Pointer position detection system using a signal processor in th

Details Pointer position detection system using a signal processor in th Pointer position detection system using a signal processor in th

1995-08-28

1999-01-05

Kuntz, Curtis

Telegraphy

Systems

Position coordinate determination for writing

178 19, 345174, 345179, G08C 2100, G09G 302

Patent

active

058566392

ABSTRACT:
A pointer position detection system for use in determining the position of a pointer relative to a tablet comprising a signal generating system coupled to the tablet for transmitting a driving signal, the signal generating system including a set of conductors for radiating the driving signal and the driving signal including information as to the particular conductor being activated by the signal generating system, a movable pointer responsive to the transmitted driving signal, the pointer including a signal processor responsive to the information and the amplitude of the driving signal on a selected plurality of successive conductors for generating a positional signal and causing the positional signal to be transmitted a selected time after receipt of the information and the amplitudes and further including a transmitter system coupled to the signal processor for transmitting the positional signal, and a signal detector system for detecting the transmitted positional signal.

REFERENCES:
patent: 4672154 (1987-06-01), Rodgers et al.
patent: 4878553 (1989-11-01), Yamanami et al.
patent: 5247137 (1993-09-01), Epperson
patent: 5276282 (1994-01-01), Russell
patent: 5294792 (1994-03-01), Lewis
patent: 5552568 (1996-09-01), Onodaka
patent: 5557076 (1996-09-01), Wieczorek

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