Vibrator controlling method and apparatus

1. A vibrator controlling method comprising:

determining a vibration amplitude of a vibrator;

determining a vibration direction for a single sample period by,

generating a random number, and

determining the vibration direction within the single sample period as one of a positive direction and a negative direction based on the random number;

generating an initial vibration signal based on the vibration amplitude and the vibration direction such that the initial vibration signal cyclically increases or decreases in frequency based on the vibration direction;

generating a final vibration signal by filtering out a component of the initial vibration signal exceeding a set frequency; and

controlling the vibrator based on the final vibration signal such that, as the frequency of vibration generated by the vibrator cyclically increases or decreases, at least a portion of the vibration has a same resonate frequency as an external stimulus.

2. The vibrator controlling method of claim 1 , wherein the determining of the vibration amplitude comprises:

receiving information on the vibration amplitude from a user through a user interface.

3. The vibrator controlling method of claim 1 , wherein the generating of the final vibration signal comprises:

applying the initial vibration signal through a low pass filter to generate the final vibration signal, the low pass filter passing components of the initial vibration signal that are below the set frequency.

4. The vibrator controlling method of claim 1 , wherein the set frequency is set based on an operating frequency of the vibrator.

5. The vibrator controlling method of claim 1 , wherein the vibrator includes a plurality of vibrators, and the generating of the final vibration signal comprises:

generating a plurality of final vibration signals each associated with a respective one of the plurality of vibrators.

6. A non-transitory computer-readable medium comprising a computer program configured to control a processor to perform the vibrator controlling method of claim 1 .

7. A vibrator controlling apparatus comprising:

a vibrator configured to output a vibration using a motor;

a memory configured to store a program for controlling the vibrator; and

a processor configured to execute the program to,

determine a vibration amplitude of the vibrator,

determine a vibration direction for a single sample period by,

generating a random number, and

determining the vibration direction within the single sample period as one of a positive direction and a negative direction based on the random number,

generate an initial vibration signal based on the vibration amplitude and the vibration direction such that the initial vibration signal cyclically increases or decreases in frequency based on the vibration direction,

generate a final vibration signal by filtering out a component of the initial vibration signal exceeding a set frequency, and

control the vibrator based on the final vibration signal such that, as the frequency of vibration generated by the vibrator cyclically increases or decreases, at least a portion of the vibration has a same resonate frequency as an external stimulus.

8. The vibrator controlling apparatus of claim 7 , wherein the processor is configured to determine the vibration amplitude by receiving information on the vibration amplitude from a user through a user interface.

9. The vibrator controlling apparatus of claim 8 , wherein the user interface comprises:

a short-range wireless communication device, and wherein

the processor is configured to receive the information on the vibration amplitude from a user terminal connected through the short-range wireless communication device.

10. The vibrator controlling apparatus of claim 8 , wherein the user interface comprises:

at least one of a physical button and a touch panel, the at least one of the physical button and the touch panel configured to receive a user touch input, and wherein

the processor is configured to receive the information on the vibration amplitude by receiving the user touch input through the at least one of the physical button and the touch panel.

11. The vibrator controlling apparatus of claim 7 , wherein the processor is configured to determine the vibration amplitude such that the vibration is not sensed by a user wearing the vibrator controlling apparatus when determining the vibration amplitude.

12. The vibrator controlling apparatus of claim 7 , wherein the processor is configured to generate the final vibration signal by,

applying the initial vibration signal through a low pass filter to generate the final vibration signal, the low pass filter passing components of the initial vibration signal that are below the set frequency.

13. The vibrator controlling apparatus of claim 7 , wherein the processor is configured to set the set frequency based on an operating frequency of the vibrator.

14. The vibrator controlling apparatus of claim 7 , wherein

the vibrator includes a plurality of vibrators, and

the processor is configured to generate a plurality of final vibration signals each associated with a respective one of the plurality of vibrators.

15. The vibrator controlling apparatus of claim 7 , further comprising:

a rechargeable battery configured to,

supply power to the vibrator controlling apparatus, and

recharge the rechargeable battery wirelessly.

16. The vibrator controlling apparatus of claim 7 , further comprising:

a pad between the vibrator and a skin of a user.