DISPLAY DEVICE AND CONTROL METHOD THEREOF

• US 20110169734A1
• Filed: 01/12/2011
• Published: 07/14/2011
• Est. Priority Date: 01/12/2010
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: CHO, Sanghyun, Lim, Youngwan, Kim, Joomin, Kim, Sijin, Kwon, Youk, Lee, Janghee
• Granted Patent: US 8,878,775 B2
• Time in Patent Office: Days
• US Class Current: 345/157
• CPC Class Codes: G06F 3/0346 with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors
• CPC Class Codes: G06F 3/038 Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
• CPC Class Codes: G08C 2201/32 Remote control based on movements, attitude of remote control device
• CPC Class Codes: H04N 21/42204 User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor constructive details of casings for the remote control device H01H9/0235; user interfaces for controlling a tuning device of a television receiver through a remote control H03J9/00; remote control of peripheral devices connected to a television receiver through the remote control device of the television receiver H04B1/205
• CPC Class Codes: H04N 21/42222 Additional components integrated in the remote control device, e.g. timer, speaker, sensors for detecting position, direction or movement of the remote control, microphone or battery charging device

Abstract

A display device and a control method thereof are discussed. A display device and a control method thereof according to an embodiment of the present invention comprise a display unit displaying an object; a receiver receiving a wireless signal from a three dimensional (3D) pointing device recognizing a three dimensional motion; and a controller calculating a trajectory of the 3D pointing device corresponding to at least one of an absolute coordinate area and a relative coordinate area based on the received wireless signal and determining a position of the displayed object according to a property of an area to which the trajectory belongs and displaying the determined position.

Claims

1. A display device, comprising:

a display unit configured to display an object;

a receiver configured to receive a wireless signal from a three dimensional (3D) pointing device sensing a three dimensional motion comprising a pointing point indicated by the three dimensional pointing device; and

a controller configured to calculate a trajectory of the 3D pointing device corresponding to at least one of an absolute coordinate area and a relative coordinate area based on the received wireless signal and determine a position of the displayed object according to a property of an area to which the trajectory belongs,

wherein the controller is further configured to calculate the trajectory based on a predetermined absolute reference point when the pointing point belongs to the absolute coordinate area, and the trajectory based on relative position of the point when the pointing point belongs to the relative coordinate area.

2. The display device of claim 1, wherein the controller changes a position of the object according to the property of the absolute coordinate area for a trajectory belonging to the absolute coordinate area out of the calculated trajectory and changes a position of the object according to the property of the relative coordinate area for a trajectory belonging to the relative coordinate area out of the calculated trajectory.

3. The display device of claim 1, wherein the controller, if the calculated trajectory enters the relative coordinate area from the absolute coordinate area, determines whether to change a position of the displayed object according to a trajectory corresponding to the relative coordinate area.

4. The display device of claim 3, wherein the controller determines whether to change a position of the displayed object according to a predetermined switching mode comprising an automatic switching mode and a manual switching mode.

5. The display device of claim 1, wherein the controller, if the calculated trajectory enters the absolute coordinate area from the relative coordinate area, determines a position of the object to correspond to the trajectory which has entered the absolute coordinate area.

6. The display device of claim 1, wherein the controller calculates the trajectory based on a signal included in the wireless signal, the signal included in the wireless signal corresponding to signals sensed by at least multiple sensors from among a geomagnetic sensor, an accelerometer, and a gyro sensor.

7. The display device of claim 1, wherein the controller calculates the trajectory by using the wireless signal transmitted from the 3D pointing device, the wireless signal being based on signals coming from at least multiple sensors from among a geomagnetic sensor, an accelerometer, and a gyro sensor.

8. The display device of claim 6, wherein the controller uses at least multiple signals from among the geomagnetic sensor, the accelerometer, and the gyro sensor for calculating a trajectory in the absolute coordinate area.

9. The display device of claim 1, wherein the controller determines the position by changing the trajectory with a predetermined ratio.

10. The display device of claim 9, wherein the controller determines the ratio according to a distance between the 3D pointing device and the display device.

11. The display device of claim 10, wherein the controller determines the ratio in proportion to a distance between the 3D pointing device and the display device.

12. The display device of claim 9, wherein the controller makes the trajectory magnified or reduced according to the ratio.

13. The display device of claim 1, wherein the controller determines the absolute reference point with respect to one point of the absolute coordinate area.

14. The display device of claim 1, wherein the object corresponds to at least one of a cursor, a pointer, and an indicator displayed in the display unit.

15. The display device of claim 1, wherein the controller sets the absolute coordinate area to be actually the same as the display unit area.

16. The display device of claim 1, wherein the controller sets the absolute coordinate area not to overlap with the display unit area.

17. The display device of claim 1, wherein the 3D pointing device recognizes the three dimensional motion by using at least multiple sensors from among a geomagnetic sensor, an accelerometer, and a gyro sensor.

18. A display device, comprising:

a display unit configured to display an object;

a receiver configured to receive a wireless signal from a three dimensional (3D) pointing device recognizing a three dimensional motion; and

a controller configured to determine a pointing point at which the 3D pointing device points based on the received wireless signal and determine a position of the displayed object according to a property of an area to which the determined pointing point belongs between an absolute coordinate area and a relative coordinate area and display the determined position.

19. The display device of claim 18, wherein the controller determines a position of the displayed object with respect to an absolute reference point if the determined pointing point belongs to the absolute coordinate area and determines a position of the displayed object based on a relative position from a pointing point before the determined pointing point if the determined pointing point belongs to the relative coordinate area.

20. The display device of claim 18, wherein the controller, if the determined pointing point belongs to the absolute coordinate area and a pointing point before the determined pointing point belongs to the relative coordinate area, determines whether to continue changing a position of the displayed object.

21. The display device of claim 18, wherein the controller, if the determined pointing point belongs to the relative coordinate area and a pointing point before the determined pointing point belongs to the absolute coordinate area, determines a position of the displayed object as the determined pointing point.

22. The display device of claim 18, wherein the controller determines the pointing point based on the wireless signal transmitted from the 3D pointing device, the wireless signal being based on a signal obtained from at least outputs of multiple sensors from among a geomagnetic sensor, an accelerometer, and a gyro sensor or based on at least multiple signals from among the geomagnetic sensor, the accelerometer, and the gyro sensor.

23. The display device of claim 22, wherein the controller uses a signal of the geomagnetic sensor to calculate a trajectory in the absolute coordinate area.

24. The display device of claim 18, wherein the controller determines the position by changing the trajectory with a predetermined ratio.

25. The display device of claim 19, wherein the controller determines the absolute reference point with respect to one point of the absolute coordinate area.

26. The display device of claim 18, wherein the controller sets the absolute coordinate area to be actually the same as the display unit area.

27. A display device, comprising:

a display unit configured to display an object;

a receiver configured to receive a wireless signal from a three dimensional (3D) pointing device recognizing a three dimensional motion through a sensor unit; and

a controller configured to calculate a trajectory of the 3D pointing device corresponding to at least one of an absolute coordinate area and a relative coordinate area based on the received wireless signal and determine a position of the displayed object according to a property of an area to which the trajectory belongs and displaying the determined position,

the absolute coordinate area corresponding to an area where the trajectory is calculated with respect to a predetermined absolute reference point and the relative coordinate area corresponding to an area where the trajectory is calculated based on relative positions of points forming the trajectory.

28. A control method for a display device, comprising:

receiving a wireless signal from a 3D pointing device;

calculating a trajectory of the 3D pointing device belonging to at least one area between an absolute coordinate area and a relative coordinate area based on the received wireless signal; and

a first determination of determining position change of an object displayed in a display unit according to a property of an area to which the trajectory belongs,

the absolute coordinate area corresponding to an area where the trajectory is calculated with respect to a predetermined absolute point and the relative coordinate area corresponding to an area where the trajectory is calculated based on relative positions of points forming the trajectory.

29. The control method of claim 28, wherein the first determination comprises:

a second determination of determining position change of the object according to a property of the absolute coordinate area for a trajectory belonging to the absolute coordinate area out of the calculated trajectory; and

a third determination of determining position change of the object according to a property of the relative coordinate area for a trajectory belonging to the relative coordinate area out of the calculated trajectory.

30. The control method of claim 29, further comprising a fourth determination of determining whether to change a position of the displayed object according to a trajectory belonging to the relative coordinate area if the calculated trajectory enters from the absolute coordinate area to the relative coordinate area.

31. The control method of claim 30, wherein whether to continue changing a position of the displayed object is determined by a predetermined switching mode and the switching mode comprises an automatic switching mode and a manual switching mode.

32. The control method of claim 28, if the calculated trajectory enters from the relative coordinate area to the absolute coordinate area, further comprising a fifth determination of determining a position of the object to correspond to the trajectory which has entered the absolute coordinate area.

33. The control method of claim 28, wherein the trajectory is calculated based on a signal obtained from outputs of multiple sensors from among a geomagnetic sensor, an accelerometer, and a gyro sensor, the signal being included in the wireless signal.

34. The control method of claim 28, wherein the trajectory is calculated by using the wireless signal transmitted from the 3D pointing device, the wireless signal being based on signals coming from at least multiple sensors from among a geomagnetic sensor, an accelerometer, and a gyro sensor.

35. The control method of claim 33, wherein at least multiple signals from among the geomagnetic sensor, the accelerometer, and the gyro sensor are used for calculating a trajectory in the absolute coordinate area.

36. The control method of claim 28, wherein the first determination comprises a fifth determination of determining the position change by changing the trajectory with a predetermined ratio.

37. The control method of claim 36, wherein the ratio is determined according to a distance between the 3D pointing device and the display device.

38. The control method of claim 37, wherein the ratio is determined in proportion to a distance between the 3D pointing device and the display device.

39. The control method of claim 36, wherein the ratio is used to make the trajectory magnified or reduced.

40. The control method of claim 28, further comprising setting up the absolute reference point.

41. The control method of claim 40, wherein the setting up the absolute reference point comprises:

setting up a target area in one point of the absolute coordinate area; and

indicating for the 3D pointing device to direct towards the target area.

42. The control method of claim 40, wherein the absolute reference point is set up while pairing up the 3D pointing device with the display device.

43. The control method of claim 28, wherein the object corresponds to at least one of a cursor, a pointer, and an indicator displayed on the display unit.

44. The control method of claim 28, wherein the absolute coordinate area is set up to be actually the same as the display unit area.

45. The control method of claim 28, wherein the absolute coordinate area is set up not to overlap with the display unit area.