Data processor for high-speed access to stack area data
CA 2018182 C · Owner: Miyazaki, Masaya · Inventors: Miyazaki, Masaya
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A data processor comprises a high-speed storage for storing data of a stack area a first, pointer for indicating a mapping position in the highspeed storage showing an address indicated by a stack pointer, a second pointer for indicating a mapping position in the high-speed storage showing an address indicated by a frame pointer, an arithmetic unit for operating a displacement designated by each instruction and the first and second pointers, and an update unit for updating the first pointer provided separately from an update unit for updating the stack pointer upon execution of a PUSH or POP instruction. Instructions for accessing data using the displacement from the stack pointer or 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
- Filed June 4, 1990 and granted February 1, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 4, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 4, 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.