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:
Dec. 17, 2013
Filed:
Jun. 19, 2012
Yang Yang, Toronto, CA;
Yang Yang, Toronto, CA;
Seiko Epson Corporation, Tokyo, JP;
Abstract
For recognizing two-width barcodes having N bars and N spaces, a first class (cluster) A of wide bars or spaces contains n elements Array [] to Array [n], and a second class (cluster) B of narrow bars or spaces contains N−n elements Array [n+1] to Array [N] are created. Looping n times where n=1 to N−1, a mean value μto of class A and a mean value μof class B are calculated, a between-class difference D=μ−μis calculated, a value of n when D achieves a maximum value is recorded, and if n=M when D achieves the maximum value, then the N bars or spaces are recognized as a two-width barcode; otherwise, the N bars or spaces are determined as not a two-width barcode.