Pointing device for detecting hand-movement
First Claim
1. A pointing device for communicating with a computer system, comprising:
- a micro control unit which couples to at least two accelerometers;
wherein the micro control unit outputs a cursor-moving signal to the computer;
wherein the at least two accelerometers are positioned at least at a first position and a second position for detecting respective first and second changes in speed and direction of the pointing device; and
wherein when a user operates the pointing device, the micro control unit calculates the difference between the first and second changes in speed and direction so as to generate the cursor-moving signal for the computer.
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Abstract
The present invention discloses a pointing device for communicating with a computer system. The pointing device includes a micro control unit and at least two acceleration sensors respectively located at a first position and a second position. The pointing device may further include a wireless transmitting module that can wirelessly transmit a cursor-moving signal sent from the MCU. When a user operates the pointing device, the MCU calculates the difference in accelerations sensed by the two acceleration sensors, and sends the cursor-moving signal to the computer system. The pointing device further provides a laser pointer for facilitating the indication of content on a projected screen.
109 Citations
13 Claims
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1. A pointing device for communicating with a computer system, comprising:
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a micro control unit which couples to at least two accelerometers;
wherein the micro control unit outputs a cursor-moving signal to the computer;
wherein the at least two accelerometers are positioned at least at a first position and a second position for detecting respective first and second changes in speed and direction of the pointing device; and
wherein when a user operates the pointing device, the micro control unit calculates the difference between the first and second changes in speed and direction so as to generate the cursor-moving signal for the computer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method to control a pointing device for communicating with a computer system, comprising:
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obtaining at least two accelerations from, respectively, at least two accelerometers;
calculating a difference between the accelerations using a micro control unit;
outputting a cursor-moving signal from the micro control unit to the computer system.
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13. A method to control a pointing device for communicating with a computer system, comprising:
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obtaining at least accelerations at a first and a second position;
calculating a difference between the accelerations using a micro control unit;
outputting a cursor-moving signal from the micro control unit to the computer system.
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Specification