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. 21, 1984
Filed:
Nov. 25, 1981
Applicant:
Inventor:
Guy D Couturier, Beavercreek, OH (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K / ; H04N / ;
U.S. Cl.
CPC ...
382 41 ; 382 22 ; 382 54 ; 358166 ;
Abstract
The Sobel square root algorithm S={[(a+2b+c)-(g+2f+e)].sup.2 +[(a+2H+g)-(c+2d+e)].sup.2 }.sup.1/2, with 8-bit input data from a 3.times.3 window and 6-bit output is performed on a single VLSI chip, using a square table only 128.times.13 and a square root table only 1027 or 1032.times.6 in ROM. The random logic including adders and clock circuits are also on the same chip with the ROM tables.