Serial data storage for multiple access demand

Details Serial data storage for multiple access demand Serial data storage for multiple access demand

1994-12-09

1998-05-26

Amsbury, Wayne

395610, 395613, 395615, 39520061, G06F 1730

Patent

active

057581517

ABSTRACT:
A data storage and retrieval method is disclosed for storing a unitary serial data in such a fashion that it can be read out multiple times in real time. The solution to the concurrent demand for serial data lies in the mapping of the data on a storage device using a method that presumes, but does not require, multiple concurrent access. The data set is resequenced from its logical data structure and stored on a medium adapted for use by the data storage and retrieval drive such that the new sequence appropriately supports concurrent use demand. In accordance with the invention, a serial data set, such as a movie, is segmented into substantially equal data subsets which is hardware capability determinative in that data storage and retrieval device data transfer rates are significantly greater than end user data transmission-reception rates. The data set is thus segmented in accordance with the number of threads to be supported for the concurrent demand. Each segment are subpartitioned into smaller piece subsets of the segment subsets. By packetizing the resequenced data set, standard techniques for cache.

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Hodge & Milligan, "True Video on Demand vs. Near Video on Demand, Statistical Modeling, Cost & Performance Trade-Offs", May 23, 1994.

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