Fault tolerant computer system
CA 2339783 C · Owner: Telefonaktiebolaget Lm Ericsson · Inventors: Ronstrom, Mikael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Fault tolerant computer system and method requiring reduced inter-unit communications. A primary system is arranged to execute event processes in response to , received commands. Each time the execution of an event process is halted due , to normal , termination or an interrupt an event generator generates an event message indicating the , type of event process and the reason or timing for halting the event process. The event , message is used to instruct a backup system to execute the same event process. Since the , event message also specifies the reason and the timing for halting the event process, the , execution of the event process can be replicated at the backup system. Thus …
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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 August 9, 1999 and granted March 8, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 9, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 9, 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.