KR940000955A - Joystick and Position Detection Method Using the Same - Google Patents

Abstract

The present invention accurately detects the position data of the x-axis and y-axis in the 360 ° range with four variable resistors in order to improve the disadvantages of the conventional joystick due to noise and signal error due to corrosion of the resistance (volume) material. In addition, since the digital location data is provided by digital conversion, it can be usefully used for communication equipment and game machines in the digital trend.

Description

Joystick and Position Detection Method Using the Same

Since this is an open matter, no full text was included.

3 is a joystick block diagram according to the present invention,

4 is a graph according to one embodiment of FIG.

5 is a control flow diagram according to an embodiment of FIG.

Claims (6)

A position data detector (11) for detecting and outputting position data of the x-axis and y-axis according to the strength and operation direction of the joystick user; Switching unit 12 for switching and outputting only one signal of the x-axis and y-axis position data output from the position data detection unit 11, and digitally outputting the output signal of the switching unit 12 Joystick, characterized in that it is composed of a microcomputer 14 for outputting a predetermined control signal for controlling the operation of the switching unit 12 and the A / D converter 13, respectively. . The joystick according to claim 1, wherein the position data detection unit (11) is provided with four variable resistors (VR _1- VR ₄ ) facing each other with respect to the x-axis and the y-axis. A first step of detecting the position data of the x-axis and y-axis corresponding to the strength and direction of the force of the joystick user, the initialization data (Ox, Oy) of the x-axis and the y-axis and the offset data (Dx, Dy) ) And a second step of initializing the x-axis and y-axis position data separating signals (N) and checking whether the x-axis and r-axis position data separating signals (N) are "0", and the x-axis and f-axis positions A third step of digitally processing the x-axis position data when the data division signal (N) is "0" and outputting the corresponding x-axis digital position data value, and the x-axis and y-axis position data separation signal ( If the value N is determined to be "0", the third step of digitally processing the detected y-axis position data is performed. If the value is "0", the fourth step of digitally processing the detected x-axis position data value is sequentially performed. Position detection method using a joystick, characterized in that carried out. The digital signal processing of claim 3, wherein the digital signal processing is performed by switching only one signal of the x-axis and y-axis position data first by the x-axis and y-axis position data distinguishing signals (N). Position detection method using joystick. 4. The method of claim 3, wherein after the digital signal processing is completed in the third step, the condition of Dx = Ox if N = 0 and Dy = Oy if N = 1 is satisfied. Determining a signal (N) value and outputting a Dx value when the N value is "0", and outputting a Dy value when the N value is not "0" and performing a fourth step. Way. 6. The method of claim 5, wherein if N = 0, Dx = Ox and N = 1, if the condition of Dy = Oy is not satisfied, the values of the x-axis and y-axis position data classification signals (N) are determined and the N value is " If the value is "0", the Dx value is output. If the N value is not "0", the Dy value is output and the fourth step is performed. ※ Note: The disclosure is based on the initial application.