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Expired Canadian patentCanada

Method and apparatus for controlling rate of voice service in a mobile communication system supporting voice service via packet network

CA 2611642 C · Owner: Kim, Soeng-Hun · Inventors: Choi, Sung-Ho; Kwak, No-Jun; Van Lieshout, Gert-Jan

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 method for controlling a rate of a voice service in a mobile communication system supporting the voice service via a packet network. The method includes the steps of receiving a control message at a terminal from a radio network controller (RNC); if the control message indicates control of a downlink rate determining a downlink rate according to the control message; setting a Change Mode Request (CMR) field of an uplink Voice over Internet Protocol (VoIP) packet according to the downlink rate, and transmitting the uplink VoIP packet from the terminal to the RNC; if the received control message indicates control of an uplink rate, determining an uplink rate according to the control …

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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 30, 2006 and granted September 30, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 30, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • 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 30, 2006
GrantedSeptember 30, 2014
Term endedJune 30, 2026
Patent numberCA 2611642 C
Classification (IPC)H04L12/66

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJune 30, 2006Patent grantedSep 30, 2014Term endedJune 30, 2026

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