Inductive joystick apparatus

Details Inductive joystick apparatus Inductive joystick apparatus

1995-07-31

1997-01-28

Dougherty, Thomas M.

Electricity: single generator systems

Reciprocating and/or oscillating-type generator

273148B, 336131, H02K 3500

Patent

active

055980902

ABSTRACT:
In one aspect of the present invention, a joystick is disclosed. The joystick includes a control shaft and a pivotal mount for the control shaft. A plurality of centering springs bias the control shaft to a neutral position, and extend and contract in response to pivotal movement of the control shaft. An oscillator circuit is coupled to the centering springs and produces an output signal having a frequency responsive to the inductance of the centering springs.

REFERENCES:
patent: 4493219 (1985-01-01), Sharp et al.
patent: 4584510 (1986-04-01), Hollow
patent: 4654576 (1987-03-01), Oelsch et al.
patent: 4685678 (1987-08-01), Frederiksen
patent: 4879556 (1989-11-01), Duimel
patent: 5008497 (1991-04-01), Asher
patent: 5293900 (1994-03-01), Karbassi et al.
patent: 5409074 (1995-04-01), Wilson et al.
patent: 5421694 (1995-06-01), Baker et al.
patent: 5424623 (1995-06-01), Allen et al.
Patent Application No. 08/347,663, "Capacitive Joystick Apparatus", Filed on Dec. 1, 1994, Thomas M. Baker et al., Docket No. 94-378.

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