Digital communications network with unlimited channel expandability
CA 2041202 C · Owner: Rockwell International Corporation · Inventors: Nguyen, Quoc
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A digital communication network (10) with a TSnT configuration defined by a first, or input time stage (12), a, second, or output, time stage (14) and a preselected number of space stages (16, 22, 24) interconnected between the time stages 12, 14) that introduce time delays which are compensated for by means for time shifting the data in a shadow memory (32) relative to data in a regular memory (34). On-line expansion is accomplished by operating the network (10) from one of the regular memory and the shadow memory (32) during the expansion introducing the amount of compensation required by the expansion and then shifting operation over to the other memory. The selection between memories …
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 30, 1991 and granted October 15, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 30, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 2013.
- 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.