Inductive joystick apparatus
US5598090A · kind A · utility
31Cited by
10References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1995 |
| Grant date | Jan 28, 1997 |
| Priority date | — |
| Expiry date | Jul 31, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05G2009/04755
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.