GB2291309B - Circuit for preserving a timing relationship and a circuit for selectively delaying a digital signal - Google Patents

Circuit for preserving a timing relationship and a circuit for selectively delaying a digital signal

Info

Publication number
GB2291309B
GB2291309B GB9518092A GB9518092A GB2291309B GB 2291309 B GB2291309 B GB 2291309B GB 9518092 A GB9518092 A GB 9518092A GB 9518092 A GB9518092 A GB 9518092A GB 2291309 B GB2291309 B GB 2291309B
Authority
GB
United Kingdom
Prior art keywords
circuit
preserving
digital signal
timing relationship
selectively delaying
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
GB9518092A
Other versions
GB2291309A (en
GB9518092D0 (en
Inventor
John Edward Liron
Leon J Stanger
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.)
Grass Valley Group Inc
Original Assignee
Grass Valley Group Inc
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
Priority claimed from US07/866,703 external-priority patent/US5440591A/en
Application filed by Grass Valley Group Inc filed Critical Grass Valley Group Inc
Publication of GB9518092D0 publication Critical patent/GB9518092D0/en
Publication of GB2291309A publication Critical patent/GB2291309A/en
Application granted granted Critical
Publication of GB2291309B publication Critical patent/GB2291309B/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
    • H04N5/268—Signal distribution or switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/06—Generation of synchronising signals
    • H04N5/067—Arrangements or circuits at the transmitter end
    • H04N5/073—Arrangements or circuits at the transmitter end for mutually locking plural sources of synchronising signals, e.g. studios or relay stations
    • H04N5/0736—Arrangements or circuits at the transmitter end for mutually locking plural sources of synchronising signals, e.g. studios or relay stations using digital storage buffer techniques
GB9518092A 1992-04-10 1993-04-05 Circuit for preserving a timing relationship and a circuit for selectively delaying a digital signal Expired - Fee Related GB2291309B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/866,703 US5440591A (en) 1992-04-10 1992-04-10 Switching apparatus for digital signals
GB9307092A GB2266026B (en) 1992-04-10 1993-04-05 Switching apparatus for digital signals

Publications (3)

Publication Number Publication Date
GB9518092D0 GB9518092D0 (en) 1995-11-08
GB2291309A GB2291309A (en) 1996-01-17
GB2291309B true GB2291309B (en) 1996-09-11

Family

ID=26302703

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9518092A Expired - Fee Related GB2291309B (en) 1992-04-10 1993-04-05 Circuit for preserving a timing relationship and a circuit for selectively delaying a digital signal

Country Status (1)

Country Link
GB (1) GB2291309B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1143715A1 (en) * 2000-03-29 2001-10-10 w + k VideoCommunication GmbH & Co. KG Asynchronous video switching method and system

Also Published As

Publication number Publication date
GB2291309A (en) 1996-01-17
GB9518092D0 (en) 1995-11-08

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Legal Events

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

Effective date: 20010405