发明名称 |
VIDEO OPTIMIZED MEDIA STREAMER WITH CACHE MANAGEMENT |
摘要 |
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.
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申请公布号 |
CA2153444(A1) |
申请公布日期 |
1996.03.09 |
申请号 |
CA19952153444 |
申请日期 |
1995.07.07 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BELKNAP, WILLIAM RUSSELL;HENLEY, MARTHA R.;FALCON, LORENZO JR.;FRAYNE, THOMAS E.;LUO, MEI-LAN;SAXENA, ASHOK RAJ |
分类号 |
G06F12/08;G06F3/06;G06F12/00;G06F17/30;(IPC1-7):H04N7/173 |
主分类号 |
G06F12/08 |
代理机构 |
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地址 |
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