Apparatus and method for moving contents having a restricted number of copies between storage media

• US 7,661,144 B2
• Filed: 09/19/2005
• Issued: 02/09/2010
• Est. Priority Date: 03/31/2001
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Jeong, Jae Yoon
• Primary Examiner(s): Pich; Ponnoreay
• Application Number:
  US11/228,359
• Publication Number:
  US 20060015694A1
• Time in Patent Office: 1,604 Days
• Field of Search: 726 30- 31, 705/57
• US Class Current: 726/26
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: G11B 20/00753 wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags
• CPC Class Codes: H04N 2005/91328 the copy protection signal being a copy management signal, e.g. a copy generation management signal [CGMS]
• CPC Class Codes: H04N 5/765 Interface circuits between an apparatus for recording and another apparatus
• CPC Class Codes: H04N 5/913 for scrambling ; for copy protection

Abstract

A method of managing content, the method being performed by a device including an analyzing unit and a control unit. The method includes judging, via the analyzing unit, whether the content can be moved to an external entity based on moving control information, the moving control information being different from copy control information indicating whether the copy of the content is permitted, determining whether an authentication with the external entity is needed in order to move the content to the external entity, if the judging step judges that the content can be moved, and controlling, via the control unit, a moving operation of the content to the external entity such that the content can be moved to the external entity without the authentication if the determining step determines the authentication is not needed.

Claims

1. A method of managing content, the method being performed by a device including an analyzing unit and a control unit, the method comprising:

judging, via the analyzing unit, whether the content can be moved to an external entity based on moving control information, the moving control information being different from copy control information indicating whether or not a copy of the content is permitted;

determining, via the analyzing unit, whether a communication is possible with the external entity through an interface, if the judging step determines the content can be moved, and determining whether an authentication with the external entity is needed in order to move the content to the external entity, if the judging step judges that the content can be moved and the analyzing unit determines the communication is possible; and

controlling, via the control unit, a moving operation of the content to the external entity such that the content is moved to the external entity without the authentication if the determining step determines the authentication is not needed.

2. The method of claim 1, wherein the external entity is connected to the device through an IEEE 1394 or Universal Serial Bus.

3. The method of claim 1, wherein the controlling step comprises:

checking whether the external entity can store the content before moving the content; and

controlling the moving operation based on a result of the checking step.

4. The method of claim 3, wherein the controlling the moving operation based on the result of the checking step comprises:

controlling the moving operation such that the content is not moved to the external entity if the checking step determines the external entity can not store the content, and controlling the moving operation such that the content is moved to the external entity if the checking step determines the external entity can store the content.

5. The method of claim 1, wherein the controlling step comprises:

controlling the moving operation such that the content is moved to the external entity when the content can be stored in a storage medium of the external entity.

6. The method of claim 1, wherein the authentication is performed using a particular key value.

7. The method of claim 1, further comprising:

deleting the content stored in a storage medium of the device if the content is moved to the external entity.

8. The method of claim 1, wherein the controlling step comprises:

controlling the moving operation such that the content is moved to the external entity only when the determining step determines the authentication is successful.

9. The method of claim 1, wherein the content comprises at least one packet, and

wherein the moving control information is included in a header of the at least one packet.