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. 17, 2015
Filed:
Mar. 15, 2013
Princeton Technology Corporation, New Taipei, TW;
Chun-Hsiung Chen, New Taipei, TW;
Chieh Yung Tu, New Taipei, TW;
Chien-Hsien Tsai, New Taipei, TW;
Chia Sheng Chen, New Taipei, TW;
Princeton Technology Corporation, New Taipei, TW;
Abstract
The present invention discloses a touch-sensing method, applied to a touch-sensing circuit, wherein the touch-sensing circuit includes a detection circuit and a comparison circuit. The touch-sensing method includes: enabling a receiving node to be coupled to a ground during a first discharge period, wherein the receiving node is coupled between the detection circuit and the comparison circuit; enabling the receiving node to obtain a first reference voltage during a first charge period; enabling the receiving node to be coupled to the ground during a second discharge period; and enabling the receiving node to obtain a second reference voltage and producing a sensing result according to the first reference voltage and the second reference voltage by the comparison circuit during a second charge period, wherein the sensing result represents whether a touch event occurs at a first node of the touch-sensing circuit.