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:
Dec. 04, 2012
Filed:
Dec. 15, 2009
Noriyuki Juni, Ibaraki, JP;
Noriyuki Juni, Ibaraki, JP;
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
Abstract
In an optical coordinate input apparatus, beams emitted from one light emitting element are simultaneously guided through a plurality of cores provided at a waveguide to edges on Y-side and X-side of light emitting sides of an operational area, a light receiving element group includes light receiving elements corresponding respectively to cores aligned on Y-side of light receiving sides and light receiving elements corresponding respectively to cores aligned on X-side of the light receiving sides of the operational area, a scan is performed on each of the light receiving elements sequentially so as to detect presence or absence of a light shielding signal, and a scan time for the scan of all the light receiving elements included in the light receiving element group is set to be not more than 1 ms.