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Expired Canadian patentCanada

System and method of quantifying the degree of balance between the forward link and the reverse link channels

CA 2334244 C · Owner: Unwired Planet, Llc · Inventors: Shah, Ali R.

CIPO record

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Abstract From the Canadian patent

A telecommunication system and method is disclosed for analyzing the speech quality, e.g. the Bit Error Rate (BER) on the forward and reverse links to , determine whether the links are balanced. For a target cell the BER on the , forward and reverse links can first be measured. The determination of whether the links in the target cell are balanced depends upon whether the BER percentage is known or only the BER class information is available. If the BER percentage is known, the relative difference of the mean BER on the reverse and forward links can be compared to determine the degree of the balance. However, if only the BER class is available the relative distribution of , …

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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 June 11, 1999 and granted May 17, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 11, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 11, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 11, 1999
GrantedMay 17, 2011
Term endedJune 11, 2019
Patent numberCA 2334244 C
Classification (IPC)H04L1/12 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedJune 11, 1999Patent grantedMay 17, 2011Term endedJune 11, 2019

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