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:
Mar. 15, 2016

Filed:

May. 22, 2012
Applicants:

Chun-lung Huang, Hsinchu, TW;

Po-yang Chen, Hsinchu, TW;

Chien-yung Cheng, Hsinchu, TW;

Po-sheng Shih, Hsinchu, TW;

Inventors:

Chun-Lung Huang, Hsinchu, TW;

Po-Yang Chen, Hsinchu, TW;

Chien-Yung Cheng, Hsinchu, TW;

Po-Sheng Shih, Hsinchu, TW;

Assignee:

Shih Hua Technology Ltd., Zhubei, Hsinchu County, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/044 (2006.01); G06F 3/041 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0416 (2013.01); G06F 3/044 (2013.01);
Abstract

A method for detecting a touch spot of the touch panel includes the following steps. The electrode pairs are scanned along the impedance direction to obtain an electrical signal curve for determining a first coordinate. A number of first driving electrodes and a number of second driving electrodes near the first coordinate are selected. The selected first driving electrodes are scanned to obtain a first sensing signal. The selected second driving electrodes are scanned to obtain a second sensing signal. A second coordinate is determined according to the first and second sensing signals. Finally, the touch spot is determined according to the first and second coordinates.


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