Method and apparatus for generating compact transcoding hints metadata
CA 2374067 C · Owner: Kuhn, Peter · Inventors: Kuhn, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An audio/video (or audiovisual, "A/V") signal processing apparatus and method for extracting a compact representation of a multimedia description and transcoding hints metadata for transcoding between different (e.g. MPEG) compressed content representations, manipulating (e.g. MPEG compressed) bitstream parameters such as frame rate bit rate, session size, quantization , parameters and picture coding type structure (e.g. group of pictures or , "GOP"), classifying A/V content, and retrieving multimedia information.
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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 13, 2001 and granted September 25, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 13, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 2023.
- 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
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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.