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公开(公告)号:US20090184940A1
公开(公告)日:2009-07-23
申请号:US12397121
申请日:2009-03-03
申请人: Christopher J. Silk , David T.E. Ely , Andrew M. Errington , Ian Collins , Geoffrey Foote , Julian Haines , Robert Bolender , Gareth J. McCaughan
发明人: Christopher J. Silk , David T.E. Ely , Andrew M. Errington , Ian Collins , Geoffrey Foote , Julian Haines , Robert Bolender , Gareth J. McCaughan
IPC分类号: G06F3/041
CPC分类号: G06F3/046 , G06F1/3203 , G06F1/3262 , G06F3/03545 , G06F3/03547 , G06F2203/0339
摘要: A low-cost x-y digitizing system for use in consumer electronic devices, such as portable digital assistants, mobile telephones, web browsers and the like. The digitizer includes a resonant stylus, an excitation winding for energizing the resonant stylus and a set of sensor windings for sensing the signal generated by the stylus, from which the x-y position of the stylus is determined. A novel stylus design is described together with novel digitizer windings and novel excitation and processing circuitry.
摘要翻译: 用于消费电子设备(例如便携式数字助理,移动电话,网络浏览器等)的低成本x-y数字化系统。 该数字转换器包括一个共振触控笔,一个用于激励谐振触控笔的激励绕组和一组用于感测由触笔产生的信号的传感器绕组,由此确定触笔的x-y位置。 新颖的触控笔设计与新型数字转换器绕组和新颖的激励和处理电路一起描述。