Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Patent
1997-07-07
1999-10-26
Kostak, Victor R.
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
455 42, 348 12, H04N 710, H04H 100
Patent
active
059736852
ABSTRACT:
A system architecture enables the distribution, to users connected to a digital broadcast medium, of supplementary information, which is presented and accessed in the context of the viewing of a video program. This ancillary, or "follow-up" information (FUI) is embedded in the same transport stream (digital multimedia broadcast stream) as the digital video and audio content. The FUI may take the form of video, audio or text. Alternatively, the transport stream may carry pointers to follow-up information (PFUI) instead of the information itself. In the latter case, the pointers are saved and used subsequently in the selection of FUI from a channel which carries data exclusively. In the former case, the user selects the FUI (supplementary information) which is to be extracted from the broadcast stream as it is transmitted.
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Nasr-El-Din Tantawy Ahmed
Schaffa Frank Andre
Seidman David Israel
Cameron Douglas W.
Drumheller Ronald L.
International Business Machines - Corporation
Kostak Victor R.
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