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:
Nov. 19, 2019
Filed:
May. 21, 2018
Shenzhen Goodix Technology Co., Ltd., Shenzhen, CN;
SHENZHEN GOODIX TECHNOLOGY CO., LTD., Shenzhen, CN;
Abstract
Embodiments of the present application provide a method and apparatus for determining a touch position of a capacitive screen. The method includes: acquiring an output signal of each capacitor node, and orthogonally demodulating the output signal to acquire a corresponding orthogonal component Q; judging whether corresponding orthogonal components Q of some of the capacitor nodes increase relative to a reference orthogonal component Q in an underwater mode, and whether corresponding orthogonal components Q of some other capacitor nodes decrease relative to the reference orthogonal component Q in the underwater mode; and determining that the capacitive screen is touched, and determining the touch position according to coordinates of the capacitor node whose orthogonal component Q decreases if the judgment indicates a positive result.