Method and Apparatus for Updating Data of Portable Media Player

• US 20090077139A1
• Filed: 08/22/2008
• Published: 03/19/2009
• Est. Priority Date: 09/13/2007
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Ahn, Hyun-Joo, Kwon, Moon-Sang
• Application Number:
  US12/197,107
• Publication Number:
  US 20090077139A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 16/1787 Details of non-transparently synchronising file systems
• CPC Class Codes: G06F 16/48 Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually

Abstract

A method of updating data of a portable media player (PMP) is provided. The portable media player (PMP) is recognized by a host device as a mobile storage device. A history file is generated in the PMP. Information on changes to the updated data is recorded when data of the PMP is updated to the history file.

Claims

1. A method of managing data of a portable media player (PMP) that is recognized by a host device as a mobile storage device, the method comprising:

generating a history file in the PMP; and

recording information pertaining to changes in the updated data to the history file when the data of the PMP is updated.

2. The method of claim 1, wherein the information pertaining to changes in the update data comprises at least one of file generation, file deletion, file movement, directory generation, directory deletion, and volume initialization.

3. The method of claim 1, wherein the generating the history file and the recording information pertaining to changes in the update data are performed by a file system of the host device,

wherein the history file is not accessible to an application of the host device.

4. The method of claim 1, wherein the generating the history file comprises:

initializing the history file without generating a new history file when the history file is previously included in the PMP.

5. A computer readable recording medium having embodied thereon a computer program for executing the method of claim 1.

6. An apparatus for managing data of a PMP that is recognized by a host device as a mobile storage device, comprising:

a history file generating unit generating a history file in the PMP; and

a storage controller recording information pertaining to changes in the updated data to the history file when data of the PMP is updated.

7. The apparatus of claim 6, wherein the information pertaining to changes in the update data comprises at least one of file generation, file deletion, file movement, directory generation, directory deletion, and volume initialization.

8. The apparatus of claim 6, wherein the history file generating unit and the storage controller are controlled by a file system of the host device,

wherein the history file is not accessible to an application of the host device.

9. The apparatus of claim 6, wherein when the history file is previously included in the PMP, the history file generating unit initializes the history file without generating a new history file.

10. A method of managing data in a PMP that is recognized as a mobile storage device when connected to a host device, the method comprising:

analyzing a host file generated by the host device when the PMP is separated from the host device;

updating a metadata database of the host device based on a result of the analysis; and

initializing the history file when the metadata is completely updated.

11. The method of claim 10, wherein the history file contains information on at least one of file generation, file deletion, file movement, directory generation, directory deletion, and volume initialization.

12. The method of claim 10, wherein the analyzing and the initializing are performed by a file system of the PMP, and

wherein the history file is not accessible to an application installed in the PMP.

13. A computer readable recording medium having embodied thereon a computer program for executing the method of claim 10.

14. An apparatus for managing data in a PMP that is recognized as a mobile storage device when connected to a host device, comprising:

an analyzing unit analyzing a host file generated by the host device when the PMP is separated from the host device;

an updating unit updating a metadata database of the host device based on a result of the analysis; and

an initializing unit initializing the history file when the metadata is completely updated.

15. The apparatus of claim 14, wherein the history file contains information on at least one of file generation, file deletion, file movement, directory generation, directory deletion, and volume initialization.

16. The apparatus of claim 14, wherein the analyzing unit and the initializing unit are controlled by a file system of the PMP, and wherein the history file is not accessible to an application installed in the PMP.