Patent Yard Sign in
Expired Canadian patentCanada

Multi-location video conference system

CA 1330236 C · Owner: Mahmoud, M. Fatein · Inventors: Mahmoud, M. Fatein

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

This invention relates to Multilocation Video Teleconferencing which can be used with the SKYNET? satellite communication services. The system allows a conference director to teleconference with people in any one of several conference rooms on a dynamic basis. In a multilocation video teleconference, the conference director determines which one of the rooms should be seen by all of the remaining rooms. The network performs dynamic switching to bring the new video signals to all rooms. This switching occurs, very quickly after issue of the commands by the director. The network can use two satellite channels. One channel can be assigned to the broadcasting room and the second channel can be …

Read the whole patent

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

  • Granted June 14, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 14, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 5, 1989
GrantedJune 14, 1994
Term endedJune 14, 2011
Patent numberCA 1330236 C
Classification (IPC)H04N7/15 +2 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedJune 5, 1989Patent grantedJune 14, 1994Term endedJune 14, 2011

Sources & verification

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