WAN module based remote wakeup system and terminal thereof

• US 8,621,568 B2
• Filed: 10/01/2007
• Issued: 12/31/2013
• 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: He, Zhiqiang, Chen, Xingwen, Zhong, Jiangwei, Wang, Hai, Zhang, Xiaolin, Liang, Ying
• Primary Examiner(s): Rahman, Mahfuzur
• Application Number:
  US11/865,485
• Publication Number:
  US 20080092248A1
• Time in Patent Office: 2,283 Days
• Field of Search: 726/3
• US Class Current: 726/3
• 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

A WAN module based remote wakeup system and apparatus comprise a terminal including a security control module connected to an embedded controller, a power supply module and a serial port bus led from an WAN module side by a bus connection module, respectively, and the power supply module is connected to the bus connection module. The power supply module is adapted to supply power to the security control module and the bus connection module. The security control module is adapted to perform security verification on information carried by a signal received on the serial port bus led from the bus connection module, and to generate a wakeup signal and send it to the embedded controller if the security verification is successful. The embedded controller is adapted to start the terminal according to the received wakeup signal.

Claims

1. A Wireless Access Network (WAN) module based remote wakeup system 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;

wherein a serial port bus is led from the serial port unit by the WAN module to the bus connection module in the terminal, and 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; and

wherein the power supply module is adapted to supply power to the security control module and the bus connection module;

the security control module comprises a micro program controller which connects with the power supply module and the embedded controller;

wherein the power supply module comprises a power supply adapter/battery unit, a voltage transformer connected to the power supply adapter/battery unit, the embedded controller, the micro program controller and the bus connection module, respectively, and a bus voltage transformer connected to the power supply adapter/battery unit, the embedded controller, the micro program controller and the bus connection module, respectively;

the embedded controller is adapted to generate an enable signal for the voltage transformer to supply power to the security control module and the bus connection module when the terminal is in power-off or sleep status, and generate the enable signal for the bus voltage transformer to supply power to the security control module and the bus connection module when the terminal is in power-on status;

the voltage transformer is adapted to reduce a voltage from the power supply adapter/battery unit according to the enable signal from the embedded controller so as to supply power to the security control module and the bus connection module;

the bus voltage transformer is adapted reduce the voltage from the power supply adapter/battery unit according to the enable signal from the embedded controller so as to supply power to the security control module and the bus connection module;

the security control module is adapted to perform security verification on information carried by a signal received on the serial port bus led from the bus connection module, generate a wakeup signal and send it to the embedded controller if the security verification is successful; and

the embedded controller is adapted to start the terminal according to the received wakeup signal,

wherein the micro program controller is further adapted for storing security verification information;

wherein the micro program controller is further adapted, in the power-off or sleep status of the terminal, to detect whether the WAN module is inserted in the bus connection module, perform identity verification on the inserted WAN module, and send the enable signal to the voltage transformer to stop the voltage transformer from supplying power to the security control module and the bus connection module if the identity verification on the WAN module fails.

2. The system of claim 1, wherein the security control module comprises

a storage unit storing security verification information, and

the micro program controller 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 based on the read security verification information, and generating a wakeup signal and sending it to the embedded controller if the security verification is successful.

3. The system of claim 1, wherein the terminal comprises a south bridge or PCMCIA/Cardbus controller, and the security control module further comprises a switching unit connected to the micro program controller, the south bridge or PCMCIA/Cardbus controller and the serial port bus led from the bus connection module, respectively.

4. A terminal supporting Wireless Access Network (WAN) module-based remote wakeup comprising:

the terminal having an embedded controller, a power supply module and a bus connection module,

wherein the terminal further comprises a security control module connected to the embedded controller, the power supply module and a serial port bus led from the bus connection module, respectively, and the power supply module is connected to the bus connection module; and

wherein the power supply module is adapted to supply power to the security control module and the bus connection module;

the security control module comprises a micro program controller which connects with the power supply module and the embedded controller;

wherein the power supply module comprises a power supply adapter/battery unit, a voltage transformer connected to the power supply adapter/battery unit, the embedded controller, the micro program controller and the bus connection module, respectively, and a bus voltage transformer connected to the power supply adapter/battery unit, the embedded controller, the micro program controller and the bus connection module, respectively;

the embedded controller is adapted to generate an enable signal for the voltage transformer to supply power to the security control module and the bus connection module when the terminal is in power-off or sleep status, and generate an enable signal for the bus voltage transformer to supply power to the security control module and the bus connection module when the terminal is in power-on status;

the voltage transformer is adapted to reduce a voltage from the power supply adapter/battery unit according to the enable signal from the embedded controller so as to supply power to the security control module and the bus connection module;

the bus voltage transformer is adapted reduce the voltage from the power supply adapter/battery unit according to the enable signal from the embedded controller so as to supply power to the security control module and the bus connection module;

the security control module is adapted to perform security verification on information carried by a signal received on the serial port bus led from the bus connection module, generate a wakeup signal and send it to the embedded controller if the security verification is successful; and

the embedded controller is adapted to start the terminal according to the received wakeup signal,

wherein the micro program controller is further adapted for storing security verification information;

wherein the micro program controller is further adapted, in the power-off or sleep status of the terminal, to detect whether the WAN module is inserted in the bus connection module, perform identity verification on the inserted WAN module, and send the enable signal to the voltage transformer to stop the voltage transformer from supplying power to the security control module and the bus connection module if the identity verification on the WAN module fails.

5. The terminal of claim 4, wherein the security control module comprises

a storage unit storing security verification information, and

the micro program controller 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 based on the read security verification information, and generating a wakeup signal and sending it to the embedded controller if the security verification is successful.

6. The terminal of claim 4, further comprising a south bridge or PCMCIA/Cardbus controller;

wherein the security control module further comprises a switching unit connected to the micro program controller, the south bridge or PCMCIA/Cardbus controller and the serial port bus led from the bus connection module, respectively.