Title:
PROMOTION SERVER USING VIDEO ON DEMAND CHANNEL
Document Type and Number:
WIPO Patent Application WO2002045422
Kind Code:
A8
Abstract:
Prior to the occurrence of a commercial slot in a broadcast program, a trigger is inserted into the broadcast stream at the headend. This trigger contains information regarding VOD channel number to be switched. The STB receives the trigger and readies itself to tune to the VOD channel when cued for at the beginning of a commercial segment, but does not yet tune to the VOD channel. Upon detection of a commercial cue tone in the broadcast channel, the headend message server sends a tune away trigger (560) to the STB and instructs the VOD server to start playing (565) the cued promotion. When the STB receives a tune away trigger, it switches from the broadcast channel being played to the selected VOD channel. The promotion is viewed and then switch back to the original broadcast program at the end of the commercial segment.
Inventors:
KANOJIA CHAITANYA
SWARTZ TERRI
WETZEL DARREN
FAGNANI MARK
SWARTZ TERRI
WETZEL DARREN
FAGNANI MARK
Application Number:
PCT/US2001/044377
Publication Date:
July 11, 2002
Filing Date:
November 26, 2001
Export Citation:
Assignee:
NAVIC SYSTEMS INC (US)
International Classes:
H04N7/088; H04N7/16; H04N21/2225; H04N21/235; H04N21/258; H04N21/2668; H04N21/438; H04N21/6543; H04N21/81; (IPC1-7): H04N7/10; H04N7/025; H04N7/173
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