METHOD OF CONTROLLING A CURSOR BY MEASUREMENTS OF THE ATTITUDE OF A POINTER AND POINTER IMPLEMENTING SAID METHOD

摘要

A system and method of controlling a cursor (120) in a surface (100) by measurements of attitude of a pointer (110). The measurements can be provided by inertial, optical, magnetic, ultrasound, radiofrequency or video means and appropriate processing means. The method includes a step of computing the displacements of the intersection of a vector tied to the pointer with a projection surface. The projection surface can be predetermined on the basis of the measurements of the attitude and/or of the angular velocity of the pointer. The pointed-at surfaces can be planes, cylinders or spheres. The pointing can be performed in limited fashion or by sliding. The control of the cursor, in absolute mode or in relative mode, can allow the triggering of functions controlled by the orientation of the cursor on the pointed-at surface.

主权项

1. A method utilizing computer code instructions configured to control a cursor on a display surface using a pointer movable in space, said method comprising:
determining one or more first parameters characterizing the cursor and being chosen from a group comprising displacements, position and orientation of said cursor; determining one or more second parameters of a frame of reference tied to the pointer, said one or more second parameters being chosen from a group comprising attitude, position and angular velocity of said frame, a vector p being tied to said frame; and determining a rule of transformation of a said second parameter to a said first parameter by using one or more intersections of a straight line carried by said vector p with a projection surface, said projection surface being predetermined and distinct from the display surface.