Method and apparatus for linearizing the output of a digital-to-analog converter
CA 2019237 A1 · Owner: Agilent Technologies, Inc. · Inventors: Blackham, Raymond C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, Distortion in a digital-to-analog converter (DAC) is eliminated by adding a digital random number to each sample of the digital signal, converting the sum into analog form, and subtracting from this analog sum the analog counterpart of the digital random number. The result is the analog counterpart to the input digital signal. The conversion of the summed digital signal and the random number into analog form can be performed by two conventional DACs. For any digital input sample, the output of each DAC is equally likely to contain any of the possible distortion errors produced by that DAC. (An exception is the most significant output bit of the DAC that processes …
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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 June 18, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 18, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 2012.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.