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1. 发明授权

US5251123A High resolution system for sensing spatial coordinates 失效
标题翻译：用于感测空间坐标的高分辨率系统
公开(公告)号：US5251123A
公开(公告)日：1993-10-05
申请号：US746285
申请日：1991-08-13
申请人： Leonard Reiffel , Wayne D. Jung , Thomas Rosevear , Thomas Jakobs
发明人： Leonard Reiffel , Wayne D. Jung , Thomas Rosevear , Thomas Jakobs
IPC分类号： G06F3/033 , G06F3/041 , G06F3/044 , G06F19/64 , G05B19/18 , G08C21/00
CPC分类号： G06F3/041 , G06F3/0346 , G06F3/03545 , G06F3/044
摘要： An improved high resolution method and apparatus are described for sensing and determining the spatial coordinates of a movable object with respect to a energized conductive surface. The coordinates of the object are precisely measured with respect to a two-dimensional coordinate system independent of the third orthogonal dimension, thereby avoiding significant measurement errors due to variations of the object position in the third orthogonal dimension. The system also ascertains the coordinate position of the object in this third dimension, which can then be utilized as an independent control variable in the system. Further, the system can accommodate a number of energized conductive surfaces over which the object may be positioned and can determine the spatial coordinates of the object with respect to any such surface. In general, the system of the present invention can ascertain the generalized n-tuple position vector of the object with respect to each of a plurality of generalized, energized conductive surfaces. In any of the foregoing forms, the energized conductive surfaces can be transparent. The system described improves the precision and accuracy of the location of the selected point and hence the precision and accuracy of the spatial coordinates calculated by the system for display. The improvement in system performance is the result of innovations in fundamental design concepts utilized throughout the system.
摘要翻译：描述了一种改进的高分辨率方法和装置，用于感测和确定可移动物体相对于通电导电表面的空间坐标。相对于与第三正交尺寸无关的二维坐标系精确地测量物体的坐标，从而避免由于第三正交维度中的物体位置的变化引起的显着的测量误差。该系统还确定该第三维度中物体的坐标位置，然后可以将其用作系统中的独立控制变量。此外，该系统可以容纳多个通电的导电表面，物体可以在其上定位，并且可以确定物体相对于任何这样的表面的空间坐标。通常，本发明的系统可以相对于多个通用的通电导电表面中的每一个来确定物体的广义n元组位置矢量。在任何上述形式中，通电的导电表面可以是透明的。所描述的系统提高了所选点的位置的精度和精度，并因此提高了由系统显示的空间坐标的精度和精度。系统性能的提高是整个系统中使用的基础设计概念的创新的结果。

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