INFORMATION PROCESSING DEVICE AND ITS CONTROL METHOD

• US 20090144833A1
• Filed: 08/19/2008
• Published: 06/04/2009
• Est. Priority Date: 11/30/2007
• Status: Abandoned Application

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: GUSHIKEN, Hajime
• Application Number:
  US12/194,376
• Publication Number:
  US 20090144833A1
• Time in Patent Office: Days
• US Class Current: 726/27
• CPC Class Codes: G06F 21/575 Secure boot
• CPC Class Codes: G06F 21/80 in storage media based on magnetic or optical technology, e.g. disks with sectors preventing unauthorised reproduction or copying of disc-type recordable media G11B20/00

Abstract

According to one embodiment, an information processing device includes power section for supplying electric power to a system, a control section for controlling ON/OFF of the power section, a receiving section for receiving location information, a memory section for storing a first location information received by the receiving section when an instruction for booting the system is received, and a second location information received by the receiving section prior to receipt of the first location information, and a restriction section for executing restriction on the system when the control section determines that information, which is based on comparison of the first and second location information, matches a condition for restricting the system.

Claims

1. An information processing device comprising:

a power supply for supplying electric power to a system;

a controller for controlling the power supply;

a receiver for receiving location information;

a memory for storing a first location information received by the receiver when an instruction for booting the system is received, and a second location information received by the receiver prior to receipt of the first location information; and

a restriction module for executing a restriction on the system based on a comparison of the first and second location information by the controller.

2. The information processing device of claim 1, wherein the restriction is put on the system when a difference between the first location information and the second location information exceeds a predetermined threshold value.

3. The information processing device of claim 2, wherein booting of the system is prohibited when the difference between the first location information and the second location information exceeds the threshold value.

4. The information processing device of claim 2, wherein, access to a predetermined area of the memory is prohibited after boot of the system when the difference between the first location information and the second location information exceeds the threshold value.

5. The information processing device of claim 1, wherein the receiver is either a GPS module or a 3G module.

6. A control method used in an information processing device having a memory, a power supply for supplying power to a system, a controller for controlling the power supply, and a receiver for receiving location information, wherein the control method comprises:

receiving a first location information by the receiver, when an instruction for booting the system is received;

comparing the first location information and a second location information received by the receiver prior to the receipt of the first location information and stored in the memory;

putting a restriction on the system based on the comparison of the first location information and the second location information.

7. The control method of claim 6, further comprising putting the restriction on the system when a difference between the first location information and the second location information exceeds a predetermined threshold value.

8. The control method of claim 7, further comprising prohibiting booting of the system when the difference between the first location information and the second location information exceeds the predetermined threshold value.

9. The control method of claim 7, further comprising prohibiting access to a predetermined area of the memory after booting of the system, when the difference between the first location information and the second location information exceeds the predetermined threshold value.