Pointing device having coordinate input which generates magnetic

Details Pointing device having coordinate input which generates magnetic Pointing device having coordinate input which generates magnetic

1995-08-21

1997-12-16

Snow, Walter E.

Electricity: measuring and testing

Magnetic

Displacement

32420722, 341 15, G06F 300, G01B 730, G01B 714, G08C 1906

Patent

active

056989768

ABSTRACT:
A pointing device includes a plate which is made of a magnetic material and having at least one surface with a regular change in first geometrical configuration along a direction y and a regular change in second geometrical configuration along a direction x which is perpendicular to the direction y, where the change in first geometrical configuration is different from the change in second geometrical configuration, and a coordinate input part slidably provided on the surface of the plate. The coordinate input part comprises a mechanism for generating one of a magnetic flux and magnetic field, and a mechanism for detecting a change in the magnetic flux or magnetic field fed back to the coordinate input part via the plate and generating signals indicating a moving direction and a moving quantity of the coordinate input part on the plate.

REFERENCES:
patent: 5072179 (1991-12-01), Miller et al.

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