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Expired Canadian patentCanada

Generation of user equipment identification specific scrambling code for the high speed shared control channel

CA 2596481 C · Owner: Shin, Sung-Hyuk · Inventors: Dick, Stephen G.; Shin, Sung-Hyuk; Bolourchi, Nader

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

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Abstract From the Canadian patent

A code is produce for use in scrambling or descrambling data associated with a high speed shared control channel (HS-SSCH) for a particular user equipment. A user identification of the particular user equipment comprises L bits. A 1/2 rate convolutional encoder processes at least the bits of the user identification by a 1/2 rate convolutional code to produce the code.

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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 May 5, 2003 and granted July 8, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 5, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 5, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 5, 2003
GrantedJuly 8, 2014
Term endedMay 5, 2023
Patent numberCA 2596481 C
Classification (IPC)H04B1/70

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedMay 5, 2003Patent grantedJuly 8, 2014Term endedMay 5, 2023

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