• Patent Title: Apparatus and method for detecting a touch
  • Application No.: US14349759
    Application Date: 2011-11-17
  • Publication No.: US10067611B2
    Publication Date: 2018-09-04
  • Inventor: Sung-Sik Nam
  • Applicant: Sung-Sik Nam
  • Applicant Address: KR Seongnam-si, Gyeonggi-do
  • Assignee: Melfas Inc.
  • Current Assignee: Melfas Inc.
  • Current Assignee Address: KR Seongnam-si, Gyeonggi-do
  • Agency: Fenwick & West LLP
  • Priority: KR10-2011-0101432 20111005
  • International Application: PCT/KR2011/008786 WO 20111117
  • International Announcement: WO2013/051752 WO 20130411
  • Main IPC: G06F3/044
  • IPC: G06F3/044 G06F3/041
Apparatus and method for detecting a touch
Abstract:
There is disclosed an apparatus for detecting touch including a touch element comprising a plurality of touch detecting electrodes arranged therein, a touch element controller for acquiring detection signals from the touch detection electrodes and determining presence of touch in the touch element, wherein the touch element controller includes a receiving unit for receiving the detection signals from the touch detection electrodes and grouping the detection signals into one or more detection signal groups, a memory for storing a detection signal value limit, a signal extracting unit for extracting the maximum detection value out of the detection signal values of the detection for each of the detection signals, a calculating unit for calculating an adjustment variable by deducting the detection signal value limit from the maximum detection signal value for each of the detection groups, and a touch determination unit for determining presence of touch in the touch element, using the adjustment variable.
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