Built-in self-test control network
CA 2092333 C · Owner: American Telephone And Telegraph Company · Inventors: Yau, Chi Wang; Zorian, Yervant
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Control of the self-testing of a plurality of elements (12 1 -12 m) each, having a Built-In, Self-Test (BIST) capability and arranged in one or more groups, (14 1 -14 n) is carried out by a network (16) of one or more standard BIST resource interface controllers (SBRICs 18 1 - 18 n). Each SBRIC in the network controls the self-testing of the elements in a separate one of the groups in sequence by broadcasting a test command to the elements in parallel which in response, generate, test signatures stored by the SBRIC. The SBRICs in the network are coupled in series in daisy chain fashion to enable the test signatures stored by the SBRICs to be concatenated for easy retrieval by shifting out …
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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 March 24, 1993 and granted April 20, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 24, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 24, 2015.
- 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.