公开(公告)号：US4423286A

公开(公告)日：1983-12-27

申请号：US400511

申请日：1982-07-21

申请人： Gary A. Bergeron

发明人： Gary A. Bergeron

IPC分类号： G01B7/00 ,  G01D5/12 ,  G06F3/033 ,  G06F3/046 ,  G06K11/06 ,  G08C21/00

CPC分类号： G06F3/046

摘要： A digitizing system includes a first plurality of spaced parallel grid conductors and a second plurality of spaced parallel grid conductors orthogonal to the first plurality of spaced parallel grid conductors. The location of a movable coil arranged on a pen or cursor is determined for each plurality of grid conductors coarsely by sampling the voltage induced in one of the grid conductors from a signal applied to the coil to determine whether the coil is above or below this grid conductor. Through careful selection, a very few grid conductors can be sampled to quickly locate the two grid conductors immediately adjacent to the center of the driven coil. The ratio of the voltages present on these two grid conductors is matched against a list of known ratios representing various positions between the two grid conductors.

摘要翻译： 数字化系统包括第一多个间隔开的平行栅格导体和与第一多个间隔开的平行栅格导体正交的第二多个间隔开的平行栅格导体。 通过从施加到线圈的信号中对网格导体中的一个引起的电压进行采样来粗略地为每个多个网格导体确定布置在笔或光标上的可动线圈的位置，以确定线圈是否在该栅格之上或之下 导体。 通过仔细选择，可以采集很少的栅格导体，以便快速定位紧邻驱动线圈中心的两个栅格导体。 存在于这两个栅格导体上的电压的比率与表示两个栅格导体之间的各种位置的已知比例的列表相匹配。