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    • 14. 发明申请
    • SURFACE CAPACITANCE WITH AREA GESTURES
    • 表面电容与面积
    • US20100328253A1
    • 2010-12-30
    • US12719717
    • 2010-03-08
    • Keith PaulsenJared G. Bytheway
    • Keith PaulsenJared G. Bytheway
    • G06F3/045
    • G06F3/044G06F3/045G06F3/04883G06F2203/04808
    • A surface capacitance touch sensitive surface (or “surface cap panel”) suitable for use in a touch screen or touchpad, wherein the surface cap panel has a substantially even coating of a conductive material on a non-conductive substrate and then covering the conductive material with a dielectric material, wherein a novel current measuring circuit reduces the effect of stray capacitance on the accuracy of a current measurement so that the relative X and Y position of an object on the surface cap panel can be determined using simple ratio equations, and wherein measuring the charge transfer rate in a measuring circuit, in addition to the total charge transfer for each toggle event, enables the location of two objects to be identified on the surface cap panel, wherein the charge transfer rate is used to determine the distance between two points of contact on the surface cap panel, and wherein height and width information related to the distance between the two points of contact can now be determined by doubling the number of electrodes at the corners of the surface cap panel.
    • 适用于触摸屏或触摸板的表面电容触敏表面(或“表面盖板”),其中表面盖板在非导电衬底上具有基本均匀的导电材料涂层,然后覆盖导电材料 使用电介质材料,其中新颖的电流测量电路降低杂散电容对电流测量的精度的影响,使得可以使用简单的比率方程来确定表面盖板上的物体的相对X和Y位置,并且其中 测量测量电路中的电荷转移速率除了每个肘节事件的总电荷转移之外,还能够在表面盖板上识别两个物体的位置,其中电荷转移速率用于确定两个 表面盖板上的接触点,并且其中与两个接触点之间的距离相关的高度和宽度信息不能 可以通过将表面盖板的角部处的电极的数量加倍来确定。
    • 19. 发明授权
    • Surface capacitance with area gestures
    • 表面电容与区域手势
    • US08754869B2
    • 2014-06-17
    • US12719717
    • 2010-03-08
    • Keith PaulsenJared G. Bytheway
    • Keith PaulsenJared G. Bytheway
    • G06F3/044
    • G06F3/044G06F3/045G06F3/04883G06F2203/04808
    • A surface capacitance touch sensitive surface (or “surface cap panel”) suitable for use in a touch screen or touchpad, wherein the surface cap panel has a substantially even coating of a conductive material on a non-conductive substrate and then covering the conductive material with a dielectric material, wherein a novel current measuring circuit reduces the effect of stray capacitance on the accuracy of a current measurement so that the relative X and Y position of an object on the surface cap panel can be determined using simple ratio equations, and wherein measuring the charge transfer rate in a measuring circuit, in addition to the total charge transfer for each toggle event, enables the location of two objects to be identified on the surface cap panel, wherein the charge transfer rate is used to determine the distance between two points of contact on the surface cap panel, and wherein height and width information related to the distance between the two points of contact can now be determined by doubling the number of electrodes at the corners of the surface cap panel.
    • 适用于触摸屏或触摸板的表面电容触敏表面(或“表面盖板”),其中表面盖板在非导电衬底上具有基本均匀的导电材料涂层,然后覆盖导电材料 使用电介质材料,其中新颖的电流测量电路降低杂散电容对电流测量的精度的影响,使得可以使用简单的比率方程来确定表面盖板上的物体的相对X和Y位置,并且其中 测量测量电路中的电荷转移速率除了每个肘节事件的总电荷转移之外,还能够在表面盖板上识别两个物体的位置,其中电荷转移速率用于确定两个 表面盖板上的接触点,并且其中与两个接触点之间的距离相关的高度和宽度信息不能 可以通过将表面盖板的角部处的电极的数量加倍来确定。