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.

Date of Patent:
Jul. 11, 2017

Filed:

Sep. 17, 2014
Applicant:

Avc Technology Co., Ltd., Kadoma-shi, Osaka, JP;

Inventors:

Nobumichi Takaba, Hokkaido, JP;

Takayuki Tajiri, Hokkaido, JP;

Ippei Tahara, Hokkaido, JP;

Shingo Arikawa, Hokkaido, JP;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/041 (2006.01); G06F 3/044 (2006.01); G06F 3/05 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0418 (2013.01); G06F 3/044 (2013.01); G06F 3/0416 (2013.01); G06F 3/05 (2013.01); G06F 2211/902 (2013.01);
Abstract

A touch panel device () includes a panel main body () including a plurality of first electrodes (X) extending parallel to one another and a plurality of second electrodes (Y) intersecting with the first electrodes (X), and a detection section (). The detection section () includes a transmission section () for sequentially applying a driving signal to the first electrodes (X), and a current-voltage conversion section () configured to scan the second electrodes (Y) and convert a current flowing through the second electrode (Y) to a voltage signal, an AD conversion section () configured to sample the voltage signal and convert it to digital data, and a touch determination section () for determining a touch position from the converted digital data. The AD conversion section () samples the induced signal for a sampling period which occurs after a preset time which is determined for each of the first electrodes (X) elapses since the application of the driving signal and which includes a peak of a waveform of the induced signal.


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