Invention Grant
US07714847B2 Capacitive touchpad having dual traces coupled with uneven spaced interlaced sensors
有权
具有双重迹线的电容式触摸板与不均匀隔开的隔行传感器耦合
- Patent Title: Capacitive touchpad having dual traces coupled with uneven spaced interlaced sensors
- Patent Title (中): 具有双重迹线的电容式触摸板与不均匀隔开的隔行传感器耦合
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Application No.: US11296218Application Date: 2005-12-08
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Publication No.: US07714847B2Publication Date: 2010-05-11
- Inventor: Chao-Hui Hsu , Yen-Chang Chiu
- Applicant: Chao-Hui Hsu , Yen-Chang Chiu
- Applicant Address: TW Hsinchu
- Assignee: Elan Microelectronics Corporation
- Current Assignee: Elan Microelectronics Corporation
- Current Assignee Address: TW Hsinchu
- Agency: Rosenberg, Klein & Lee
- Priority: TW93138805A 20041214
- Main IPC: G06F3/041
- IPC: G06F3/041
Abstract:
A capacitive touchpad comprises two traces with a plurality of first and second sensors coupled thereto respectively, and the first and second sensors are arranged interlaced and uneven spaced to each other. By detecting the capacitance variances produced by the sensors from the traces, phase leading or lagging Z-axis signals are generated to determine the moving direction of a finger sliding on the capacitive touchpad.
Public/Granted literature
- US20060125801A1 Capacitive touchpad having dual traces coupled with uneven spaced interlaced sensors Public/Granted day:2006-06-15
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