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:
Mar. 31, 1992
Filed:
Mar. 16, 1989
Roger W Call, Salt Lake City, UT (US);
Benjamin V Cox, Jr, Salt Lake City, UT (US);
Unisys Corporation, Blue Bell, PA (US);
Abstract
An image, of the type that is comprised of an array of pixels, is filtered by the steps of: (a) reading a respective group of pixels from the array for each individual pixel that is in the array, with each pixel group overlapping other pixel groups and consisting of pixels that are contiguous with the individual pixel; (b) quantizing each of the respective groups of pixels; (c) retrieving from a memory, a single pixel for each quantized group of pixels, with the single pixel being the result of a pre-performed transformation on the quantized group of pixels; and (d) concatenating the retrieved pixels to form the filter image.