A data entry system includes a number of sensors (27) behind a smooth surface (26). A pointer (34), such as a finger, traces out characters on the surface (26). An interpreter (30) matches the characters traced with predetermined patterns and outputs a corresponding character. The data entry system is suitable for use in small hand-held devices such as mobile telephones. It is suitable for entering Chinese characters.
申请公布号
WO03003181(A2)
申请公布日期
2003.01.09
申请号
WO2002IB02405
申请日期
2002.06.20
申请人
KONINKLIJKE PHILIPS ELECTRONICS N.V.
发明人
THOMASON, GRAHAM, G.;FARRINGDON, JONATHAN;WALKER, DAVID, P.