Content data transmission system and content data transmission method

• US 7,827,414 B2
• Filed: 06/08/2004
• Issued: 11/02/2010
• Est. Priority Date: 06/09/2003
• Status: Expired due to Fees

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Kawakami, Takashi
• Primary Examiner(s): Vu; Kimyen
• Assistant Examiner(s): SCHWARTZ, DARREN B
• Application Number:
  US10/519,833
• Publication Number:
  US 20050273632A1
• Time in Patent Office: 2,338 Days
• Field of Search: 726/26, 713/189, 713/193, 705 57- 58, 380201-203
• US Class Current: 713/193
• 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 20/00115 wherein the record carrier stores a unique medium identifier
• CPC Class Codes: G11B 20/00181 using a content identifier, e.g. an international standard recording code [ISRC] or a digital object identifier [DOI]
• CPC Class Codes: G11B 20/10527 Audio or video recording; Data buffering arrangements G11B20/12 - G11B20/18 take precedence
• CPC Class Codes: G11B 20/1217 on discs
• CPC Class Codes: G11B 2020/10546 specifically adapted for audio data
• CPC Class Codes: G11B 2020/10833 Copying or moving data from one record carrier to another
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers
• CPC Class Codes: G11B 2220/2529 Mini-discs
• CPC Class Codes: G11B 2220/41 Flat as opposed to hierarchical combination, e.g. library of tapes or discs, CD changer, or groups of record carriers that together store one title
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/105 of operating discs

Abstract

A library of a PC is easily synchronized with recorded contents of a disc loaded into a recording and reproducing apparatus (PD). The PC has a dynamic group and a database. Contents of the dynamic group are, dynamically changed. The dynamic group is correlated with the ID of the disc on which the contents of the dynamic group have been recorded. When the CP and the PD are connected, the ID of the disc loaded into the PD is read. The database is referenced for the ID of the disc. When there is a corresponding dynamic group, the dynamic group is compared with the recorded contents of the disc. Contents that exist in the dynamic group and that do not exist on the disc are checked out to the disc. In contrast, contents that exist on the disc and that do not exist in the dynamic group are checked in to the PC. In addition, the reproduction order of contents of the dynamic group is reflected to contents of the disc. The user can synchronize the recorded contents of the disc with the library of the PC only by connecting the PC and the PD.

Claims

1. A content data transferring system for transferring content data comprising:

a first recording medium on which a plurality of content data are recorded;

a recording and reproducing apparatus configured to reproduce a recording medium identification information unique to a second recording medium and recorded on the second recording medium, to reproduce an existing reproduction control information recorded on the second recording medium identifying content data recorded on the second recording medium, and to record content data transferred from the first recording medium onto the second recording medium;

a set creating device configured to categorize the plurality of content data recorded on the first recording medium in accordance with a predetermined rule into a group of content data and correlate the recording medium identification information with the group and record the correlation, the group identifying a portion of the plurality of content data recorded on the first recording medium that satisfies the predetermined rule;

a reproduction control information creating device configured to create a new reproduction control information, for the group, based on the recording medium identification information and the correlation recorded by the set creating device of the group correlated with the recording medium identification information, the new reproduction control information identifying the content data recorded on the first recording medium that satisfy the predetermined rule and are categorized into the group; and

a content transfer controlling device configured to transfer, in response to a comparison of the existing reproduction control information with the new reproduction control information, content data from the first recording medium to the second recording medium which are categorized into the group, satisfy the predetermined rule and are not recorded on the second recording medium based on the comparison of the existing reproduction control information with the new reproduction control information.

2. The content data transferring system as set forth in claim 1,

wherein the content transfer controlling device is configured to transfer the newly created reproduction control information to the recording and reproducing apparatus to record the newly created reproduction control information onto the second recording medium to replace the existing reproduction control information with the newly created reproduction control information.

3. The content data transferring system as set forth in claim 1,

wherein the content data recorded on the first recording medium are managed in accordance with the number of permissible record times for each of content data transferred from the first recording medium to other recording mediums, and

wherein when each of content data which have not been recorded on the second recording medium is transferred thereto, the number of permissible record times for each of the content data is decremented.

4. The content data transferring system as set forth in claim 1,

wherein when content data that have not been recorded on the second recording medium are transferred thereto, the newly created reproduction control information is transmitted to the recording and reproducing apparatus so as to record the newly created reproduction control information onto the second recording medium.

5. The content data transferring system as set forth in claim 1,

wherein content data recorded on to the second recording medium, that are not indicated by the newly created reproduction control information, are deleted from the second recording medium in accordance with the newly created reproduction control information.

6. The content data transferring system as set forth in claim 5,

wherein each of the content data recorded on the first recording medium is managed in accordance with a number of permissible record times for each of the contents that are recorded from the first recording medium onto other recording mediums including the second recording medium, and

wherein the number of permissible record times for a recorded content data is incremented when the recorded content data is deleted from the second recording medium.

7. The content data transferring system as set forth in claim 1,

wherein the reproduction control information is information with which the reproduction order of content data is controlled.

8. The content data transferring system as set forth in claim 1,

wherein the second recording medium can be loaded into and unloaded from the recording and reproducing apparatus.

9. The content data transferring system as set forth in claim 8,

wherein the new reproduction control information is created in response to loading the second recording medium into the recording and reproducing apparatus.

10. A content data transferring method for transferring content data selected from a first recording medium on which a plurality of content data have been recorded to a second recording medium different from the first recording medium comprising:

reproducing a recording medium identification information unique to the second recording medium by a recording and reproducing apparatus configured to record data to the second recording medium and reproduce data from the second recording medium;

reproducing an existing reproduction control information recorded onto the second recording medium by the recording and reproducing apparatus, the existing reproduction control information identifying content data recorded on the second recording medium;

categorizing the plurality of content data recorded on the first recording medium in accordance with a predetermined rule into a group of content data;

correlating the recording medium identification information with the group and recording the correlation, the group identifying a portion of the plurality of content data recorded on the first recording medium that satisfies the predetermined rule;

creating a new reproduction control information, for the group, based on the recording medium identification information and the correlation recorded on the first recording medium, the new reproduction control information identifying the content data recorded on the first recording medium that satisfy the predetermined rule and are categorized into the group;

comparing the existing reproduction control information to the new reproduction control information; and

transferring, in response to and based on a result of the comparing, content data from the first recording medium to the second recording medium which are categorized into the group, satisfy the predetermined rule and are not recorded on the second recording medium.

11. The content data transferring method as set forth in claim 10,

wherein the newly created reproduction control information is transferred to the recording and reproducing apparatus and recorded onto the second recording medium to replace the existing reproduction control information.

12. The content data transferring method as set forth in claim 10,

wherein the content data recorded on the first recording medium are managed in accordance with the number of permissible record times for each of content data transferred from the first recording medium to other recording mediums, and

wherein when each of content data which have not recorded on the second recording medium is transferred thereto, the number of permissible record times for each of the content data is decremented.

13. The content data transferring method as set forth in claim 10,

wherein when content data that have not been recorded on the second recording medium are transferred thereto, the newly created reproduction control information is transmitted to the recording and reproducing apparatus so as to record the newly created reproduction control information onto the second recording medium.

14. The content data transferring method as set forth in claim 10,

wherein content data recorded on the second recording medium, that are not indicated by the newly created reproduction control information, are deleted from the second recording medium in accordance with the newly created reproduction control information.

15. The content data transferring method as set forth in claim 14,

wherein each of the content data recorded on the first recording medium is managed in accordance a the number of permissible record times for each of the contents that are recorded from the first recording medium onto other recording mediums including the second recording medium, and

wherein the number of permissible record times for a recorded content data is incremented when the recorded content data is deleted from the second recording medium.

16. The content data transferring method as set forth in claim 10,

wherein the reproduction control information is information with which the reproduction order of content data is controlled.

17. The content data transferring method as set forth in claim 10,

wherein the second recording medium can be loaded into and unloaded from the recording and reproducing apparatus.

18. The content data transferring method as set forth in claim 17,

wherein the new reproduction control information is created in response to loading the second recording medium into the recording and reproducing apparatus.