METHOD OF PLAYING SYSTEM STREAM FILES WITH DIFFERENT RECORDING FORMATS
    2.
    发明申请
    METHOD OF PLAYING SYSTEM STREAM FILES WITH DIFFERENT RECORDING FORMATS 有权
    用不同的记录格式播放系统流文件的方法

    公开(公告)号:US20160307593A1

    公开(公告)日:2016-10-20

    申请号:US15195670

    申请日:2016-06-28

    发明人: HIROSHI YAHATA

    IPC分类号: G11B20/00 H04N5/913

    摘要: In a playback method of a playback device that plays a system stream file including encrypted video information, the system stream file includes a first segment in which is repeated a first data unit that can be decrypted using a first decryption key that the playback device has and a second data unit of the same data size as the first data unit but cannot be decrypted by the first decryption key, and a second segment which can all be decrypted using a second decryption key that differs from the first decryption key. The playback method reads the system stream file, and performs conversion processing to convert the system stream file that has been read out into a post-conversion system stream, in which the second data unit in the first segment in the system stream file that has been read out is replaced with a plurality of continuous invalid packets, and outs the post-conversion system stream.

    摘要翻译: 在播放包括加密视频信息的系统流文件的重放装置的重放方法中,系统流文件包括第一段,其中重复使用第一数据单元,该第一数据单元可以使用回放设备具有的第一解密密钥和 与第一数据单元相同数据大小的第二数据单元,但不能由第一解密密钥解密;以及第二段,其可以使用与第一解密密钥不同的第二解密密钥全部被解密。 播放方法读取系统流文件,并执行转换处理以将已经读出的系统流文件转换成转换后系统流,其中已经在系统流文件中的第一段中的第二数据单元 读取被替换为多个连续的无效分组,并且转换后的系统流。

    Prevent data storage device circuitry swap
    3.
    发明授权
    Prevent data storage device circuitry swap 有权
    防止数据存储设备电路交换

    公开(公告)号:US09305590B2

    公开(公告)日:2016-04-05

    申请号:US11873136

    申请日:2007-10-16

    申请人: Michael H. Miller

    发明人: Michael H. Miller

    摘要: A device comprises a data storage media storing data content and a digital signature. At least a portion of the digital signature is encrypted on the data storage media. The device also includes a removable control circuitry including a unique key. If the unique key corresponds to the encrypted portion of the digital signature, the removable control circuitry allows access to the data content. If the unique key does not correspond to the encrypted portion of the digital signature, the removable control circuitry prevents access to the data content. Embodiments of the invention may be useful to prevent a user from accessing the data content without the original control circuitry used to write the data content. For example, embodiments of the invention may prevent a user from using a different control circuitry that would readily allow unauthorized copying and distribution of the data content.

    摘要翻译: 一种设备包括存储数据内容和数字签名的数据存储介质。 数字签名的至少一部分在数据存储介质上被加密。 该装置还包括一个包括唯一键的可移除控制电路。 如果唯一密钥对应于数字签名的加密部分,则可移动控制电路允许访问数据内容。 如果唯一密钥不对应于数字签名的加密部分,则可移除控制电路阻止对数据内容的访问。 本发明的实施例可以有助于防止用户在没有用于写入数据内容的原始控制电路的情况下访问数据内容。 例如,本发明的实施例可以防止用户使用容易允许未经授权复制和分发数据内容的不同控制电路。

    Data transfer device library and key distribution
    10.
    发明授权
    Data transfer device library and key distribution 有权
    数据传输设备库和密钥分发

    公开(公告)号:US08549297B1

    公开(公告)日:2013-10-01

    申请号:US11494294

    申请日:2006-07-26

    IPC分类号: G06F21/00

    摘要: A method of distributing a key to encrypt data for storing on a removable data storage item in a data transfer device library, the library comprising a controller having a key associated therewith and being connected to a plurality of data transfer devices each being operable to transfer data to a removable data storage item and having a key store, the method comprising: providing the key for the library to the controller; the controller providing the key to the key store of each data transfer device connected to the controller. A data transfer device library is also disclosed.

    摘要翻译: 一种分发密钥来加密数据以存储在数据传输设备库中的可移动数据存储项目上的方法,该库包括具有与之相关联的密钥并连接到多个数据传输设备的控制器,每个数据传输设备可操作以传送数据 涉及可移动数据存储项目并具有密钥存储器,所述方法包括:向所述控制器提供所述库的密钥; 控制器为连接到控制器的每个数据传输设备的密钥存储器提供密钥。 还公开了一种数据传输设备库。