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Expired Canadian patentCanada

Adaptive beam forming with multi-user detection and interference reduction in satellite communication systems and methods

CA 2588192 C · Owner: Zheng, Dunmin · Inventors: Karabinis, Peter D.; Zheng, Dunmin

CIPO record

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Abstract From the Canadian patent

Satellite communications methods include receiving communications signals including co-channel interference at a space-based component from a plurality of wireless terminals in a satellite footprint over a satellite frequency band and reducing interference in the communication signals by (a) performing cochannel interference reduction on the communications signals to generate a plurality of interference reduced signals and (b) performing multiple access interference cancellation on the interference reduced signals. An interference reducing detector for a satellite communications system includes an interference reducer configured to perform co-channel interference reduction on …

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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 December 21, 2005 and granted June 23, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 21, 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.
FiledDecember 21, 2005
GrantedJune 23, 2015
Term endedDecember 21, 2025
Patent numberCA 2588192 C
Classification (IPC)H04B7/18

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedDec 21, 2005Patent grantedJune 23, 2015Term endedDec 21, 2025

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