METHOD AND APPARATUS FOR IP MULTICAST RELAY OF LIVE TV STREAMING TRAFFIC IN A TV-OVER-IP ENVIRONMENT
First Claim
Patent Images
1. A system for live TV transmission over IP networks comprising:
- a head end real-time encoding/transcoding server for converting live TV encoded data streams;
a first set of relay servers receiving multicast data streams from the encoding/transcoding server, said first set of relay servers providing unicast stream output to a second set of relay servers through unicast only routers, said first and second sets of relay routers providing unicast stream output to child relay routers and multicast stream output to associated access network elements.
1 Assignment
0 Petitions
Accused Products
Abstract
A system for live TV transmission over IP networks incorporates a head end real-time encoding/transcoding server for converting live TV encoded data streams with root multicast relay servers receiving multicast data streams from the encoding/transcoding server. The multicast stream output is provided to a first set of relay servers through multicast capable routers and the root multicast servers provide unicast stream output to a second set of relay servers through unicast limited routers. The first and second sets of relay servers provide unicast and multicast stream output for child servers or local access networks.
-
Citations
15 Claims
-
1. A system for live TV transmission over IP networks comprising:
-
a head end real-time encoding/transcoding server for converting live TV encoded data streams;
a first set of relay servers receiving multicast data streams from the encoding/transcoding server, said first set of relay servers providing unicast stream output to a second set of relay servers through unicast only routers, said first and second sets of relay routers providing unicast stream output to child relay routers and multicast stream output to associated access network elements. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A relay server for live TV transmission over IP networks comprising:
-
means for receiving multicast data streams from a head end;
means for receiving unicast data streams from a parent relay server;
means for multicast data stream output; and
,means for unicast data stream output. - View Dependent Claims (9, 10)
-
-
11. A method for live TV transmission over IP networks comprising the steps of:
-
converting live TV encoded data streams in a head end real-time encoding/transcoding server;
receiving multicast data streams from the encoding/transcoding server in a first set of relay servers;
providing unicast stream output from said first set of relay servers to a second set of relay servers through unicast limited routers, providing both unicast and multicast stream output from said first and second sets of relay servers. - View Dependent Claims (12, 13, 14, 15)
-
Specification