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1. 发明授权

US5691511A Cordless digitizer 失效
标题翻译：无绳数字化仪
公开(公告)号：US5691511A
公开(公告)日：1997-11-25
申请号：US328523
申请日：1994-10-25
申请人： Keiichi Matsushima , Shuuji Hirano
发明人： Keiichi Matsushima , Shuuji Hirano
IPC分类号： G06F3/046 , G06F3/033 , G08C21/60
CPC分类号： G06F3/046
摘要： A cordless digitizer includes a tablet including position detecting elements formed of loop coils, error compensating elements formed of loop coils, and an auxiliary element formed of a coil which is arranged around a reading range of the tablet; and a position indicator including a position indicating element; and an error compensating unit which, when the position indicator is set at a position on the tablet, obtains first outputs according to interactions between the position detecting elements and the auxiliary element of the tablet and the position indicating element of the position indicator, and second outputs according to interactions between the error compensating elements, the auxiliary element of the tablet and the position indicating element of the position indicator to produce third outputs according to the first and second outputs from which error output components due to direct actions between the elements of the tablet have been eliminated; a position detecting loop coil assembly provided on the tablet which comprises loop coils arranged thereon at predetermined intervals in such a manner that adjacent loop coils are set close to one another but not overlapped with one another; and a loop coil selecting unit for selecting, from among the loop coils, a predetermined loop coil as a position detecting element, and a loop coil adjacent to the predetermined loop coil as an error compensating element.
摘要翻译：一种无绳数字转换器，包括：平板电脑，包括由环形线圈形成的位置检测元件，由环形线圈形成的误差补偿元件，以及围绕平板电脑读取范围布置的线圈形成的辅助元件; 以及包括位置指示元件的位置指示器; 以及误差补偿单元，当位置指示器被设置在平板电脑上的位置时，根据位置检测元件和图形输入板的辅助元件与位置指示器的位置指示元件之间的相互作用获得第一输出，第二输出根据误差补偿元件，图形辅助元件和位置指示器的位置指示元件之间的相互作用输出，以根据第一和第二输出产生第三输出，由该第一和第二输出由于第平板电脑已经淘汰; 设置在图形输入板上的位置检测环线圈组件，其包括以预定间隔布置在其上的环形线圈，使得相邻环形线圈彼此靠近而不彼此重叠; 以及环路线圈选择单元，用于从环路线圈中选择作为位置检测元件的预定环形线圈和与预定环形线圈相邻的环形线圈作为误差补偿元件。

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