Optical discs with controllable access times and method of the same
    45.
    发明申请
    Optical discs with controllable access times and method of the same 失效
    具有可控访问时间和方法的光盘

    公开(公告)号:US20050094500A1

    公开(公告)日:2005-05-05

    申请号:US10806123

    申请日:2004-03-23

    Abstract: The specification disclosed a method that controls the access times of an optical disc and discs of the same. The method includes the following steps. First, an optical disc drive obtains the addresses of a life flag and a medium key block (MKB) by reading a private flag of an optical disc. The life flag and the MKB are used to control the access times of the optical disc. After confirming the addresses of the life flag and the MKB, the optical disc drive obtains an optical power signal to determine the power that should be used to read the MKB. When the optical disc drive uses the appropriate reading power to access the MKB, the recognizable number of access times in the MKB data is reduced, and the medium key signal is extracted to be confirmed if it is recognizable to restore the main data.

    Abstract translation: 本说明书公开了一种控制光盘的访问时间和其光盘的方法。 该方法包括以下步骤。 首先,光盘驱动器通过读取光盘的专用标志来获得生命标记和中密钥块(MKB)的地址。 寿命标志和MKB用于控制光盘的访问时间。 在确认生命标志和MKB的地址之后,光盘驱动器获得光功率信号,以确定应该用于读取MKB的功率。 当光盘驱动器使用适当的读取功率来访问MKB时,MKB数据中的可识别的访问次数减少,并且如果可识别恢复主数据,则提取媒体密钥信号以被确认。

    System, method and apparatus for controlling the dissemination of digital works
    48.
    发明申请
    System, method and apparatus for controlling the dissemination of digital works 审中-公开
    控制数字作品传播的系统,方法和装置

    公开(公告)号:US20040193900A1

    公开(公告)日:2004-09-30

    申请号:US09810957

    申请日:2001-03-16

    Inventor: Mark Nair

    Abstract: A system, business methodology and apparatus for facilitating controlled dissemination of digital works is disclosed. An audio and video organizer, entertainment, and communication unit that plays back audio and video media content received from a central storage server. The unit relies on a smartcard, which has a personalized key that unlocks encrypted content. Using the unit, a user can purchase music or other types of media using a appropriate ordering method. The central storage server then transmits a double-encrypted, compressed audio file to the unit, where it is decrypted based on the smartcard key, and available for listening.

    Abstract translation: 披露了一种促进数字作品受控传播的系统,业务方法和装置。 用于播放从中央存储服务器接收的音频和视频媒体内容的音频和视频组织者,娱乐和通信单元。 该单元依赖于智能卡,其具有解锁加密内容的个性化密钥。 使用该单元,用户可以使用适当的排序方法购买音乐或其他类型的媒体。 中央存储服务器然后将双重加密的压缩音频文件发送到该单元,其中它基于智能卡密钥被解密并且可用于收听。

Patent Agency Ranking