Interactive video distribution systems – Program – message – or commercial insertion or substitution
Reexamination Certificate
2007-03-06
2007-03-06
Tran, Hai (Department: 2623)
Interactive video distribution systems
Program, message, or commercial insertion or substitution
C725S082000, C725S086000, C725S135000, C715S252000, C715S252000
Reexamination Certificate
active
09287402
ABSTRACT:
A method and apparatus is provided for synchronizing display of HTML documents to the audio/video content of a digital television program. Documents are authored with a structure for receiving a presentation time stamp value. After the packetized data representing the document is received at the television receiver, the document is reconstructed, and the value of the presentation time stamp is inserted in the structure in the document. The broadcast HTML formatted document, including the time stamp value, can be read by a broadcast HTML cognizant browser which notifies the program viewer or displays the document at the time specified by the time stamp.
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Chernoff Vilhauer & McClung & Stenzel
Sharp Laboratories of America Inc.
Tran Hai
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