Animated dithered display systems

Details Animated dithered display systems Animated dithered display systems

1975-01-21

1976-05-25

Libman, George H.

Telegraphy

Systems

Simplex-reversing periodic

178DIG3, 307235N, H04N 314

Patent

active

039595838

ABSTRACT:
The random cell scintillations which have been observed in animated dithered displays are substantially eliminated by establishing a hysteresis band about the dither threshold value assigned to each display cell. The hysteresis band is delimited by upper and lower dither threshold values. Determination of whether the intensity of each picture element of the image to be displayed is to be compared to the upper or the lower threshold value assigned to the corresponding display cell is made based on the current state of the cell.

REFERENCES:
patent: 3787834 (1974-01-01), Elliott
patent: 3843959 (1974-10-01), Owaki et al.
patent: 3851189 (1974-11-01), Moyer
patent: 3887763 (1975-06-01), Hinoshita et al.

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