Synthetic persistence for raster scan displays

Details Synthetic persistence for raster scan displays Synthetic persistence for raster scan displays

1982-09-27

1985-03-12

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

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

340744, 340793, G09G 116

Patent

active

045048274

ABSTRACT:
A method and apparatus for pseudorandomly decrementing the intensity of data that is displayed on a raster scan display screen. The apparatus essentially comprises means for selecting and partially decrementing data from an image memory and means for controlling the rate at which the partially decremented data is written back into the image memory so that an apparently uniform phosphor decay rate is observed by a viewer.

REFERENCES:
patent: 4087806 (1978-05-01), Miller
patent: 4195293 (1980-03-01), Marzolin
patent: 4200869 (1980-04-01), Murayama et al.
patent: 4203107 (1980-05-01), Lovercheck

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