Cycling error count for link maintenance
CA 2064541 C · Owner: Mitel Networks Corporation · Inventors: Gray, Thomas A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of determining the reliability of data transmission system links is comprised of transmitting a data stream containing a data integrity sequence and at least one accumulated error count sequence along one of the links, determining the integrity of the data in the stream at the end of the link using the data integrity sequence adding a count, of data errors detected to the accumulated error count sequence, and periodically detecting the count as a measure of the reliability.
Read the whole patent
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 31, 1992 and granted September 15, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 31, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 31, 2014.
- 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.