Interactive video distribution systems – User-requested video program system – Video-on-demand
Reexamination Certificate
2004-06-30
2011-10-25
Lonsberry, Hunter (Department: 2421)
Interactive video distribution systems
User-requested video program system
Video-on-demand
C725S095000, C725S096000, C725S097000
Reexamination Certificate
active
08046809
ABSTRACT:
A multicast services control system is provided for Internet protocol television transport. The system includes a service distribution platform, at least one service concentration platform, and at least one set-top box. The service distribution platform has a multicast table. The service distribution platform is configured to receive channels from an Internet protocol video source and the multicast table is configured to include an entry for each of the channels. The at least one service concentration platform communicates with the service distribution platform for forwarding “leaves” and receiving “joins” with the service distribution platform. The at least one set-top box includes a receiving port and is configured to generate “leaves” and forward the “leaves” to one or more of the at least one service concentration platform wherein the “leaves” are snooped by portals and concentrators and wherein the set-top box is further configured to receive “joins” from one or more of the at least one service concentration platform. A method is also provided.
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Chartier Michael J.
Debarros Jose J.
Setty Christopher K.
Sinnott Barbara R.
Baratta Jr. Lawrence A.
Bernard Christopher L.
Clements Bernard PLLC
Lonsberry Hunter
World Wide Packets, Inc.
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