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Canadian application, no grantCanada

Apparatus and method for improving the efficiency of terrestrial facilities utilized by a wireless communications system between a base station and a mobile switching center

CA 2340517 A1 · Owner: Bujewski, Theodore Joseph · Inventors: Lee, Anne Yin-Fee; Bujewski, Theodore Joseph; Payne, Stephen Ewell

CIPO record

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Abstract From the Canadian patent

The present invention detects idle time durations of communications in the forward direction, reverse direction, or both directions of a wireless call in which, discontinuous transmission is invoked. Such events are exploited to reduce associated, data transmission on terrestrial facilities that are utilized by a wireless communications, system, thus lowering transmission costs. An exemplary embodiment includes bases, stations and a mobile switching center that is connected to an asynchronous transfer mode, (ATM) network for backhaul transmission.

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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 13, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 13, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 2023.
  • 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 13, 2001
GrantedNo grant recorded
Term endedMarch 13, 2021
Patent numberCA 2340517 A1
Classification (IPC)H04L12/56 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedMarch 13, 2001Term endedMarch 13, 2021

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