Television – Two-way video and voice communication – User positioning
Patent
1997-05-16
1999-12-07
Kuntz, Curtis A.
Television
Two-way video and voice communication
User positioning
379 9317, 379 9323, H04N 714
Patent
active
059992077
ABSTRACT:
A graphical user interface for a videophone in a cable television system allows the user to access the videophone functionalities with an input control device and a television monitor. The user can place a call, receive a call and store/access/call addresses using a remote in conjunction with the graphical user interface display screens. The videophone has several elements including a user interface, a graphics engine, a network interface, a remote control interface, and an output audio/video line connected to a television monitor. The user interface receives and processes control inputs using a microprocessor and the graphics engine generates the display screens using a DSP. Depending on processing requirements, the DSP may implement the user interface rather than the microprocessor. Also, anti-aliasing fonts are used to generate a high quality display. To save processing cycles, the anti-aliasing fonts may be retrieved from a look-up table rather than being generated in real time. The videophone may be implemented as a plug-in device to a set-top box, a standalone unit, or a standalone unit with a set-top box between the monitor and the videophone unit. When implemented with a set-top box the same remote control unit may be used to control the television and videophone functions.
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Jerding Dean F.
Li Xin
Patel Neilesh R.
Rodriguez Arturo A.
Rovira Luis A.
Barnhardt III Hubert J.
Gardner Kelly A.
Kuntz Curtis A.
Massaroni Kenneth M.
Ramakrishnaiah Melur
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