05933603 is referenced by 256 patents and cites 58 patents.

A video file server includes an integrated cached disk array storage subsystem and a plurality of stream server computers linking the cached disk storage subsystem to a data network for the transfer of video data streams. The video file server further includes a server controller for applying an admission control policy to client requests and assigning stream servers to service the client requests. The stream servers include a real-time scheduler for scheduling isochronous tasks, and supports at least one industry standard network file access protocol and one file access protocol for continuous media file access. The cached disk storage subsystem is responsive to video prefetch commands, and the data specified for a prefetch command for a process are retained in an allocated portion of the cache memory from the time that the cached disk storage subsystem has responded to the prefetch command to the time that the cached disk storage subsystem responds to a fetch command specifying the data for the process. The time between prefetching and fetching is selected based on available disk and cache resources. The video file server provides video-on-demand service by maintaining and dynamically allocating sliding windows of video data in the random access memories of the stream server computers.

Title
Video file server maintaining sliding windows of a video data set in random access memories of stream server computers for immediate video-on-demand service beginning at any specified location
Application Number
8/661053
Publication Number
5933603
Application Date
June 10, 1996
Publication Date
August 3, 1999
Inventor
Percy Tzelnic
Concord
MA, US
John Forecast
Newton
MA, US
Uresh K Vahalia
Newton
MA, US
Agent
Arnold White & Durkee
Assignee
EMC Corporation
MA, US
IPC
H04N 7/14
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