Patent ID: 6400354
Filing Date: 2002-06-04
Classification: G05G,G06F

Abstract:
A pointing stick device comprising:a base plate; a stick having a top end, a bottom end, and a middle portion between the top end and the bottom end, a portion of the bottom end of the stick being vertically installed at the base plate; at least one strain gauge installed around the middle portion of the stick for sensing pressure and generating corresponding sensing signals; a cap mounted at the top end of the stick and having a cone-shaped mouth for containing the top end of the stick and the middle portion of the stick; and a base stand installed around the middle portion of the stick, the base stand covering at least a portion of the strain gauge, a portion of the base stand being positioned inside the mouth of the cap; wherein when an external force is applied to the cap, the force will be transmitted through the mouth of the cap to the portion of the base stand positioned inside the mouth and also to the strain gauge covered by the base stand wherein the strain gauge will sense the force from the cap and generate corresponding sensing signals.