Interactive video distribution systems – User-requested video program system – Video-on-demand
Reexamination Certificate
2007-10-23
2007-10-23
Salce, Jason P. (Department: 2623)
Interactive video distribution systems
User-requested video program system
Video-on-demand
C116S138000, C116S146000, C370S229000, C370S230000, C370S235000, C370S351000, C370S352000, C370S353000, C370S354000, C370S355000, C370S356000, C370S357000, C709S213000, C709S214000, C709S215000, C709S216000, C709S230000, C709S231000, C709S232000, C709S233000, C709S234000, C709S235000, C709S236000
Reexamination Certificate
active
10010909
ABSTRACT:
A video-on-demand system is comprised of a supervisor processor and a co-processor which are intercoupled via a bus. The supervisor processor has a supervisor memory and the co-processor has a co-processor memory. A supervisor control program is in the supervisor memory, which includes—a) a means for transferring a group of video data packets from an externally stored complete video into the supervisor memory, b) a means for building in the supervisor memory, a respective subgroup of internet protocol headers for each video data packet in the group, and c) a means for constructing in the co-processor memory, a transmission control list which indicates how each video data packet in the group and its respective subgroup of internet protocol headers can be accessed from the supervisor memory. A co-processor control program is in the co-processor memory, which includes—a) a means for partitioning into pieces, each video data packet and its respective subgroup of internet protocol headers as identified by the transmission control list, and b) a means for sending each piece, with an additional header, to an output port during spaced apart time slots.
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Bates Stephen Ralph
Campbell Kent M.
Harsch Thomas Charles
Jacobs Robert Louis
Ulis John Waldimars
Fassbender Charlie
Gregson Richard J.
Johnson Charles A.
Salce Jason P.
Unisys Corporation
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