Coordinate reader

Details Coordinate reader Coordinate reader

1986-01-02

1987-06-09

Schreyer, Stafford D.

Telegraphy

Systems

Position coordinate determination for writing

323218, G08C 2100

Patent

active

046721550

ABSTRACT:
A coordinate reader comprises first and second conductor loops each having an electrical conductor so that electrical conductors of the respective conductor loops are juxtaposed on an electrically insulating board, a cosine function generator connected to one of the first and second conductor loops, a sine function generator connected to the other of the first and second conductor loops, a cursor incorporating a magnetic flux detecting coil for detecting magnetic fluxes generated in the conductor loops excited by the cosine and sine function generators, and a processor. The processor processes and controls operations of the aforementioned components to detect coordinates of the cursor.

REFERENCES:
patent: 4570033 (1986-02-01), Hulls

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