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Expired Canadian patentCanada

Method and system for the determination of the pscn parameter starting from the mfn parameter in a dect cordless telephone system

CA 2216580 C · Owner: Italtel Spa · Inventors: Marnoni, Luca; De Benedittis, Rossella

CIPO record

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Abstract From the Canadian patent

The invention relates to a method and a system to obtain the so-called Primary Receiver Scan Carrier Number (PSCN) starting from the data regarding the so-called multiframe number (MFN) in a personal telephone system realized according to the DECT standard. The preferred embodiment of the present invention includes the following steps: calculating the minimum common multiple (m.c.m.) between the duration of a multiframe (160 ms) and the period necessary for the complete scanning of the frequencies by the radio fixed part (RFP); dividing this minimum common multiple (m.c.m.) by the duration of a multiframe and taking the quotient to obtain a periodicity value; waiting that the multiframe …

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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 March 29, 1996 and granted July 23, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 29, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 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.
FiledMarch 29, 1996
GrantedJuly 23, 2002
Term endedMarch 29, 2016
Patent numberCA 2216580 C
Classification (IPC)H04W48/16 +1 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedMarch 29, 1996Patent grantedJuly 23, 2002Term endedMarch 29, 2016

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