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Expired Canadian patentCanada

Reception pointer processing apparatus in sdh transmission system

CA 2210839 C · Owner: Fukunaga, Kenji · Inventors: Fukunaga, Kenji; Iwai, Takumi; Taniguchi, Atsuki

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Abstract From the Canadian patent

The present invention is a technology, concerning a reception pointer processing in an SDH transmission system. The objects of the invention are to identify automatically a frame size (frame composition) of the received transmission frame in the SDH (SONET) transmission system and to perform flexibly and rapidly a reception pointer processing corresponding to the frame size. These objects are realized by providing a reception pointer processing apparatus for performing the pointer processing of the transmission frame transmitted by the SDH transmission system, wherein the reception pointer processing apparatus comprises a pointer processing section for executing the required pointer …

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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 18, 1997 and granted July 3, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 18, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 18, 2019.
  • 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 18, 1997
GrantedJuly 3, 2001
Term endedJuly 18, 2017
Patent numberCA 2210839 C
Classification (IPC)H04L29/08 +1 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedJuly 18, 1997Patent grantedJuly 3, 2001Term endedJuly 18, 2017

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