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Expired Canadian patentCanada

Apparatus for decoding bose-chanhuri-hocqueghem code for correcting complex errors

CA 2011103 C · Owner: Asai, Kohtaro · Inventors: Inoue, Touru; Murakami, Tokumichi; Yamagishi, Atsuhiro

CIPO record

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Abstract From the Canadian patent

An apparatus for decoding a received BCH code signal for correcting a combined complex error is disclosed which includes a syndrome generating circuit for generating two n-bit syndromes corresponding to the received signal a, syndrome converting circuit for converting the two n-bit syndromes to a 2n-bit syndrome. a random error correcting circuit, a burst error correcting circuit two combining, circuits and output selecting circuit. The random error correcting circuit inputs the two n-bit syndromes and outputs a random error correction signal to one of the combining circuits and the burst error correcting circuit inputs the 2n-bit syndrome and outputs a burst error correction signal to the …

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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 February 26, 1990 and granted January 2, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 26, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 26, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 26, 1990
GrantedJanuary 2, 1996
Term endedFebruary 26, 2010
Patent numberCA 2011103 C
Classification (IPC)H04L1/00 +1 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedFeb 26, 1990Patent grantedJan 2, 1996Term endedFeb 26, 2010

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