High resolution graphics smoothing

Details High resolution graphics smoothing High resolution graphics smoothing

1981-04-28

1983-05-31

Masinick, Michael A.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340728, 340724, 340736, G06F 314

Patent

active

043863493

ABSTRACT:
A method and apparatus whereby an auxiliary yoke is used in conjunction with a CRT display to correctively deflect the electron beam to a true position within each pixel of a graphics figure, as the graphics figure is displayed on the CRT's screen. The apparatus thus increasing the display's resolution within each pixel so as to permit the smoothing of the displayed graphics figures.
The improved resolution being achieved via a four bit binary position correction code, three bits of which are stored in the image memory at those memory addresses corresponding to the coordinates of the pixels that comprise the graphics figure, and one bit of which position correction code is stored at the immediately preceeding memory addresses. The entire position correction code in turn being decoded as the image memory is read and used to drive one or the other of the x and y coil pairs of the x-y auxiliary yoke.

REFERENCES:
patent: 3337860 (1967-08-01), O'Hara
patent: 3418518 (1968-12-01), Reese
patent: 3440480 (1969-04-01), Henderson
patent: 3573789 (1971-04-01), Sharp
patent: 4237457 (1980-12-01), Houldsworth

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