Effecting video transitions between video streams
CA 2385519 A1 · Owner: Hatalsky, Jeffrey F. · Inventors: Fierke, John R.; Hatalsky, Jeffrey F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Combining first (72) and second (74) video streams into a combined output video stream (78) by using a gradient table (90) listing gradient values for pixels in a video frame to address a look up table (62) of key values and , combining pixel values of the first and second video streams based upon respective key values read from the look up table (62).
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 September 20, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 20, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 20, 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.