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:
Oct. 28, 2014
Filed:
Jan. 16, 2012
Takashi Toyooka, Nagano-ken, JP;
Tetsuro Yamazaki, Nagano-ken, JP;
Kazuhisa Mizusako, Nagano-ken, JP;
Takashi Toyooka, Nagano-ken, JP;
Tetsuro Yamazaki, Nagano-ken, JP;
Kazuhisa Mizusako, Nagano-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A position detecting system includes an indicating device including a photodiode that detects timing of a light pulse and a transmission unit that transmits a signal representing the timing, a plurality of light sources that emit light pulses to areas acquired by dividing a screen into a plurality of parts at timings unique to the light sources, a reception unit that receives the signal representing the timing, and a control unit that detects a position of the indicating device based on the signal representing the timing.