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Method and apparatus for performance improvement by qualifying pulses in an oversampled, noise-shaping signal processor

CA 2296251 A1 · Owner: Tripathi, Adya S. · Inventors: Tripathi, Adya S.; Delano, Cary L.

CIPO record

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Abstract From the Canadian patent

An oversampled, noise shaping signal processor (300) is described having at least one integrator stage (306) in the loop. A sampling stage (310) is connected coupled to the at least one integrator stage. The sampling stage samples an analog signal at a sample frequency. Qualification logic (318) coupled to the sampling stage receives a pulse waveform therefrom and ensures , that signal transitions in the pulse waveform occur more than a first time period apart and that the waveform can therefore be handled by for example, a , power switching device (312). A switching stage (312) in the loop is coupled to the qualification logic. The signal processor (300) has a feedback path from the …

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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 July 20, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 20, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 20, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 20, 1998
GrantedNo grant recorded
Term endedJuly 20, 2018
Patent numberCA 2296251 A1
Classification (IPC)H04B14/06 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJuly 20, 1998Term endedJuly 20, 2018

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.