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Expired Canadian patentCanada

Method and system for modeling the relationship of the bit rate of a transport stream and the bit rate of an elementary stream carried therein

CA 2535453 C · Owner: Tandberg Television, Inc. · Inventors: Xiao, Shu; Balakrishnan, Jeyendran

CIPO record

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Abstract From the Canadian patent

A method and system are disclosed for controlling the generation of a systems layer stream, such as a transport stream that carries a program made up of at , least one elementary stream such as an encoded audio signal or an encoded video signal. The systems layer stream is made up of serial segments such as , packets, which contain information specific to the systems layer such as , headers, and segments of elementary stream data. The bit rate of one or more of the elementary streams is adapted in accordance with a dynamically changing relation that relates the bit rate of such elementary streams to the bit rate of the portion of the systems layer stream that carries them.

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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 August 12, 2004 and granted April 15, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 12, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 12, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 12, 2004
GrantedApril 15, 2014
Term endedAugust 12, 2024
Patent numberCA 2535453 C
Classification (IPC)H04N21/23 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedAug 12, 2004Patent grantedApril 15, 2014Term endedAug 12, 2024

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.