摘要 |
A low cost x-y digitising system is described for use in consumer electronic devices, such as portable digital assistants, mobile telephones, web browsers and the like. The digitiser includes a resonant stylus, an excitation winding for energising 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 digitiser windings and novel excitation and processing circuitry. |
申请人 |
SYNAPTICS (UK) LIMITED;ELY, DAVID, THOMAS, ELIOT;MCCAUGHAN, GARETH, JOHN;FOOTE, GEOFFREY |
发明人 |
ELY, DAVID, THOMAS, ELIOT;MCCAUGHAN, GARETH, JOHN;FOOTE, GEOFFREY |