System for controlling multiple filters in a color raster input

Details System for controlling multiple filters in a color raster input System for controlling multiple filters in a color raster input

1992-09-21

1994-05-24

Coles, Sr., Edward L.

Facsimile and static presentation processing

Natural color facsimile

Scanning

358505, 358474, H04N 146, H04N 104

Patent

active

053154142

ABSTRACT:
In a color scanner wherein a plurality of filters are selectably disposed in a light path to a sensor array, a target area of a preselected test color is provided adjacent the platen for the image to be scanned. The target area is used to determine which of the plurality of filters is disposed along the light path at a given time.

REFERENCES:
patent: 4748514 (1988-05-01), Bell
patent: 4864415 (1989-09-01), Beikirch et al.
patent: 4931862 (1990-06-01), Nakao et al.
patent: 5010415 (1991-04-01), Suzuki

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