Method and system for processing two analog composite video sign

Details Method and system for processing two analog composite video sign Method and system for processing two analog composite video sign

1996-02-13

1998-09-01

Hsia, Sherrie

Television

Basic receiver with additional function

For display of additional information

348565, 348567, 348588, 348705, H04N 5445

Patent

active

058017852

ABSTRACT:
Disclosed is a method and apparatus for processing two analog composite video signals to be displayed to a human observer. The system includes at least a first and a second video source for generating first and second analog composite video signals respectively, and a selector coupled to the first and second video sources. The selector is operative to supply either the first or second analog composite video signal to one input of a video processor and independently and simultaneously supply either the first or second analog composite video signal to a second input of the video processor. The video processor is operative under control of a CPU to generate an output analog composite video signal comprised of a portion of the analog composite video signal supplied to the video processor's first input and a portion of the analog composite video signal supplied to the video processor's second input.

REFERENCES:
patent: 5402183 (1995-03-01), Tanaka
patent: 5452012 (1995-09-01), Saitoh
patent: 5512954 (1996-04-01), Shintani
patent: 5539478 (1996-07-01), Bertram
patent: 5539479 (1996-07-01), Bertram
patent: 5548340 (1996-08-01), Bertram
patent: 5604544 (1997-02-01), Bertram

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