SYSTEM AND METHOD FOR PERFORMING DATA BACKUP OF DIGITAL VIDEO RECORDER

• US 20110154049A1
• Filed: 06/08/2010
• Published: 06/23/2011
• Est. Priority Date: 12/18/2009
• Status: Abandoned Application

• Current Assignee: Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: Hsieh, Ming-Chih
• Application Number:
  US12/795,835
• Publication Number:
  US 20110154049A1
• Time in Patent Office: Days
• US Class Current: 713/185
• CPC Class Codes: G06F 11/1456 Hardware arrangements for backup
• CPC Class Codes: G06F 11/1458 Management of the backup or restore process
• CPC Class Codes: G06F 21/79 in semiconductor storage media, e.g. directly-addressable memories
• CPC Class Codes: G06F 3/0619 in relation to data integrity, e.g. data losses, bit errors
• CPC Class Codes: G06F 3/0635 by changing the path, e.g. traffic rerouting, path reconfiguration
• CPC Class Codes: G06F 3/068 Hybrid storage device
• CPC Class Codes: G11B 20/00094 involving measures which result in a restriction to authorised record carriers
• CPC Class Codes: G11B 2020/10833 Copying or moving data from one record carrier to another
• CPC Class Codes: G11B 2220/61 wherein solid state memory is used for storing A/V content storing computer data in solid state memories G06F

Abstract

A system and method for performing data backup of a digital video recorder determines if a second safe mechanism key stored in a secure digital (SD) card is valid when the SD card is detected by the digital video recorder, and changes a data storage path from a first hard disk of the digital video recorder to the SD card if the safe mechanism key stored in the SD card is valid. The system and method further changes the data storage path from the SD card to a second hard disk when the second hard disk is installed, and copies backup data stored in the SD card to the second hard disk.

Claims

1. A data backup method of a digital video recorder, comprising:

determining if a second safe mechanism key stored in a secure digital (SD) card is the same as a first safe mechanism key stored in the digital video recorder when the SD card is inserted in the digital video recorder;

changing a data storage path from a first hard disk of the digital video recorder to the SD card if the second safe mechanism key stored in the SD card is the same as the first safe mechanism key stored in the digital video recorder;

changing the data storage path from the SD card to a second hard disk when the second hard disk is installed in the digital video recorder; and

copying backup data stored in the SD card to the second hard disk.

2. The method according to claim 1, wherein the safe mechanism key comprises an identification code and a cryptograph of the digital video recorder.

3. The method according to claim 1, further comprising:

storing data into the first hard disk of the digital video recorder under the condition that the SD card is not detected by the digital video recorder, or the second safe mechanism key stored in the SD card is not the same as the first safe mechanism key stored in the digital video recorder.

4. The method according to claim 1, further comprising:

recording replacement times of hot swapping hard disks after the backup data stored in the SD card are copied to the second hard disk.

5. The method according to claim 4, further comprising:

displaying a message for taking the SD card out through different lighting modes of light emitting diodes (LEDs) if the replacement times are recorded.

6. A storage medium having stored thereon instructions that, when executed by a processor of a digital video recorder, causes the processor to perform a method for performing data backup of the digital video recorder, the method comprising:

determining if a second safe mechanism key stored in a secure digital (SD) card is the same as a first safe mechanism key stored in the digital video recorder when the SD card is inserted in the digital video recorder;

changing a data storage path from a first hard disk of the digital video recorder to the SD card if the second safe mechanism key stored in the SD card is the same as the first safe mechanism key stored in the digital video recorder;

changing the data storage path from the SD card to a second hard disk when the second hard disk is installed in the digital video recorder; and

copying backup data stored in the SD card to the second hard disk.

7. The storage medium according to claim 6, wherein the safe mechanism key comprises an identification code and a cryptograph of the digital video recorder.

8. The storage medium according to claim 6, further comprising:

storing data into the first hard disk of the digital video recorder under the condition that the SD card is not detected by the digital video recorder, or the second safe mechanism key stored in the SD card is not the same as the first safe mechanism key stored in the digital video recorder.

9. The storage medium according to claim 6, further comprising:

recording replacement times of hot swapping hard disks after the backup data stored in the SD card are copied to the second hard disk.

10. The storage medium according to claim 9, further comprises:

displaying a message for taking the SD card out through different lighting modes of light emitting diodes (LEDs) if the replacement times are recorded.

11. The storage medium according to claim 6, wherein the medium is selected from the group consisting of a hard disk drive, a compact disc, a digital video disc, and a tape drive.

12. A system for performing data backup of a digital video recorder, comprising:

a detecting module operable to detect if a secure digital (SD) card is inserted in the digital video recorder;

a determining module operable to determine if a second safe mechanism key stored in the SD card is the same as a first safe mechanism key stored in the digital video recorder when the SD card is detected by the digital video recorder;

a switching module operable to change a data storage path from a first hard disk of the digital video recorder to the SD card if the second safe mechanism key stored in the SD card is the same as the first safe mechanism key stored in the digital video recorder;

the switching module further operable to change the data storage path from the SD card to a second hard disk when the second hard disk is installed in the digital video recorder; and

a storing module operable to copy backup data stored in the SD card to the second hard disk.

13. The system according to claim 12, wherein the safe mechanism key comprises an identification code and a cryptograph of the digital video recorder.

14. The system according to claim 12, wherein the storing module further operable to:

store data into the first hard disk of the digital video recorder under the condition that the SD card is not detected by the digital video recorder, or the second safe mechanism key stored in the SD card is not the same as the first safe mechanism key stored in the digital video recorder.

15. The system according to claim 12, further comprising:

a recording module operable to record replacement times of hot swapping hard disks after the backup data stored in the SD card are copied to the second hard disk.

16. The system according to claim 15, wherein the switching module further operable to:

display a message for taking the SD card out through different lighting modes of light emitting diodes (LEDs) if the replacement times are recorded.