The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 16, 1988
Filed:
Jan. 27, 1987
Bala S Manian, Saratoga, CA (US);
Matrix Instruments Inc., Orangeburg, NY (US);
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.