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. 31, 2017
Filed:
Apr. 22, 2014
Applicant:
Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;
Inventors:
Mutsumi Hamaguchi, Osaka, JP;
Shinji Shinjo, Osaka, JP;
Assignee:
SHARP KABUSHIKI KAISHA, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/0354 (2013.01); G06F 3/044 (2006.01); G06F 3/041 (2006.01);
U.S. Cl.
CPC ...
G06F 3/03545 (2013.01); G06F 3/044 (2013.01); G06F 3/0416 (2013.01);
Abstract
A touch panel system () according to one aspect of the invention includes: a stylus pen () including a drive circuit () that generates a first driving voltage based on a first code sequence and a second driving voltage based on a second code sequence, and a sensor circuit () that drives a pen point () with a multiplexed voltage obtained by multiplexing the first driving voltage and the second driving voltage; and a touch panel controller () that detects a position of the stylus pen () touching a touch panel.