Method and device for sensing rotation of wheel in portable terminal
First Claim
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1. A method of sensing a rotation of a wheel in a portable terminal, the method comprising:
- storing at least one mapping table which correlates interrupt values and the status values of a plurality of sensors to the rotation of the wheel;
producing at least one interrupt through any one of the plurality of sensors provided in the wheel according to the rotation of the wheel;
confirming an interrupt value of the produced interrupt and a status value of a sensor which does not produce the interrupt among the plurality of sensors; and
determining that the wheel is rotated in a direction corresponding to the interrupt value and the status value with reference to the at least one mapping table.
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Abstract
A method of sensing the rotation of a wheel in a portable terminal is provided. The method includes producing at least one interrupt through any one of a plurality of sensors provided in the wheel according to the rotation of the wheel, confirming an interrupt value of the produced interrupt, and a status value of a sensor which did not produce the interrupt among the plurality of sensors, and determining that the wheel is rotated in a direction corresponding to the interrupt value and the status value.
8 Citations
9 Claims
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1. A method of sensing a rotation of a wheel in a portable terminal, the method comprising:
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storing at least one mapping table which correlates interrupt values and the status values of a plurality of sensors to the rotation of the wheel; producing at least one interrupt through any one of the plurality of sensors provided in the wheel according to the rotation of the wheel; confirming an interrupt value of the produced interrupt and a status value of a sensor which does not produce the interrupt among the plurality of sensors; and determining that the wheel is rotated in a direction corresponding to the interrupt value and the status value with reference to the at least one mapping table. - View Dependent Claims (2, 3, 4)
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5. A device for sensing a rotation of a wheel in a portable terminal, the device comprising:
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a plurality of sensors, wherein each sensor produces at least one of an interrupt value and a status value according to the rotation of the wheel; a memory unit for storing at least one mapping table which correlates the interrupt values and the status values of the plurality of sensors to the rotation of the wheel; and a control unit for confirming an interrupt value of the produced interrupt and a status value of a sensor which does not produce the interrupt among the plurality of sensors, and for determining that the wheel is rotated in a direction corresponding to the interrupt value and the status value with reference to the at least one mapping table. - View Dependent Claims (6, 7, 8)
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9. A portable terminal comprises:
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a wireless transmitting/receiving unit; an audio processing unit; a wheel; a memory unit for storing at least one mapping table which correlates interrupt values and status values of a plurality of sensors according to rotation of the wheel; a control unit for confirming an interrupt value of the produced interrupt and a status value of a sensor which does not produce the interrupt among the plurality of sensors, and for determining that the wheel is rotated in a direction corresponding to the interrupt value and the status value with reference to the at least one mapping table; and a display unit for outputting various pieces of display information generated by the portable terminal.
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Specification