Pressure sensitive pointing device for transmitting signals to a

Details Pressure sensitive pointing device for transmitting signals to a Pressure sensitive pointing device for transmitting signals to a

1993-08-02

1996-11-05

Chin, Wellington

Telegraphy

Systems

Position coordinate determination for writing

178 19, 178 20, 178 87, 345173, 345179, 345180, G08C 2100, G09G 302, H04L 1508

Patent

active

055719970

ABSTRACT:
A pressure sensitive pointing device or pen is described for use with an electronic tablet that determines the position of the pointing device on the surface of the tablet. The pointing device incorporates a variable reluctance circuit responsive to the force exerted on the pen point for modulating a radiating frequency, emanating from the pen, in proportion to the force.

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