G - Physics
06
F
G06F 3/033 (2006.01) G01V 3/18 (2006.01)
Patent
CA 2222907
The "Free Mouse" is provided with two identical opto-mechanical sensors positioned at 90 degrees angle mounted over a Circuit Board. Each opto-mechanical sensor has of a thin photo-interrupter disk with slotted openings that is modified to act as a pendulum. The cursor is positioned with the tilt of the "Free Mouse" and the clutch button is engaged either through the mouse itself, through the keyboard or by foot or head movement. In one embodiment of the "Free Mouse", the said photo-interrupter disks of the opto-mechanical sensors have an eccentric weight, metal or else, attached to one point of the disk, either at its tip or is incorportaed to the disk body, at an offset position to act as a pendulum. In another embodiment the eccentric weight is attached to the photo-interrupter disk axis to act as a pendulum. In both embodiments, the said weight has the effect of a pendulum that maintains itself at the lower center of gravity position of the disk while the entire body of the sensor mounted on the Circuit Board may rotate around the disk axis. Light from LEDs pass through the rotating slots and strike photo-transistors which convert the light pulses into electronic signals that are sent to a computer or a micro-processor. While in a traditional mouse, it is the trackball that acts as the driver of the opto-mechanical sensors when it rolls over a pad by the translational movement of a hand, a foot or by a finger in order to move the cursor in a desired position, in the "Free Mouse". it is the free-floating tilt of the mouse in the air in the XZ ox YZ planes that drives the light LEDs to pass through the "interrupter disk" of the opto-mechanical sensors while the interrupter-disk acts as a pendulum keeping its "fixed" position by attraction of gravity force.
Mottahedeh Soheyl
Na
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