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    • 31. 发明授权
    • Software conditional access system for a media delivery network
    • 用于媒体传送网络的软件条件访问系统
    • US08352372B1
    • 2013-01-08
    • US09963779
    • 2001-09-26
    • Scott SwixP. Thomas WatsonRandy S. Zimler
    • Scott SwixP. Thomas WatsonRandy S. Zimler
    • G06F17/00
    • H04N21/26613H04N21/25816H04N21/42676H04N21/42684H04N21/4405H04N21/63345H04N21/6547
    • A software conditional access system (CAS) for media services provided to a Media Distribution Device, such as a set top box (STB), is disclosed. The STB may be connected to a Media Delivery Service Provider via a broadband connection. Over the broadband connection, a CAS application may be downloaded to the STB, maintained and dynamically updated. Because the CAS is implemented by software on the STB, it is inexpensive to install, maintain and update. When a user desires to purchase media services through the STB, a request, with identifying information, is sent to the Media Delivery Service Provider via the broadband connection. The service provider cross-references the identifying information with a user's account to determine whether to allow the user to view the media service requested. If the service provider determines to allow the user to view the media service, the user's account (typically maintained by the service provider) is charged and a key is downloaded via the broadband connection to the STB. The key allows the user to view the requested media service to be presented for user viewing, hearing or other use. After the requested media service ends, after a predetermined amount of time, etc., the CAS application may delete the key.
    • 公开了一种提供给诸如机顶盒(STB)等媒体分发设备的媒体服务的软件条件访问系统(CAS)。 STB可以经由宽带连接连接到媒体传送服务提供商。 通过宽带连接,可以将CAS应用程序下载到STB,维护和动态更新。 由于CAS由STB上的软件实现,因此安装,维护和更新成本低廉。 当用户希望通过STB购买媒体服务时,带有识别信息的请求将通过宽带连接发送到媒体传送服务提供商。 服务提供商用用户帐户交叉引用识别信息,以确定是否允许用户查看请求的媒体服务。 如果服务提供商确定允许用户查看媒体服务,则用户的帐户(通常由服务提供商维护)被收费,并且通过宽带连接将密钥下载到STB。 密钥允许用户查看要呈现给用户观看,听觉或其他用途的所请求的媒体服务。 在所请求的媒体服务结束之后,在预定的时间等之后,CAS应用可以删除密钥。
    • 39. 发明申请
    • SYSTEM AND METHOD FOR A DIGITAL TV CONVERTER WITH IPTV CAPABILITIES
    • 具有IPTV能力的数字电视转换器的系统和方法
    • US20110138434A1
    • 2011-06-09
    • US12634448
    • 2009-12-09
    • John M. Ulm
    • John M. Ulm
    • H04N7/173
    • H04N21/42676H04N21/238H04N21/2383H04N21/437H04N21/6332H04N21/6377H04N21/64322
    • A video content system and method that includes a video server connected to a public communication network and a video content network, and a computing device connected to the video content network and a video display device. The computing device establishes a communication channel between the computing device and the video server. The computing device receives a digital video stream on the communication channel, where the digital video stream includes video data and message data, and the message data includes at least one request to perform a service. The computing device performs the service and sends data on the communication channel, where the data is a response to each request to perform the service. The computing device processes the video data to prepare it for transmission to the video display device.
    • 一种视频内容系统和方法,包括连接到公共通信网络和视频内容网络的视频服务器,以及连接到视频内容网络和视频显示设备的计算设备。 计算设备在计算设备和视频服务器之间建立通信信道。 计算设备在通信信道上接收数字视频流,其中数字视频流包括视频数据和消息数据,并且消息数据包括执行服务的至少一个请求。 计算设备执行服务并在通信信道上发送数据,其中数据是对每个请求执行服务的响应。 计算设备处理视频数据以准备传输到视频显示设备。