发明授权
- 专利标题: Touch detection method, touch detection circuit, touch chip and electronic device
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申请号: US17460582申请日: 2021-08-30
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公开(公告)号: US11755148B2公开(公告)日: 2023-09-12
- 发明人: Hong Jiang , Guopao Li
- 申请人: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
- 申请人地址: CN Shenzhen
- 专利权人: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
- 当前专利权人: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
- 当前专利权人地址: CN Shenzhen
- 代理机构: Emerson, Thomson & Bennett, LLC
- 代理商 Roger D. Emerson
- 主分类号: G06F3/041
- IPC分类号: G06F3/041 ; G06F3/044 ; H03L7/22
摘要:
A touch detection method, a touch detection circuit, a touch chip and an electronic device. The touch detection method includes: receiving a real-time synchronization signal sent by a touch display panel; acquiring a frequency of a noise signal in a working environment of a touch chip; setting a frequency of a coding drive signal based on the frequency of the noise signal, generating the coding drive signal based on the frequency of the coding drive signal, and outputting the coding drive signal to a drive electrode of the touch display panel; generating a strobe signal based on the real-time synchronization signal; and receiving a signal of a sensing electrode of the touch display panel, and outputting a detection result based on the strobe signal and the signal of the sensing electrode.
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