Fault tolerant ancillary messaging and recovery system and method within adigital switch
CA 1297593 C · Owner: Bell-Northern Research Ltd. · Inventors: Leuty, Stephen C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
System for collateral out-of-band-messaging within the distributed data processing environment in a digital switch which has mainstream inband data channels. The system comprises independent reset modules which decode, and recognize the out-of-band messages to effect emergency control functions of the distributed processors, such as resetting and jamming a malfunctioning processor.
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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
- Granted March 17, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 17, 2009.
- 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.