Device and method for carrying out reed-solomon encoding
CA 2252182 C · Owner: Tezuka, Hiroshi · Inventors: Tezuka, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a Reed-Solomon encoding device which produces for, example, a Reed-Solomon code of 4 bytes for a data signal of 16 bytes, the Reed-Solomon encoding device includes a signal separating circuit (100) which separates the input signal into two signals A and B which are successively outputted in a time division fashion. In synchronism with the output of these signals, an octal counter (1) is counted up. In response to the two separated signals outputted from the signal separating circuit (100), coefficients of respective terms of a remainder obtained by dividing the data signal by a generator polynomial are classified into even-number order ones and odd-number order ones to be calculated in …
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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 October 29, 1998 and granted April 30, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 29, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.