Apparatus and method for providing haptic control signal
An apparatus and a method for providing a haptic control signal of a haptic device are disclosed. The apparatus for providing a haptic control signal of a haptic device comprises: a haptic pattern data determination unit for determining haptic pattern data on the basis of at least one of an audio signal and an additional effect signal; a haptic control signal generation unit for generating a haptic control signal for controlling a vibration operation of the haptic device on the basis of the haptic pattern data; and a transmission unit for transmitting the haptic control signal to the haptic device.
1. An apparatus for providing a haptic control signal, the apparatus comprising:
a haptic pattern data determiner configured to determine haptic pattern data based on an audio signal and a predetermined special effect signal;
a haptic control signal generator configured to generate the haptic control signal for controlling a haptic operation of a haptic device based on the haptic pattern data; and
a transmitter configured to transmit the haptic control signal to the haptic device,
and the haptic control signal comprises:
a data header including at least one of information on a format of the haptic control signal and information on a capacity of the haptic control signal;
an amplitude data for determining a haptic intensity of the haptic device; and
a signal state data including data for a time when the haptic operation of the haptic device maintains a maximum amplitude or data for a time when the haptic operation of the haptic device maintains an idle state.
2. The apparatus of claim 1 , wherein the haptic pattern data determiner is configured to extract an audio bit pattern from the audio signal and determine the haptic pattern data based on the extracted audio bit pattern.
3. The apparatus of claim 2 , wherein the haptic pattern data determiner is configured to divide the audio signal based on a frequency band, select a signal of at least one frequency band including desired bit pattern information from signals into which the audio signal is divided based on the frequency band, and extract the audio bit pattern by performing half-wave rectification on the selected signal of the at least one frequency band.
4. The apparatus of claim 1 , wherein the haptic control signal generator is configured to determine at least one of a signal amplitude characteristic, a signal direction characteristic, and a signal state characteristic of the haptic control signal based on the haptic pattern data.
5. The apparatus of claim 1 , further comprising: a visualization data generator configured to generate visualization data corresponding to the haptic pattern data, wherein the transmitter is configured to transmit the visualization data to the haptic device.
6. The apparatus of claim 1 , wherein the haptic device is configured to receive the haptic control signal from the apparatus and generate an actuator control signal for controlling an operation of an actuator based on the received haptic control signal.
7. A haptic device comprising:
a receiver configured to receive a haptic control signal from the haptic control signal providing apparatus of claim 1 ;
a haptic pattern data extractor configured to extract the haptic pattern data from the received haptic control signal;
an actuator configured to generate the haptic operation; and
an actuator controller configured to generate an actuator control signal for controlling an operation of the actuator based on the extracted haptic pattern data.
8. The haptic device of claim 7 , wherein the haptic pattern data extractor is configured to restore the haptic pattern data based on at least one of a signal amplitude characteristic, a signal direction characteristic, and a signal state characteristic of the haptic control signal.
9. The haptic device of claim 7 , wherein the receiver is further configured to receive visualization data corresponding to the haptic pattern data from the haptic control signal providing apparatus, and the haptic device further comprises: a visualization data display configured to display characteristic information of the haptic pattern data based on the received visualization data.
10. The haptic device of claim 7 , wherein the haptic pattern data is generated by the haptic control signal providing apparatus based on audio data and predetermined special effect data.
11. A haptic device comprising:
an actuator controller configured to receive a haptic control signal from the haptic control signal providing apparatus of claim 1 , to extract haptic pattern data from the received haptic control signal, and to generate an actuator control signal for controlling an operation of an actuator based on the haptic pattern data; and
an actuator configured to generate a haptic stimulus based on the generated actuator control signal.
12. The haptic device of claim 11 , wherein the actuator controller comprises: a direct current (DC) to DC (DC-DC) converter configured to apply DC power to a circuit; and a control circuit configured to generate an actuator control signal based on the haptic pattern data, wherein the actuator is configured to generate the haptic stimulus based on the control signal.
13. The haptic device of claim 12 , wherein the control circuit is configured to generate the control signal based on a bridge circuit.
14. The haptic device of claim 12 , wherein the actuator controller further comprises: an adjuster configured to adjust an intensity of the generated control signal.
15. The haptic device of claim 14 , wherein the adjuster is configured to adjust the intensity of the control signal by adjusting a turns ratio of a coil connected to the actuator through a switch.
16. The haptic device of claim 14 , wherein the adjuster is configured to adjust the intensity of the control signal through a variable resistor.
17. The haptic device of claim 14 , wherein the actuator controller is configured to generate an actuator control signal that adjusts a form of the control signal by adjusting an amplitude and a phase of the control signal.
18. The haptic device of claim 1 , wherein a predetermined special effect is stored in the database in advance, and the predetermined special effect includes at least one of a raining effect and a gunshot effect.
19. The haptic device of claim 1 , wherein the haptic pattern data determiner is configured to extract the determined haptic pattern data from haptic pattern data stored in a database in advance.