发明授权
US6137474A Coordinate and switching input apparatus without additional elements for detecting a switching operation 失效
没有用于检测切换操作的附加元件的坐标和切换输入装置

  • 专利标题: Coordinate and switching input apparatus without additional elements for detecting a switching operation
  • 专利标题(中): 没有用于检测切换操作的附加元件的坐标和切换输入装置
  • 申请号: US885709
    申请日: 1997-06-30
  • 公开(公告)号: US6137474A
    公开(公告)日: 2000-10-24
  • 发明人: Masaru Komatsu
  • 申请人: Masaru Komatsu
  • 申请人地址: JPX Tokyo
  • 专利权人: Alps Electric Co., Ltd.
  • 当前专利权人: Alps Electric Co., Ltd.
  • 当前专利权人地址: JPX Tokyo
  • 优先权: JPX8-171162 19960701
  • 主分类号: G06F3/038
  • IPC分类号: G06F3/038 G09G5/08 G06F3/033
Coordinate and switching input apparatus without additional elements for
detecting a switching operation
摘要:
A coordinate input apparatus is provided which is capable of detecting a switching operation of a stick-type operation section without providing a specific sensor and/or circuit element for detecting a switching operation. The coordinate input apparatus includes a stick-type operation section, pressure sensor sections for detecting operational loads in directions intersecting at right angles to each other when the operation section is operated and outputting the detected operational loads as load data, a coordinate computation section for computing the amount of cursor movement in directions intersecting at right angles to each other corresponding to the size of the operational load from the load data, a storage section for storing load data when load data is sampled at a predetermined time interval, a peak value detection section for computing the peak value of the stored load data of the storage section, a time measurement section for measuring the time during which the stored load data continuously exceeds a threshold value, an inclination computation section for computing the load change inclination value per unit time from the stored load data, and an operation determination section for determining whether the operation of the operation section is a normal pressing operation or a switching operation on the basis of the peak value, the threshold-value exceeding time, and the value of the load change inclination.
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