Sensor detection signal extracting circuit
CA 2086875 A1 · Owner: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho · Inventors: Tateishi, Tetsuo; Tateishi, Tetuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
18, Abstract, A sensor detection signal extracting circuit comprises a sensor, a control voltage generator an, adder, an amplifier, and a low-pass filter. The control voltage generator comprises two input terminals to one of which a voltage is applied based on the voltage source of the sensor. The output of the control voltage generator is added to the output of the sensor by the adder. The output of the adder is amplified by the amplifier, and its output is outputted to the output terminal and applied to the other input terminal of the control voltage generator through the low-pass filter. As a result two loop, systems are formed, that is, one loop for offsetting the change in a voltage of …
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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 January 7, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 7, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 7, 2015.
- 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.