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Expired Canadian patentCanada

System for transmitting digital data, especially over an optical link

CA 2101015 C · Owner: Ollivier, Francois-Xavier · Inventors: Ollivier, Francois-Xavier; Pamart, Jean-Luc; Le Mouel, Bernard

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

This transmission system, comprising transmitting end equipment (1) and receiving end equipment (2), is such that it comprises means for evaluating reception error rates and means (7) for controlling one or more parameters characteristic of the transmitting end equipment and/or receiving end equipment depending on the error rate thereby evaluated so as to continuously optimize the said parameter or parameters for the actual performance of the transmission system.

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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 July 21, 1993 and granted April 20, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 21, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 21, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 21, 1993
GrantedApril 20, 1999
Term endedJuly 21, 2013
Patent numberCA 2101015 C
Classification (IPC)H04B10/02 +1 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedJuly 21, 1993Patent grantedApril 20, 1999Term endedJuly 21, 2013

Sources & verification

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