Optimized display device memory utilization

Details Optimized display device memory utilization Optimized display device memory utilization

1982-05-11

1985-05-28

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340703, 340747, G09G 128

Patent

active

045203580

ABSTRACT:
A method of utilizing a memory device for a display device which comprises a parallel combination of an image and a control memory connected to a decoder. At each of addresses assigned to form a color signal, the image memory stores a byte including bits corresponding to green pieces of color information alternating with bits corresponding to red pieces of color information; the control memory stores a byte including four consecutive bits corresponding to blue pieces of color information. The decoder combines associated triads of the red, green and blue bits to form a color signal for a display indicating device. At each of the addresses assigned to form a dot signal, the image memory stores a byte representing the brilliance of a dot and the control memory stores a byte including three consecutive color bits for a foreground to be displayed when a corresponding bit in the image memory is a binary "1" and another three color bits for a background to be displayed when a corresponding bit in the image memory is a binary "0".

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