Invention Application
- Patent Title: TOUCH SENSING APPARATUS AND METHOD CAPABLE OF SUPPORTING HOVER SENSING
- Patent Title (中): 触摸感应装置和方法可支持手感传感
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Application No.: US14314867Application Date: 2014-06-25
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Publication No.: US20150029141A1Publication Date: 2015-01-29
- Inventor: Byeong Hak Jo , Moon Suk Jeong , Yong Il Kwon , Tah Joon Park
- Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
- Applicant Address: KR Suwon-Si
- Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
- Current Assignee Address: KR Suwon-Si
- Priority: KR10-2013-0089602 20130729
- Main IPC: G06F3/044
- IPC: G06F3/044

Abstract:
Disclosed herein is a touch sensing apparatus capable of supporting hover sensing, including: a plurality of capacitance-voltage converters (C-V converters) outputting different voltage values depending on a change in capacitance of each of the sensing electrodes; a plurality of integrators integrating output voltages of each of the C-V converters; a first multiplexer multiplexing outputs of the plurality of integrators; a second multiplexer multiplexing the outputs of the plurality of integrators; a first differential amplification unit for touch sensing receiving an output of the first multiplexer and an output of the second multiplexer; a second differential amplification unit for hover sensing receiving the output of the first multiplexer and the output of the second multiplexer; and a control unit sensing a touch event or a hover event, thereby removing a common noise to accurately sense both the touch event and the hover event.
Public/Granted literature
- US09389740B2 Touch sensing apparatus and method capable of supporting hover sensing Public/Granted day:2016-07-12
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