专利名称：Digitizer using position-unique optical
signals
发明人：Bernard O. Geaghan申请号：US146533申请日：20150417公开号：US09710074B2公开日：20170718
专利附图：
摘要：The present invention provides systems and methods of using a stylus thathouses optics and a detector capable of receiving optical signals that are combined with adisplayed image. Stylus position determination is made by analyzing received optical
signals.
申请人：3M INNOVATIVE PROPERTIES COMPANY
地址：St. Paul MN US
国籍：US
代理人：Robert S. Moshrefzadeh
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