Oversampling a/d converter comprising an additional capacitor switched in synchronism with switching of an input capacitor
CA 1289250 C · Owner: Nec Corporation · Inventors: Kuraishi, Yoshiaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Besides an input switched capacitor (14) for sampling an input analog signal into output electric charges an oversampling, analog-to-digital converter comprises an additional switched capacitor (47) for sampling, into additional electric charges in synchronism with the input switched capacitor controlled, electric charges produced by a capacitor array (24) which is coupled to a reference voltage source (23) and is controlled by a predetermined number of control signals produced by a control logic (22) in response to an output digital signal. A summing circuit delivers the output and the additional electric charges to an integrator (15) connected to a quantizer (21) which produces a …
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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
- Granted September 17, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 17, 2008.
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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.