Position sensing method for use in coordinate input apparatus

Details Position sensing method for use in coordinate input apparatus Position sensing method for use in coordinate input apparatus

1995-06-20

1997-10-07

Kuntz, Curtis

Telegraphy

Systems

Position coordinate determination for writing

178 19, 345176, 345179, G08C 2100, G09G 302

Patent

active

056751303

ABSTRACT:
A position sensing method in a coordinate sensing apparatus comprising a sensor section forming a sensor plane, a plurality of sensor coils arranged side by side along coordinate axes, and a position indicator having at least a coil. The method provides at least a coordinate value of a position indicated by the position indicator and an inclination of the position indicator in relation to the sensor plane by the use of a value of a sensing signal including a main peak value and at least one subpeak value, both being obtained from interactive action between the position indicator and a specified sensor coil from the group of sensor coils.

REFERENCES:
patent: 4581761 (1986-04-01), Ichinokawa
patent: 4752655 (1988-06-01), Tajiri
patent: 4794209 (1988-12-01), Asada
patent: 4890096 (1989-12-01), Taguchi

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