Unified program guide interface

Details Unified program guide interface Unified program guide interface

1996-07-02

1997-04-29

Kostak, Victor R.

Television

Special applications

Manufacturing

348906, 348589, H04N 710

Patent

active

056254067

ABSTRACT:
Analog and digital video signals are each representative of a picture and each may carry program guide information. A demultiplexer has the digital video signal as an input and the program guide information as an output. A demodulator has at least a luminance component of the analog video signal as an input and the program guide information as an output. A microprocessor, a video graphics adapter, the demultiplexer and the demodulator are interconnected by a data bus. Either of the program guide outputs is transferable to the video graphics adapter, which formats a graphics video signal representative of the program guide information. The graphics video signal and a selected one of the video signals are inputs to a multiplexer, which outputs a combined video signal representative of both the program guide information and the picture represented by the selected video signal.

REFERENCES:
patent: 4751578 (1988-06-01), Reiter et al.
patent: 5047867 (1991-09-01), Strubbe et al.
patent: 5231493 (1993-07-01), Apitz
patent: 5552833 (1996-09-01), Henmi et al.

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