Packet error indication method
CA 2180342 C · Owner: Wasilewski, Anthony J. · Inventors: Wasilewski, Anthony J.; Logston, Gary L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for providing packet error indication (62) in a multi-hop communications system (10) in which packets (17) of data are transmitted from a transmission site (14) to a reception site (32) via a plurality of successive physical links (22a 26a, 28a, 30a, 22b, 26b, 28b, 30b, 22c 26c, 28c, 30c). At the transmission, site a pre-defined bit (62) in a packet (16) to be transmitted is set to a first value indicating that no errors are present in the packet. Then at each successive physical link, after transmission of the packet over that link, the following steps are performed: detecting (82) whether any uncorrectable errors occurred in the packet during transmission over that link; if an …
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 July 11, 1994 and granted December 15, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 11, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 11, 2016.
- 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.