Invention Grant
US08392486B2 Method for determining the position of impacts 有权
确定影响位置的方法

  • Patent Title: Method for determining the position of impacts
  • Patent Title (中): 确定影响位置的方法
  • Application No.: US11813113
    Application Date: 2004-12-29
  • Publication No.: US08392486B2
    Publication Date: 2013-03-05
  • Inventor: Ros Kiri Ing
  • Applicant: Ros Kiri Ing
  • Applicant Address: US CA Menlo Park
  • Assignee: Elo Touch Solutions, Inc.
  • Current Assignee: Elo Touch Solutions, Inc.
  • Current Assignee Address: US CA Menlo Park
  • Agency: Alston & Bird LLP
  • International Application: PCT/EP2004/014908 WO 20041229
  • International Announcement: WO2006/069596 WO 20060706
  • Main IPC: G06E1/04
  • IPC: G06E1/04
Method for determining the position of impacts
Abstract:
A method for determining the position of impacts on an object comprising two acoustic sensors, and N active areas of said object, comprises the steps of: (a) receiving two acoustic signals S1(t) and S2(t); (b) calculating a sample signature function SIGS(ω)=S1(ω)−S2(ω)*, where S1(ω) and S2(ω) are the respective Fourier transforms of S1(t) and S2(t), (c) comparing SIGS(ω) with N predetermined reference signature functions SIGR,(ω) corresponding to the predetermined area j for j from 1 to N; (d) determining the active area in which the impact occurred, on the basis of the comparison of step (c).
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