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Expired Canadian patentCanada

Apparatus and method for encoding/decoding space time block code in a mobile communication system using multiple input multiple output scheme

CA 2557736 C · Owner: Katz, Marcos Daniel · Inventors: Cho, Young-Kwon; Jeong, Hong-Sil; Chae, Chan-Byoung

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Abstract From the Canadian patent

Method and apparatus for encoding a space time block code in a transmitter employing transmit antennas are provided. If a signal to be transmitted is input, the , transmit signal is pre-encoded according to a preset pre-encoding matrix. The pre-encoded, signal is space-time mapped according to a number of the transmit antennas to employ a preset space time block coding scheme. The space-time mapped signal is , transmitted through the transmit antennas by applying the scheme to the spacetime , mapped signal. The pre-encoded signal is divided according to transmit antenna groups , into which the transmit antennas are classified. The preset pre-encoding matrix is , generated by …

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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 May 4, 2005 and granted January 22, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 4, 2025.
  • 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.
FiledMay 4, 2005
GrantedJanuary 22, 2013
Term endedMay 4, 2025
Patent numberCA 2557736 C
Classification (IPC)H04B7/04 +1 more

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2006200820102012201420162018202020222024Application filedMay 4, 2005Patent grantedJan 22, 2013Term endedMay 4, 2025

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