Method and apparatus for providing error correction
CA 2329419 A1 · Owner: Hanko, James G. · Inventors: Ruberg, Alan T.; Hanko, James G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is directed to an error correction scheme used in a computer system where data is provided from a service to a terminal. The data is dynamically changing, and the user is interested more in a final or current state of the data than in intermediate states. Data is provided in a stream of blocks with sequential "sequence" numbers associated with each block. The invention assumes that the data provider transmits data blocks in order of sequence. The terminal tracks the sequence numbers of incoming blocks. When the terminal finds that one or more blocks have been skipped or are missing the terminal sends a request to the central source for update data. Unlike prior art …
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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 April 20, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 20, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 20, 2021.
- 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.