Bidirectional communication system, client terminal, client management server, and broadcast server
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United States of America Patent
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-
Nov 5, 2002
Grant Date -
N/A
app pub date -
Apr 3, 1998
filing date -
Apr 4, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A bidirectional communication system which provides a wide variety of communication services to meet the needs of broadcast audiences. Each client terminal sends a service request message over a communications network and receives authorization, and after that, it transmits and receives the video information. A client management server receives service request messages from clients and executes a two-stage authentication process to grant authorization to them. A video data communication server transmits and receives the video information to/from the requesting clients when their identity has successfully been authenticated.
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