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:
Sep. 08, 2015
Filed:
Jun. 26, 2013
Panasonic Corporation, Osaka, JP;
Tomohide Ishigami, Osaka, JP;
Abstract
A code reading device includes a neighbor searching and voting unit that, for each of a part of dot marks located in a matrix displaced from virtual lattice points, votes on coordinate values of four neighboring dot marks, using each of the part of the dot marks as a reference point, in a plane; a direction detecting unit that determines first and second directions from the voting results; an order determining unit that determines a raster order for the part of the dot marks based on the directions; and a code detecting unit that detects a relative position of each of lattice points determined based on coordinate values of the part of the dot marks and the raster order, to a closest dot mark among the part of the dot marks according to the raster order, thereby encoding the part of the dot marks to provide the positional information.