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:
Jul. 22, 2014
Filed:
Mar. 23, 2012
Lianghua MO, Shenzhen, CN;
Huaiyi Xu, Shenzhen, CN;
Jincheng Tian, Shenzhen, CN;
Huadong Dai, Shenzhen, CN;
Xinxi Jiang, Shenzhen, CN;
Hua LI, Shenzhen, CN;
Lianghua Mo, Shenzhen, CN;
Huaiyi Xu, Shenzhen, CN;
Jincheng Tian, Shenzhen, CN;
Huadong Dai, Shenzhen, CN;
Xinxi Jiang, Shenzhen, CN;
Hua Li, Shenzhen, CN;
Focaltech Systems, Ltd., Grand Caymen, KY;
Abstract
The embodiments of the present invention disclose a touch stylus, a touch detection method and a touch detection system, which are suitable to be used for writing on a capacitive touch screen and can increase the success rate of touch. A method according to an embodiment of the present invention includes: receiving, by a sensing electrode, a square wave signal sent from a stylus tip of a touch stylus; performing a detection process on the square wave signal, by a sensing detection unit, the sensing detection unit having a clock synchronized with a clock of the touch stylus; determining, by a signal processing unit, whether a touch event occurs according to the square wave signal processed with the detection process; and calculating position coordinates of the touch event and reporting the position coordinates to a system control unit, by the signal processing unit, if a touch event occurs.