COPY LIMITATION MANAGEMENT DEVICE AND METHOD, AND CONTENT STORAGE DEVICE

• US 20090217387A1
• Filed: 01/30/2009
• Published: 08/27/2009
• Est. Priority Date: 02/22/2008
• Status: Abandoned Application

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Abe, Takafumi, Hiroshima, Junji, Wada, Sunao, Ooya, Yasuo, KURIHARA, Shinichi
• Application Number:
  US12/363,184
• Publication Number:
  US 20090217387A1
• Time in Patent Office: Days
• US Class Current: 726/31
• CPC Class Codes: G06F 21/604 Tools and structures for managing or administering access control systems
• CPC Class Codes: G06F 21/79 in semiconductor storage media, e.g. directly-addressable memories
• 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 20/00144 involving a user identifier, e.g. a unique customer ID
• CPC Class Codes: G11B 20/00152 involving a password
• CPC Class Codes: G11B 20/00195 using a device identifier associated with the player or recorder, e.g. serial numbers of playback apparatuses or MAC addresses
• 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: G11B 20/00869 wherein the remote server can deliver the content to a receiving device

Abstract

A content storage device comprises a content storage unit which stores master content with content handling information including conditions of copy limitations added thereto, content information management units which acquire to individually manage content information related to the conditions of the copy limitations from the content handling information added to the stored content in storing the master content, a content information provision unit which reads to provide management information in response to a request, and a copy limitation processing unit which determines the conditions of the copy limitations from the management information of the content information management unit in copy requesting of the master content and instructs execution of copy processing only when the conditions are satisfied, and updates the conditions of the copy limitations in accordance with instructing execution of the copy processing.

Claims

1. A copy limitations management device which manages handling of master content with content handling information including conditions of copy limitations added thereto, comprising:

content information management module to acquire at least content information related to the conditions of the copy limitations from the content handling information added to storage content in storing the master content to manage the content information for each storage content;

content information provision module which reads to provide content information of specified content from the content information management module in response to a request; and

copy limitation processing module to determine the conditions of the copy limitations of the content information managed by the content information management module in copy requesting of the master content, disabling copying if the conditions are not satisfied, and instructing execution of copy processing if the conditions are satisfied, wherein

the content information management module updates the conditions of the copy limitations while instructing the execution of the copy processing of the copy limitation processing module.

2. The device according to claim 1, wherein

the content information management module updates the number of copyable times for each execution of the copying as the conditions of the copy limitations.

3. The device according to claim 2, wherein:

when the number of copyable times reaches an upper limit due to update of the conditions of the copy limitations,

the content information management module disables copying after this.

4. The device according to claim 2, wherein:

when the number of copyable times reaches an upper limit due to update of the conditions of the copy limitations,

the content information management module disables copying after this, and enables specifying only “

movement”

.

5. The device according to claim 1, further comprising:

content information service processing module to receive an output request of the content information by a user'"'"'s instruction input and acquiring to present the content information through the content information provision module.

6. The device according to claim 1, further comprising:

content information service processing module to receive an output request of the content information from another content storage device via a communication line, acquiring the content information through the content information provision module, and issuing the content information to a request source.

7. The device according to claim 1, further comprising:

content information service processing module to receive a content copying request on an information recording medium by a user'"'"'s instruction input or a content copying request from another content storage device via a communication line, making the content limitation processing module determine propriety of copying, and if the copy is not disabled, requiring copy issuing to the content limitation processing module by instructing a copy destination.

16. The content storage device connected, via a communication line, to the copy limitation management device according to claim 1, further comprising:

content information acquisition module to access the copy limitation management device in response to a user'"'"'s instruction input, requiring a content information output, and acquiring content information; and

presentation module to present the content information.

8. A copy limitation management method for managing handling of master content with content handling information including conditions of copy limitations added thereto, comprising:

acquiring at least content information related to the conditions of the copy limitations from the content handling information added to storage content in storing the master content to manage the content information for each storage content;

providing content information of content during the management in response to a request;

determining the conditions of the copy limitations from content information of content during the management in requesting copying of the master content, disabling copying if the conditions are not satisfied, and executing copy processing if the conditions are satisfied; and

updating the conditions of the copy limitations when the copy processing is completed.

9. The method according to claim 8, wherein

the managing of the content information updates the number of copyable times for each execution of the copying as the conditions of the copy limitations.

10. The method according to claim 9, wherein:

when the number of copyable times reaches an upper limit due to update of the conditions of the copy limitations, the managing disables copying after this.

11. The method according to claim 9, wherein:

when the number of copyable times reaches an upper limit due to update of the conditions of the copy limitations, the managing disables copying after this, and enables specifying only “

movement”

.

12. A content storage device, comprising:

content storage module to store master content with content handling information including conditions of copy limitations added thereto;

content information management module to acquire at least content information related to the conditions of the copy limitations from the content handling information added to the stored content in storing the master content;

content information provision module which reads to provide content information of specified content from the content information management module in response to a request; and

copy limitation processing module to determine the conditions of the copy limitations of the content information managed by the content information management module in copy requesting of the master content, disabling copying if the conditions are not satisfied, and instructing execution of copy processing if the conditions are satisfied, wherein

the content information management module updates the conditions of the copy limitations while instructing the execution of the copy processing of the copy limitation processing module.

13. The device according to claim 12, wherein

the content information management module updates the number of copyable times for each execution of the copying as the conditions of the copy limitations.

14. The device according to claim 13, wherein:

when the number of copyable times reaches an upper limit due to update of the conditions of the copy limitations,

the content information management module disables copying after this.

15. The device according to claim 13, wherein:

when the number of copyable times reaches an upper limit due to update of the conditions of the copy limitations,

the content information management module disables copying after this, and enables specifying only “

movement”

.