公开(公告)号：US20060038783A1

公开(公告)日：2006-02-23

申请号：US11253477

申请日：2005-10-18

申请人： Scott Shaw ,  Shawn Day ,  Raymond Trent` ,  David Gillespie ,  Andrew Errington

发明人： Scott Shaw ,  Shawn Day ,  Raymond Trent` ,  David Gillespie ,  Andrew Errington

IPC分类号： G09G5/08

CPC分类号： G06F3/03543 ,  G06F3/0312 ,  G06F3/03547 ,  G06F3/0362 ,  G06F2203/0339

摘要： A pointing device some or all of whose elements are made from capacitive sensors. Such elements may include a rotary motion detector which includes a rotating member and a plurality of fixed capacitive detecting members; a rolling ball with patterned conductive surface and a plurality of fixed capacitive detecting members; capacitive touch sensors or capacitive switches to serve as mouse buttons; and a scrolling wheel, knob, or touch surface built from capacitive sensors. The pointing device further includes a capacitance measuring circuit and processor to measure variations of capacitance on the various capacitive elements and to determine the movement of and other activations of the mouse.

公开(公告)号：US07511705B2

公开(公告)日：2009-03-31

申请号：US10478354

申请日：2002-05-21

申请人： Christopher J. Silk ,  David T. E. Ely ,  Andrew Errington ,  Ian Collins ,  Geoffrey Foote ,  Julian Haines ,  Robert J. Bolender ,  Gareth J. McCaughan

发明人： Christopher J. Silk ,  David T. E. Ely ,  Andrew Errington ,  Ian Collins ,  Geoffrey Foote ,  Julian Haines ,  Robert J. Bolender ,  Gareth J. McCaughan

IPC分类号： G09G5/00

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 is described 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： 描述了用于诸如便携式数字助理，移动电话，网络浏览器等的消费电子设备中的低成本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。