H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/173 (2006.01) G06F 3/06 (2006.01) G06F 17/30 (2006.01) G06F 12/08 (2006.01)
Patent
CA 2153444
A data storage system includes a mass storage unit storing a data entity, such as a digital representation of a video presentation, that is partitioned into a plurality N of temporally-ordered segments. A data buffer is bidirectionally coupled to the mass storage unit for storing up to M of the temporally-ordered segments, wherein M is less than N. The data buffer has an output for outputting stored ones of the temporally-ordered segments. The data storage system further includes a data buffer manager for scheduling transfers of individual ones of the temporally-ordered segments between the mass storage unit and the data buffer. The data buffer manager schedules the transfers in accordance with at least a predicted time that an individual one of the temporally-ordered segments will be required to be output from the data buffer. When employed with a media streamer distributed data buffer management techniques are employed for selecting blocks to be retained in a buffer memory, either in a storage node or in a communication node. These techniques rely on the predictable nature of the video data stream, and thus are enabled to predict the future requirements for a given one of the data blocks.
Belknap William Russell
Falcon Lorenzo Jr.
Frayne Thomas E.
Henley Martha R.
Luo Mei-Lan
International Business Machines Corporation
Saunders Raymond H.
LandOfFree
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