Source follower storage cell and improved method and apparatus for iterative write for integrated circuit analog signal recording and playback
CA 2099500 C · Owner: Information Storage Devices, Inc. · Inventors: Simko, Richard T.; Blyth, Trevor
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Source follower storage cell and improved method and apparatus for iterative write for integrated circuit analog recording and playback which provides increased resolution in the stored signal and increased accuracy and stability of the storage and readout capabilities of the device. The storage cell is configured wherein the electrically alterable MOS storage device is connected in a source follower configuration, which provides a one to one relationship between the variation in the floating gate storage charge and the variation in the output voltage, and for high load resistance relative insensitivity, to load characteristics. The write process and circuitry provides a multi-iterative …
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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 December 26, 1991 and granted July 24, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 26, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 26, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.