Invention Grant
US08368657B2 Touch sensor panel using regional and local electrodes to increase number of sense locations
有权
使用区域和本地电极触摸传感器面板,以增加感觉位置的数量
- Patent Title: Touch sensor panel using regional and local electrodes to increase number of sense locations
- Patent Title (中): 使用区域和本地电极触摸传感器面板,以增加感觉位置的数量
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Application No.: US12325721Application Date: 2008-12-01
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Publication No.: US08368657B2Publication Date: 2013-02-05
- Inventor: Rodrigo L. Borras
- Applicant: Rodrigo L. Borras
- Applicant Address: US TX Austin
- Assignee: Freescale Semiconductor, Inc.
- Current Assignee: Freescale Semiconductor, Inc.
- Current Assignee Address: US TX Austin
- Agent Gary Stanford
- Main IPC: G06F3/041
- IPC: G06F3/041

Abstract:
An input sensor for an electronic device which includes a touch sensor panel, multiple electrodes and a sensor circuit. The electrodes include multiple regional electrodes and multiple local electrodes. Each regional electrode covers a corresponding region of the touch sensor panel and each local electrode includes multiple pads including one pad located within each of the regional electrodes. The electrodes are distributed so that a touch anywhere across the touch sensor panel is detected by at least one regional electrode and at least one local electrode. A sensor circuit determines a value for each of the electrodes indicating relative change, and compares relative values of the electrodes to identify a location of a touch of the touch sensor panel. The regional electrodes are used to determine a region of a touch and the local electrodes are used to determine a more specific touch location within the determined region.
Public/Granted literature
- US20100134422A1 TOUCH SENSOR PANEL USING REGIONAL AND LOCAL ELECTRODES TO INCREASE NUMBER OF SENSE LOCATIONS Public/Granted day:2010-06-03
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