Title:
【発明の名称】高次水平偏波シャー波伝搬を用いた音波式タッチポジションセンサー
Document Type and Number:
Japanese Patent JPH10506737
Kind Code:
A
Abstract:
A contact sensitive device and method of operation, comprising a member capable of supporting propagation of vibrations; at least one sensor mounted on the member for measuring vibrations in the member, wherein the at least one sensor transduces a vibration into an oscillating electrical waveform representing the vibration while preserving phase information represented therein; and a processor responsive to the oscillating electrical waveforms of the at least one sensor and analyzing at least the preserved phase information from the oscillating electrical waveform, to determine the location of the contact on the member. In this manner, for example, superposed signals can be distinguished and non-attenuating perturbations of the signal detected.
Inventors:
Kent Joel
Application Number:
JP53170896A
Publication Date:
June 30, 1998
Filing Date:
February 13, 1996
Export Citation:
Assignee:
Erotic Touch Systems, Inc.
International Classes:
G06F3/033; G06F3/041; G06F3/043; G08C21/00; G06F3/0488; H01H35/00; (IPC1-7): G08C21/00; G06F3/03; H01H35/00
Attorney, Agent or Firm:
Takayoshi Kusumoto (1 outside)