Oscillator with transient frequency response compensation
CA 2001208 A1 · Owner: Seymour, Colin J. · Inventors: Seymour, Colin J.; Seymour, Colin J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An oscillator circuit comprises an oscillator 10 a, modulator 11, a temperature compensation circuit 12 and a transient compensation circuit 13. The modulator 11 is provided with a further control input I3 coupled to receive a control signal VTC provided by the transient compensation circuit 13. The control signal VTC is effective to compensate the trasient frequency response of the oscillator 10 by having a variation, as a function of time, which causes an offset in the frequency response of the oscillator 10 which is substantially the inverse of the transient response it is intended to compensate. The signal VTC enables the frequency output of the oscillator 10 to stabilise rapidly within …
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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 October 23, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 23, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 23, 2011.
- 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.