METHOD FOR PROTECTING CONTENT AND METHOD FOR PROCESSING INFORMATION

• US 20110208760A1
• Filed: 01/21/2008
• Published: 08/25/2011
• Est. Priority Date: 01/19/2007
• Status: Abandoned Application

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Cho, Sung Hyun, Park, Il Gon, Chung, Min Gyu, Jeong, Man Soo, Pak, Koo Yong
• Application Number:
  US12/298,913
• Publication Number:
  US 20110208760A1
• Time in Patent Office: Days
• US Class Current: 707/756
• CPC Class Codes: G06F 21/10 Protecting distributed programs or content, e.g. vending or licensing of copyrighted material protection in video systems or pay television H04N7/16 ; Digital rights management [DRM]
• CPC Class Codes: H04L 63/101 Access control lists [ACL]
• CPC Class Codes: H04N 21/2585 Generation of a revocation list, e.g. of client devices involved in piracy acts
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/43615 Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals home Audio Video Interoperability [HAVI] data switching networks H04L12/2805
• CPC Class Codes: H04N 21/4405 involving video stream decryption
• CPC Class Codes: H04N 21/4408 involving video stream encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network
• CPC Class Codes: H04N 21/4627 Rights management associated to the content security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08
• CPC Class Codes: H04N 21/8352 involving content or source identification data, e.g. Unique Material Identifier [UMID]
• CPC Class Codes: H04N 21/8355 involving usage data, e.g. number of copies or viewings allowed

Abstract

Disclosed are a method of protecting content and a method of processing information. The method of protecting content can include service related information including revocation application information of content from the outside by employing a content management and protection system, and apply or not apply a content revocation process on the content according to the revocation application information. Accordingly, whether to apply a content revocation process can be controlled according to revocation application information.

Claims

1. A computer-implemented method comprising:

receiving data indicating whether to apply revocation of content;

mapping the received data to revocation information; and

determining whether to apply a content revocation process to the content based on the revocation information.

2. The method of claim 1, wherein receiving the data indicating whether to apply revocation of content further comprises:

receiving the data over free to air broadcast signals.

3. The method of claim 1, wherein:

the received data comprises first or second values indicating that the content revocation process should not or should be applied, respectively.

4. The method of claim 3, wherein, if the received data comprises the first value, mapping the received data to revocation information further comprises:

setting a specific parameter in the revocation information to a specific value indicating that the content revocation process is not to be applied.

5. The method of claim 1, wherein a license of the content includes the revocation information.

6-22. -22. (canceled)

23. A device comprising:

an interface configured to receive data indicating whether to apply revocation of content; and

a processor configured to;

map the received data to revocation information, and

determine whether to apply a content revocation process to the content based on the revocation information.

24. The device of claim 23, wherein receiving the data indicating whether to apply revocation of content further comprises:

receiving the data over free-to-air broadcast signals.

25. The device of claim 23, wherein:

the received data comprises first or second values indicating that the content revocation process should not or should be applied, respectively.

26. The device of claim 25, wherein, if the received data comprises the first value, mapping the received data to revocation information further comprises:

setting a specific parameter in the revocation information to a specific value indicating that the content revocation process is not to be applied.

27. The device of claim 23, wherein a license of the content includes the revocation information.

28. 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, cause the one or more computers to perform operations comprising;

receiving data indicating whether to apply revocation of content,

mapping the received data to revocation information, and

determining whether to apply a content revocation process to the content based on the revocation information.

29. The system of claim 28, wherein receiving the data indicating whether to apply revocation of content further comprises:

receiving the data over free-to-air broadcast signals.

30. The system of claim 28, wherein:

the received data comprises first or second values indicating that the content revocation process should not or should be applied, respectively.

31. The system of claim 30, wherein, if the received data comprises the first value, mapping the received data to revocation information further comprises:

setting a specific parameter in the revocation information to a specific value indicating that the content revocation process is not to be applied.

32. The system of claim 28, wherein a license of the content includes the revocation information.