Capacitive two dimensional tablet with single conductive layer
    1.
    发明授权
    Capacitive two dimensional tablet with single conductive layer 失效
    具有单导电层的电容二维片

    公开(公告)号:US4087625A

    公开(公告)日:1978-05-02

    申请号:US755273

    申请日:1976-12-29

    CPC分类号: G06F3/044

    摘要: A new capacitive tablet has a single layer in which electrodes provide capacitive coupling with a pen to produce signals that correspond to the X and Y dimensions of the position of the pen on the tablet. The electrodes in the single layer are in the form of pairs of complementary shaped, closely adjacent, conductive elements that extend in the Y dimension of the tablet. For sensing the pen position in the Y dimension, an alternating voltage is applied between the two elements of a pair and the pen receives a signal that is a function of the pen position in the Y dimension. The tablet includes a number of such pairs, each having a different X dimension position, and for sensing the pen position in the X dimension, the two electrodes of a pair are given an alternating voltage that differs progressively across the X dimension of the tablet.

    摘要翻译: 新的电容式平板电脑具有单层,其中电极提供与笔的电容耦合以产生对应于平板电脑上笔的位置的X和Y尺寸的信号。 单层中的电极是在片剂的Y维度上延伸的成对的互补形状,紧密相邻的导电元件的形式。 为了感测Y尺寸中的笔位置,在一对的两个元件之间施加交流电压,并且笔接收作为Y尺寸中的笔位置的函数的信号。 平板电脑包括多个这样的对,每个具有不同的X维度位置,并且为了感测X维度中的笔位置,一对的两个电极被给予交替电压,该交替电压逐渐跨越平板电脑的X维度而不同。