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:
Feb. 05, 2013
Filed:
Jun. 15, 2010
Chien-pang Chien, Taipei, TW;
Chih-feng Chien, Taipei, TW;
Chou-liang Liu, Taipei, TW;
Hung-ming Lin, Taipei, TW;
Chen-ming Chang, Taipei, TW;
Shi-jie Zhang, Taipei, TW;
Chien-Pang Chien, Taipei, TW;
Chih-Feng Chien, Taipei, TW;
Chou-Liang Liu, Taipei, TW;
Hung-Ming Lin, Taipei, TW;
Chen-Ming Chang, Taipei, TW;
Shi-Jie Zhang, Taipei, TW;
Primax Electronics Ltd., Taipei, TW;
Abstract
A touchpad controlling method and a touch device using such a method are provided. The touch device is applied to an electronic appliance. The touch device includes a touchpad and a coordinate transformation program. The touchpad is used for detecting a number of touching points in response to the touching gesture on the touchpad and the position of each touching point. If the number of touching points is equal to 1, the electronic appliance is operated in a relative coordinate mode. Whereas, if the number of touching points is greater than 1, the electronic appliance is operated in an absolute coordinate mode.