Method and apparatus for moving contents using copy and movement control information

• US 7,895,660 B2
• Filed: 07/02/2008
• Issued: 02/22/2011
• Est. Priority Date: 03/31/2001
• Status: Expired due to Fees

• 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:
  US12/167,207
• Publication Number:
  US 20080288732A1
• Time in Patent Office: 965 Days
• Field of Search: 726/26
• 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 for controlling contents, the method comprising:

transmitting, by a first device, a copy of a content using a copying operation to a second device based on copy and movement control information;

updating, in the first device, the copy and movement control information based on the copying operation;

determining, by the first device, whether or not the content is to be moved based on the copy and movement control information, the copy and movement control information indicating whether or not the content is to be moved;

determining, by the first device, whether a communication is possible with a third device through an interface, if the determining step determines the content can be moved; and

moving, by the first device, the content to the third device based on results of the determining steps.

2. The method of claim 1, wherein the moving step moves the content from the first device to the third device, if the step of determining whether or not the content is to be moved determines that the content is to be moved.

3. The method of claim 2, further comprising:

deleting the content from the first device.

4. The method of claim 1, wherein the moving step does not move the content from the first device to the third device, if the step of determining whether or not the content is to be moved determines that the content is not to be moved.

5. The method of claim 1, wherein the copy and movement control information is represented by three bits.

6. The method of claim 1, further comprising:

receiving, by the first device, the content along with the copy and movement control information,

wherein the copy and movement control information is located at a head field associated with the content.

7. A first device for controlling contents, comprising:

an interfacing unit configured to at least one of transmit a copy of a content using a copying operation to a second device and transmit the content to a third device;

a processor configured to control the copying operation based on copy and movement control information, to update the copy and movement control information based on the copying operation, to determine whether or not a moving operation of the content to the third device is permitted based on the copy and movement control information, the copy and movement control information indicating whether or not the content can be moved, to determine whether a communication is possible with the third device through the interfacing unit, if the moving operation of the content is determined to be permitted, and to control the interfacing unit to move the content to the third device based on results of the determination.

8. The first device of claim 7, wherein the moving operation of the content is performed, if the processor determines that the content is to be moved.

9. The first device of claim 8, wherein the processor is further configured to delete the content from the first device.

10. The first device of claim 7, wherein the moving operation is not performed, if the moving operation is determined not to be permitted.

11. The first device of claim 7, wherein the copy and movement control information is represented by three bits.

12. The first device of claim 7, further comprising:

a receiving unit configured to receive the content along with the copy and movement control information,

wherein the copy and movement control information is located at a head field associated with the content.