Mobile terminal with data delete function

• US 20070077925A1
• Filed: 12/29/2005
• Published: 04/05/2007
• Est. Priority Date: 09/30/2005
• Status: Abandoned Application

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Hiyama, Yoshitaka
• Application Number:
  US11/321,810
• Publication Number:
  US 20070077925A1
• Time in Patent Office: Days
• US Class Current: 455/420
• CPC Class Codes: H04M 1/66 with means for preventing unauthorised or fraudulent calling verifying user identity or authority in secret or secure digital communications H04L9/32
• CPC Class Codes: H04M 1/72403 with means for local support of applications that increase the functionality

Abstract

To prevent information leakage due to the loss of a mobile terminal, when various delete conditions that are set in advance in the mobile terminal are satisfied, data is deleted by control performed by the mobile terminal itself. By allowing the mobile terminal to perform control of deleting data instead of allowing an outside system such as a network to perform the control of deleting the data, it is possible to reduce the risk that the information leaks out to a third person when the network cannot perform the control or during a period of time between when the mobile terminal is lost and when the loss of the mobile terminal is noticed. Moreover, by saving the data to be deleted in another computer device by uploading the data onto, for example, a server on the network so that the data can be recovered, leakage of the information from the mobile terminal can be prevented without hampering the convenience for the user.

Claims

1. A mobile terminal, comprising:

a storage unit which stores predetermined data;

a setting unit which sets a delete condition for deleting the predetermined data and stores the delete condition in the storage unit; and

a deleting unit which deletes the predetermined data from the storage unit according to the delete condition.

2. The mobile terminal according to claim 1, wherein the setting unit sets time for deleting the predetermined data as the delete condition, and the deleting unit deletes the predetermined data when the time is reached.

3. The mobile terminal according to claim 1, wherein the setting unit sets, as the delete condition, time from when operation to end the use of the mobile terminal is performed, and, in the case in which operation to use the mobile terminal again is not performed before the time passes, the deleting unit deletes the predetermined data after the time passes.

4. The mobile terminal according to claim 1, wherein the setting unit sets time from when the delete condition is set, as the delete condition, and the deleting unit deletes the predetermined data after the time passes.

5. The mobile terminal according to claim 1, wherein the setting unit sets time from when the predetermined data is viewed, as the delete condition, and the deleting unit deletes the predetermined data after the time passes.

6. The mobile terminal according to claim 1, wherein,

the predetermined data is data received by the mobile terminal;

the setting unit sets time from when the predetermined data is received or viewed, as the delete condition; and

the deleting unit deletes the predetermined data after the time passes.

7. The mobile terminal according to claim 6, wherein the time is included in received data, and the setting unit sets the delete condition on the basis of the time included in the received data.

8. The mobile terminal according to claim 1, wherein the setting unit sets a base station for communicating with the mobile terminal, as the delete condition, and the deleting unit deletes the predetermined data when the mobile terminal communicates with another base station which is different from the base station.

9. The mobile terminal according to claim 1, wherein the setting unit sets, as the delete condition, time from when communication between a base station communicating with the mobile terminal and another base station different from the base station is started, and the deleting unit deletes the predetermined data after the time passes after the mobile terminal communicates with the other base station.

10. The mobile terminal according to claim 1, wherein:

the predetermined data is part of the data stored in the storage unit; and

the setting unit sets the predetermined data as the delete condition.

11. The mobile terminal according to claim 1, wherein:

the mobile terminal can communicate with a storage device which is connected to a network;

the predetermined data is uploaded to the storage device via the network and thereby stored in the storage device; and

the predetermined data can be downloaded from the storage device after the predetermined data is deleted.

12. The mobile terminal according to claim 11, wherein download of the predetermined data which is stored in the storage device is limited in accordance with the present time when download is performed.