Title:
SIGNAL DETECTION METHOD AND DEVICE, AND TOUCH CHIP
Document Type and Number:
WIPO Patent Application WO/2021/226886
Kind Code:
A1
Abstract:
A signal detection method and device, and a touch chip. The method is used to detect an active pen and/or a finger on a touch screen. The touch screen is provided with a connection member used to secure the active pen. A detection circuit is provided at the connection member. The method comprises: determining, according to a signal output by the detection circuit, whether the active pen is secured at the touch screen (210); if it is determined that the active pen is secured at the touch screen, switching a detection mode of the touch screen to a first detection mode (220), wherein detection is only performed for a finger in the first detection mode; and if it is determined that the active pen is not secured at the touch screen, switching the detection mode of the touch screen to a second detection mode (230), wherein detection is performed for the active pen and a finger in the second detection mode. The method realizes the function of an active pen and meets the requirement of touch operations to be performed on a touch screen by users.
Inventors:
CHEN XIANPENG (CN)
Application Number:
PCT/CN2020/090088
Publication Date:
November 18, 2021
Filing Date:
May 13, 2020
Export Citation:
Assignee:
SHENZHEN GOODIX TECH CO LTD (CN)
International Classes:
G06F3/041; G06F3/044
Foreign References:
| CN103870028A | 2014-06-18 | |||
| CN104571732A | 2015-04-29 | |||
| CN106325643A | 2017-01-11 | |||
| US20190113986A1 | 2019-04-18 |
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
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