Cache device
CA 2240634 C · Owner: Uesugi, Takahiko · Inventors: Uesugi, Takahiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cache device of the present invention has a path through which the desired data contained in block load data transferred from a main memory are delivered to a processing unit which required the desired data even when, cache access by an instruction for accessing the main memory results in a cache miss. This path is different from a path through which the desired data is read from a data array of the cache device when a cache hit occures. Namely the path in question neither contains a path from the main memory to the data array nor a path from the data array to a general purpose register which the processing unit can refer to, and allows the desired data delivered from the main memory to …
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 15, 1998 and granted August 13, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 15, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 15, 2020.
- 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.