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:
Jun. 09, 2015
Filed:
Aug. 11, 2011
Takashi Izumi, Nara, JP;
Kazuto Miyazaki, Daito, JP;
Takashi Izumi, Nara, JP;
Kazuto Miyazaki, Daito, JP;
KYOCERA Corporation, Kyoto, JP;
Abstract
A mobile phonehaving a capacitive touchpad unitincludes a touch sensor circuitthat outputs measurement values each indicating a capacitance of the touchpad unit, a computing unitthat computes a sensor output value based on each measurement output from the touch sensor circuit, a calibration coefficient updating unitthat updates the sensor output value by updating a calibration coefficient so as to be equal to a predetermined reference value, a judging unitthat detects a contact based on the sensor output values, and a judgment threshold switching unitthat causes the judging unitto use a provisional contact-judging unit for a time period starting when the update occurs during the time that the user's face is in contact with the touchpad unitand ending when it is judged that the touch to the touchpad unitis released.