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:
Apr. 17, 2001
Filed:
Nov. 16, 1998
Claudio Saporetti, Bologna, IT;
Stefano Amorosi, Bologna, IT;
Datalogic S.p.A., , IT;
Abstract
A method of locating an optical code of the maxicode type wherein a central target element comprises three concentric black rings separated by two white annular spaces and a white circular central space defining the center of the target element. The method includes the steps of: acquiring and binary-coding an image of the optical code; examining rows and columns of the binary-coded image, each row or column having black elements, each defined by at least one elementary representation unit of a first binary value, and white elements, each defined by at least one elementary representation unit of a second binary value; performing a sequence control step to locate, in each examined row or column of the image, at least one predetermined sequence of white and black elements; and performing an assigning step in which the rows or columns in the image containing a sequence of white and black elements corresponding to the predetermined sequence are recognized as intersecting the center of the target element.