System for providing control signals for raster scan displays

Details System for providing control signals for raster scan displays System for providing control signals for raster scan displays

1989-07-17

1990-09-18

Shepperd, John W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358150, 340814, H04N 504, H04N 506

Patent

active

049582275

ABSTRACT:
A system for providing control signals for raster scan displays includes a horizontal timing random access memory and a vertical state random access memory arranged in a presettable counter configuration containing multiple levels of information. This approach allows the generation of the control signals in a sychronized relationship using a common counter arrangement so as to obviate the need for repetitive circuitry and without compromising performance.

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patent: 4563676 (1986-01-01), Leininger
patent: 4616260 (1986-10-01), Erwin et al.
patent: 4670782 (1987-06-01), Harshbarger et al.

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