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:
Oct. 22, 2013
Filed:
Jan. 04, 2010
I-hau Yeh, Taipei, TW;
Chi-tein Yeh, Chiayi, TW;
Tsun-min Wang, Changhua, TW;
Chun-chung Huang, Hsinchu, TW;
Chung-han Cheng, Kaohsiung, TW;
Hung-ming Huang, Sanchong, TW;
I-Hau Yeh, Taipei, TW;
Chi-Tein Yeh, Chiayi, TW;
Tsun-Min Wang, Changhua, TW;
Chun-Chung Huang, Hsinchu, TW;
Chung-Han Cheng, Kaohsiung, TW;
Hung-Ming Huang, Sanchong, TW;
Elan Microelectronics Corporation, Hsinchu, TW;
Abstract
An electronic stylus emits an excitation signal to apply to a trace of a capacitive touchpad module near a touch point when the electronic stylus touches the capacitive touchpad module, so as to change a waveform of a charging/discharging signal in the trace, and depending on the waveform variation, the capacitive touchpad module can identify the touch point.