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Expired Canadian patentCanada

Method and apparatus for error correction

CA 1196106 A · Owner: Sony Corporation · Inventors: Furuya, Tsuneo; Hori, Katsuya

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Abstract From the Canadian patent

TITLE OF THE INVENTION, "METHOD AND APPARATUS FOR ERROR CORRECTION" ABSTRACT OF THE DISCLOSURE, A method of error correction comprises error correction coding processing and interleaving and de-interleaving processings for digital subcoding data (as opposed to main data) in subchannels (as opposed to the main channel) to be transmitted. Apparatus is provided comprising means for performing those processings. The method for error comprises the steps of dividing digital subcoding data in one PACKET into a plurality of PACKs; adding a first redundant code for error detection or error correction to each of the PACKs; and interleaving the digital subcoding data in each of the PACKs and the first …

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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

  • Granted October 29, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 29, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 22, 1983
GrantedOctober 29, 1985
Term endedOctober 29, 2002
Patent numberCA 1196106 A
Classification (IPC)G11B5/09 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedApril 22, 1983Patent grantedOct 29, 1985Term endedOct 29, 2002

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