Digital positioning joystick system and method therefor

Details Digital positioning joystick system and method therefor Digital positioning joystick system and method therefor

1997-04-17

1998-07-28

Hofsass, Jeffrey A.

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

345116, 74471XY, 200 5R, 463 38, G09G 508

Patent

active

057868085

ABSTRACT:
A digital positioning system for a joystick. The system uses a potentiometer having one input coupled to a constant supply voltage and a second input coupled to a joystick game port for generating a variable resistance representative of a current position of the joystick. A constant current source is coupled to the joystick game port for generating a current for converting the variable resistance representative of the current position of the joystick to a voltage level representative of the current position of the joystick. An analog-to-digital (A/D) converter circuit is coupled to the joystick game port and is used to convert the voltage level representative of the current position of the joystick to a digital representation of the current position of the joystick.

REFERENCES:
patent: 5610631 (1997-03-01), Bouton et al.

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