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. 01, 2014
Filed:
Nov. 01, 2011
Yuishi Takeno, Shizuoka-ken, JP;
Shinji Saegusa, Shizuoka-ken, JP;
Takuya Ogishima, Shizuoka-ken, JP;
Sadatoshi Oishi, Shizuoka-ken, JP;
Yuishi Takeno, Shizuoka-ken, JP;
Shinji Saegusa, Shizuoka-ken, JP;
Takuya Ogishima, Shizuoka-ken, JP;
Sadatoshi Oishi, Shizuoka-ken, JP;
Toshiba TEC Kabushiki Kaisha, Tokyo, JP;
Abstract
According to one embodiment, a coordinate recognizing apparatus includes plural light emitting elements, plural light receiving elements, a memory, and a controller. The memory stores, concerning plural pairs of the light emitting elements and the light receiving elements set in advance, reference values used for determination of blocking of a light path. The controller performs, concerning the respective pairs, actions for collecting, plural times, a difference between first intensity indicated by a detection signal output from the light receiving element, which is a pair of the light emitting element, in a state in which the light emitting element is caused to emit light and second intensity indicated by a detection signal output from the light receiving element during non-light emission of the light emitting element and updating the reference value of the pair stored in the memory using a minimum of differences collected plural times.