05583561 is referenced by 492 patents and cites 31 patents.

A system and method for distributing real-time, compressed, digital video data from a video library composed of multiple mass storage devices through a digital video data server to large numbers of viewers via distribution networks is provided. The server obtains selected frames of video data for viewer-requested programs from high-speed memory using a buffering strategy, replicates the data via a multi-cast technique for each viewer listed in an assigned synchronization group and forwards the data to each viewer's site where it is decompressed, decoded, and converted for display on a television monitor or computer display. Each viewer maintains interactive control over the transmission of the digital video data.

Title
Multi-cast digital video data server using synchronization groups
Application Number
8/255014
Publication Number
5583561
Application Date
June 7, 1994
Publication Date
December 10, 1996
Inventor
Ralph E Sipple
Shoreview
MN, US
David R Johnson
Oakdale
MN, US
Donn B Baker
Minneapolis
MN, US
Agent
Mark T Starr
Charles A Johnson
Assignee
Unisys Corporation
PA, US
IPC
H04N 7/173
View Original Source