Haptic feedback method and apparatus and machine-readable storage medium

1. A haptic feedback method, the method comprising:

obtaining information on an impulse amount range of collisions from an application stored in a memory;

matching the impulse amount range and a strength range of haptic patterns;

providing a user with an image of the application that is updated based on a collision event;

obtaining information on the collision event;

generating a haptic pattern based on the information on the collision event; and

generating vibration based on the haptic pattern,

wherein the collision event is caused by a collision between a first object and a second object in the image, and

wherein generating the haptic pattern includes:

determining a maximum strength of the haptic pattern within the strength range corresponding to an impulse amount of the collision within the impulse amount range;

if the collision between the first object and the second object is a collision between hard bodies, generating a rectangular haptic pattern; and

if the collision between the first object and the second object is a collision between soft bodies or a collision between a hard body and a soft body, generating a triangular haptic pattern.

2. The method of claim 1 , further comprising:

receiving an input from the user,

wherein the collision is generated based on the user input.

3. The method of claim 2 , further comprising:

generating an event based on the user input; and

determining whether the generated event corresponds to the collision event.

4. The method of claim 1 , wherein the haptic pattern has a duration time associated with an impulse amount of the collision.

5. The method of claim 1 , wherein generating the haptic pattern further includes:

identifying a combination of the first object and the second object by comparing stiffness values of the first object and the second object with a predetermined threshold value, wherein the combination of the first object and the second object corresponds to one of a first combination of hard bodies, a second combination of soft bodies, and a third combination of a hard body and a soft body.

6. A non-transitory machine-readable storage medium storing a program causing a processor to execute a haptic feedback method, the method comprising;

obtaining information on an impulse amount range of collisions from an application stored in a memory;

matching the impulse amount range and a strength range of haptic patterns;

providing a user with an image of the application that is updated based on a collision event;

obtaining information on the collision event;

generating a haptic pattern based on the information on the collision event; and

generating vibration based on the haptic pattern,

wherein the collision event is caused by a collision between a first object and a second object in the image, and

wherein generating the haptic pattern includes:

determining a maximum strength of the haptic pattern within the strength range corresponding to an impulse amount of the collision within the impulse amount range;

if the collision between the first object and the second object is a collision between hard bodies, generating a rectangular haptic pattern; and

if the collision between the first object and the second object is a collision between soft bodies or a collision between a hard body and a soft body, generating a triangular haptic pattern.

7. The non-transitory machine-readable storage medium of claim 6 , wherein generating the haptic pattern further includes:

identifying a combination of the first object and the second object by comparing stiffness values of the first object and the second object with a predetermined threshold value, wherein the combination of the first object and the second object corresponds to one of a first combination of hard bodies, a second combination of soft bodies, and a third combination of a hard body and a soft body.

8. A haptic feedback apparatus, the apparatus comprising:

a display unit configured to provide a user with an image of an application that is updated based on a collision event;

a controller configured to obtain information on an impulse amount range of collisions from the application stored in a memory, match the impulse amount range and a strength range of haptic patterns, obtain information on the collision event, and generate a haptic pattern based on the information on the collision event; and

an actuator configured to generate a vibration based on the haptic pattern,

wherein the collision event is caused by a collision between a first object and a second object in the image, and

wherein the controller is further configured to:

determine a maximum strength of the haptic pattern within the strength range corresponding to an impulse amount of the collision within the impulse amount range;

if the collision between the first object and the second object is a collision between hard bodies, generate a rectangular haptic pattern; and

if the collision between the first object and the second object is a collision between soft bodies or a collision between a hard body and a soft body, generate a triangular haptic pattern.

9. The apparatus of claim 8 , further comprising:

a sensor unit configured to detect an input of the user,

wherein the collision is generated based on the user input.

10. The apparatus of claim 9 , wherein the controller is further configured to:

generate an event based on the user input, and

determine whether the generated event corresponds to a collision event.

11. The apparatus of claim 8 , wherein the haptic pattern has a duration time associated with an impulse amount of the collision.

12. The apparatus of claim 8 , wherein the controller is further configured to:

identify a combination of the first object and the second object by comparing stiffness values of the first object and the second object with a predetermined threshold value, wherein the combination of the first and second objects corresponds to one of a first combination of hard bodies, a second combination of soft bodies, and a third combination of a hard body and a soft body.