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    • 13. 发明申请
    • Circular Touch Sensor
    • 圆形触摸传感器
    • US20080047765A1
    • 2008-02-28
    • US11928524
    • 2007-10-30
    • David Proctor
    • David Proctor
    • G06F3/044G06F3/041
    • G06F3/03547G06F3/0416
    • A circular touch sensor has three or more sensors arranged in an iris pattern. Each pad is defined by continuous edges that spiral outward about a center point. The unique geometric shape allows measurement of relative amounts of contact on adjoining sensors. In one implementation, the sensors measure relative capacitance of two or more sensors, thereby enabling high precision identification of the point of contact. With as few as three pads, the circular touch sensor is less expensive than traditional 12-pad to 16-pad circular sensors.
    • 圆形触摸传感器具有以虹膜图案布置的三个或更多个传感器。 每个垫片由围绕中心点向外螺旋的连续边缘限定。 独特的几何形状允许测量相邻传感器上的相对接触量。 在一个实现中,传感器测量两个或更多个传感器的相对电容,从而能够高度精确地识别接触点。 使用少至三个焊盘,圆形触摸传感器比传统的12焊盘至16焊盘圆形传感器便宜。
    • 15. 发明申请
    • Circular touch sensor
    • 圆形触摸传感器
    • US20060227117A1
    • 2006-10-12
    • US11102599
    • 2005-04-07
    • David Proctor
    • David Proctor
    • G09G5/00
    • G06F3/03547G06F3/0416
    • A circular touch sensor has three or more sensors arranged in an iris pattern. Each pad is defined by continuous edges that spiral outward about a center point. The unique geometric shape allows measurement of relative amounts of contact on adjoining sensors. In one implementation, the sensors measure relative capacitance of two or more sensors, thereby enabling high precision identification of the point of contact. With as few as three pads, the circular touch sensor is less expensive than traditional 12-pad to 16-pad circular sensors.
    • 圆形触摸传感器具有以虹膜图案布置的三个或更多个传感器。 每个垫片由围绕中心点向外螺旋的连续边缘限定。 独特的几何形状允许测量相邻传感器上的相对接触量。 在一个实现中,传感器测量两个或更多个传感器的相对电容,从而能够高度精确地识别接触点。 使用少至三个焊盘,圆形触摸传感器比传统的12焊盘至16焊盘圆形传感器便宜。