Head mounted display for adjusting audio output and video output in relation to each other and method for controlling the same

1. A method of controlling a head mounted display that adjusts an audio output and a video output of the head mounted display in relation to each other, the method comprising:

providing a first user interface of a control interface for adjusting the audio output and the video output in relation to each other, wherein the first user interface includes an indicator for adjusting a data output level of the audio output and a data output level of the video output in relation to each other;

receiving, by the head mounted display, an input signal corresponding to a movement of the indicator; and

adjusting, by the head mounted display, the data output level of the audio output and the data output level of the video output so as to be inversely related to each other according to the received input signal.

2. The method of claim 1 , wherein the first user interface of the control interface includes a slide bar on which the indicator is movable by a user to adjust the data output levels of the audio output and the video output.

3. The method of claim 2 , wherein the adjusting step decreases the data output level of the video output when the indicator is moved by the user to a position for increasing the data output level of the audio output, and

wherein the adjusting step decreases the data output level of the audio output when the indicator is moved by the user to a position for increasing the data output level of the video output.

4. The method of claim 2 , wherein the slide bar includes at least a first critical point for the audio output and a second critical point for the video output, and

wherein the method further comprises:

blocking, by the head mounted display, the video output when the indicator is moved beyond the first critical point on the slide bar; and

blocking, by the head mounted display, the audio output when the indicator is moved beyond the second critical point on the slide bar.

5. The method of claim 4 , further comprising:

when the indicator is moved beyond the first critical point on the slide bar, providing a second user interface of the control interface for re-adjusting the data output level of the audio output;

receiving an input to the second user interface; and

re-adjusting the data output level of the audio output to a specific data output level corresponding to the received input to the second user interface.

6. The method of claim 4 , further comprising:

when the indicator is moved beyond the second critical point on the slide bar, providing a third user interface of the control interface for re-adjusting the data output level of the video output;

receiving an input to the third user interface; and

re-adjusting the data output level of the video output to a specific data output level corresponding to the received input to the third user interface.

7. The method of claim 1 , wherein the data output level of the audio output is related to at least one of:

an output volume of the audio output,

an output time of the audio output, and

an output data quantity of the audio output.

8. The method of claim 1 , wherein the data output level of the audio output is related to an output data quantity of the audio data, and

wherein the data output level of the audio output includes a first level at which no data is output, a second level at which an occurrence of an event is output as an alarm sound, and a third level at which audio content associated with the occurrence of the event is output.

9. The method of claim 1 , wherein the data output level of the video output is related to at least one of:

a size of an output area of the video output,

an output resolution of the video output,

an output time of the video output, and

an output data quantity of the video output.

10. The method of claim 1 , wherein the data output level of the video output is related to an output data quantity of the video output, and

wherein the data output level of the video output includes a first level at which no data is displayed, a second level at which an occurrence of an event is displayed using numbers or icons, and a third level at which video content associated with the occurrence of the event is displayed.

11. The method of claim 1 , further comprising:

setting one output having a greater data output level as a main output and the other output having a smaller data output level as a sub output by comparing the data output level of the audio output and the data output level of the video output level with each other;

providing a fourth user interface of the control interface for re-adjusting the data output level of at least one of the main output and the sub output; and

re-adjusting the data output level of at least one of the main output and the sub output according to an input to the fourth user interface.

12. The method of claim 11 , wherein the re-adjusting step re-adjusts either only the data output level of the main output or only the data output level of the sub output according to the input to the fourth user interface.

13. The method of claim 1 , further comprising:

detecting a presence of a user's eye adjacent to the head mounted display when the data output level of the audio output is greater than the data output level of the video output; and

displaying the control interface when the detecting step detects the presence of the user's eye.

14. The method of claim 1 , wherein the step of providing the first user interface includes displaying the first user interface on a display unit of the head mounted display.

15. The method of claim 1 , wherein the step of providing the first user interface includes displaying the first user interface on a display unit of a mobile device configured to communicate with the head mounted display.

16. A head mounted display comprising:

an input unit;

an audio output unit configured to output audio data;

a video output unit configured to output video data; and

a controller configured to:

provide a first user interface of a control interface for adjusting the audio output and the video output in relation to each other, wherein the first user interface includes an indicator for adjusting a data output level of the audio output and a data output level of the video output in relation to each other,

receive, via the input unit, an input signal corresponding to a movement of the indicator, and

adjust the data output level of the audio output and the data output level of the video output so as to be inversely related to each other according to the received input signal.

17. The head mounted display of claim 16 , wherein the first user interface of the control interface includes a slide bar on which the indicator is movable by a user to adjust the data output levels of the audio output and the video output.

18. The head mounted display of claim 17 , wherein the controller decreases the data output level of the video output when the indicator is moved by the user to a position for increasing the data output level of the audio output, and

wherein the controller decreases the data output level of the audio output when the indicator is moved by the user to a position for increasing the data output level of the video output.

19. The head mounted display of claim 17 , wherein the slide bar includes at least a first critical point for the audio output and a second critical point for the video output, and

wherein the controller blocks the video output when the indicator is moved beyond the first critical point on the slide bar, and blocks the audio output when the indicator is moved beyond the second critical point on the slide bar.

20. The head mounted display of claim 19 , wherein the controller is further configured to:

when the indicator is moved beyond the first critical point on the slide bar, provide a second user interface of the control interface for re-adjusting the data output level of the audio output,

receive an input to the second user interface, and

re-adjust the data output level of the audio output to a specific data output level corresponding to the received input to the second user interface.

21. The head mounted display of claim 19 , wherein the controller is further configured to:

when the indicator is moved beyond the second critical point on the slide bar, provide a third user interface of the control interface for re-adjusting the data output level of the video output,

receive an input to the second user interface, and

re-adjust the data output level of the video output to a specific data output level corresponding to the received input to the third user interface.

22. The head mounted display of claim 16 , wherein the data output level of the audio output is related to at least one of:

an output volume of the audio output,

an output time of the audio output, and

an output data quantity of the audio output.

23. The head mounted display of claim 16 , wherein the data output level of the audio output is related to an output data quantity of the audio data, and

wherein the data output level of the audio output includes a first level at which no data is output, a second level at which an occurrence of an event is output as an alarm sound, and a third level at which audio content associated with the occurrence of the event is output.

24. The head mounted display of claim 16 , wherein the data output level of the video output is related to at least one of:

a size of an output area of the video output,

an output resolution of the video output,

an output time of the video output, and

an output data quantity of the video output.

25. The head mounted display of claim 16 , wherein the data output level of the video output is related to an output data quantity of the video output, and

wherein the data output level of the video output includes a first level at which no data is displayed, a second level at which an occurrence of an event is displayed using numbers or icons, and a third level at which video content associated with the occurrence of the event is displayed.

26. The head mounted display of claim 16 , wherein the controller is further configured to:

set one output having a greater data output level as a main output and the other output having a smaller data output level as a sub output by comparing the data output level of the audio output and the data output level of the video output level with each other,

provide a fourth user interface of the control interface for re-adjusting the data output level of at least one of the main output and the sub output, and

re-adjust the data output level of at least one of the main output and the sub output according to an input to the fourth user interface.

27. The head mounted display of claim 26 , wherein the controller re-adjusts either only the data output level of the main output or only the data output level of the sub output according to the input to the fourth user interface.

28. The head mounted display of claim 16 , wherein the controller is further configured to:

detect a presence of a user's eye adjacent to the head mounted display when the data output level of the audio output is greater than the data output level of the video output, and

display the control interface when the controller detects the presence of the user's eye.

29. The head mounted display of claim 16 , further comprising:

a display unit configured to display the first user interface under control of the controller.

30. The head mounted display of claim 16 , wherein the controller provides the first user interface by displaying the first user interface on a display unit of a mobile device configured to communicate with the head mounted display.