Digitizing stylus having capacitive pressure and contact sensing capabilities
摘要
A stylus assembly in which a stylus is mounted in a housing for movement relative thereto. An electrical circuit is provided for sensing contact of the stylus with a writing surface and measuring the pressure exerted on the surface by the stylus.
申请公布号
US5438275(A)
申请公布日期
1995.08.01
申请号
US19940177106
申请日期
1994.01.03
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
FADO, FRANCIS;WONG, TIN-LUP;VERRIER, GUY F.;DONALDSON, ROBERT L.;KOWALEWSKI, PAUL D.