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Expired Canadian patentCanada

Method and apparatus for average power control

CA 2194120 C · Owner: Motorola, Inc. · Inventors: Mccoy, James Wesley

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 transmitter (1) with improved average power comprises a mixer (34) for receiving an input signal (21) and providing a mixed signal (23) to an average power controller (14) comprising a fast automatic gain controller (26) for receiving the mixed signal and providing a conditioned signal to a hard limiter (28) for foldback clipping the conditioned signal to provide an output signal (15). The average power controller further comprises an error control signal generator (24 30, 36) for generating an, error control signal (27) calculated by subtracting (36) an average power estimation (30) of the output signal from a given nominal average power value (24). Finally, the average power controller …

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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 30, 1996 and granted February 27, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 30, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 30, 2018.
  • 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 30, 1996
GrantedFebruary 27, 2001
Term endedDecember 30, 2016
Patent numberCA 2194120 C
Classification (IPC)H04B1/04 +1 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedDec 30, 1996Patent grantedFeb 27, 2001Term endedDec 30, 2016

Sources & verification

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