Cursor position device

Details Cursor position device Cursor position device

G - Physics

01

B

33/182, 375/11.1

G01B 7/04 (2006.01) G06F 3/033 (2006.01)

Patent

CA 1048775

ABSTRACT OF THE DISCLOSURE The invention relates to a position device which rides over a surface for controlling a cursor over a visual display. The device generates signals indicative of its position to cause the cursor to be displayed on the display at a corresponding position. The device includes a control mechanism that comprises a transport sphere coupled with rotatable shafts which represent the position of the device in terms of Cartesian coordinates. The sphere is in contact with the surface over which the device rides and the rotatable shafts contact the sphere at a position on the sphere approxi- mately 90° from the contact loci of the sphere and the surface.

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