Data recovery method and system of mobile device

• US 7,925,634 B2
• Filed: 12/13/2006
• Issued: 04/12/2011
• Est. Priority Date: 05/17/2006
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd. (Samsung Group)
• Original Assignee: Samsung Electronics Co. Ltd. (Samsung Group)
• Inventors: Ban, Jung-Min, Chae, Suk-Woo
• Primary Examiner(s): Wong; Don
• Assistant Examiner(s): XUE, BIN
• Application Number:
  US11/637,675
• Publication Number:
  US 20070271314A1
• Time in Patent Office: 1,581 Days
• Field of Search: None
• US Class Current: 707/686
• CPC Class Codes: H04L 69/40 for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection management of faults, events, alarms or notifications in data switching networks H04L41/06

Abstract

A data recovery method and system for a mobile device which is capable of selectively recovering data deleted by a user is provided. The data recovery method of the present invention includes assigning a portion of a memory as a data recovery region, creating recovery lists, each comprising a recovery time and recovery volume, storing data deleted from the memory into the data recovery region on the basis of the recovery lists, displaying the data recovery lists when a data recovery is requested, and recovering the deleted data from the data recovery region when the a data to be recovered is selected from the recovery lists. The data recovery method of the present invention makes it possible to recover the data deleted intentionally or accidentally in the mobile device.

Claims

1. A data recovery method of a mobile device, comprising:

assigning a portion of a memory of the mobile device as a data recovery region of the mobile device reserved for recovery of data deleted by a user;

creating and storing, in the memory, recovery lists each configured with parameters comprising a recovery time comprising a duration period during which at least one item of the recovery list is recoverable, a recovery volume, and a type of data designated for recovery and comprising a list of deleted data items stored in the data recovery region for recovery in accordance with the parameters;

determining, when a data item stored in the mobile device is deleted, whether the data type of the deleted data item is designated for recovery in the recovery lists;

storing the deleted data item into the data recovery region in accordance with the parameters of the recovery lists and adding the deleted data item into one list of the recovery lists;

displaying the recovery lists in a display of the mobile device when a data recovery is requested such that the deleted data item can be selected from the one list of the recovery lists; and

recovering the deleted data item from the data recovery region when the deleted data item is selected from the one list of the recovery lists;

wherein the storing of the deleted data item comprises permanently erasing the deleted data item when the data type of the deleted data item is not designated in any of the recovery lists;

wherein the data recovered from the data recovery region is restored at a region of the memory from which the data was deleted.

2. The method of claim 1, wherein the data recovery region is assigned in a Transactional File System type-4 (TFS4) region of the memory.

3. The method of claim 2, wherein the TFS4 region comprises:

a first sector for storing operation software; and

a second sector separated from the first sector, wherein the data recovery region is assigned to the second sector.

4. The method of claim 1, wherein the creating of the recovery lists comprises initializing the data recovery region.

5. The method of claim 3, wherein the creating of the recovery lists comprises discarding data which is larger than a capability of the data recovery region in an order of the recovery time.

6. The method of claim 3, wherein the recovery lists are sorted by an order of recovery times.

7. The method of claim 3, wherein the recovery lists are sorted by orders of recovery time and data types.

8. The method of claim 3, wherein the recovery lists are sorted by an order of data types.

9. The method of claim 1, wherein the recovery time is determined in at least one of a unit of day, week, and month.

10. The method of claim 9, wherein the recovery volume is limited to a range of a capability of the data recovery region.

15. The data recovery method of claim 1, wherein the recovery time comprises a duration required for recovering at least one item of the list.

11. A data recovery system of a mobile device, comprising:

a keypad for entering key selection information related to a data recovery;

a memory of the mobile device comprising a data recovery region reserved for recovery of data deleted by a user and in which recovery lists are stored, wherein the recovery lists are each configured with parameters comprising a recovery time comprising a duration period during which at least one item of the recovery list is recoverable, a recovery volume, and a type of data designated for recovery, and comprising a list of deleted data items stored in the data recovery region for recovery in accordance with the parameters;

a controller for determining, when a data item stored in the mobile device is deleted, whether the data type of the deleted data item is designated in the recovery lists, for storing the deleted data item into the data recovery region according to the parameters of the recovery lists, for adding the deleted data item into one list of the recovery lists, and for recovering the deleted data item from the data recovery region when the deleted data item is selected from the one list of the recovery lists; and

a display for displaying the recovery lists such that the deleted data item can be selected from the one list of the recovery lists, under the control of the controller;

wherein the storing of the deleted data item comprises permanently erasing the deleted data item when the data type of the deleted data item is not designated in any of the recovery lists;

wherein the data recovered from the data recovery region is restored at a region of the memory from which the data was deleted.

12. The system of claim 11, wherein the memory comprises:

a basic region for storing codes, fonts, and parameters of initial settings; and

a file system region for managing data storages, wherein the file system region comprises the data recovery region.

13. The system of claim 12, wherein the file system region comprises an Embedded File System type-2 (EFS2) region and a Transactional File System type-4 (TFS4) region, wherein the TFS4 region comprises the data recovery region.

14. The system of claim 13, wherein the TFS4 region comprises a NAND type flash memory.