Dynamic sense-refresh detector amplifier
CA 1089542 A · Owner: Western Electric Company, Incorporated · Inventors: Wilson, Dennis R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A dynamic sense-refresh detector amplifier consists essentially of a cross coupled MOS transistor pair and two sets of load-refresh circuits which each include a capacitor and three MOS transistors. The loadrefresh circuits eliminate the negative effect of threshold voltage losses on noise margin by allowing the memory cells from which information is read out and sensed to be refreshed to full "1" and "0" levels. The dynamic operation of the amplifier allows for relatively low power dissipation.
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
- Granted November 11, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 11, 1997.
- 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.