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Expired Canadian patentCanada

A method of transmitting feedback information in a multi-input, multi-output (mimo) system

CA 2599716 C · Owner: Jin, Yong Suk · Inventors: Ihm, Bin Chul; Jin, Yong Suk

CIPO record

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Abstract From the Canadian patent

A method of transmitting feedback information in a Multi-Input Multi-Output , (MIMO) system is disclosed. In the method a mobile station (MS) which , determines to transmit feedback information and feedback type to a base station (BS) without solicitation from the BS wherein the feedback type is , transmission antenna type and transmits the feedback information using a MIMO mode feedback extended subheader, wherein the MIMO mode feedback extended subheader appears between a Medium Access Channel (MAC) header and a payload.

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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 February 28, 2006 and granted November 25, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 28, 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.
FiledFebruary 28, 2006
GrantedNovember 25, 2014
Term endedFebruary 28, 2026
Patent numberCA 2599716 C
Classification (IPC)H04W8/24 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedFeb 28, 2006Patent grantedNov 25, 2014Term endedFeb 28, 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.