System and method for combining multiple composite video signals
CA 2065461 C · Owner: Siann, Jonathan Ivan · Inventors: Siann, Jonathan Ivan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and method are provided for combining multiple composite video signals into a single output data stream synchronised with an output device. The system includes means for decoding incoming composite video signals into their constituent components, memory means for storing signals temporarily to synchronise such signals with the output device, and a multiplexor for combining the synchronised signals for application to the output device. An analogue to digital converter (ADC) is arranged to convert incoming composite video signals into digital form a digital memory is arranged to receive the digital output of the ADC, and a decoder is provided to sample the contents of this memory …
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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 April 21, 1992 and granted April 13, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 21, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 21, 2014.
- 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
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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.