Pattern write control circuit

Details Pattern write control circuit Pattern write control circuit

1986-04-24

1989-04-18

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

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

340701, 340744, 340798, G09G 128

Patent

active

048231193

ABSTRACT:
A pattern write control circuit of the invention has a graphic memory consisting of a plurality of memory planes each storing corresponding to color data for color display, an address selector for supplying a common address to the plane memories, a register storing the color data corresponding to each memory plane and simultaneously supplying the color data to a common location of the memory planes accessed by the common address, and a decoder for producing write enable signal for writing the color data into a specified memory plane in accordance with the display color data of the dot supplied from a CPU.

REFERENCES:
patent: 4016544 (1977-04-01), Morita et al.
patent: 4475161 (1984-10-01), Stock
patent: 4491836 (1985-01-01), Collmeyer et al.

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