System for applying grey scale codes to the pixels of a display

Details System for applying grey scale codes to the pixels of a display System for applying grey scale codes to the pixels of a display

1986-12-19

1988-05-03

Caldwell, Sr., John W.

Communications: electrical

Land vehicle alarms or indicators

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

340767, 340784, 340805, 340800, 340802, 358241, G09G 336

Patent

active

047423463

ABSTRACT:
A system for applying grey scale codes to a display device having a plurality of columns of pixels, has a segmented shift register, with one shift register segment for each pixel column. Data stored in the shift register segments are transferred to counters through multiplex circuitry. The counters control transfer gates by which voltages are applied to the pixel columns.

REFERENCES:
patent: 4180813 (1979-12-01), Yoneda
patent: 4210934 (1980-07-01), Kutaragi
patent: 4353062 (1982-10-01), Lorteije et al.
patent: 4427978 (1984-01-01), Williams
patent: 4429305 (1984-01-01), Hosokawa et al.
patent: 4554539 (1985-11-01), Graves
patent: 4571584 (1986-12-01), Suzuki

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