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:
Jun. 16, 1998
Filed:
Sep. 17, 1996
Theodore Heske, III, Suwanee, GA (US);
Denis M Blanford, Duluth, GA (US);
Barry M Mergenthaler, Lawrenceville, GA (US);
NCR Corporation, Dayton, OH (US);
Abstract
A method and apparatus are disclosed for scanning for a defective bar code having a plurality of alternating bars and spaces of varying widths. A bar code is scanned for providing a bar code signature which is used for measuring the bar and space width as multiples of a minimum width module. By detecting fractional width of adjoining bars and spaces, error in the bar code is correspondingly detected. The measured bar code signature may be corrected by respectively increasing and decreasing the fractional width of an adjoining bar and space for obtaining substantially integer multiple modules thereof. The corrected signature may then be decoded.