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    • 8. 发明授权
    • Pointing stick with top mounted z-axis sensor
    • 带顶置Z轴传感器的指点杆
    • US06239786B1
    • 2001-05-29
    • US09201207
    • 1998-11-30
    • Stephen W. BurryNelson T. ClarkRonald J. DedertMark GrubeTimothy L. HartiganDavid L. PooleDennis RaesnerLewis L. SeffernickRonald StuckeyEric B. TaylorRobert M. VandenBoom
    • Stephen W. BurryNelson T. ClarkRonald J. DedertMark GrubeTimothy L. HartiganDavid L. PooleDennis RaesnerLewis L. SeffernickRonald StuckeyEric B. TaylorRobert M. VandenBoom
    • G09G508
    • G06F3/0213G06F3/0338
    • A pointing stick for controlling the positioning, movement and operation of a cursor on the display screen. Specifically, there is a pointing stick that both directs a cursor and acts as the activation button for selecting items on the display screen by tapping on the pointing stick instead of clicking on a mouse button. Uniquely, the device is made of a shaft (12) having a longitudinal length oriented along a first axis (39) and having a top surface that is perpendicular to the first axis, there is a vertical force sensor (59, or 71), mounted on the top surface of the shaft, for sensing a vertical oriented force applied to the shaft along the first axis. Cap (24), has a cavity (81) with a top surface (79) therein, where the top surface of the shaft is positioned within the cavity and spaced from and juxtaposed to the top surface of the cavity. In one embodiment the vertical sensor includes first and second electrically conductive pads that are electrically isolated from each other. The vertical sensor also has a flexible conductive layer positioned next to the top surface of the cavity of the cap. Additionally, the vertical sensor has an electrically insulative spacer (78) shaped to position the first and second pads away from the flexible conductive layer. In a second embodiment, the vertical sensor comprises a pressure sensitive layer (60) located on the top surface of the shaft. Additionally, the alternative vertical sensor has a strain concentrator, shaped and positioned to concentrate a z-axis oriented force applied to the cap to effect the electrical conductivity of the pressure sensitive layer.
    • 用于控制显示屏上光标的定位,移动和操作的指示杆。 具体来说,有一个指点杆既指向光标,也可以作为激活按钮,通过点击指点杆而不是单击鼠标按钮来选择显示屏幕上的项目。 独特地,该装置由具有沿着第一轴线(39)定向并且具有垂直于第一轴线的顶表面的纵向长度的轴(12)制成,存在垂直力传感器(59或71) 安装在轴的顶表面上,用于感测沿着第一轴施加到轴的垂直取向力。 盖(24)具有其中具有顶表面(79)的空腔(81),其中轴的顶表面位于空腔内并与空腔的顶表面间隔开并且并置。 在一个实施例中,垂直传感器包括彼此电隔离的第一和第二导电焊盘。 垂直传感器还具有靠近盖的腔的顶表面定位的柔性导电层。 另外,垂直传感器具有形状为将第一和第二焊盘定位成远离柔性导电层的电绝缘间隔件(78)。 在第二实施例中,垂直传感器包括位于轴的顶表面上的压敏层(60)。 此外,备选的垂直传感器具有应变集中器,其形状和定位以集中施加到盖的z轴取向的力以实现压敏层的导电性。