05999207 is referenced by 171 patents and cites 12 patents.

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.

Title
Method and apparatus for implementing a user interface for a videophone in a cable television network
Application Number
8/857261
Publication Number
5999207
Application Date
May 16, 1997
Publication Date
December 7, 1999
Inventor
Xin Li
Norcross
GA, US
Luis A Rovira
Atlanta
GA, US
Timothy W Simerly
Cumming
GA, US
Neilesh R Patel
Duluth
GA, US
Dean F Jerding
Atlanta
GA, US
Arturo A Rodriguez
Norcross
GA, US
Agent
Kelly A Gardner
Hubert J Barnhardt III
Kenneth M Massaroni
Assignee
Scientific Atlanta
GA, US
IPC
H04N 7/14
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