Multitrack architecture for computer-based editing of multimedia sequences
CA 2200142 C · Owner: Discreet Logic Inc. · Inventors: Hermanson, David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multitrack architecture for computer-based editing of multimedia sequences is disclosed herein. The multimedia sequences are formed of a plurality of collated segments representing audio or video scenes. The architecture contains sequence tracks for ordering the segments of the multimedia sequence and process tracks for applying transformations and/or animations to some of these segments. The output of the process tracks may be supplied to other process tracks and/or to a sequence track. Scope controls are provided to determine which portion of the output of a process track is supplied to another process track and/or to a sequence track.
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 March 17, 1997 and granted January 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 17, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 17, 2019.
- 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.