A method and a system for transfering amr signaling frames on halfrate channels
CA 2452774 C · Owner: Bellier, Thierry · Inventors: Bellier, Thierry; Sebire, Benoist
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to the transference of signaling frames on GERAN (GSM/EDGE Radio Access Network) half rate channels utilizing a modulation scheme carrying n bits in one symbol. In order to be able to utilize the existing channel coding developed for channels with different modulations and to avoid high rate convolutional and block codes the AMR signalling frame to , be transferred is coded using a coding procedure defined for a GSM half rate channel utilizing a GMSK modulation scheme the coding procedure outputting a , coded output stream. In response to said coding each bit of the coded output , stream is repeated n times whereby a repeated bit stream is obtained and , …
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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 27, 2001 and granted January 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 27, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 27, 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.