USER TERMINAL FOR CONTROLLING DISPLAY DEVICE AND CONTROL METHOD THEREOF

• US 20160150472A1
• Filed: 06/16/2015
• Published: 05/26/2016
• Est. Priority Date: 11/21/2014
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: YOON, Seung-il, KA, Jee-hoon, KIM, Sang-jin, NAM, Dae-hyun, LEE, Kyung-hoon, JUNG, Kyung-hee, YUN, Hyun-kyu, JUN, Byung-jo
• Granted Patent: US 10,015,739 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 1/3209 Monitoring remote activity, e.g. over telephone lines or network connections
• CPC Class Codes: G06F 1/3293 by switching to a less power-consuming processor, e.g. sub-CPU
• CPC Class Codes: H04W 52/0209 in terminal devices terminal devices per se H04W88/02
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A user terminal for controlling a display device and a control method thereof are provided. The user terminal includes a communicator configured to communicate with the display device, a main controller configured to control the user terminal, and a sub-controller configured to control the user terminal while the user terminal is in a sleep mode, wherein the sub-controller is configured to change a mode of the user terminal from the sleep mode to a standby mode in response to the communicator receiving environmental change detection information or user detection information from the display device while the user terminal is in the sleep mode.

Claims

1. A user terminal configured to control a display device, the user terminal comprising:

a communicator configured to communicate with the display device;

a main controller configured to control the user terminal; and

a sub-controller configured to control the user terminal while the user terminal is in a sleep mode,

wherein the sub-controller is configured to change a mode of the user terminal from the sleep mode to a standby mode in response to the communicator receiving environmental change detection information or user detection information from the display device while the user terminal is the sleep mode.

2. The user terminal as claimed in claim 1, wherein the main controller is configured to be in a power-off state while the user terminal is in the sleep mode, and

the sub-controller is configured to change the mode of the user terminal to the standby mode by turning on power to the main controller in response to the communicator receiving the environmental change detection information or the user detection information from the display device while the user terminal is in the sleep mode.

3. The user terminal as claimed in claim 1, further comprising a volatile memory,

wherein the sleep mode is one of a second sleep mode in which power to the volatile memory is turned on and a first sleep mode in which the power to the volatile memory is turned off.

4. The user terminal as claimed in claim 3, wherein the sub-controller is configured to change the mode of the user terminal from the first sleep mode to the second sleep mode by turning on the power to the volatile memory in response to the communicator receiving environmental change detection information which indicates detection of a first event from the display device while the user terminal is in the first sleep mode.

5. The user terminal as claimed in claim 4, wherein the first event comprises at least one of a change in illumination outside a threshold range, a change in temperature outside a threshold range, and a sound input that exceeds a threshold level.

6. The user terminal as claimed in claim 5, wherein the sub-controller is configured to change the mode of the user terminal to from the second sleep mode to the standby mode by turning on power to the main controller in response to the communicator receiving user detection information which indicates detection of a second event from the display device while the user terminal is in the second sleep mode.

7. The user terminal as claimed in claim 6, wherein the second event comprises at least one of a presence of a user within a threshold distance, the display device is powered on, and a user voice input.

8. A user terminal configured to control a display device, the user terminal comprising:

a communicator configured to communicate with the display device;

a main controller configured to control the user terminal; and

a sub-controller configured to control the user terminal while the user terminal is in a sleep mode,

wherein the main controller is configured to change a mode of the user terminal from a standby mode to the sleep mode by turning off power to the main controller in response to a predetermined event occurring while the user terminal is in the standby mode.

9. The user terminal as claimed in claim 8, wherein the predetermined event comprises not receiving from the display device for a threshold time at least one of information indicating detection of a presence of a user within a threshold distance, information indicating detection of a user voice input, information indicating a change in illumination outside a threshold range, a temperature change outside a threshold range, and information indicating a sound input exceeding a threshold level.

10. The user terminal as claimed in claim 9, further comprising:

a volatile memory; and

a nonvolatile memory,

wherein the sub-controller is configured to apply power to the main controller in response to the predetermined event occurring after the power to the main controller is turned off, and

the main controller is configured to operate to move information stored in the volatile memory to the nonvolatile memory and to turn off the power to the main controller and the volatile memory.

11. A control method of a user terminal configured to control a display device, the control method comprising:

operating the user terminal in a sleep mode; and

changing a mode of the user terminal from the sleep mode to a standby mode in response to receiving environmental change detection information or user detection information from the display device while the user terminal is in the sleep mode.

12. The control method as claimed in claim 11, wherein the user terminal comprises a main controller that is in a power-off state while the user terminal is in the sleep mode, and

the changing comprises changing the mode of the user terminal to the standby mode by turning on power to the main controller in response to receiving the environmental change detection information or the user detection information from the display device while the user terminal is in the sleep mode.

13. The control method as claimed in claim 11, wherein the user terminal comprises a volatile memory, and the sleep mode is one of a second sleep mode in which power to the volatile memory is turned on or a first sleep mode in which the power to the volatile memory is turned off.

14. The control method as claimed in claim 13, wherein the changing further comprises changing the mode of the user terminal to the second sleep mode by turning on the power to the volatile memory in response to receiving environmental change detection information which indicates detection of a first event from the display device while the user terminal is in the first sleep mode.

15. The control method as claimed in claim 14, wherein the first event comprises at least one of a change in illumination outside a threshold range, a change in temperature outside a threshold range, and a sound input that exceeds a threshold level.

16. The control method as claimed in claim 13, wherein the user terminal comprises a main controller, and the changing further comprises changing the mode of the user terminal to the standby mode by turning on power to the main controller in response to receiving user detection information which indicates detection of a second event from the display device while the user terminal is in the second sleep mode.

17. The control method as claimed in claim 16, wherein the second event comprises at least one of a presence of a user within a predetermined distance, the display device is powered on, and a user voice input.

18. A control method of a user terminal configured to control a display device comprises:

operating the user terminal in a standby mode; and

changing a mode of the user terminal to from the standby mode to a sleep mode by turning off power to a main controller included in the user terminal in response to a predetermined event occurring while the user terminal is in the standby mode.

19. The control method as claimed in claim 18, wherein the predetermined event comprises not receiving from the display device for a threshold time at least one of information indicating a presence of a user within a threshold distance, information indicating a user voice input, information indicating a change in illumination outside a threshold range, information indicating a change in temperature outside a threshold range, and information indicating a sound input exceeding a threshold level.

20. The control method as claimed in claim 19, further comprising:

applying power to the main controller in response to the predetermined event occurring after the power to the main controller is turned off; and

moving information stored in a volatile memory included in the user terminal to a nonvolatile memory included in the user terminal, and turning off power to the main controller and the volatile memory.