Method and system for secure network-based distribution of content
    31.
    发明申请
    Method and system for secure network-based distribution of content 有权
    用于安全网络分发内容的方法和系统

    公开(公告)号:US20050050345A1

    公开(公告)日:2005-03-03

    申请号:US10832812

    申请日:2004-04-26

    CPC classification number: G06F21/10 G06F2221/0704

    Abstract: A method and system for network-based distribution of content are disclosed. The distribution of content is not only secure but also controlled. The security restricts access to content within media files during downloads as well as while stored at a server or client. In one embodiment, each media file is encrypted with a different, randomly generated key. The control over the distribution of the media file can serve to limit the subsequent distribution of media files from clients to other clients. In another embodiment, the control can permit media files to be shared on a limited number of different clients affiliated with the same user. The clients can vary with application but generally are computing devices that have memory storage. Often, the clients are personal computers or other computing devices that are capable of storing and presenting content to their users.

    Abstract translation: 公开了一种基于网络分发内容的方法和系统。 内容的分发不仅安全,而且受到控制。 该安全性限制了在下载期间以及在服务器或客户端存储时对媒体文件内容的访问。 在一个实施例中,每个媒体文件用不同的随机生成的密钥加密。 对媒体文件分发的控制可用于限制媒体文件从客户端到其他客户端的后续分发。 在另一个实施例中,该控件可以允许媒体文件在与相同用户相关联的有限数量的不同客户端上共享。 客户端可以根据应用而变化,但通常是具有存储器的计算设备。 通常,客户端是能够向其用户存储和呈现内容的个人计算机或其他计算设备。

    Token passing technique for media playback devices
    35.
    发明授权
    Token passing technique for media playback devices 有权
    用于媒体播放设备的令牌传递技术

    公开(公告)号:US07975312B2

    公开(公告)日:2011-07-05

    申请号:US11651339

    申请日:2007-01-08

    Abstract: A digital rights management (DRM) system for distribution of digital content such as audio or video uses a token passing scheme to enhance security of the content from unauthorized access and use, including access by unauthorized players. The token is requested from the central content or DRM server by a host device such as a user's computer, using security related information. The token is then passed to a media player associated with the host device, the token being encrypted using a key special to that particular player. Upon receipt of the token, the player transmits back to the server certain related security information confirming receipt of the token and in return receives keys for decryption of the associated digital content. In the absence of proper passing of the token, player access to the content, or further access to other content, is denied. This also allows the player to communicate directly with the server for obtaining the keys.

    Abstract translation: 用于分发诸如音频或视频的数字内容的数字版权管理(DRM)系统使用令牌传递方案来增强内容的安全性,以防止未经授权的访问和使用,包括未经授权的玩家的访问。 使用安全相关信息由主机设备(诸如用户的计算机)从中央内容或DRM服务器请求令牌。 令牌然后传递给与主机设备相关联的媒体播放器,该令牌使用该特定播放器专用的密钥进行加密。 在接收到令牌时,播放器向服务器发送确认令牌的接收的某些相关安全信息,并且作为回报接收用于解密相关数字内容的密钥。 在没有正确传递令牌的情况下,播放器访问内容或进一步访问其他内容,被拒绝。 这也允许播放器直接与服务器通信以获得密钥。

    Parental control graphical user interface
    37.
    发明申请
    Parental control graphical user interface 有权
    家长控制图形用户界面

    公开(公告)号:US20070055754A1

    公开(公告)日:2007-03-08

    申请号:US11221351

    申请日:2005-09-06

    CPC classification number: H04L63/102 G07F17/16 H04N21/4751 H04N21/47815

    Abstract: Improved graphical user interfaces suitable for restricting the availability of media items and/or podcasts are also disclosed. The graphical user interfaces are particularly useful for a system that provides purchase and distribution of media in a client-server environment.

    Abstract translation: 还公开了适于限制媒体项目和/或播客的可用性的改进的图形用户界面。 图形用户界面对于在客户端 - 服务器环境中提供媒体的购买和分发的系统特别有用。

    Persistent group of media items for a media device
    40.
    发明申请
    Persistent group of media items for a media device 有权
    媒体设备的持久性媒体项目组

    公开(公告)号:US20060156239A1

    公开(公告)日:2006-07-13

    申请号:US11097034

    申请日:2005-04-01

    Abstract: Improved techniques to utilize and manage a group of media items (or media assets) on a computing device are disclosed. The group of media items can be utilized and managed at a host computer for the host computer as well as a media device (e.g., media player) that can couple to the host computer. One popular example of a group of media items is know as a playlist, which can pertain to a group of audio tracks. One aspect pertains to providing a persistent media device playlist at a host computer. Another aspect pertains to imposing capacity limits to a playlist, such as a media device playlist. Still another aspect pertains to a graphical user interface that enables a user to trade-off storage capacity of a media device between media asset storage and data storage. Yet still another aspect pertains to a graphical user interface that assists a user with selecting media items to fill a group of media items.

    Abstract translation: 公开了在计算设备上利用和管理一组媒体项目(或媒体资产)的改进的技术。 可以在用于主计算机的主计算机以及可以耦合到主计算机的媒体设备(例如,媒体播放器)上使用和管理媒体项目组。 一组媒体项目的一个流行示例被称为播放列表,其可以涉及一组音轨。 一个方面涉及在主计算机上提供持久媒体设备播放列表。 另一方面涉及对诸如媒体设备播放列表的播放列表强加容量限制。 另一方面涉及一种图形用户界面,其使用户能够在媒体资产存储和数据存储之间权衡媒体设备的存储容量。 另一方面涉及一种图形用户界面,其帮助用户选择媒体项目来填充一组媒体项目。

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