Securely aggregating content on a storage device
    21.
    发明授权
    Securely aggregating content on a storage device 有权
    在存储设备上安全地聚合内容

    公开(公告)号:US07823212B2

    公开(公告)日:2010-10-26

    申请号:US10553412

    申请日:2004-04-21

    IPC分类号: G06F21/00

    CPC分类号: G11B20/00086 G11B20/10

    摘要: An aggregation system aggregates contents recorded on a plurality of recording mediums and recording them onto another recording medium while protecting the copyrights of the contents is provided. The aggregation system includes an aggregation apparatus and a reproduction apparatus. The aggregation apparatus obtains a main content from an optical disc, obtains a sub content from a memory card, and aggregates the obtained main content and sub content and records them onto a portable medium. The reproduction apparatus obtains the main content from the optical disc, obtains reproduction control information for controlling reproduction of the main content, and reproduces the main content recorded on the optical disc based on the reproduction control information.

    摘要翻译: 聚合系统聚合记录在多个记录介质上的内容并将其记录在另一记录介质上,同时保护内容的版权。 聚合系统包括聚合装置和再现装置。 聚合装置从光盘获得主要内容,从存储卡获取子内容,并且将获得的主要内容和子内容聚合并将其记录在便携式介质上。 再现装置从光盘获得主要内容,获得用于控制主要内容的再现的再现控制信息,并且基于再现控制信息再现记录在光盘上的主要内容。

    Data converter and method thereof
    22.
    发明申请
    Data converter and method thereof 有权
    数据转换器及其方法

    公开(公告)号:US20050089161A1

    公开(公告)日:2005-04-28

    申请号:US10952746

    申请日:2004-09-30

    摘要: A data converter (1) capable of reducing a size of the total implementation in a device is a processing apparatus that performs secret converting processing predetermined to input data with 64 bits, the data converter including a finite field polynomial cubing unit (10), data integrating units (11a) to (11d), (12) and (13), a first converter (14), a second converter (15), a data splitting unit (16), and a data integrating unit (17). The finite field polynomial cubing unit (10) performs cubing, on the 32 bits data, in the polynomial residue class ring with a value in the finite field GF (28) as a coefficient and respectively outputs data with 32 bits.

    摘要翻译: 能够减少设备总体实现规模的数据转换器(1)是一种处理装置,其执行预定的64位输入数据的秘密转换处理,数据转换器包括有限域多项式立方单元(10),数据 积分单元(11a)至(11d),(12)和(13),第一转换器(14),第二转换器(15),数据分割单元(16)和数据积分单元(17) 。 有限域多项式立方单元(10)在具有有限域GF(2 8)中的值的多项式残差类环中的32位数据上执行立方,并分别输出数据 32位。

    Recording device, recording medium, and content protection system
    26.
    发明授权
    Recording device, recording medium, and content protection system 失效
    记录装置,记录介质和内容保护系统

    公开(公告)号:US07889863B2

    公开(公告)日:2011-02-15

    申请号:US11578571

    申请日:2005-03-22

    摘要: A recording/playback apparatus is capable of using pre-image-converted content in a case of transferring an image-converted content to another device, then back from transfer-destination device to the recording/playback apparatus. The recording/playback apparatus includes a storage unit that stores a first encrypted content generated by encrypting the content, a second encrypted content generated by performing an irreversible compression to convert the content, thereby obtaining a converted content, and by encrypting the converted content, and a content key for decryption of the first and second encrypted contents, a key transfer unit that writes the content key to the external recording medium, and erases the content key stored in the storage unit, and a content transfer unit that, after the content key has been erased, writes the second encrypted content to the external recording medium, and erases the second encrypted content from the storage unit.

    摘要翻译: 在将图像转换内容传送到另一设备,然后从传送目的地设备返回到记录/重放设备的情况下,记录/重放设备能够使用预先转换图像的内容。 记录/重放装置包括存储单元,其存储通过对内容进行加密而生成的第一加密内容,通过执行不可逆压缩而生成的第二加密内容来转换内容,从而获得转换的内容,并且通过加密转换的内容,以及 用于解密第一和第二加密内容的内容密钥,将内容密钥写入外部记录介质的密钥传送单元,并且擦除存储在存储单元中的内容密钥;以及内容传送单元,在内容密钥 将第二加密内容写入外部记录介质,并从存储单元擦除第二加密内容。

    Recorder/Reproducer and Content Data Protection System
    28.
    发明申请
    Recorder/Reproducer and Content Data Protection System 失效
    记录器/再现器和内容数据保护系统

    公开(公告)号:US20080239909A1

    公开(公告)日:2008-10-02

    申请号:US10593727

    申请日:2005-03-11

    IPC分类号: G11B19/04

    摘要: The recorder/reproducer (101), when moving a first content data, writes a second content data, which is obtained by re-coding the first content data recorded in a first recording medium, into a second recording medium instead of the first content data, writes one or more first partial information extracted from the first content data into the second recording medium, and makes the first content data irreproducible, using one or more first invalidated partial information having one-to-one correspondence with the extracted one or more first partial information. When restoring the first content data, it makes the irreproducible first content data reproducible, using the one or more first partial information recorded in the second recording medium.

    摘要翻译: 记录器/再现器(101)当移动第一内容数据时,将通过将记录在第一记录介质中的第一内容数据重新编码而获得的第二内容数据写入第二记录介质而不是第一内容数据 将从第一内容数据提取的一个或多个第一部分信息写入第二记录介质,并且使用与所提取的一个或多个第一内容数据一一对应的一个或多个第一无效部分信息,使第一内容数据不可再现 部分信息。 当恢复第一内容数据时,使用记录在第二记录介质中的一个或多个第一部分信息,使不可再现的第一内容数据可再现。

    Recording Device, Recording Medium, and Content Protection System
    29.
    发明申请
    Recording Device, Recording Medium, and Content Protection System 失效
    录音设备,录音媒体和内容保护系统

    公开(公告)号:US20070258587A1

    公开(公告)日:2007-11-08

    申请号:US11578571

    申请日:2005-03-22

    摘要: A recording/playback apparatus is capable of using pre-image-converted content in a case of transferring an image-converted content to another device, then back from transfer-destination device to the recording/playback apparatus. The recording/playback apparatus includes a storage unit that stores a first encrypted content generated by encrypting the content, a second encrypted content generated by performing an irreversible compression to convert the content, thereby obtaining a converted content, and by encrypting the converted content, and a content key for decryption of the first and second encrypted contents, a key transfer unit that writes the content key to the external recording medium, and erases the content key stored in the storage unit, and a content transfer unit that, after the content key has been erased, writes the second encrypted content to the external recording medium, and erases the second encrypted content from the storage unit.

    摘要翻译: 在将图像转换内容传送到另一设备,然后从传送目的地设备返回到记录/重放设备的情况下,记录/重放设备能够使用预先转换图像的内容。 记录/重放装置包括存储单元,其存储通过对内容进行加密而生成的第一加密内容,通过执行不可逆压缩而生成的第二加密内容来转换内容,从而获得转换的内容,并且通过加密转换的内容,以及 用于解密第一和第二加密内容的内容密钥,将内容密钥写入外部记录介质的密钥传送单元,并且擦除存储在存储单元中的内容密钥;以及内容传送单元,在内容密钥 已经被擦除,将第二加密内容写入外部记录介质,并从存储单元擦除第二加密内容。

    Recording/Reproduction Device And Content Protection System
    30.
    发明申请
    Recording/Reproduction Device And Content Protection System 审中-公开
    记录/再现设备和内容保护系统

    公开(公告)号:US20070283442A1

    公开(公告)日:2007-12-06

    申请号:US10587513

    申请日:2005-02-01

    IPC分类号: H04L9/00

    摘要: A recording/reproduction device 10 receives content broadcast from a content provision device 11. The recording/reproduction device 10 encrypts the received content using a device key, to generate first encrypted content. The recording/reproduction device 10 decrypts the first encrypted content to obtain the content, performs an image conversion on the obtained content to generate converted content, and encrypts the converted content using a medium key to generate second encrypted content. The recording/reproduction device 10 writes the second encrypted content, the medium key, and the device key to a portable medium 14. When the portable medium 14 is inserted in a mobile information terminal 15, the mobile information terminal 15 decrypts the second encrypted content using the medium key to obtain the converted content, and reproduces the converted content.

    摘要翻译: 记录/再现装置10从内容提供装置11接收内容广播。 记录/再现设备10使用设备密钥加密所接收的内容,以产生第一加密内容。 记录/再现设备10解密第一加密内容以获取内容,对所获得的内容执行图像转换以生成转换的内容,并且使用中密钥对转换的内容进行加密以生成第二加密内容。 记录/再现设备10将第二加密内容,媒体密钥和设备密钥写入便携式介质14。 当便携式媒体14被插入到移动信息终端15中时,移动信息终端15使用媒体密钥解密第二加密内容以获得转换的内容,并且再现转换的内容。