Method of correcting speed of encoder and apparatus therefor
First Claim
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1. A method to correct a speed of an encoder, the method comprising:
- detecting an electrical signal corresponding to a driving speed of a motor;
calculating driving speed values of the motor from three or more continuous sections of the electrical signal, respectively;
storing the calculated speed values in the order of calculation;
selecting an intermediate speed value among the speed values calculated from the three or more continuous sections; and
correcting the driving speed of the motor based on the selected intermediate speed value.
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Abstract
A method of correcting the speed of an encoder and an apparatus therefor are provided. The method includes the steps of detecting an electrical signal corresponding to a driving speed of a motor, calculating driving speed values of the motor in sections of the electrical signal, respectively, storing the calculated speed values in the order of calculation, selecting an intermediate speed value among the speed values calculated from the three or more continuous sections, and correcting the driving speed of the motor in accordance with the selected intermediate speed value.
13 Citations
19 Claims
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1. A method to correct a speed of an encoder, the method comprising:
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detecting an electrical signal corresponding to a driving speed of a motor; calculating driving speed values of the motor from three or more continuous sections of the electrical signal, respectively; storing the calculated speed values in the order of calculation; selecting an intermediate speed value among the speed values calculated from the three or more continuous sections; and correcting the driving speed of the motor based on the selected intermediate speed value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for correcting a speed of an encoder, the apparatus comprising:
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an encoder sensor unit to detect an electrical signal corresponding to a driving speed of a motor; a controlling unit to calculate driving speed values of the motor from three or more continuous sections of the electrical signal, respectively, to select an intermediate speed value using the speed values selected from the three or more continuous sections; a storage unit to store the selected speed values in the order of calculation; and a motor driver unit to correct the driving speed of the motor based on the selected intermediate speed value. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification