A method for obtaining data from an original document using a ca

Details A method for obtaining data from an original document using a ca A method for obtaining data from an original document using a ca

1988-11-21

1990-07-10

Groody, James J.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358494, H04N 110

Patent

active

049410563

ABSTRACT:
A method for obtaining digital data from an original, whereby the original is scanned in longitudinally successive, transversally extending strips by a semiconductor camera comprising a plurality of semiconductor elements arranged in series. The semiconductor camera is guided across the original or across a glass plate covering the original, in a transversely arranged, longitudinally displaceable portal-shaped supporting device. Distance between the original and the camera is maintained by moving the camera directly across the original or the glass plate covering the original, respectively. This method allows an exact adjustment of the distance between the camera and the original, although the intermediate glass plate may not be quite planar. In order to avoid scratching the surface of the glass plate, the distance between the camera and the original or the glass plate covering the original is maintained by means of an air-delivering unit, thus enabling an adjustment of the distance without the camera contacting the original or the glass plate, respectively.

REFERENCES:
patent: 4486786 (1984-12-01), Sato et al.
patent: 4764815 (1988-08-01), Landsman
patent: 4792858 (1988-12-01), Landsman

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