Offset-compensated sample and hold arrangement and method for its operation
CA 2130467 A1 · Owner: Sierra Semiconductor B.V. · Inventors: Seesink, Petrus Hendrikus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Offset-compensated sample and hold arrangement to sample an input signal comprising at least an operational amplifier (A) a first, capacitor (C1), a second capacitor (C2) a first switch (S110), a second switch (S211) a third switch (S210), a fourth switch (S111), a fifth switch (S120), a sixth switch (S121) a seventh, switch (S220) and an eighth switch (S221) which switches, capacitors and operational amplifier are interconnected in such a way and may be switched in such a way that during an offset-compensation phase the output voltage will only experience a very small voltage change.
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 February 18, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 18, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 18, 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.