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.:

US 8487899 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 16, 2013

Filed:

Jul. 14, 2009
Applicant:

Chun-yu Chen, Hsinchu, TW;

Inventor:

Chun-Yu Chen, Hsinchu, TW;

Assignee:

Coretronic Corporation, Hsin-Chu, TW;

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

A capacitive-type touch panel and a touch-point detecting method thereof are provided. The capacitive-type touch panel includes a plurality of first-dimension sensing lines and a plurality of second-dimension sensing lines arranged crossing over one another and in a matrix. When detecting a first touch point and a second touch point existed on the capacitive-type touch panel at the same time by scanning the capacitive-type touch panel, locations of the first touch point and the second touch point are determined according to detected currents in the first-dimension sensing lines and the second-dimension sensing lines. Capacitances of each of the first-dimension sensing lines are gradually decreased along a first direction, and capacitances of each of the second-dimension sensing lines are gradually decreased along a second direction.


Find Patent Forward Citations

Chen, Chun-Yu. (2013). Capacitive-type touch panel and touch-point detecting method thereof (U.S. Patent No. 8487899). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8487899

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