Bitline precharge
CA 2345845 C · Owner: Lines, Valerie L. · Inventors: Ahmed, Abdullah; Ma, Peter P.; Lines, Valerie L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An architecture and method for fast precharge of bitlines in a densely packed dynamic content addressable memory is disclosed. The dynamic content addressable memory cells are arranged according to an open bitline architecture to obtain high packing density. The bitlines are precharged through equalization between every two adjacent open bitline pairs. More specifically a bitline and its adjacent neighbouring bitline on the same side of the bitline sense amplifiers are equalized at several locations along the bitlines such that they are equalized at high speed which is typically not available in open bitline architectures. Hence the adjacent bitlines are precharged in a manner similar to a …
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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 April 30, 2001 and granted March 27, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 30, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 2023.
- 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.