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Expired Canadian patentCanada

Data receiving device

CA 2437065 C · Owner: Nakahara, Hideki · Inventors: Nakahara, Hideki; Takai, Hitoshi; Tanaka, Koichiro

CIPO record

Overview

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

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Abstract From the Canadian patent

An object of the present invention is to provide a data receiving device enabling reduction in time required for extracting the partial band signal and capable of being easily made in a simple structure as an LSI device without requiring a plurality of analog circuits having the same characteristics A data receiving device 1 includes: a first sampler 100 for sampling an in-phase signal I(t) at every predetermined sampling period and outputting the sampled in-phase signal I(nT); a second sampler 101 for sampling a quadrature signal Q(t) at every said predetermined sampling period and outputting the sampled quadrature signal Q(nT); a partial band extracting section 102 structured by a complex …

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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 August 12, 2003 and granted April 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 12, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 12, 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.
FiledAugust 12, 2003
GrantedApril 10, 2012
Term endedAugust 12, 2023
Patent numberCA 2437065 C
Classification (IPC)H04L27/38 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedAug 12, 2003Patent grantedApril 10, 2012Term endedAug 12, 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.