Interactive video distribution systems – User-requested video program system – Video-on-demand
Reexamination Certificate
2007-03-06
2007-03-06
Vu, Ngoc (Department: 2623)
Interactive video distribution systems
User-requested video program system
Video-on-demand
C725S091000, C725S094000, C725S115000
Reexamination Certificate
active
09714072
ABSTRACT:
A method of and apparatus for efficiently managing video programming services by a provider of video on demand services in response to requests from cable television subscribers. The system is controlled by a multimedia application server. Upon receipt of a request, the multimedia application server searches for the most appropriate means of satisfying the request. If the requested program is already being provided, the streaming occurs from the same video server, if capacity is available. If the program already exists in streamable form, it is streamed from that location. If the requested program must be transferred to video server memory, the available space is found to accommodate the transfer or existing programming is swapped out.
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Jacobs Robert L.
McBreen James R.
Nissen Laura M.
Rieschl Michael J.
Johnson Charles A.
Nawrocki, Rooney & Sivertson P.A.
Starr Mark T.
Unisys Corporation
Vu Ngoc
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