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:
Jan. 20, 2015
Filed:
May. 31, 2012
Tamiyo Nakabayashi, Osaka, JP;
Shinichi Yoshida, Osaka, JP;
Shunsuke Nagasawa, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A touch panel system can accurately detect a position of an indicator as distinguished from noise, an electronic information device, and an indicator position detecting method are provided. An indicator position detecting portion detects a position of an indicator, which is in contact with or close to a detecting surface P, based on either one of a first or a second capacitance signal. The first capacitance signal is obtained in a first driving mode in which a first drive signal is applied to first signal lines and a first sense signal appearing on second signal lines is applied to a sense signal processing portion. The second capacitance signal is obtained in a second driving mode in which a second drive signal is applied to the second signal lines, and a second sense signal appearing on the first signal lines is applied to the sense signal processing portion.