Proximity detection employed in connection with rights management system or the like
    4.
    发明申请
    Proximity detection employed in connection with rights management system or the like 有权
    与权利管理系统等有关的接近检测

    公开(公告)号:US20050262022A1

    公开(公告)日:2005-11-24

    申请号:US11139951

    申请日:2005-05-27

    CPC分类号: G06F21/10 G06F2221/2111

    摘要: A sink sends a registration request to a source and the source validates same, and the source sends a registration response including a secret to the sink. The source then sends a proximity message including a nonce to the sink and concurrently notes a start time. The sink employs the secret and the nonce to generate a proximity value and sends same to the sources. The source receives the proximity value and concurrently notes an end time, verifies the proximity value based on the secret and the nonce, calculates from the noted start and end times an elapsed time, compares the elapsed time to a predetermined threshold value, decides from the comparison whether the sink satisfies the proximity requirement, and registers the sink as being able to access content from such source if the sink satisfies the proximity requirement.

    摘要翻译: 一个宿发送一个注册请求到一个源,并且该源验证相同,并且该源向该宿发送一个包括秘密的注册响应。 然后,源向接收器发送包括随机数的接近消息,同时注释开始时间。 宿使用秘密和随机数生成邻近值,并将其发送到源。 源接收邻近值并且同时记录结束时间,基于秘密和随机数验证接近值,从所记录的开始和结束时间计算经过时间,将经过的时间与预定阈值进行比较,从 比较宿是否满足接近要求,并且如果宿满足接近要求,则将宿注册为能够从这样的源访问内容。

    System and method for embedding a streaming media format header within a session description message
    6.
    发明授权
    System and method for embedding a streaming media format header within a session description message 有权
    用于将会话描述消息中的流媒体格式头部嵌入的系统和方法

    公开(公告)号:US07451229B2

    公开(公告)日:2008-11-11

    申请号:US10178705

    申请日:2002-06-24

    IPC分类号: G06F15/16

    摘要: A system and method for embedding a streaming media format header within a session description message. The streaming media format header is encapsulated within a session description message as a header attribute. The streaming media format header describes complex relationships between available media streams. The session description message also includes a list of content description attributes storing metadata about the media streams. A media description field in the session description message stores a stream attribute identifying a media stream associated with the media description field.

    摘要翻译: 一种在会话描述消息内嵌入流媒体格式报头的系统和方法。 流媒体格式头被封装在会话描述消息中作为头属性。 流媒体格式头描述了可用媒体流之间的复杂关系。 会话描述消息还包括存储关于媒体流的元数据的内容描述属性的列表。 会话描述消息中的媒体描述字段存储标识与媒体描述字段相关联的媒体流的流属性。

    Delivering policy updates for protected content
    7.
    发明申请
    Delivering policy updates for protected content 有权
    为受保护的内容提供策略更新

    公开(公告)号:US20070014413A1

    公开(公告)日:2007-01-18

    申请号:US11179206

    申请日:2005-07-12

    IPC分类号: H04L9/00

    摘要: Various embodiments permit policy updates, such as DRM policy updates, to be delivered and updated for a given piece of protected content. In at least some embodiments, various protocols can be extended to permit policy updates to be represented and carried by the protocol. In one embodiment, Hypertext Transport Protocol or HTTP is utilized to carry the policy updates. In another embodiment, Real Time Streaming Protocol or RTSP is used to carry policy updates.

    摘要翻译: 各种实施例允许针对给定的受保护内容片段进行策略更新(如DRM策略更新)被传递和更新。 在至少一些实施例中,可以扩展各种协议以允许由协议来表示和携带策略更新。 在一个实施例中,使用超文本传输​​协议或HTTP来承载策略更新。 在另一实施例中,实时流协议或RTSP用于携带策略更新。

    Carrying protected content using a control protocol for streaming and a transport protocol
    8.
    发明申请
    Carrying protected content using a control protocol for streaming and a transport protocol 有权
    使用用于流传输和传输协议的控制协议来承载受保护的内容

    公开(公告)号:US20070011344A1

    公开(公告)日:2007-01-11

    申请号:US11176058

    申请日:2005-07-07

    IPC分类号: G06F15/16

    摘要: Various embodiments utilize methods of protecting content, such as Digital Rights Management (DRM), to enable secure playback of content on machines and devices within a local network, such as a home media network. In at least some embodiments, messages and content are delivered using, respectively, a control protocol for streaming and a transport protocol. In at least some embodiments, the control protocol for streaming is Real Time Streaming Protocol (RTSP), and the transport protocol is Real Time Transport Protocol (RTP).

    摘要翻译: 各种实施例利用保护诸如数字版权管理(DRM)的内容的方法来实现本地网络(例如家庭媒体网络)内的机器和设备上的内容的安全回放。 在至少一些实施例中,消息和内容分别使用用于流传输和传输协议的控制协议来传送。 在至少一些实施例中,流控制协议是实时流协议(RTSP),传输协议是实时传输协议(RTP)。