Automatic synchronization switch for side-by-side displays
CA 2110003 C · Owner: Lendaro, Jeffery Basil · Inventors: Lendaro, Jeffery Basil
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A video display system comprises a video display for simultaneously displaying pictures representative of first and second video signals. A synchronizing circuit selectably synchronizes the video display with either one of the first and second video signals. A horizontal synchronizing component is separated from the first video signal and detected by a sensing circuit. A circuit for controlling the selectable synchronizing circuit is responsive to the sensing circuit. The video display is synchronized with the first video signal when the horizontal synchronizing component separated from the first video signal is sensed and is otherwise synchronized with the second video signal.
Read the whole patent
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 November 25, 1993 and granted July 7, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 25, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 25, 2015.
- 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.