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:
Aug. 05, 2014
Filed:
Feb. 11, 2009
Ryoichi Tsuzaki, Kanagawa, JP;
Tsutomu Harada, Kanagawa, JP;
Kazunori Yamaguchi, Kanagawa, JP;
Mitsuru Tateuchi, Kanagawa, JP;
Ryoichi Tsuzaki, Kanagawa, JP;
Tsutomu Harada, Kanagawa, JP;
Kazunori Yamaguchi, Kanagawa, JP;
Mitsuru Tateuchi, Kanagawa, JP;
Japan Display West Inc., Chita-gun, Aichi-ken, JP;
Abstract
An HPF eliminates an image of an object which is not to be detected from a captured image, thereby obtaining an HPF image. A binarizing unit performs a binarizing process on the HPF image, thereby generating a binary image. A peak detector extracts, using the binary image as a mask, an image of a region corresponding to an opening of the mask from the captured image. From the image, a peak value and the position of a peak pixel are detected. A determining unit determines whether an object to be detected is in contact with the display surface or not on the basis of the relation between the difference and the threshold. Using the detection result and the determination result in the determining unit, a position deriving unit derives the position on the display surface, of the object to be detected which is in contact with the display surface.