Memory drive device and method
CA 2013296 C · Owner: Kabushiki Kaisha Toshiba · Inventors: Nakashima, Tomoyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a memory drive device comprising a, semiconductor memory a memory control circuit for, controlling the operation of the memory the control, circuit including a reset terminal and operative to initialize the internal status when a reset signal of a predetermined level is applied to the reset terminal and, a main power supply for delivering a power to the memory and to the memory control circuit, the memory drive device comprises a comparator circuit for comparing a power feed voltage from the main power supply with a predetermined threshold voltage and for detecting that the power feed reaches predetermined voltage to output a detection signal, and a reset circuit responsive 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 March 29, 1990 and granted June 28, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 29, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 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.