Error correction system capable of correcting an error in a packet header by the use of a reed-solomon code
CA 2037527 C · Owner: Okuyama, Hideki · Inventors: Okuyama, Hideki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In an error correcting system for use in transmitting a packet from a transmitter to a receiver a packet header is preceded by an input signal and is formed by a Reed-Solomon code in the transmitter by adding an error correcting code to a header information signal. In the receiver, a plurality of syndromes are calculated by a syndrome calculator in response to the packet header to detect whether or not at least one error is included in the packet header. On detection of at least one error an error, correction circuit is energized in accordance with a program to locate and to correct the at least one error on the basis of procedure determined for correction of the Reed-Solomon code and may …
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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 March 4, 1991 and granted May 25, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 4, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 4, 2013.
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Timeline
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.