Method and system for processing content

• US 8,291,508 B2
• Filed: 09/06/2007
• Issued: 10/16/2012
• Est. Priority Date: 09/06/2006
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Pak, Koo-yong, Cho, Sung Hyun, Park, Il gon, Jeong, Man Soo, Chung, Min Gyu
• Primary Examiner(s): LaForgia, Christian
• Application Number:
  US12/295,868
• Publication Number:
  US 20090293131A1
• Time in Patent Office: 1,867 Days
• Field of Search: 709227-229, 726/29, 705/59
• US Class Current: 726/29
• CPC Class Codes: G06F 21/1063 Personalisation

Abstract

A method and system for processing content are provided. The method of processing content includes: receiving source data from a first system; interoperable-processing the source data and generating a target data; and transmitting the target data to a second system, the first system or the second system include at least one of access control system, copy protection system and use control system. Accordingly, it is possible to easily process non-compliant content in the DRM interoperable system.

Claims

1. A computer-implemented method comprising:

receiving, at a device, content from a content source;

obtaining from at least one of the content source and an user interface of the device, information including rights of the received content and a content index indexing the received content;

performing an integrity check on the received content, in order to verify an integrity of the received content, using a security system;

determining that the received content is transmitted to an interoperable domain on the basis of a result of the integrity check indicating that the integrity of the received content is secured;

transforming the received content into a target content of a specific type suitable for a target Digital Rights Management (DRM) device that is joined to an interoperable domain based on determining the transmission to the interoperable domain;

generating a common license of the target content including the rights of the content in a predetermined format that can be used as an interoperable license within the interoperable domain, using the obtained information; and

transmitting the transformed target content and generated common license to the target DRM device,

wherein generating the common license of the target content comprises;

determining whether the content index included in the obtained information is the same as another content index of another content within the interoperable domain, and

on determining that the content index included in the contained information is the same as the another content index, requesting at least one of the content source and the user interface to transmit a new content index.

2. The method of claim 1, wherein:

the received content comprises clean type content or non-clean type content,

a clean type content comprises unencrypted or unscrambled content, and

non-clean type content comprises encrypted or scrambled content.

3. The method of claim 2, wherein, if the received content is the non-clean type content, transforming the received content into the target content of the specific type suitable for the target DRM device comprises:

obtaining a key for decrypting the content; and

decrypting the content using the obtained key, to produce a clean content version of the content.

4. The method of claim 1, further comprising:

obtaining a revocation list identifying a revoked device; and

performing a revocation check for accessing the transformed content based on the revocation list.

5. A device comprising:

an interface configured to;

receive, at a device, content from a content source;

transmit transformed target content and generated common license to a target Digital Rights Management (DRM) device; and

a processor configured to;

obtain from at least one of the content source and an user interface of the device, information including rights of the received content and a content index indexing the received content;

perform an integrity check on the received content, in order to verify an integrity of the received content, using a security system;

determine that the received content is transmitted to an interoperable domain on the basis of a result of the integrity check indicating that the integrity of the received content is secured,

transform the received content into a target content of a specific type suitable for the target DRM device that is joined to an interoperable domain based on determining the transmission to the interoperable domain, and

generate a common license of the target content including the rights of the content in a predetermined format that can be used as an interoperable license within the interoperable domain, using the obtained information,

wherein generating the common license of the target content comprises;

determining whether the content index included in the obtained information is the same as another content index of another content within the interoperable domain, and

on determining that the content index included in the contained information is the same as the another content index, requesting at least one of the content source and the user interface to transmit a new content index.

6. The device of claim 5, wherein:

the received content comprises clean type content or non-clean type content,

a clean type content comprises unencrypted or unscrambled content, and

non-clean type content comprises encrypted or scrambled content.

7. The device of claim 6, wherein, if the received content is the non-clean type content, transforming the received content into the target content of the specific type suitable for the target DRM device comprises:

obtaining a key for decrypting the content; and

decrypting the content using the obtained key, to produce a clean content version of the content.

8. The device of claim 5, wherein the processor is further configured to:

obtain a revocation list identifying a revoked device; and

perform a revocation check for accessing the transformed content based on the revocation list.

9. A system comprising:

one or more computers; and

a computer-readable medium coupled to the one or more computers having instructions stored thereon which, when executed by the one or more computers, causes the one or more computers to perform operations comprising;

receiving, at a device, content from a content source;

obtaining from at least one of the content source and an user interface of the device, information including rights of the received content and a content index indexing the received content;

performing an integrity check on the received content, in order to verify an integrity of the received content, using a security system;

determining that the received content is transmitted to an interoperable domain on the basis of a result of the integrity check indicating that the integrity of the received content is secured;

transforming the received content into a target content of a specific type suitable for a target Digital Rights Management (DRM) device that is joined to an interoperable domain based on determining the transmission to the interoperable domain;

generating a common license of the target content including the rights of the content in a predetermined format that can be used as an interoperable license within the interoperable domain, using the obtained information; and

transmitting the transformed target content and generated common license to the target DRM device,

wherein generating the common license of the target content comprises;

determining whether the content index included in the obtained information is the same as another content index of another content within the interoperable domain, and

on determining that the content index included in the contained information is the same as the another content index, requesting at least one of the content source and the user interface to transmit a new content index.

10. The system of claim 9, wherein:

the received content comprises clean type content or non-clean type content,

a clean type content comprises unencrypted or unscrambled content, and

non-clean type content comprises encrypted or scrambled content.

11. The system of claim 10, wherein, if the received content is the non-clean type content, transforming the received content into the target content of the specific type suitable for the target DRM device comprises:

obtaining a key for decrypting the content; and

decrypting the content using the obtained key, to produce a clean content version of the content.

12. The system of claim 9, wherein the operations further comprise:

obtaining a revocation list identifying a revoked device; and

performing a revocation check for accessing the transformed content based on the revocation list.