Information storage apparatus
CA 1286411 C · Owner: Mitsubishi Denki Kabushiki Kaisha · Inventors: Matsuda, Fumio; Ozaki, Minoru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In an information storage apparatus having an errorcorrecting code, wherein digital information and check symbols are stored in groups of codewords which are divided into blocks of equal size and a synchronization field for data synchronization is added to each block a, detector detects errors in consecutive synchronization fields when the digital information is read and a flag-, setting circuit sets dropout flags when a signal from the detector indicates an error in consecutive synchronization fields. The flags are set from the last synchronization field that is correctly detected before the error up to the first synchronization field that is correctly detected after the error. In decoding …
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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 July 16, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 16, 2008.
- 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
Timeline From CIPO dates
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.