Techniques for optimizing use of channel bandwidth in...

Interactive video distribution systems – User-requested video program system – Video-on-demand

Reexamination Certificate

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Details

C725S086000, C725S087000, C725S097000

Reexamination Certificate

active

07624415

ABSTRACT:
A system for optimizing bandwidth of a video-on-demand system is provided. According to one aspect of the system, upon receiving a request from a first subscriber for a program, the system delivers the program to the first subscriber via a first communication channel. Upon receiving a request from a second subscriber for the same program, the system delivers only a beginning portion of the program to the second subscriber via a second communication channel and at the same time records a remaining portion of the program from the first communication channel. At the appropriate time, the recorded remaining portion of the program are shown to the second subscriber.

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patent: 2003/0037331 (2003-02-01), Lee
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patent: 2005/0033856 (2005-02-01), Li

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