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Canadian application, no grantCanada

Video server

CA 2135991 A1 · Owner: Alcatel N.V. · Inventors: Verhille, Henri Albert Julia; Deloddere, Daniel

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

Abstract, Video server, The video server (VS) is used in a video on demand network wherein video signals are transferred over a communication network (TSY) from said video server to terminals thereof. It includes video signal memories (VM), a server control means (SCM), a broadband switch (BS) having first ports (VP1/VPY) to which the memories (VM) are coupled second ports (CL), coupled to the communication system (TSY) and a third port (CP) to which the server control means (SCM) is coupled. The server control means (SCM) control the transfer of the video signals from the memories (VM) and through the switch (BS) and the communication system (TSY) to the terminals. The broadband switch …

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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 November 16, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 16, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 16, 1994
GrantedNo grant recorded
Term endedNovember 16, 2014
Patent numberCA 2135991 A1
Classification (IPC)H04N5/00 +1 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedNov 16, 1994Term endedNov 16, 2014

Sources & verification

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