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. 30, 2019
Filed:
Nov. 13, 2013
Mitsubishi Electric Corporation, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A pattern presence/absence evaluation value generation unit () determines the presence or absence of a pattern by comparing sensing data (d) and correction data (d). Operating according to a pattern presence/absence evaluation value (d) obtained from the pattern presence/absence evaluation value generation unit (), a correction data updating unit () outputs correction data (d) updated by weighted addition of the sensing data (d) and the correction data (d), increasing the weighting of the correction data (d) when an image pattern is present and increasing the weighting of the sensing data (d) when the image pattern is absent. A correction data subtraction unit () subtracts the correction data (d) from the sensing data (d) and outputs output sensing data (d). It consequently becomes possible to reduce the effect of sensing signal level variations of the sensing signal generated within the interval of reading of the object being sensed, and read the pattern accurately.