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Expired Canadian patentCanada

Method and apparatus for simultaneously retrieving portions of a data stream from different channels

CA 2399243 C · Owner: Thomson Licensing · Inventors: Pugel, Michael Anthony

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An apparatus and method for simultaneously processing each of a plurality of carrier signals having data modulated thereon wherein a complete data stream is formed by extracting at least portions of at least two of the modulated signals and combining the extracted portions. Each of the portions of the complete data stream comprises a plurality of packets having associated with them respective stream identification and sequence codes where the stream identification identifies the complete bit stream to be formed and the sequence codes identify the order or position within the complete bitstream that the associated data packets should be inserted.

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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 22, 2002 and granted December 20, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 22, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 22, 2024.
  • 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 22, 2002
GrantedDecember 20, 2011
Term endedAugust 22, 2022
Patent numberCA 2399243 C
Classification (IPC)H04L5/06 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedAug 22, 2002Patent grantedDec 20, 2011Term endedAug 22, 2022

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