Improved floating, balanced output circuit
CA 2388039 C · Owner: That Corporation · Inventors: Hebert, Gary K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A floating, balanced output stage maintains control of the common-mode output current in both output legs even when the differential voltage output is clipped. The circuit includes a pair of transconductance amplifier section (gm1) for providing a differential pair of output currents in response to the input voltage (Vin); an intermediate section (2-5) connected so as to generate an intermediate differential output voltage (V1 V2), across two outputs of , the intermediate section in response to the pair of output currents of the first transconductance amplifier; an output section (R5-R8) for generating the differential output voltage (Vout+, Vout-) in response to the pair of voltages …
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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 November 7, 2000 and granted October 4, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 7, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 7, 2022.
- 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.