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, 1987
Filed:
Jul. 02, 1984
NEC Corporation, , JP;
Abstract
An apparatus for reading a bar code generally, and a Universal Product Code specifically, eliminates noise from spots on a blank area which is peripheral to the bar code. Each of the bar code characters has the same uniform width. The entire surface containing a bar code is scanned to read each of the code characters. The signal delivered from the scanning means successively indicates the widths of a white bar and a black bar adjacent thereto and the wdiths of a black bar and a white bar adjacent thereto, in order to alternately deliver width data corresponding to the adjacent white and black bars and to the adjacent black and white bars. These width signals are added and compared to the uniform width in order to deliver the output signal responsive to a sequential analysis of the width signals.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile