Invention Grant
- Patent Title: Method and device for position detection
- Patent Title (中): 位置检测方法和装置
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Application No.: US14033872Application Date: 2013-09-23
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Publication No.: US08970552B2Publication Date: 2015-03-03
- Inventor: Chin-Fu Chang , Cheng-Han Lee , Chi-Hao Tang , Shun-Lung Ho
- Applicant: Egalax—Empia Technology Inc.
- Applicant Address: TW Taipei
- Assignee: Egalax—Empia Technology Inc.
- Current Assignee: Egalax—Empia Technology Inc.
- Current Assignee Address: TW Taipei
- Agency: WPAT, PC
- Agent Justin King
- Main IPC: G06F3/045
- IPC: G06F3/045 ; G01R27/26 ; G06F3/041 ; G06F3/044 ; G06F3/047

Abstract:
A method and device for position detection are disclosed. A self-capacitance detection can be performed by a sensing device. According to the result of the self-capacitance detection, a first mutual-capacitance detection can be performed for determining one or more first 1-D positions. According to the result of the first mutual-capacitance detection, a second mutual-capacitance detection can be performed for determining one or more second 1-D positions corresponding to each first 1-D position. One or more 2-D positions can be provided according to the one or more second 1-D positions corresponding to each first 1-D position. Besides, during the self-capacitance detection, the first mutual-capacitance detection, and the second mutual-capacitance detection, a touch related sensing information corresponding to a touch that covers a wide area can be neglected for palm rejection.
Public/Granted literature
- US20140022213A1 METHOD AND DEVICE FOR POSITION DETECTION Public/Granted day:2014-01-23
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