Joystick with uniform center return force

Details Joystick with uniform center return force Joystick with uniform center return force

1995-09-07

1998-03-03

Powell, Mark R.

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

G06F 3033

Patent

active

057240680

ABSTRACT:
A computer joystick capable of detecting the position of a control stick in the X and Y directions, as well as the rotational (R) position of the control stick to allow three positional measurements to be made. The joystick uses an optical position detection circuit with a pair of light sources mounted either on the control stick or a printed circuit board mounted beneath the control stick. A photodetector assemble is mounted opposite the pair of light sources to detect light from the light sources. The distribution of the light intensity is indicative of the position of the control stick in the X, Y, and R directions. A single coil spring is used to return the control stick to a resting position when released by the user. The single spring provides an even return force that is dependent on displacement from the resting position. The bottom portion of the control stick moves in a three dimensional arcuate path as the control stick is manipulated by the user. To simplify operation of the optical position detection circuit, the joystick uses a mechanical three dimensional to two dimensional mechanical converter assembly to convert the arcuate movement of the control stick to two dimensional movement of the light sources.

REFERENCES:
patent: 3666700 (1972-05-01), Rothweiler et al.
patent: 4488017 (1984-12-01), Lee
patent: 4533827 (1985-08-01), Fincher
patent: 4763100 (1988-08-01), Wood
patent: 4801914 (1989-01-01), Kerai
patent: 4856785 (1989-08-01), Lantz et al.
patent: 5117102 (1992-05-01), Mitchell
patent: 5229742 (1993-07-01), Miyamoto et al.
patent: 5252821 (1993-10-01), Sugimura et al.
patent: 5286024 (1994-02-01), Winblad
patent: 5398028 (1995-03-01), Foon
patent: 5432530 (1995-07-01), Arita et al.
patent: 5436640 (1995-07-01), Reeves
patent: 5510810 (1996-04-01), Nishijima et al.
patent: 5555004 (1996-09-01), Ono et al.
patent: 5558329 (1996-09-01), Liu
patent: 5559432 (1996-09-01), Logue
patent: 5589828 (1996-12-01), Armstrong

Affiliated with

Also associated with

Rating

Joystick with uniform center return force does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Joystick with uniform center return force, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Joystick with uniform center return force will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2252707