Position determining apparatus

Details Position determining apparatus Position determining apparatus

1989-10-12

1991-04-30

Schreyer, Stafford D.

Telegraphy

Systems

Position coordinate determination for writing

340707, G08C 2100

Patent

active

050120492

ABSTRACT:
An apparatus for precisely locating the position of a transmitter either along a line, or a surface, or within a three dimensional space. More particularly the apparatus of the invention is adapted for use with a computer and includes a pen sized movable transmitter, or mouse, whose exact position can be determined without the use of any physical connection between the transmitter and the balance of the apparatus.

REFERENCES:
patent: 4577057 (1986-03-01), Blesser
patent: 4688933 (1987-08-01), Lapeyre

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