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
  • Application No.: US12325721
    Application Date: 2008-12-01
  • Publication No.: US08368657B2
    Publication 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
Touch sensor panel using regional and local electrodes to increase number of sense locations
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.
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