Control store checking system and method
CA 1081853 A · Owner: Honeywell Information Systems Inc. · Inventors: Parmet, Arthur A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A control store system provides for automatic detection of errors produced by faults in the circuits of the system during both normal and test operations. The system includes a control store and associated address and control circuits. The address and control circuits include a plurality of control address registers and an incrementing circuit. Each storage location of the control store includes a previously generated parity check bit which represents odd parity for the address corresponding to the nest sequential storage location. Each of the control registers couples to a parity check circuit. Each time the contents of a storage location within the control store memory are accessed the …
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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 July 15, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 15, 1997.
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Timeline
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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.