Power-up detector for low power systems
CA 2260867 A1 · Owner: Exel Microelectronics, Inc. · Inventors: Sandhu, Bal S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A power-up reset detector circuit is described which uses the threshold voltages of NMOS and PMOS transistors (M7 and M8) to detect the power-up of integrated circuits, and uses a current mirror (M2 through M6) to track power supply and process variations.
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
- Filed July 24, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 24, 2019.
- 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.