Method for exiting a low-consumption standby mode, and associated device

• US 10,009,842 B2
• Filed: 06/07/2012
• Issued: 06/26/2018
• Est. Priority Date: 06/09/2011
• Status: Active Grant

• Current Assignee: InterDigital Patent Holdings, Inc. (InterDigital, Inc.)
• Original Assignee: Thomson Licensing (Vantiva SA)
• Inventors: Jeanne, Ludovic, Moraillon, Jean-Yves, Steyer, Jean-Marie
• Primary Examiner(s): Lai, Andrew
• Assistant Examiner(s): Lee, Andrew C
• Application Number:
  US14/124,710
• Publication Number:
  US 20140198697A1
• Time in Patent Office: 2,210 Days
• Field of Search: 370311
• CPC Class Codes: H04N 21/4436 Power management, e.g. shutting down unused components of the receiver power management in computer systems G06F1/3203; hibernate or awake process in computer systems G06F9/4418
• CPC Class Codes: H04W 52/0212 managed by the network, e.g. network or access point is master and terminal is slave
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

The invention relates to a method for controlling a device operating in several operating modes corresponding to different levels of power consumption and comprising a first and a second communication interface, said method being characterized in that it comprises the steps of activating said second communication interface upon receiving a first wake-up message via said first interface and receiving a second wake-up message via said second communication interface, said second wake-up message resulting in the exit from the low-power standby mode of the device.

Claims

1. A method for controlling a device, said device operating in several operating modes corresponding to different levels of power consumption and comprising a first and a second communication interface for communicating with other devices belonging respectively to a first and a second network, wherein said method comprises:

activating said second communication interface upon receiving a first wake-up message via said first communication interface when said device is in a first operating mode corresponding to a first level of power consumption, said activation resulting in a second level of power consumption higher than said first level of power consumption;

receiving a second wake-up message via said second communication interface, said second wake-up message resulting in the closure of power supply lines with a view to supplying power to a control unit, an exit from a standby mode, and consequently a transition of said device to an operating mode corresponding to a third level of power consumption, said third level of power consumption being higher than said second level of power consumption.

2. The method according to claim 1, wherein said first operating mode corresponds to a configuration of said device wherein only said first communication interface is activated.

3. The method according to claim 1, wherein said second operating mode corresponds to a configuration of said device wherein only said first and second communication interface are activated.

4. The method according to claim 1, wherein said first communication interface is a wireless communication interface.

5. The method according to claim 1, wherein said second communication interface is a network interface of Ethernet type.

6. The method according to claim 1, wherein said second communication interface is a wireless network interface, compatible with the 802.11 transmission standards.

7. A device operating in several operating modes corresponding to different levels of power consumption and comprising a first and a second communication interface for communicating with other devices belonging respectively to a first and a second network, said device further comprising a memory and at least one processor coupled to the memory, the at least one processor being configured to:

activate said second communication interface upon receiving, via said first communication interface a first wake-up message when said device is in a first operating mode corresponding to a first level of power consumption, said activation resulting in a second level of power consumption higher than said first level of power consumption; and

control said device upon receiving via said second communication interface a second wake-up message, said second wake-up message resulting in the closure of power supply lines with a view to supplying power to a control unit, an exit from a standby mode, and consequently a transition of said device to an operating mode corresponding to a third level of power consumption, said third level of power consumption being higher than said second level of power consumption.

8. The device according to claim 7, wherein said first operating mode corresponds to a configuration of said device wherein only said first communication interface is activated.

9. The device according to claim 7, wherein said second operating mode corresponds to a configuration of said device wherein only said first and second communication interface are activated.

10. The device according to claim 7, wherein said first communication interface is a wireless communication interface.

11. The device according to claim 7, wherein said second communication interface is a network interface of Ethernet type.

12. The device according to claim 7, wherein said second communication interface is a wireless network interface, compatible with the 802.11 transmission standards.