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. 24, 2012
Filed:
Mar. 08, 2010
Applicants:
Eunice Poon, Scarborough, CA;
Jia LI, North York, CA;
Seungsik Kwak, Oakville, CA;
Mikhail Brusnitsyn, North York, CA;
Inventors:
Eunice Poon, Scarborough, CA;
Jia Li, North York, CA;
Seungsik Kwak, Oakville, CA;
Mikhail Brusnitsyn, North York, CA;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 7/10 (2006.01); G06K 19/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention is directed towards systems and methods for decoding a bar code. Decoding the bar code includes segmenting the bar code into black tokens, white tokens and gray boundary pixels. Decoding the bar code also includes calculating a boundary position of each token with sub-pixel positional accuracy using intensity values of pixels in a boundary region.