Digital video lan system
CA 2268238 A1 · Owner: Farrell, Jim · Inventors: Farrell, Jim; Navaratnam, Sayan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention discloses a digital video system for use in a LAN. The system comprises, a video digitizer for receiving and digitizing a plurality of analog video inputs. A mixer receives, the plurality of digitized video signals for spatially mixing the signals in real time into a single, frames of a predetermined n by m pixel images. The digitized images are coupled to a video, compressor for compressing each of the single frame images transmitting the images on a LAN, to a receiver. The receiver decompresses the transmitted images for near real time display. In a, preferred embodiment the compression used is wavelet compression.
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 April 6, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 6, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 6, 2021.
- 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.