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:
May. 19, 2015
Filed:
Oct. 26, 2013
Applicant:
Symbol Technologies, Inc., Schaumburg, IL (US);
Inventor:
Wanli Chi, Stony Brook, NY (US);
Assignee:
Symbol Technologies, Inc., Holtsville, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 7/10 (2006.01);
U.S. Cl.
CPC ...
G06K 7/10831 (2013.01); G06K 7/10732 (2013.01);
Abstract
A method of decoding a Direct Part Marking (DPM) indicia. The method includes: (1) generating a polarized illumination light; (2) illuminating the DPM indicia with the polarized illumination; (3) detecting light scattered from the DPM indicia through a linear polarizer with an imaging sensor while the DPM indicia is illuminated by the polarized illumination to capture an image of the DPM indicia though an imaging lens while preventing at least 80% of onetime scattered light caused by the target object from entering the imaging lens; and (4) processing the image of the DPM indicia to decode the DPM indicia.