Timer manager
CA 2219296 C · Owner: Fiacco, Peter · Inventors: Fiacco, Peter; Chau, Vi; Sullivan, Jennifer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for establishing a large number of EDTOV timers (TIMER 0-TIMER 2047), each determining when an event has failed to occur on an exchange of a communications protocol. Values for each timer are maintained as a timer array. The entire timer array is read at regular scan intervals by a state machine (102) and decremented by four associated hardware decrementers (113a-113d), four timers at one time. Active time values are read checked for , zero, decremented, and written back to the timer array. If a timer is detected as having timed out, then a value is logged into a time-out FIFO and "FF"h is written back into the timer. The invention uses dedicated hardware (101) …
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 April 26, 1996 and granted July 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 26, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 2018.
- 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.