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:
Jul. 28, 1992
Filed:
Jul. 13, 1989
Hiroyoshi Tsuchiya, Kawasaki, JP;
Atsuharu Yamamoto, Kawasaki, JP;
Kunio Sannomiya, Atsugi, JP;
Hiroaki Kotera, Kawasaki, JP;
Katsuo Nakazato, Tokyo, JP;
Mikio Fujita, Yokohama, JP;
Shigeo Komizo, Tokyo, JP;
Abstract
An apparatus for receiving input data values representing an array of picture elements of a source image containing one or more bar code regions, whereby the input data values are converted to bi-level values representing black or white states which are stored in an image memory, while in addition the bi-level values are processed to obtain data representing an image in which a 'skeleton' central portion of the bar code region appears as an all-black region, while background black regions are eliminated. A central position and the slope of a central axis of the bar code region are computed based on that 'skeleton' region, and data values in the image memory which conform to the central axis are then read out, to read the bar code data.