Computer video demultiplexer
CA 1304519 C · Owner: Escom Ag · Inventors: Davis, Hedley C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A computer video demultiplexer for combining a plurality of low resolution, video input signals into a plurality of higher horizontal and vertical resolution video output signals. Control signals for the video demultiplexer are coded on non-displayed video scan lines which are uniquely addressable so that several demultiplexers operated from one video signal may control a number of high resolution peripheral devices.
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
- Granted June 30, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 2009.
- 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.