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. 04, 1995
Filed:
Jul. 28, 1994
Applicant:
Inventor:
Christopher E Smith, Newtown, CT (US);
Assignee:
United Parcel Service of America, Inc., Atlanta, GA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
235462 ; 235463 ; 235494 ;
Abstract
A bar code reader locates and decodes a bar code symbol in a pixel image by searching along a selected scan line for a candidate quiet zone and then counting the bright/dark transitions that correspond to candidate bars and spaces. The reader determines whether the candidate quiet zone and candidate bars and spaces correspond to a bar code symbol, and, if so, decodes the symbol. When processing binary pixel images, the reader searches for candidate quiet zones and counts bright/dark transitions by analyzing the image one byte of pixels at a time.