Protocol and system for broadcasting audiovisual programs...

Details Protocol and system for broadcasting audiovisual programs... Protocol and system for broadcasting audiovisual programs...

2011-02-08

2011-02-08

Koenig, Andrew Y (Department: 2423)

Interactive video distribution systems

Video distribution system with upstream communication

Server or headend

C725S109000, C709S200000, C709S220000, C709S228000, C709S231000, C370S487000, C370S438000

Reexamination Certificate

active

07886328

ABSTRACT:
The invention concerns a protocol for broadcasting to a terminal (T) audio-visual materials (PG) from an audio-visual server, comprising a signalling source (SS) and an audio-visual source (SAV). The protocol consists, via an IP network, in acquiring (A) a descriptive file of the source (SS), in acquiring (B) from the source (SS) based on the file SDP, a broadcast signalling channel (SC), and in receiving (C) on said terminal from the signalling channel (SC) at least a digital data flow supporting the audio-visual materials (PG). The invention is useful for broadcasting audio-visual materials on INTERNET.

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Handley et al., “SDP: Session Description Protocol,” Network Working Group, Request for Comments: 2327, Category: Standards Track, XP002101463 (Apr. 1998).
International Search Report established for PCT/FR02/01835.

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