Method and apparatus for processing video and graphics data util

Details Method and apparatus for processing video and graphics data util Method and apparatus for processing video and graphics data util

1998-03-24

2000-12-05

Powell, Mark R.

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

348455, G09G 500, H04N 1122

Patent

active

061573655

ABSTRACT:
A method and apparatus for processing video data and graphics data with minimal visual differences is accomplished by retrieving the graphics data and the video data at a first clock rate. Having retrieved the video data, it is sampled at a second clock rate to produce sampled video data. The second clock rate is greater than the first such that the video data is sampled at a higher rate than the pixel rate of the computing device. The sampled video data is then filtered by a low-pass filter to produce filtered video data. The filtered video data is then mixed, based on a control signal, with the retrieved graphics data to produce a mixed signal that is subsequently displayed.

REFERENCES:
patent: 5168359 (1992-12-01), Mills
patent: 5402148 (1995-03-01), Post et al.
patent: 5406306 (1995-04-01), Sianne et al.
patent: 5594467 (1997-01-01), Marlton et al.
patent: 5640332 (1997-06-01), Baker et al.

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