Synchronous processing circuit
CA 2392386 C · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Masumoto, Junji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
With the present invention, asynchronous processor circuit can be implemented with a simplified circuit by improving a display's synchronization stability, and by setting a pulse width of a vertical synchronizing signal to be integral multiple of that of the frequency of the horizontal synchronizing signal. In a synchronous processor circuit in FIG. L an LPF 1, receives an externally provided composite signal 5 and a vertical, synchronization separating signal 6 is separated therefrom; a 1/2 frequency divider circuit 4 outputs a vertical phase detection signal 9 obtained by dividing the frequency synchronization separating signal 6 into 1/2; a phase delay part 2 receives the composite …
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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 January 27, 2000 and granted April 1, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 27, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 27, 2022.
- 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.