Field effect transistor limiter circuitry
CA 2012239 C · Owner: Sauer, Donald Jon · Inventors: Sauer, Donald Jon
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An amplifier/limiter circuit includes an amplifier providing an output signal having a potential range between ground and V D volts. A first pair of parallel connected complementary transistors have their principal conduction paths coupled between the output terminal of the amplifier and an amplifier/limiter output terminal. A second pair of parallel connected complementary transistors have their principal conduction paths coupled between the amplifier/limiter output terminal and a point of reference potential having a potential value between V D and ground. The amplifier/limiter output terminal provides a linear, amplified version of signal provided to the amplifier circuit over a limited …
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 March 15, 1990 and granted June 1, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 15, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 15, 2012.
- 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.