-13 Combining digital video signals

Publications (3)

Publication Number Publication Date
GB9107893D0 GB9107893D0 (en) 1991-05-29
GB2254752A GB2254752A (en) 1992-10-14
GB2254752B true GB2254752B (en) 1995-03-01

Family

ID=10693218

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9107893A Expired - Fee Related GB2254752B (en) 1991-04-13 1991-04-13 Combining digital video signals

Country Status (1)

Country Link
GB (1) GB2254752B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2155729A (en) * 1984-03-07 1985-09-25 Quantel Ltd Video signal combining system
US4698666A (en) * 1985-07-12 1987-10-06 The Grass Valley Group, Inc. Video key glow and border generator
EP0344976A1 (en) * 1988-05-31 1989-12-06 Crosfield Electronics Limited Image generating apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2155729A (en) * 1984-03-07 1985-09-25 Quantel Ltd Video signal combining system
US4698666A (en) * 1985-07-12 1987-10-06 The Grass Valley Group, Inc. Video key glow and border generator
EP0344976A1 (en) * 1988-05-31 1989-12-06 Crosfield Electronics Limited Image generating apparatus

Also Published As

Publication number Publication date
GB9107893D0 (en) 1991-05-29
GB2254752A (en) 1992-10-14

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19990413