Invention Grant
US09280245B2 Touch panel sensor having dual-mode capacitive sensing for detecting an object
有权
具有用于检测物体的双模式电容感测的触摸面板传感器
- Patent Title: Touch panel sensor having dual-mode capacitive sensing for detecting an object
- Patent Title (中): 具有用于检测物体的双模式电容感测的触摸面板传感器
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Application No.: US14182838Application Date: 2014-02-18
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Publication No.: US09280245B2Publication Date: 2016-03-08
- Inventor: Ali Ekici , Ozan Erdogan , Stephen C. Gerber , Syed F. Ahmad
- Applicant: Qualcomm Technologies, Inc.
- Applicant Address: US CA San Diego
- Assignee: Qualcomm Technologies, Inc.
- Current Assignee: Qualcomm Technologies, Inc.
- Current Assignee Address: US CA San Diego
- Agency: Weaver Austin Villeneuve & Sampson, LLP
- Main IPC: G06F3/044
- IPC: G06F3/044 ; G06F3/041

Abstract:
An apparatus configured to determine an approximate position of an object utilizing mutual-capacitance sensing capabilities during a first mode of operation and determining one or more attributes of the object utilizing self-capacitance sensing capabilities during a second mode of operation is disclosed. The apparatus includes a touch panel controller configured to operatively couple to a touch panel sensor. The touch panel sensor includes a plurality of drive electrodes and at least one sense electrode. A plurality of nodes are formed at the intersections of the plurality of drive electrodes and the at least one sense electrode. The touch panel controller is configured to determine an approximate position of an object performing a touch event over the touch panel sensor during the first mode of operation and to determine one or more attributes of the object during the second mode of operation.
Public/Granted literature
- US20140240280A1 TOUCH PANEL SENSOR HAVING DUAL-MODE CAPACITIVE SENSING FOR DETECTING AN OBJECT Public/Granted day:2014-08-28
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