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Expired Canadian patentCanada

Method and system for extracting cardiac parameters from plethysmographic signals

CA 2816275 C · Owner: Adidas Ag · Inventors: Sackner, Marvin A.; Inman, Dana Michael

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Abstract From the Canadian patent

A system for generating a thoracocardiograph signal. The system comprises a first , digitizer for converting a first signal generated by an inductive plethysmographic sensor to a , digitized first signal. The system also comprises a first digital filter for transforming the digitized , first signal into a first filtered signal a lower corner frequency of the , first filter being dynamically adjusted based on a heart rate. The system further comprises a second digital filter , for transforming the first filtered signal into a thoracocardiograph signal. The second filter is , characterized by averaging segments of the first filtered signal based on events characteristic of , 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 March 24, 2003 and granted November 8, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 24, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 24, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 24, 2003
GrantedNovember 8, 2016
Term endedMarch 24, 2023
Patent numberCA 2816275 C
Classification (IPC)A61B5/02 +1 more

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2004200620082010201220142016201820202022Application filedMarch 24, 2003Patent grantedNov 8, 2016Term endedMarch 24, 2023

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