Mobile device comprising stylus pen and operation method therefor

1. A mobile device comprising a stylus pen, the mobile device comprising:

a communication unit configured to receive a control signal from the stylus pen; and

a controller configured to operate in one from among a first control mode, in which the stylus pen is used for remotely controlling at least one operation of an application being executed on the mobile device via the control signal, and a second control mode, in which the stylus pen is used for controlling the at least one operation of the application being executed on the mobile device by providing a touch input on a touchscreen of the mobile device;

a sensing unit configured to determine whether the stylus pen is in a proximity to the mobile device,

wherein the sensing unit is further configured to, while the controller operates in the first control mode, determine that the stylus pen has approached the touchscreen to be in the proximity of the mobile device, based on the stylus pen being within a certain distance or less from the touchscreen, and

wherein, based on the sensing unit determining that the stylus pen is in the proximity of the mobile device, the controller is further configured to change from the first control mode to the second control mode.

2. The mobile device of claim 1 , wherein the control signal comprises a first control signal and a second control signal,

the at least one operation comprises a first operation and a second operation, and

wherein, while the controller operates in the first control mode, the controller is further configured to perform the first operation of the application in response to the first control signal, and perform the second operation of the application in response to the second control signal.

3. The mobile device of claim 2 , wherein the first control signal corresponds to an input of single-clicking a button included in the stylus pen, and

wherein the second control signal corresponds to an input of double-clicking the button.

4. The mobile device of claim 2 , wherein the first control signal corresponds to a first user motion detected by a motion sensor included in the stylus pen, and

wherein the second control signal corresponds to a second user motion detected by the motion sensor.

5. The mobile device of claim 2 , wherein the application is a camera application having an image capturing function,

wherein the first operation is a zoom-in operation of the camera application, and

wherein the second operation is an image capturing operation.

6. The mobile device of claim 2 , wherein the application is an alarm clock application having an alarm clock function,

wherein the first operation is an operation of turning off a ringing alarm, and

wherein the second operation is an operation of setting a new alarm.

7. The mobile device of claim 2 , wherein the application is an application having a video player function,

wherein the first operation is an operation of pausing a currently playing video, and

wherein the second operation is an operation of playing a video subsequent to the currently playing video on a playlist.

8. The mobile device of claim 1 , further comprising a user input unit configured to receive a user input of selecting the first control mode or the second control mode.

9. The mobile device of claim 1 , wherein, while the controller operates in the first control mode, based on the controller determining that execution of the application is terminated, the controller is further configured to change from the first control mode to the second control mode.

10. The mobile device of claim 1 , wherein, based on the sensing unit detecting that the stylus pen is separated from the mobile device, the controller is further configured to control the communication unit to generate a communication channel between the mobile device and the stylus pen and receives the control signal on the communication channel.

11. The mobile device of claim 10 , wherein the sensing unit is further configured to detect whether the stylus pen is inserted into the mobile device, and

based on the sensing unit detecting that the stylus pen is inserted into the mobile device, the controller is further configured to terminate the communication channel generated between the mobile device and the stylus pen.

12. The mobile device of claim 1 , further comprising a display configured to display an icon indicating the first control mode while the controller operates in the first control mode.

13. A method of operating a mobile device comprising a stylus pen, the method comprising:

receiving a control signal from the stylus pen;

operating in a first control mode in which the stylus pen is used for remotely controlling at least one operation of an application being executed on the mobile device via the control signal;

determining whether the stylus pen has approached the mobile device to be in a proximity to the mobile device;

changing an operation of the mobile device from the first control mode to a second control mode, based on the determining that the stylus pen is in the proximity of the mobile device when the stylus pen is within a certain distance or less from a touchscreen of the mobile device; and

operating in the second control mode in which the stylus pen is used for controlling the at least one operation of the application being executed on the mobile device by providing a touch input on the touchscreen of the mobile device.

14. The method of claim 13 , wherein the control signal comprises a first control signal and a second control signal,

the at least one operation comprises a first operation and a second operation, and

wherein the operating in the first control mode comprises performing the first operation of the application in response to the first control signal, and performing the second operation of the application in response to the second control signal.

15. The method of claim 14 , wherein the first control signal corresponds to an input of single-clicking a button included in the stylus pen, and

wherein the second control signal corresponds to an input of double-clicking the button.

16. The method of claim 13 , further comprising receiving a user input of selecting the first control mode or the second control mode.