Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1987-01-27
1988-02-16
Britton, Howard W.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358 75, 358289, 358290, 358294, H04N 106, H04N 118
Patent
active
047258918
ABSTRACT:
An apparatus for digitizing an image on a film material using a plurality of movable equally spaced light detectors. Light sources direct light through a sheet of the material disposed on a transparent drum. The light which is transmitted is imaged onto light detectors through apertures in a mask. As the drum rotates, the mask and light detectors move in unison longitudinally at a rate of one pixel width per drum revolution. One embodiment of a scanning module comprises only light detectors and mask, while another embodiment also includes a pair of lens arrays that image the sheet onto the detectors. There are an integral number of pixel widths between adjacent detectors. A plurality of parallel lines on the mask and a scanner fixed relative to the drum sense the relative position between the mask and the drum for providing corrective feedback information to a motor moving the mask and light detectors. Color recording may be provided with a mask having three rows of apertures in which each row transmits a different one of red, green, and blue light. The film image is represented by a mosaic of pixels with each pixel mapping to an element of memory.
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Britton Howard W.
Matrix Instruments Inc.
Schneck Thomas
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