Tablet system with digital activation
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专利名称：Tablet system with digital activation发明人：Herbert Dym,Stanley F. Kambic申请号：US05/583350申请日：19750602公开号：US03992579A公开日：19761116
摘要：An improved tablet system is disclosed of the type having an array of X and Ydimension wires that are capacitively coupled to a pen that a user holds to the tablet toproduce a position signal. Drivers are provided for individual wires to produce a selectedactivation pattern for the wires. The drivers are operated from a shift register andassociated components that are mounted on the tablet and are connected to anassociated processor through only a small number of conductors.
申请人：IBM CORPORATION
代理人：William S. Robertson
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