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. 16, 2013
Filed:
Oct. 12, 2010
Toshiharu Nishino, Hamura, JP;
Tetsushi Yoshida, Tsukui-gun, JP;
Kunpei Kobayashi, Tachikawa, JP;
Makoto Iwasaki, Akishima, JP;
Toshiharu Nishino, Hamura, JP;
Tetsushi Yoshida, Tsukui-gun, JP;
Kunpei Kobayashi, Tachikawa, JP;
Makoto Iwasaki, Akishima, JP;
Casio Computer Co., Ltd., Tokyo, JP;
Abstract
An indicated position detecting apparatus includes a display module having a display screen, and a plurality of microphones to detect a contact sound to the display screen. The plurality of microphones are arranged at an outer peripheral portion of the display screen to be apart from each other. A time difference acquisition unit acquires arrival time differences of the contact sound between two microphones in each of two combinations of the plurality of microphones. A positional information acquisition unit derives two hyperbolas corresponding to the arrival time differences acquired by the time difference acquisition unit, each hyperbola having focal points at the two microphones in each of the two combinations of the plurality of microphones, and acquires an intersection of the two derived hyperbolas as information of a position where the contact sound is generated.