Low power wired or
CA 2428449 A1 · Owner: Croft, Walter E. · Inventors: Croft, Walter E.; Henderson, Alex E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A low power wired OR circuit of the present invention comprises a plurality of logic blocks for pulling a wired OR signal line low in response to certain conditions, a differential pair of lines such as the wired OR signal line and , a reference signal line and a sensing device coupled to the reference signal line and the wired OR signal line to receive the wired OR signal and the reference signal respectively and to detect a difference between the two signals. Having a differential pair of lines is advantageous because it maintains noise immunity for small voltage swings on the wired OR signal line thereby reducing power dissipation in the wired OR circuit. A common current source …
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 November 9, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 9, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 9, 2023.
- 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.