Packet mode multimedia conferencing services over an ISDN wide a

Details Packet mode multimedia conferencing services over an ISDN wide a Packet mode multimedia conferencing services over an ISDN wide a

1996-06-28

1999-06-01

Patel, Ajit

Multiplex communications

Special services

Conferencing

H04L 1216, H04Q 1100

Patent

active

059094311

ABSTRACT:
Real-time multimedia services are transmitted over a hybrid network including a nonguaranteed quality of service packet switched local area network and a circuit switched ISDN wide area network having a centralized multimedia bridge located within the wide area network. The local area networks and multimedia bridge are interconnected via ISDN routers. An algorithm executed by the multimedia bridge receives signals from the packet switched network and detects the absence of properties needed for real-time audio visual services. The data signals are processed to compensate for the absence of the properties and then are transmitted over the wide area network to enable real-time audio visual services.

REFERENCES:
patent: 4866704 (1989-09-01), Bergman
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patent: 5384835 (1995-01-01), Wheeler
patent: 5444703 (1995-08-01), Gagliardi et al.
patent: 5560038 (1996-09-01), Haddock
patent: 5617539 (1997-04-01), Ludwig et al.
patent: 5682384 (1997-10-01), Zarros

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