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1. 发明申请

US20060156352A1 Mixed-media service collections for multimedia platforms 有权
公开(公告)号：US20060156352A1
公开(公告)日：2006-07-13
申请号：US11013303
申请日：2004-12-15
申请人： Geoffrey Smith , Daniel Zigmond , Dustin Green , James Baldwin , Kevin Carle , Patrik Schnell , Peter Barrett
发明人： Geoffrey Smith , Daniel Zigmond , Dustin Green , James Baldwin , Kevin Carle , Patrik Schnell , Peter Barrett
IPC分类号： H04N7/173
CPC分类号： H04N21/4627 , H04N7/167 , H04N21/234327 , H04N21/235 , H04N21/4312 , H04N21/4314 , H04N21/435 , H04N21/443 , H04N21/4516 , H04N21/4532 , H04N21/454 , H04N21/4621 , H04N21/4821 , H04N21/84
摘要： A mixed-media service collection for multimedia platforms allows simultaneous access to various mixed-media services for rendering multimedia content, depending on current client conditions. In one implementation, in response to the client accessing a service collection, for example, by changing channels, only some of the mixed-media services in the service collection are simultaneously actuated based on client conditions. The client conditions may include the availability of subsystems to implement services and the client's authorization to receive services. If client conditions do not allow some services in the service collection to be actuated, then other services in the service collection are available to be actuated instead.

2. 发明申请

US20060126667A1 Accelerated channel change in rate-limited environments 有权
公开(公告)号：US20060126667A1
公开(公告)日：2006-06-15
申请号：US11010200
申请日：2004-12-10
申请人： Geoffrey Smith , James Baldwin , Michael Dodd , Peter Barrett , David Clifford , Grant Mohr , Dustin Green
发明人： Geoffrey Smith , James Baldwin , Michael Dodd , Peter Barrett , David Clifford , Grant Mohr , Dustin Green
IPC分类号： H04H1/04
CPC分类号： H04N7/17318 , H04N21/23406 , H04N21/23424 , H04N21/23805 , H04N21/2401 , H04N21/2402 , H04N21/2404 , H04N21/25833 , H04N21/26616 , H04N21/4383 , H04N21/4384 , H04N21/44004 , H04N21/44016 , H04N21/44209 , H04N21/4424 , H04N21/6375 , H04N21/6405 , H04N21/6408 , H04N21/6473 , H04N21/6582
摘要： Accelerated channel change (ACC) strategies are described for supplying a client module with media information by transitioning between a first delivery of media information provided by first delivery functionality and a second delivery of media information provided by second delivery functionality without exceeding prescribed data rate limitations. The first delivery functionality can represent server-based functionality for delivering a unicast stream of media information at a data rate (or maximum data rate) of some excess amount over the nominal rate of delivery, starting at a selected location within the media information. The second delivery functionality can represent any functionality for delivering the media information at the data rate (or maximum data rate) of the nominal rate of delivery. A join interval separates the first delivery at the excess rate and the second delivery at the nominal rate. In that period, the first delivery functionality can provide media information at a join interval data rate. The join interval data rate, if it is below the nominal data rate, will cause the client module to miss packets of media information. The client module can receive these missing packets by issuing retry requests to the first delivery functionality or to some other entity. The client module can determine the excess amount available by investigating the amount of missing information that occurs at different data rates; or the excess amount can be defined in advance.

3. 发明申请

US20050187879A1 Persistent license for stored content 审中-公开
标题翻译：存储内容持久许可
公开(公告)号：US20050187879A1
公开(公告)日：2005-08-25
申请号：US10782678
申请日：2004-02-19
申请人： Daniel Zigmond , Peter Barrett , John Grossman , Dustin Green
发明人： Daniel Zigmond , Peter Barrett , John Grossman , Dustin Green
IPC分类号： H04L9/00 , H04L9/08 , H04L9/30
CPC分类号： H04L63/0428 , H04L9/0822 , H04L9/0825 , H04L9/083 , H04L2209/603
摘要： In an implementation, a method includes forming a request by a client for communication to a licensing server. The request is for storing encrypted content by the client. A persistent license is received at the client in response to the request. The persistent license includes a key that is encrypted. The key, when decrypted, provides access to the encrypted content. The key is configured to be decrypted by the licensing server. The client however, is not configured to decrypt the key from the persistent license. The persistent license and the encrypted content are stored by the client.
摘要翻译：在实现中，一种方法包括由客户端形成用于与许可服务器进行通信的请求。该请求是由客户端存储加密的内容。在客户端响应请求，收到持久的许可证。持久许可证包括加密的密钥。解密时的密钥提供对加密内容的访问。密钥被配置为由许可服务器解密。然而，客户端未配置为从永久许可证中解密密钥。持久许可证和加密内容由客户端存储。

4. 发明申请

US20050055721A1 Media network using set-top boxes as nodes 有权
标题翻译：媒体网络使用机顶盒作为节点
公开(公告)号：US20050055721A1
公开(公告)日：2005-03-10
申请号：US10656884
申请日：2003-09-05
申请人： Daniel Zigmond , James Baldwin , Peter Barrett , Steven Wasserman
发明人： Daniel Zigmond , James Baldwin , Peter Barrett , Steven Wasserman
IPC分类号： H04N5/445 , H04N7/10 , H04N7/18
CPC分类号： H04N21/4147 , H04N5/44543 , H04N7/106 , H04N21/4122 , H04N21/43615 , H04N21/47214 , H04N21/482
摘要： Subject matter includes methods of using conventional set-top boxes that receive streaming video modulated on coaxial cable rather than over an IP-based LAN as nodes in a media network. In one implementation, an exemplary adapter is used to integrate a conventional set-top box into a media network. In one implementation, an exemplary filter is used to reserve frequencies for communications between a conventional set-top box and a hub and to prevent communications from leaving a media network. In one implementation, an exemplary content protection method provides a way of encrypting program content on the media network in a manner that a conventional set-top box can decode.
摘要翻译：主题包括使用传统机顶盒的方法，其接收在同轴电缆上调制的流视频，而不是基于IP的LAN作为媒体网络中的节点。在一个实现中，示例性适配器用于将常规机顶盒集成到媒体网络中。在一个实现中，使用示例性滤波器来预留传统机顶盒和集线器之间的通信的频率并且防止通信离开媒体网络。在一个实现中，示例性内容保护方法提供了以常规机顶盒可以解码的方式在媒体网络上加密节目内容的方式。

5. 发明申请

US20060129723A1 Retry strategies for use in a streaming environment 有权
标题翻译：重试在流媒体环境中使用的策略
公开(公告)号：US20060129723A1
公开(公告)日：2006-06-15
申请号：US11012891
申请日：2004-12-15
申请人： Dustin Green , Michael Dodd , David Clifford , Geoffrey Smith , Peter Barrett , Grant Mohr
发明人： Dustin Green , Michael Dodd , David Clifford , Geoffrey Smith , Peter Barrett , Grant Mohr
IPC分类号： G06F13/42
CPC分类号： H04L1/1877 , H04L1/1887
摘要： Strategies are described for performing retry analysis in an environment which involves the transmission of media information from a source module to a target module. In the context of the source module, the retry analysis determines whether the source module should satisfy the retry requests issued by the target module. In the context of the target module, the retry analysis determines whether the target module should generate the retry requests in the first place. Novel request reporting formats are also described. The target module performs analysis to determine what reporting format it should use to convey the retry requests to the source module.
摘要翻译：描述了在涉及将媒体信息从源模块传输到目标模块的环境中执行重试分析的策略。在源模块的上下文中，重试分析确定源模块是否应满足目标模块发出的重试请求。在目标模块的上下文中，重试分析确定目标模块是否应首先生成重试请求。还介绍了新的请求报告格式。目标模块执行分析，以确定将哪些报告格式用于将重试请求传达给源模块。

6. 发明申请

US20050190781A1 Media stream splicer 有权
标题翻译：媒体流拼接器
公开(公告)号：US20050190781A1
公开(公告)日：2005-09-01
申请号：US10789128
申请日：2004-02-27
申请人： Dustin Green , John Grossman , James Baldwin , Peter Barrett
发明人： Dustin Green , John Grossman , James Baldwin , Peter Barrett
IPC分类号： H04J3/26 , H04L29/06 , H04N5/44 , H04N5/50
CPC分类号： H04L65/605 , H04L29/06027 , H04L65/4076 , H04N5/4401 , H04N5/50 , H04N21/23424 , H04N21/26616 , H04N21/4263 , H04N21/4383 , H04N21/4384 , H04N21/44016 , H04N21/6405 , H04N21/6408
摘要： An implementation is described herein, which facilitates a fast channel change by receiving and decoding a unicast acquisition media stream that corresponds to a soon-to-be-requested target multicast media stream. It does this before requesting the target multicast media stream of the new channel. Once the transmission of the unicast stream is caught up with the multicast stream, this implementation splices from the unicast acquisition stream to the target multicast media stream. This abstract itself is not intended to limit the scope of this patent. The scope of the present invention is pointed out in the appending claims.
摘要翻译：本文描述了一种实现方式，其通过接收和解码对应于即将被要求的目标多播媒体流的单播获取媒体流来促进快速信道改变。它在请求新频道的目标多播媒体流之前执行此操作。一旦单播流的传输被多播流捕获，则该实现从单播获取流到目标多播媒体流。本摘要本身并不旨在限制本专利的范围。在所附权利要求中指出了本发明的范围。

7. 发明申请

US20060089935A1 Failover and load balancing for server clusters 审中-公开
标题翻译：服务器群集的故障切换和负载平衡
公开(公告)号：US20060089935A1
公开(公告)日：2006-04-27
申请号：US10973140
申请日：2004-10-26
申请人： David Clifford , Dominic Angelini , Dustin Green , Geoffrey Smith , Peter Barrett
发明人： David Clifford , Dominic Angelini , Dustin Green , Geoffrey Smith , Peter Barrett
IPC分类号： G06F17/30
CPC分类号： H04L67/1034 , G06F9/505 , H04L67/1002 , H04L67/1019 , H04L67/1023 , H04L69/40
摘要： Failover and load balancing in a server cluster is described. In an implementation, a method includes receiving a plurality of requests from a plurality of clients, wherein each said request is for accessing a service provided by a plurality of servers arranged in a server cluster. A partial service map is generated for each of the clients such that each of the partial service maps reference a subset of the plurality of servers.
摘要翻译：描述了服务器集群中的故障转移和负载平衡。在实现中，一种方法包括从多个客户端接收多个请求，其中每个所述请求用于访问由服务器集群中布置的多个服务器提供的服务。为每个客户端生成部分服务映射，使得每个部分服务映射引用多个服务器的子集。

8. 发明申请

US20050081246A1 Priority mechanism for distributed sending of media data 有权
标题翻译：分发发送媒体数据的优先机制
公开(公告)号：US20050081246A1
公开(公告)日：2005-04-14
申请号：US10800287
申请日：2004-03-12
申请人： Peter Barrett , James Baldwin , Dustin Green
发明人： Peter Barrett , James Baldwin , Dustin Green
IPC分类号： H04N7/173 , H04L12/413
CPC分类号： H04N21/2318 , H04N7/17336 , H04N21/26208 , H04N21/47202 , H04N21/6405 , H04N21/8456
摘要： Media data is distributed across multiple devices, and multiple schedulers and senders are installed across the multiple devices. Schedulers formulate send requests that stipulate particular media data portions and designate destination clients. Each send request is associated with a send priority. The send requests are transmitted from the multiple schedulers to the multiple senders. The senders rank respective received send requests according to their associated send priorities. Based on the ranked respective send requests and responsive to a respective send bandwidth of each sender, the senders ascertain respective threshold priorities. Each respective threshold priority corresponds to the lowest send priority of all send requests that have been accepted for sending by a respective sender. By comparing individual send priorities associated with individual send requests to respective threshold priorities, the schedulers are able to determine which send requests are selected for sending by respective senders.
摘要翻译：媒体数据分布在多个设备上，多个设备之间安装了多个调度程序和发送者。调度器制定了规定特定媒体数据部分并指定目标客户端的发送请求。每个发送请求与发送优先级相关联。发送请求从多个调度器发送到多个发送者。发送者根据其相关的发送优先级对相应的接收到的发送请求进行排序。基于排列的各个发送请求并响应于每个发送者的相应发送带宽，发送者确定相应的阈值优先级。每个相应的阈值优先级对应于已经被相应发送者发送接收的所有发送请求的最低发送优先级。通过将与各个发送请求相关联的各个发送优先级与相应的阈值优先级相比较，调度器能够确定哪些发送请求被选择用于由各个发送者发送。

9. 发明申请

US20050097213A1 Architecture for distributed sending of media data 失效
标题翻译：用于分发发送媒体数据的体系结构
公开(公告)号：US20050097213A1
公开(公告)日：2005-05-05
申请号：US10800251
申请日：2004-03-12
申请人： Peter Barrett , James Baldwin , Dustin Green
发明人： Peter Barrett , James Baldwin , Dustin Green
IPC分类号： H04N7/173 , G06F15/16
CPC分类号： H04N21/2312 , H04N7/17336 , H04N21/23103 , H04N21/2318 , H04N21/26208 , H04N21/26216 , H04N21/47202 , H04N21/632 , H04N21/6405 , H04N21/6581 , H04N21/8352 , H04N21/8456
摘要： Media data is distributed across multiple devices, and decentralized media data dissemination architecture is formed. Multiple respective senders are associated with multiple respective distributed portions of the media data. Multiple schedulers are associated with clients and are capable of scheduling the sending of media data thereto. Schedulers formulate send requests that stipulate particular media data portions and designate destination clients. These send requests are transmitted to the multiple senders in accordance with the associated respective distributed portions in conjunction with the stipulated particular media data portion of each send request. The senders are capable of sending the stipulated particular media data portions of the send requests to the designated destination clients without routing through the schedulers. In a described implementation, a sender and a scheduler are present on each device of the multiple devices.
摘要翻译：媒体数据分布在多个设备上，形成分散的媒体数据传播架构。多个相应的发送者与媒体数据的多个相应分布的部分相关联。多个调度器与客户端相关联，并且能够调度向其发送媒体数据。调度器制定了规定特定媒体数据部分并指定目标客户端的发送请求。这些发送请求结合每个发送请求的规定的特定媒体数据部分，根据关联的各个分配部分被发送到多个发送者。发送者能够将发送请求的规定的特定媒体数据部分发送到指定的目的地客户端而不通过调度器路由。在所描述的实现中，在多个设备的每个设备上存在发送者和调度器。

10. 发明申请

US20050081244A1 Fast channel change 有权
标题翻译：快速通道更改
公开(公告)号：US20050081244A1
公开(公告)日：2005-04-14
申请号：US10684138
申请日：2003-10-10
申请人： Peter Barrett , James Baldwin , Dustin Green
发明人： Peter Barrett , James Baldwin , Dustin Green
IPC分类号： H04N7/08 , G06F15/16 , H04N7/081 , H04N7/173 , G06F13/00 , H04N5/445 , H04N5/50
CPC分类号： H04L12/185 , H04N7/17336 , H04N21/23106 , H04N21/4383 , H04N21/472 , H04N21/6405 , H04N21/6408 , H04N21/6581
摘要： In an exemplary server implementation, a server is configured to retain at least one independent frame for each video channel of multiple video channels that are being distributed using multicast communications and is adapted to respond to channel change requests from clients by transmitting the retained at least one independent frame of a requested video channel to a requesting client using a unicast communication. In an exemplary method implementation, a method for fast channel changing in a multicast video distribution architecture includes: detecting a channel change request that indicates a requested channel, the requested channel corresponding to a multicast group; and transmitting a retained intra frame for the requested channel as a unicast communication.
摘要翻译：在示例性服务器实现中，服务器被配置为保留使用多播通信分发的多个视频信道的每个视频信道的至少一个独立帧，并且适于通过发送所保留的至少一个所请求的视频信道的独立帧到使用单播通信的请求客户端。在一种示例性方法实现中，一种用于多播视频分发架构中的快速信道改变的方法包括：检测指示所请求的信道的信道改变请求，所述信道对应于多播组; 以及将所请求的信道的保留帧内帧作为单播通信发送。

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