Video signal routing system
CA 2264396 A1 · Owner: Cooper, Alan Neal · Inventors: Bauerle, David W.; Fritz, Matthew John; Cooper, Alan Neal
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A video signal routing system for video signals which includes a video signal carrying line arranged in a loop beginning and ending at a signal multiplexer (160), a plurality of video cameras (111-114) electrically connected to the line at points spaced therealong, and a video output line connected to receive video signals from the cameras through the multiplexer for display. The system includes a synchronization signal insertion device (121) a code signal , insertion device (131) a duplicate synchronization signal insertion device (122), a duplicate code signal insertion device (132) a timing generator and , interface (150) for controlling both of the synchronization signal insertion …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed August 25, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 25, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 25, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.