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Content replicating device, method and system as well as recording medium

A technology for duplicating equipment and recording media, applied in the field of information duplication, which can solve problems such as the lack of setting of usage rights information, and the impossibility of controlling the duplication behavior of end users, so as to achieve the full effect of copyright

Inactive Publication Date: 2012-04-18
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the content generated by duplication does not contain the information of digital rights management (DRM, Digital Right Management), the usage rights information for controlling the duplication of encrypted content is not set in the copied disc, so as long as you have valid ID information, you can copying discs for copying, the end user's copying behavior cannot be well controlled

Method used

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  • Content replicating device, method and system as well as recording medium
  • Content replicating device, method and system as well as recording medium
  • Content replicating device, method and system as well as recording medium

Examples

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Effect test

Embodiment 1

[0039] The following describes the reproduction process of the content reproduction apparatus of the present invention when the encrypted content is reproduced as a whole process. Entire processing of encrypted content means that the content duplication device of the present invention handles all encrypted content and end-user usage rights in the master disc as a whole during the duplication process, so that the encrypted content in the generated target disc is the same as the encrypted content in the master disc. The encrypted content is consistent as a whole, and the use rights of the end users in the target disk are also consistent with those in the master disk. In this case, the copy right information includes, for example, a copy right information identification, an overall processing instruction, and an overall processing number. When the copy right control unit judges that the overall processing indication is True, that is, when copying is performed in the overall contr...

Embodiment 2

[0043] Separate processing of encrypted content refers to separately copying each part of the encrypted content in the master disc, and at the same time generating the right to use the encrypted content in the target disc that can control the use of the end user. Here, the right to use includes the respective ways of use and the corresponding number of times of use. The reproduction right information includes, for example, a reproduction right information identification, an overall processing instruction, a content part number, and use information when copying is performed in a separately processed manner. When the copy right control unit judges that the overall processing instruction is False, it means that the encrypted content will be copied in a manner of separate processing. The operation of the content reproducing apparatus of the present invention when encrypted contents are reproduced in a manner of separately processing will be described below. Fig. 9(a) shows the st...

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Abstract

The invention provides a content replicating device, method and system as well as a recording medium. The content replicating device comprises an input unit, a content replicating unit, a right generating unit, an output unit and a replication right control unit, wherein the input unit reads out replication right information, using right information and encrypted contents in a motherboard; the content replicating unit replicates the encrypted contents; the right generating unit generates the using right information while the replication is carried out; the output unit writes the replicated encrypted contents and the generated using right information into a target disk; and the replication right control unit controls the replication of the encrypted contents and the generation of the using right information according to the replication right information obtained by the input unit. According to the content replicating device provided by the invention, the encrypted contents in the motherboard can be replicated, the replication process of the encrypted contents also can be effectively controlled, and modes and frequencies of using encrypted contents by a terminal user can be effectively controlled.

Description

technical field [0001] The present invention relates to the field of information duplication, in particular to a content duplication device and method and a recording medium matched with the device. Background technique [0002] With the rapid development of multimedia technology, the content of various multimedia programs is increasing, and the demand for storage space is also increasing. Therefore, large-capacity storage space has become an important development trend. Commonly used non-rewritable media such as optical discs obviously cannot meet this trend, and rewritable media such as hard disks have been more and more used in the distribution process of multimedia programs. [0003] At present, the storage space of rewritable media such as hard disks used in content distribution is divided into two parts, one part is a common storage area for storing encrypted content, and the other is a part for storing usage rights information. Tamper Resistant Module (TRM, Tamper Re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/00G11B20/10
Inventor 藤井由纪夫东嶋重树王鸿鸣
Owner HITACHI LTD
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