Method and apparatus for managing DRM rights object in low-performance storage device

• US 20070011096A1
• Filed: 06/23/2006
• Published: 01/11/2007
• Est. Priority Date: 06/24/2005
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Oh, Yun-sang, Kim, Shin-han, Jung, Kyung-im
• Application Number:
  US11/473,189
• Publication Number:
  US 20070011096A1
• Time in Patent Office: Days
• US Class Current: 705/54
• CPC Class Codes: G06F 21/1063 Personalisation
• CPC Class Codes: G06F 21/606 by securing the transmission between two devices or processes

Abstract

A method of efficiently managing a, Digital Rights Management (DRM) rights object in a low-performance storage device, which includes causing a host apparatus to divide a DRM rights object into two or more blocks each having a size proportional to an access unit of a low-performance storage device, and transmitting the divided two or more blocks to the low-performance storage device. The access unit is a unit of data reading or data storage in the low-performance storage device.

Claims

1. A method of efficiently managing a Digital Rights Management (DRM) rights object in a low-performance storage device, comprising:

causing a host apparatus to divide a DRM rights object into two or more blocks each having a size proportional to an access unit of a low-performance storage device; and

transmitting the divided two or more blocks to the low-performance storage device,

wherein the access unit is a unit of data reading or data storage in the low-performance storage device.

2. The method of claim 1, further comprising:

transmitting a message inquiring a size of the access unit to the low-performance storage device.

3. The method of claim 1, further comprising:

receiving information about a size of the unit of data storage from the low-performance storage device.

4. The method of claim 1, wherein the transmitting of the divided two or more blocks comprises:

transmitting a first block among the divided blocks to the low-performance storage device, and

receiving positional information of a second block to be stored after the first block.

5. A method of efficiently managing a DRM rights object in a low-performance storage device, comprising:

receiving two or more blocks constituting a predetermined DRM rights object from a low-performance storage device; and

combining the received two or more blocks to generate the DRM rights object,

wherein each of the blocks has a size proportional to an access unit of data reading or data storage in the low-performance storage device.

6. The method of claim 5, further comprising, before the receiving of the two or more blocks:

receiving information about a number of divided blocks stored in the low-performance storage device.

7. The method of claim 5, further comprising, before the receiving of the two or more blocks:

allocating spaces where divided blocks are to be stored.

8. The method of claim 5, wherein the combining of the received two or more blocks comprises:

sequentially combining the received two or more blocks.

9. A host apparatus, which manages a DRM rights object in a low-performance storage device, comprising:

a rights object dividing unit which divides a DRM rights object into two or more blocks each having a size proportional to an access unit of a low-performance storage device; and

a communication unit which transmits the divided two or more blocks to the low-performance storage device,

wherein the access unit is a unit of data reading or data storage in the low-performance storage device.

10. The host apparatus of claim 9, wherein the communication unit transmits a message inquiring a size of the access unit to the low-performance storage device.

11. The host apparatus of claim 9, wherein the communication unit receives information about a size of the unit of data storage from low-performance storage device.

12. The host apparatus of claim 9, wherein the communication unit transmits a first block among the divided blocks to the low-performance storage device, and receives positional information of a second block to be stored after the first block.

13. A host apparatus for managing a DRM rights object in a low-performance storage device, comprising:

a communication unit which receives two or more blocks constituting a predetermined DRM rights object from a low-performance storage device; and

a block combining unit which combines the received two or more blocks to generate the DRM rights object,

wherein each of the blocks has a size proportional to an access unit of data reading or data storage in the low-performance storage device.

14. The host apparatus of claim 13, wherein the communication unit receives information about a number of the divided blocks stored in the low-performance storage device.

15. The host apparatus of claim 13, wherein the communication unit allocates spaces where the divided blocks are to be stored.

16. The host apparatus of claim 13, wherein the block combining unit sequentially combines the received two or more blocks.