XY velocity controller

Details XY velocity controller XY velocity controller

1990-01-17

1991-01-08

Schreyer, Stafford D.

Telegraphy

Systems

Position coordinate determination for writing

340709, G08C 2100

Patent

active

049837869

ABSTRACT:
A XY control system for controlling vector movement in two mutually perpendicular directions (for example for computer cursor control, i.e. emulating a conventional computer mouse) uses a XY pressure sensitive digital pad or more preferably a XYZ pressure sensitive digital pad generating different signals based on the selected location at which pressure is applied to the pad. These signals are divided into X or Y and a directional signal and then converted into a velocity signal for controlling the vector motion in the required direction dependent on the selected location for application of pressure to the pad and at a velocity the magnitude of which is proportional to the displacement of the selected location from a datum area on the pad, or in the case of a XYZ pad dependent on both displacement and the amount of pressure applied at the selected location.

REFERENCES:
patent: 4484026 (1984-11-01), Thornburg
patent: 4529959 (1987-07-01), Kazuhiko et al.
patent: 4687885 (1987-08-01), Talmage et al.
patent: 4728812 (1988-03-01), Sheriff
Force Sensing Resistors-Interlink Electronics, Santa Barbara, CA.

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