Low power content addressable memory architecture
CA 2384039 C · Owner: Perry, Douglas · Inventors: Vlasenko, Peter; Gillingham, Peter B.; Kim, Jin-Ki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A low power CAM architecture is disclosed. Matchlines of the CAM array are segmented into a main search portion and a main search portion. After issuing a search command a main search operation is conducted on the main search portion of the matchline. If the result of the main search is a match then the main search is subsequently conducted on the main search portion of the matchline. If the result of main search is a mismatch then the main-search is disabled, and consequently there is no power dissipation on the main search portion of the matchlines. Main search and main search operations can be pipelined to maintain high throughput with minimum latency. Power consumption is further …
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 April 30, 2002 and granted August 14, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 30, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 2024.
- 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.