公开(公告)号：US20040163122A1

公开(公告)日：2004-08-19

申请号：US10479374

申请日：2003-12-01

Applicant: FRANCE TELECOM

Inventor： Christian Bertin

IPC: H04N007/173 ,  H04N005/445 ,  G06F003/00 ,  G06F013/00

CPC classification number: H04L65/1043 ,  H04L12/1877 ,  H04L29/06027 ,  H04L65/4076 ,  H04N7/17309 ,  H04N7/17318 ,  H04N21/234327 ,  H04N21/23439 ,  H04N21/4331 ,  H04N21/4622 ,  H04N21/4782 ,  H04N21/6125 ,  H04N21/6332 ,  H04N21/63345 ,  H04N21/6405 ,  H04N21/64322 ,  H04N21/6547

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.

Abstract translation: 本发明涉及一种用于向包括信令源（SS）和视听源（SAV）的视听服务器的终端广播视频资料（PG）的协议。 该协议通过IP网络在基于文件SDP，广播信令信道（SC）以及从广播信令信道（SC）获取（B）从源（SS）获取（A）源（SS）的描述文件时， 在所述终端从所述信令信道（SC）接收（C）至少一个支持所述视听材料（PG）的数字数据流。 本发明对于在INTERNET上广播视听材料很有用。