Voltage detector for producing output signal without transient error level
CA 2063522 C · Owner: Ohshima, Yoshinobu · Inventors: Ohshima, Yoshinobu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A voltage detector monitors a power voltage level to see whether or not the power voltage level exceeds a predetermined voltage level, and comprises a reference voltage producing circuit for producing a reference voltage level proportional to the predetermined voltage level a, monitored voltage producing circuit for producing a monitored voltage level proportional to the power voltage level, a voltage comparator operative to compare the monitored voltage level with the reference voltage level for producing an output signal indicative of status of the power voltage level, and a combination of a clamping resistor and a clamping resistor provided in association with the voltage comparator for …
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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 19, 1992 and granted January 27, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 19, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 19, 2014.
- 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
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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.