Apparatus for generating a cursor or other overlay which contras

Details Apparatus for generating a cursor or other overlay which contras Apparatus for generating a cursor or other overlay which contras

1992-09-25

1993-12-14

Weldon, Ulysses

Computer graphics processing and selective visual display system

Display peripheral interface input device

345145, 345147, G09G 128

Patent

active

052706885

ABSTRACT:
A circuit for generating pixel values for an overlay for a bitmapped output display including apparatus for testing the color value of a background pixel, apparatus for setting the color value of the pixel of the overlay to a minimum value for the particular color if the color value of a background pixel is greater than a preselected value, and apparatus for setting the color value of the pixel of the overlay to a maximum value for the particular color if the color value of a background pixel is less than the preselected value.

REFERENCES:
patent: 4704605 (1987-11-01), Edelson
patent: 4734619 (1988-03-01), Havel
patent: 4837562 (1989-06-01), Nishiura et al.
patent: 4895376 (1990-01-01), Chiang Shiung-Fri
patent: 4977398 (1990-12-01), Pleva et al.

Affiliated with

Also associated with

Rating

Apparatus for generating a cursor or other overlay which contras does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for generating a cursor or other overlay which contras, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for generating a cursor or other overlay which contras will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1708897