WAN MODULE BASED REMOTE WAKEUP SYSTEM AND TERMINAL THEREOF

• US 20080092248A1
• Filed: 10/01/2007
• Published: 04/17/2008
• Est. Priority Date: 09/30/2006
• Status: Active Grant

• Current Assignee: Lenovo (Beijing) Limited (Lenovo Group Ltd.)
• Original Assignee: Lenovo (Beijing) Limited (Lenovo Group Ltd.)
• Inventors: Liang, Ying, Wang, Hai, He, Zhiqiang, Zhang, Xiaolin, Zhong, Jiangwei, Chen, Xingwen
• Granted Patent: US 8,621,568 B2
• Time in Patent Office: Days
• US Class Current: 726/36
• CPC Class Codes: G06F 1/26 Power supply means, e.g. regulation thereof for memories G11C
• CPC Class Codes: G06F 1/3209 Monitoring remote activity, e.g. over telephone lines or network connections
• CPC Class Codes: G06F 21/81 by operating on the power supply, e.g. enabling or disabling power-on, sleep or resume operations
• CPC Class Codes: G06F 21/85 interconnection devices, e.g. bus-connected or in-line devices
• CPC Class Codes: H04L 12/10 Current supply arrangements
• CPC Class Codes: H04L 12/12 Arrangements for remote connection or disconnection of substations or of equipment thereof
• CPC Class Codes: Y02D 30/50 in wire-line communication networks, e.g. low power modes or reduced link rate

Abstract

The present invention discloses a WAN module based remote wakeup system and apparatus, comprising a terminal having an embedded controller, a power supply module and a bus connection module and a WAN module having a serial port unit, in which a serial port bus is led from the serial port unit by the WAN module to the bus connection module in the terminal, the terminal further includes a security control module connected to the embedded controller, the power supply module and a serial port bus led from the WAN module side by the bus connection module, respectively, and the power supply module is connected to the bus connection module; the power supply module is adapted for supplying power to the security control module and the bus connection module; the security control module is adapted for performing security verification on information carried by a signal received on the serial port bus led from the bus connection module, and for generating a wakeup signal and sending it to the embedded controller if the security verification is successful; and the embedded controller is adapted for starting the terminal according to the received wakeup signal.

Claims

1. A WAN module based remote wakeup system comprising:

a terminal (100) having an embedded controller (10), a power supply module (20) and a bus connection module (40); and

a WAN module (200) having a serial port unit;

wherein a serial port bus is led from the serial port unit by the WAN module (200) to the bus connection module (40) in the terminal (100), and the terminal (100) further includes a security control module (30) connected to the embedded controller (10), the power supply module (20) and a serial port bus (40) led from the WAN module side by the bus connection module (40), respectively, and the power supply module (20) is connected to the bus connection module (40); and

wherein said power supply module (20) is adapted for supplying power to the security control module (30) and the bus connection module (40);

said security control module (30) is adapted for performing security verification on information carried by a signal received on the serial port bus led from the bus connection module (40), and for generating a wakeup signal and sending it to the embedded controller (10) if the security verification is successful; and

said embedded controller (10) is adapted for starting the terminal according to the received wakeup signal.

2. The system of claim 1, wherein said security control module (30) comprises a micro program controller (31) for storing security verification information, performing security verification on information carried by a signal received on the serial port bus led from the bus connection module (40), and generating a wakeup signal and sending it to the embedded controller (10) if the security verification is successful.

3. The system of claim 1, wherein said security control module (30) comprises

a storage unit (33) for storing security verification information, and

a micro program controller (31) for reading the security verification information stored in the storage unit, performing security verification on information carried by a signal received on the serial port bus led from the bus connection module (40) based on the read security verification information, and generating a wakeup signal and sending it to the embedded controller (10) if the security verification is successful.

4. The system of claim 2, wherein

said power supply module (20) comprises a power supply adapter/battery unit (21), a voltage transformer (22) connected to the power supply adapter/battery unit (21), the embedded controller (10), the micro program controller (31) and the bus connection module (40), respectively, and a bus voltage transformer (23) connected to the power supply adapter/battery unit (21), the embedded controller (10), the micro program controller (21) and the bus connection module (40), respectively;

said embedded controller (10) is adapted for generating an enable signal for the voltage transformer (22) to supply power to the security control module and the bus connection module when the terminal is in power-off or sleep status, and generating an enable signal for the bus voltage transformer (23) to supply power to the security control module and the bus connection module when the terminal is in power-on status;

said voltage transformer (22) is adapted for reducing the voltage from the power supply adapter/battery unit (21) according to the enable signal from the embedded controller (10) so as to supply power to the security control module (30) and the bus connection module (40);

said bus voltage transformer (23) is adapted for reducing the voltage from the power supply adapter/battery unit (21) according to the enable signal from the embedded controller (10) so as to supply power to the security control module (30) and the bus connection module (40).

5. The system of claim 4, wherein said micro program controller (31) is further adapted for, in the power-off or sleep status of the terminal, detecting whether a WAN module is inserted in the bus connection module (40), performing identity verification on the inserted WAN module, and sending an enable signal to the voltage transformer (22) to stop the voltage transformer (22) from supplying power to the security control module (30) and the bus connection module (40) if the identity verification on the WAN module fails.

6. The system of claim 2, wherein said terminal (100) comprises a south bridge or PCMCIA/Cardbus controller (50), and said security control module (30) further comprises a switching unit (32) connected to the micro program controller (31), the south bridge or PCMCIA/Cardbus controller (50) and the serial port bus led from the bus connection module (40), respectively.

13. The system of claim 3, wherein

said power supply module (20) comprises a power supply adapter/battery unit (21), a voltage transformer (22) connected to the power supply adapter/battery unit (21), the embedded controller (10), the micro program controller (31) and the bus connection module (40), respectively, and a bus voltage transformer (23) connected to the power supply adapter/battery unit (21), the embedded controller (10), the micro program controller (21) and the bus connection module (40), respectively;

said embedded controller (10) is adapted for generating an enable signal for the voltage transformer (22) to supply power to the security control module and the bus connection module when the terminal is in power-off or sleep status, and generating an enable signal for the bus voltage transformer (23) to supply power to the security control module and the bus connection module when the terminal is in power-on status;

said voltage transformer (22) is adapted for reducing the voltage from the power supply adapter/battery unit (21) according to the enable signal from the embedded controller (10) so as to supply power to the security control module (30) and the bus connection module (40);

said bus voltage transformer (23) is adapted for reducing the voltage from the power supply adapter/battery unit (21) according to the enable signal from the embedded controller (10) so as to supply power to the security control module (30) and the bus connection module (40).

14. The system of claim 3, wherein said terminal (100) comprises a south bridge or PCMCIA/Cardbus controller (50), and said security control module (30) further comprises a switching unit (32) connected to the micro program controller (31), the south bridge or PCMCIA/Cardbus controller (50) and the serial port bus led from the bus connection module (40), respectively.

7. A terminal supporting WAN module-based remote wakeup comprising:

a terminal (100) having an embedded controller (10), a power supply module (20) and a bus connection module (40),

wherein the terminal (100) further comprises a security control module (30) connected to the embedded controller (10), the power supply module (20) and a serial port bus led from the bus connection module (40), respectively, and the power supply module (20) is connected to the bus connection module (40); and

wherein said power supply module (20) is adapted for supplying power to the security control module (30) and the bus connection module (40);

said security control module (30) is adapted for performing security verification on information carried by a signal received on the serial port bus led from the bus connection module (40), and for generating a wakeup signal and sending it to the embedded controller (10) if the security verification is successful; and

said embedded controller (10) is adapted for starting the terminal according to the received wakeup signal.

8. The terminal of claim 7, wherein said security control module (30) comprises a micro program controller (31) for storing security verification information, performing security verification on information carried by a signal received on the serial port bus led from the bus connection module (40), and generating a wakeup signal and sending it to the embedded controller (10) if the security verification is successful.

9. The terminal of claim 7, wherein said security control module (30) comprises

a storage unit (33) for storing security verification information, and

a micro program controller (31) for reading the security verification information stored in the storage unit (33), performing security verification on information carried by a signal received on the serial port bus led from the bus connection module (40) based on the read security verification information, and generating a wakeup signal and sending it to the embedded controller (10) if the security verification is successful.

10. The terminal of claim 8, wherein

said power supply module (20) comprises a power supply adapter/battery unit (21), a voltage transformer (22) connected to the power supply adapter/battery unit (21), the embedded controller (10), the micro program controller (31) and the bus connection module (40), respectively, and a bus voltage transformer (23) connected to the power supply adapter/battery unit (21), the embedded controller (10), the micro program controller (31) and the bus connection module (40), respectively;

said embedded controller (10) is adapted for generating an enable signal for the voltage transformer (22) to supply power to the security control module and the bus connection module when the terminal is in power-off or sleep status, and generating an enable signal for the bus voltage transformer (23) to supply power to the security control module and the bus connection module when the terminal is in power-on status;

said voltage transformer (22) is adapted for reducing the voltage from the power supply adapter/battery unit (21) according to the enable signal from the embedded controller (10) so as to supply power to the security control module (30) and the bus connection module (40);

said bus voltage transformer (23) is adapted for reducing the voltage from the power supply adapter/battery unit (21) according to the enable signal from the embedded controller (10) so as to supply power to the security control module (30) and the bus connection module (40).

11. The terminal of claim 10, wherein said micro program controller (31) is further adapted for, in the power-off or sleep status of the terminal, detecting whether a WAN module is inserted in the bus connection module (40), performing identity verification on the inserted WAN module, and sending an enable signal to the voltage transformer (22) to stop the voltage transformer (22) from supplying power to the security control module (30) and the bus connection module (40) if the identity verification on the WAN module fails.

12. The terminal of claim 8, further comprising a south bridge or PCMCIA/Cardbus controller (50);

wherein said security control module (30) further comprises a switching unit (32) connected to the micro program controller (31), the south bridge or PCMCIA/Cardbus controller (50) and the serial port bus led from the bus connection module (40), respectively.

15. The terminal of claim 9, wherein

said power supply module (20) comprises a power supply adapter/battery unit (21), a voltage transformer (22) connected to the power supply adapter/battery unit (21), the embedded controller (10), the micro program controller (31) and the bus connection module (40), respectively, and a bus voltage transformer (23) connected to the power supply adapter/battery unit (21), the embedded controller (10), the micro program controller (31) and the bus connection module (40), respectively;

said embedded controller (10) is adapted for generating an enable signal for the voltage transformer (22) to supply power to the security control module and the bus connection module when the terminal is in power-off or sleep status, and generating an enable signal for the bus voltage transformer (23) to supply power to the security control module and the bus connection module when the terminal is in power-on status;

said voltage transformer (22) is adapted for reducing the voltage from the power supply adapter/battery unit (21) according to the enable signal from the embedded controller (10) so as to supply power to the security control module (30) and the bus connection module (40);

said bus voltage transformer (23) is adapted for reducing the voltage from the power supply adapter/battery unit (21) according to the enable signal from the embedded controller (10) so as to supply power to the security control module (30) and the bus connection module (40).

16. The terminal of claim 9, further comprising a south bridge or PCMCIA/Cardbus controller (50);

wherein said security control module (30) further comprises a switching unit (32) connected to the micro program controller (31), the south bridge or PCMCIA/Cardbus controller (50) and the serial port bus led from the bus connection module (40), respectively.