05629732 is referenced by 171 patents and cites 11 patents.

In a multimedia application where movie events are distributed on an on-demand basis, a multimedia server serves a subscriber requesting a movie event through either a high-demand process or a low-demand process. In a low demand process, a data stream representative of the movie is exclusively provided to the subscriber in accordance with a double-buffering technique. The server may switch many low-demand processes serving the same movie event into a high-demand process to effectively utilize limited resources. In the high-demand process, high-demand pointers are launched periodically and are associated with data streams representative of the movie event having different start times. Each data stream associated with a high-demand pointer may be shared by an unlimited number of subscribers. Service alterations of the movie including fast-forwarding, rewinding, and restarting after a pause are achieved by way pointer-hopping.

Title
Viewer controllable on-demand multimedia service
Application Number
8/219670
Publication Number
5629732
Application Date
March 29, 1994
Publication Date
May 13, 1997
Inventor
Michael Rizkalla
Pleasantville
NY, US
Alan S Moskowitz
Weston
CT, US
Agent
Brumbaugh Graves Donohue & Raymond
Assignee
The Trustees of Columbia University in the City of New York
IPC
H04N 7/173
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