Incorporating graphics and interactive triggers in a video...

Details Incorporating graphics and interactive triggers in a video... Incorporating graphics and interactive triggers in a video...

2007-02-13

2007-02-13

Srivastava, Vivek (Department: 2617)

Interactive video distribution systems

Video distribution system with local interaction

C725S032000, C715S723000, C715S726000, C715S731000

Reexamination Certificate

active

09782229

ABSTRACT:
Triggers for interactive television display are incorporated into a video stream in coordination with graphics associated with the triggers. Graphic sources such as channels (16,18) of a character generator (21) supply graphics associated with the triggers to graphic signal inputs (26,28) of a switch. When a channel supplies a graphic, a message denoting the associated trigger and associating the trigger with the channel is forwarded to a gateway computer (60). The gateway computer monitors connections between graphic signal inputs (26,28) and the video output (32) of the switch, and forwards triggers associated with a particular channel to an inserter (40) only if such channel is connected to output (32).

REFERENCES:
patent: 5956046 (1999-09-01), Kehlet et al.
patent: 6037936 (2000-03-01), Ellenby et al.
patent: 6188403 (2001-02-01), Sacerdoti et al.
patent: 98 41013 (1998-09-01), None
patent: 98 53611 (1998-11-01), None
The Chyron iNFINIT, Pub. No. 2A01976, pp. 1-978, Mar. 1999 Revision D.
The Advanced Television Enhancement Forum (ATVEF), Enhanced Content Specification, pp. 1-38 (1998, 1999).

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