Calibration improvement with dither for a raster input scanner

Details Calibration improvement with dither for a raster input scanner Calibration improvement with dither for a raster input scanner

1987-06-15

1988-07-12

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358283, H04N 1387

Patent

active

047573899

ABSTRACT:
A raster input scanner in which a dither generator introduces a random error signal to artificially increase the calibration signal accuracy during calibration of the scanner.

REFERENCES:
patent: 4196454 (1980-04-01), Warren
patent: 4495522 (1985-01-01), Matsunawa et al.
patent: 4517605 (1985-05-01), Yokomizo
patent: 4517606 (1985-05-01), Yokomizo et al.
patent: 4531160 (1985-07-01), Ehn
patent: 4556918 (1985-12-01), Yamazaki et al.
patent: 4663662 (1987-05-01), Sekizawa

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