Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1996-05-24
1998-08-25
Coles, Sr., Edward L.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358447, 358461, 358406, 358446, 358482, 358483, 382168, 382270, 382274, 348251, 348241, H04N 138, H04N 140, H04N 964, H04N 104
Patent
active
057988471
ABSTRACT:
When an array of photodetecting elements has to be calibrated, normally a reference surface is scanned. Yet the reference surface is not an ideal surface and likely may include scratches or dust particles so that the signals read out from the array have to be corrected. A method and system of correction are provided in which the statistical distribution of the signals read out over the surface is evaluated for each photodetector. By this evaluation, dust and scratches can be disregarded before calculating a mean value representative of the sensitivity of each individual element.
REFERENCES:
patent: 4523229 (1985-06-01), Kanmoto
patent: 4695884 (1987-09-01), Anastassiou et al.
patent: 4888492 (1989-12-01), Arimoto
patent: 4903145 (1990-02-01), Funada
patent: 5062144 (1991-10-01), Murakami
patent: 5133022 (1992-07-01), Weideman
patent: 5347370 (1994-09-01), Ishihara et al.
patent: 5404232 (1995-04-01), Selby
patent: 5471319 (1995-11-01), Ogawa
Coles Sr. Edward L.
Harris Tia M.
Oce'-Nederland, B.V.
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