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 9182849 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 10, 2015

Filed:

Jul. 31, 2012
Applicants:

Tzu-hsuan Huang, Taipei, TW;

Chih-yin Chiang, Nantou County, TW;

Ju-yi Hsieh, Taoyuan County, TW;

Inventors:

Tzu-Hsuan Huang, Taipei, TW;

Chih-Yin Chiang, Nantou County, TW;

Ju-Yi Hsieh, Taoyuan County, TW;

Assignee:

Chunghwa Picture Tubes, Ltd., Longtan Dist., Taoyuan, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/041 (2006.01); G06F 3/044 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0418 (2013.01); G06F 3/044 (2013.01);
Abstract

A capacitive touch system includes a touch panel, a detection circuit, and a microprocessor. The touch panel includes a plurality of scan areas. Each scan area of the plurality of scan areas includes a plurality of sensing units. The detection circuit is coupled to the touch panel for utilizing the Wheatstone bridge principle to transmit driving signals to the plurality of scan areas in turn to generate a detection result corresponding to each scan area of the plurality of scan areas according to a predetermined timing. The microprocessor is used for generating the predetermined timing to the detection circuit, and determining whether each area is touched according to a detection result corresponding to each scan area.


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Huang, Tzu-Hsuan. (2015). Capacitive touch system and method of operating a capacitive touch system (U.S. Patent No. 9182849). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9182849

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