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Canadian application, no grantCanada

Method and system for modulating a carrier frequency to support nondestructive bitwise arbitration of a communication medium

CA 2452425 A1 · Owner: Davenport, David · Inventors: Hoctor, Ralph; Soni, Mukesh; Davenport, David

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A system for modulating a carrier frequency to support nondestructive bitwise arbitration of a communication medium. The system comprises a first sensor module, (104) coupled to a power supply line (106) via a first power line coupling circuit, (108). The first sensor module (104) comprises a first micro-controller (210) and a, first transceiver (212). The first transceiver (212) includes a first transmitter (214) for, converting a digital signal received from the first micro-controller (210) into a first, analog signal for transmission over the power supply line (106). The first transmitter, (214) includes a first oscillator operating within an allowable frequency deviation to, …

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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 December 4, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 4, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 4, 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.
FiledDecember 4, 2003
GrantedNo grant recorded
Term endedDecember 4, 2023
Patent numberCA 2452425 A1
Classification (IPC)H04B3/54 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedDec 4, 2003Term endedDec 4, 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.