Data processing device

Abstract

A data processing device includes a data storage section that stores data; an authentication information storage section that stores first authentication information registered by a user; an input section that allows the user to input second authentication information; a first judgment section that permits reading of the data stored in the data storage section when the first authentication information matches the second authentication information, and does not permit reading of the data stored in the data storage section when the first authentication information does not match the second authentication information by acquiring the first authentication information from the authentication information storage section when the second authentication information is input by the input section and by comparing the first authentication information with the second authentication information; a slot into which an external storage device can be inserted; and a writing admission section that permits writing of the data stored in an external storage device into the data storage section without input of the second authentication information when the external storage device is inserted into the slot.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be described with reference to the accompanying drawings, wherein like numbers reference like elements.

FIG. 1 is a block diagram illustrating an example of an internal configuration of a data processing device according to a first embodiment of the invention.

FIG. 2 is a front view illustrating a layout of the data processing device shown in FIG. 1.

FIG. 3 is a flowchart illustrating an example of a start-up process executed by the data processing device shown in FIG. 1.

FIG. 4 is a flowchart illustrating an example of a memory card registration process executed by the data processing device shown in FIG. 1.

FIG. 5 is a block diagram illustrating an example of an internal configuration of a data processing device according to a second embodiment of the invention.

FIG. 6 is a front view illustrating an example of a layout of the data processing device shown in FIG. 5.

FIG. 7 is a flowchart illustrating an example of a main control process executed by the data processing device shown in FIG. 5.

FIG. 8 is a diagram illustrating an example of a menu screen displayed on a display screen of the data processing device shown in FIG. 5.

FIG. 9 is a diagram illustrating an example of an authentication information input screen displayed on the display screen of the data processing device shown in FIG. 5.

Claims

1. A data processing device comprising: a data storage section that stores data;an authentication information storage section that stores first authentication information registered by a user;an input section that allows the user to input second authentication information;a first judgment section that permits reading of the data stored in the data storage section when the first authentication information matches the second authentication information, and does not permit reading of the data stored in the data storage section when the first authentication information does not match the second authentication information by acquiring the first authentication information from the authentication information storage section when the second authentication information is input by the input section and by comparing the first authentication information with the second authentication information;a slot into which an external storage device can be inserted; anda writing admission section that permits writing of the data stored in the external storage device into the data storage section without input of the second authentication information when the external storage device is inserted into the slot.

2. The data processing device according to claim 1, further comprising: a registration section that registers at least one external storage device as an storage device from which data is permitted to be read when the external storage device is inserted into the slot in the data processing device.

3. The data processing device according to claim 2, further comprising: a second judgment section that permits reading of data stored in the data storage section when the external storage device is a registered external storage device and does not permit reading of the data stored in the data storage section when the external storage device is an unregistered external storage device by judging whether or not the external storage device is an external storage device registered by the registration section when the external storage device is inserted into the slot.

4. The data processing device according to claim 3, wherein the registration section generates authentication information and writes the generated authentication information into the external storage device inserted into the slot, and wherein the second judgment section reads the authentication information from the external storage device inserted into the slot and judges that the external storage device is a registered external storage device when the read authentication information matches the generated authentication information.

5. The data processing device according to claim 3, wherein the registration section reads identification information of the external storage device from the external storage device inserted into the slot and stores the read identification information in an identification information storage section, and wherein the second judgment section reads the identification information from the external storage device inserted into the slot and judges that the external storage device is a registered external storage device when the read identification information matches the identification information stored in the identification information storage section.

6. The data processing device according to claim 1, further comprising: a start-up section that starts up the data processing device in a state in which the data stored in the data storage section cannot be read when power is turned on.

7. The data processing device according to claim 6, further comprising: a host connecting section that is connected to a host terminal as a device terminal and allows the host terminal to read the data stored in the data storage section,wherein the start-up section is started up so that the host terminal is disconnected from the data processing device although the host terminal is connected to the host connecting section.

8. The data processing device according to claim 7, wherein the host terminal is connected to the data processing device when the host terminal is connected to the host connecting section after a first judgment section judges that first authentication information matches second authentication information.

9. A method of controlling a data processing device including a data storage section storing data, an authentication information storage section storing first authentication information registered by a user, and a slot into which an external storage device can be inserted, the method comprising the steps of: allowing the user to input second authentication information;permitting reading of the data stored in the data storage section when the first authentication information matches the second authentication information, but not permitting reading of the data stored in the data storage section when the first authentication information does not match the second authentication information by acquiring the first authentication information from the authentication information storage section when the second authentication information is input by the input section and by comparing the first authentication information with the second authentication information; andpermitting writing of the data stored in the external storage device into the data storage section without input of the second authentication information when the external storage device is inserted into the slot.

10. A data processing device comprising: a data storage section that stores data;a host connecting section that is connected to a host terminal as a device terminal and allows the host terminal to read the data stored in the data storage section, the host connecting section being disconnected from the host terminal;an authentication information storage section that stores first authentication information registered by a user;an input section that allows the user to input second authentication information; anda first judgment section that allows the host terminal to read the data stored in the data storage section by making a connection with the host terminal when the first authentication information matches the second authentication information and the host terminal is connected to the host connecting section, but does not allow the host terminal to read the data stored in the data storage section by maintaining disconnection from the host terminal although the host terminal is connected to the host connecting section when the first authentication information does not match the second authentication information by acquiring the first authentication information from the authentication information storage section when the second authentication information is input by the input section and by comparing the first authentication information with the second authentication information.

11. The data processing device according to claim 12, further comprising: a slot into which an external storage device can be inserted;a registration section that registers at least one external storage device as an storage device from which data is permitted to be read when the external storage device is inserted into the slot in the data processing device; anda second judgment section that makes a connection with the host terminal when the host terminal is connected to the host connecting section without input of the second authentication information when the external storage device is an unregistered external storage device by judging whether or not the external storage device is an external storage device registered by the registration section when the external storage device is inserted into the slot.

12. The data processing device according to claim 13, further comprising: a writing admission section that permits writing of the data stored in the external storage device into the data storage section without input of the second authentication information and although the external storage device is not a registered external storage device when the external storage device is inserted into the slot.

13. The data processing device according to claim 12, wherein a display screen is not provided in the data processing device.