Title:
TOUCH DETECTION METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/165944
Kind Code:
A1
Abstract:
A touch detection method and system. The touch detection method comprises: performing spread spectrum processing on a drive signal, so as to generate a spread spectrum signal (101); outputting the spread spectrum signal to a drive side of a touchscreen (102); receiving a coupling signal from a sensing end of the touchscreen (103), the coupling signal being formed by coupling the spread spectrum signal received by the drive end to the sensing end; and performing despreading processing on the coupling signal, so as to obtain a touch detection signal (104). By means of the spread spectrum technology, the accuracy of touchscreen position detection is improved, so as to enhance the anti-interference capability of a touch device.
More Like This:
Inventors:
YANG YANG (CN)
Application Number:
PCT/CN2017/076955
Publication Date:
September 20, 2018
Filing Date:
March 16, 2017
Export Citation:
Assignee:
SHENZHEN GOODIX TECH CO LTD (CN)
International Classes:
G06F3/044
Foreign References:
| CN105786241A | 2016-07-20 | |||
| US8791907B2 | 2014-07-29 | |||
| CN102707855A | 2012-10-03 |
Other References:
See also references of EP 3407172A4
Attorney, Agent or Firm:
SHANGHAI CHENHAO INTELLECTUAL PROPERTY LAW FIRM GENERAL PARTNERSHIP (CN)
Download PDF: