Electrical computers and digital processing systems: multicomput – Computer-to-computer protocol implementing – Computer-to-computer data streaming
Reexamination Certificate
2003-05-23
2009-06-16
Vaughn, Jr., William C (Department: 2444)
Electrical computers and digital processing systems: multicomput
Computer-to-computer protocol implementing
Computer-to-computer data streaming
C709S203000, C709S229000, C709S232000, C709S238000, C725S044000, C725S047000, C725S048000, C725S049000, C382S232000, C382S284000
Reexamination Certificate
active
07548984
ABSTRACT:
The invention aims to protect content copyright and reduce the load on a stream server device in a stream distribution system having the stream server device, which stores bitstreams that include contents and control information necessary for image playback of contents, a plurality of terminal devices that playback received bitstreams, and a cache server device that mediates between these devices. A header separation unit in the stream server device separates header information, which is control information, from a bitstream stored in a storage unit. A data transmitting unit transmits the bitstream from which header information has been removed to the cache server device before a predetermined time, and transmits the header information to the cache server device at the predetermined time. The cache server device transmits a bitstream that combines the bitstream, which was received first, and the header information, which was received later, to a terminal device. The terminal device receives the bitstream at the predetermined time, and plays the content.
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Ibrahim Mohamed
Panasonic Corporation
Vaughn, Jr. William C
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