Error detecting method and apparatus for data communications
CA 2096912 C · Owner: Motorola, Inc. · Inventors: Schellinger, Michael J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A unique method and apparatus processes and validate Manchester-coded data transmitted on a communications channel and containing a synchronization word and a data word including a plurality of a data bits and coded according to a predetermined BCH error correcting code. Each data bits has a binary state determined by left half non-return-to zero (NRZ) bit sample and right half NRZ bit sample. The method for processing such data includes the steps of receiving a data work from the communications channel; checking the right half NRZ bit sample of the receive data word according to the predetermined error correcting code to detect the number of erroneous bit (810); error correcting the right …
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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 May 25, 1993 and granted September 1, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 25, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 25, 2015.
- 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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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.