Communication system for starting teleconference between two mul

Details Communication system for starting teleconference between two mul Communication system for starting teleconference between two mul

1994-05-26

1996-02-27

Chan, Wing F.

Television

Two-way video and voice communication

User positioning

379 96, 379202, 370 856, H04M 1100

Patent

active

054952859

ABSTRACT:
A communication system includes: a source multimedia station; a destination multimedia station; a first unit for generating a first random number in response to a connection start request, for transmitting the first random number to the destination multimedia station, and for receiving a second random number from the destination multimedia station; a second unit for generating a second random number in response to a connection start request, for transmitting the second random number to the source multimedia station, and for receiving the first random number from the source multimedia station; a control unit for establishing a telewriting connection between the two stations over a network by performing a telewriting connection protocol in response to a telewriting connection request issued from one of the two stations; and a unit for allowing the one of the two stations to issue a telewriting connection request to the other station, based on the result of comparison between the first random number and the second random number, and for inhibiting the other station from issuing a telewriting connection request, based on the result of the comparison.

REFERENCES:
patent: 5365265 (1994-11-01), Shibata et al.
patent: 5373503 (1994-12-01), Chen
patent: 5408261 (1995-04-01), Kamata et al.
patent: 5444477 (1995-08-01), Yamadera et al.

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