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Expired Canadian patentCanada

Addresses generation for interleavers in turbo encoders and decoders

CA 2507620 C · Owner: Ettorre, Donato · Inventors: Ettorre, Donato

CIPO record

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Abstract From the Canadian patent

An arrangement for generating addresses for interleaving/de-interleaving sequences (X1, X2, X3, ... XK) including a given number (K) of items wherein , each value for said given number (K) identifies a corresponding set of interleaving parameters (R, C, p, v). The arrangement comprises at least one memory unit (22) wherein a plurality of records are stored each record being , indicative of a respective set of parameters (R C, p, v) corresponding to at , least one value for said given number (K). Sets of interleaving parameters (R C, p, v) are thus available in the memory unit (22) to be promptly and directly retrieved for all possible values of said given number of items (K). A …

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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 December 16, 2002 and granted April 15, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 16, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 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.
FiledDecember 16, 2002
GrantedApril 15, 2014
Term endedDecember 16, 2022
Patent numberCA 2507620 C
Classification (IPC)H03M13/29 +1 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedDec 16, 2002Patent grantedApril 15, 2014Term endedDec 16, 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.