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Canadian application, no grantCanada

Adiabatic dynamic logic

CA 2117027 A1 · Owner: Dickinson, Alexander G. · Inventors: Dickinson, Alexander G.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Abstract, A novel family of adiabatic dynamic logic gates can have power*delay products at least an order of magnitude or more below that which was possible in previous families of logic gates. No complex circuitry or unusually configured devices are needed to implement this logic family. In particular this logic family, requires fewer devices and less area per logic gate as compared with ordinary CMOS logic circuitry. This is unlike previous reversible logic proposals which required large numbers of transistors per gate. This logic circuitry can operate from very low supply voltages and need not be optimized for a particular voltage. This logic does not suffer from crowbar currents usually …

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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 4, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 4, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 4, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 4, 1994
GrantedNo grant recorded
Term endedMarch 4, 2014
Patent numberCA 2117027 A1
Classification (IPC)H03K19/00 +1 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedMarch 4, 1994Term endedMarch 4, 2014

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.