Position sensor

Details Position sensor Position sensor

2008-07-29

2008-07-29

Barlow, Jr., John E. (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Orientation or position

Reexamination Certificate

active

07406393

ABSTRACT:
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.

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