Information processing system comprising a main memory having an area for memorizing a state signal related to a diagnosing operation
CA 2019150 C · Owner: Nec Corporation · Inventors: Iwata, Jun
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In an information processing system comprising a diagnosing unit (15) for carrying out, in response to an activation signal (17), a diagnosing operation on a main memory (10), a standard processor (11 or 12) and a, system controller (13), a state indication area (20) memorizes a state signal which is produced by a monitoring unit (18) monitoring the diagnosing unit to indicate whether the diagnosing operation is possible and impossible and which, when the diagnosing operation is impossible, makes a diagnosis control unit (19) control retry of the diagnosing operation. Through a request controller (27) operable as a read request supply unit, the state signal is read by a read request signal …
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 June 18, 1990 and granted January 11, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 18, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 2012.
- 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.