Multiple recent event age tracking method and apparatus
CA 2260608 C · Owner: Pmc-Sierra Ltd. · Inventors: Northcott, Philip Lyon
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of detecting an alarm indication signal in a bitstream when the detection criterion is that a specified event occurs less than a predetermined number of times in a sliding window of a specified number of time periods comprising: tracking the age of the most recent predetermined number of the specified events comparing the age to the specified number of time periods and generating an alarm if the age of any specified event is greater than or equal to the specified number of time periods.
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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 January 29, 1999 and granted September 2, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 29, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 29, 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.