Video conferencing system, conference terminal and image server

Details Video conferencing system, conference terminal and image server Video conferencing system, conference terminal and image server

2006-02-17

2010-11-16

Appiah, Charles N (Department: 2617)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C348S014160

Reexamination Certificate

active

07835764

ABSTRACT:
In a video conferencing system, required bandwidth is suppressed to a lower level and a key person or the like of a conference can be confirmed easily. A presence server1manages location information in a virtual space for a user of each conference terminal2.Each conference terminal2sends image data of its own user to another conference terminal2in response to a request of that conference terminal2.Further, each conference terminal2receives location information of its own user in the virtual space, sends the received location information to the presence server1,and receives location information of the other users from the presence server1.Then, based on the location information of its own user and the location information of the other users, the conference terminal2detects forward users located forward from its own user, and receives image data from the conference terminal2of each of the forward users.

REFERENCES:
patent: 4400724 (1983-08-01), Fields
patent: 6285392 (2001-09-01), Satoda et al.
patent: 6327567 (2001-12-01), Willehadson et al.
patent: 6330022 (2001-12-01), Seligmann
patent: 2005/0041604 (2005-02-01), Tighe et al.
patent: 2006/0120308 (2006-06-01), Forbes et al.

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