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Expired Canadian patentCanada

Efficient digital channelizer system and method of operation thereof

CA 2299100 C · Owner: Northrop Grumman Space & Mission Systems Corp. · Inventors: Moretti, Vincent C.; Caso, Gregory S.; Carrozza, Dominic P.

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Abstract From the Canadian patent

The invention is a digital channelizer and a process for dividing an input bandwidth into at least some of N channels. A digital channelizer which divides an input bandwidth into at least some of N channels in accordance with the invention includes an analog to digital converter (14) which encodes the input bandwidth into a serial digital data stream of data words; a demultiplexer (16), coupled to the analog to digital converter, which divides the serial digital data stream into M parallel data streams of data words; a window presum (102) having N outputs, coupled to the parallel data streams each, output being a function of a window presum function and data words from a plurality of the …

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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 18, 2000 and granted December 16, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 18, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 18, 2022.
  • 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 18, 2000
GrantedDecember 16, 2003
Term endedFebruary 18, 2020
Patent numberCA 2299100 C
Classification (IPC)H04L25/14 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedFeb 18, 2000Patent grantedDec 16, 2003Term endedFeb 18, 2020

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