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1. 发明授权

US08819843B2 Methods and apparatus for conditional access of non real-time content in a distribution system 有权
标题翻译：用于分配系统中非实时内容条件访问的方法和装置
公开(公告)号：US08819843B2
公开(公告)日：2014-08-26
申请号：US12370478
申请日：2009-02-12
申请人： Prasanna Kannan , An Mei Chen , Thadi M. Nagaraj , Sajith Balraj , Jangwon Lee
发明人： Prasanna Kannan , An Mei Chen , Thadi M. Nagaraj , Sajith Balraj , Jangwon Lee
IPC分类号： G06F7/04
CPC分类号： H04L63/062 , H04L63/10 , H04N7/1675 , H04N21/26606 , H04N21/63345
摘要： Methods and apparatus for conditional access of non real-time (NRT) content in a distribution system. A method includes encrypting NRT content with a control word (CW) to generate encrypted NRT content, providing the CW to entitlement control message (ECM) generators, receiving ECMs from the ECM generators, wherein each ECM comprises a unique encryption of the CW to provide conditional access to the CW, and providing the encrypted NRT content and the ECMs for transmission over a distribution network. An apparatus includes a synchronizer configured to provide a CW to ECM generators and receive ECMs from the ECM generators, wherein each ECM comprises a unique encryption of the CW to provide conditional access to the CW, and a management module configured to encrypt the NRT content with the CW to generate encrypted NRT content and provide the encrypted NRT content and the ECMs for transmission over the distribution network.
摘要翻译：用于分发系统中非实时（NRT）内容条件访问的方法和装置。一种方法包括用控制字（CW）对NRT内容进行加密以产生加密的NRT内容，向CW授权控制消息（ECM）生成器提供CW，从ECM生成器接收ECM，其中每个ECM包括CW的唯一加密以提供对CW进行条件访问，以及提供加密的NRT内容和ECM，用于通过分发网络进行传输。一种装置，包括配置成向ECM发生器提供CW并从ECM发生器接收ECM的同步器，其中每个ECM包括CW的唯一加密以提供对CW的条件访问;以及管理模块，被配置为用 CW产生加密的NRT内容，并提供经加密的NRT内容和ECM，用于通过分发网络进行传输。

2. 发明申请

US20090185562A1 METHODS AND APPARATUS FOR AN EFFICIENT MULTICAST FILE DISTRIBUTION SYSTEM 有权
标题翻译：一种有效的多媒体文件分发系统的方法和装置
公开(公告)号：US20090185562A1
公开(公告)日：2009-07-23
申请号：US12355657
申请日：2009-01-16
申请人： Prasanna Kannan , AN MEI CHEN , Thadi M. Nagaraj
发明人： Prasanna Kannan , AN MEI CHEN , Thadi M. Nagaraj
IPC分类号： H04L12/56
CPC分类号： H04L12/1886 , H04L1/0041 , H04L1/0075
摘要： Methods and apparatus for an efficient multicast file distribution system. A method for transmitting a file over a distribution network includes encoding the file with a selected encoding scheme to form encoded packets, generating file delivery protocol (FDP) packets from the encoded packets, generating a file delivery control protocol (FDCP) packet that comprises control information associated with the FDP packets, and transmitting the FDCP packet and the FDP packets over the distribution network. A method for receiving a file over a distribution network includes receiving a FDCP packet and FDP packets, decoding the FDP packets based on the FDCP packet to generate encoded packets, and generating at least a portion of the file from the encoded packets.
摘要翻译：一种高效多播文件分发系统的方法和装置。一种用于通过分发网络发送文件的方法包括：利用所选择的编码方案对文件进行编码以形成编码分组，从编码分组生成文件传送协议（FDP）分组，生成包括控制的文件传送控制协议（FDCP）分组与FDP分组相关联的信息，以及通过分发网络发送FDCP分组和FDP分组。一种用于通过分发网络接收文件的方法包括：接收FDCP分组和FDP分组，基于所述FDCP分组对所述FDP分组进行解码以生成编码分组，以及从所述编码分组生成所述文件的至少一部分。

3. 发明授权

US08553555B2 Methods and apparatus for an efficient multicast file distribution system 有权
标题翻译：一种高效多播文件分发系统的方法和装置
公开(公告)号：US08553555B2
公开(公告)日：2013-10-08
申请号：US12355657
申请日：2009-01-16
申请人： Prasanna Kannan , An Mei Chen , Thadi M. Nagaraj
发明人： Prasanna Kannan , An Mei Chen , Thadi M. Nagaraj
IPC分类号： H04L1/00
CPC分类号： H04L12/1886 , H04L1/0041 , H04L1/0075
摘要： Methods and apparatus for an efficient multicast file distribution system. A method for transmitting a file over a distribution network includes encoding the file with a selected encoding scheme to form encoded packets, generating file delivery protocol (FDP) packets from the encoded packets, generating a file delivery control protocol (FDCP) packet that comprises control information associated with the FDP packets, and transmitting the FDCP packet and the FDP packets over the distribution network. A method for receiving a file over a distribution network includes receiving a FDCP packet and FDP packets, decoding the FDP packets based on the FDCP packet to generate encoded packets, and generating at least a portion of the file from the encoded packets.
摘要翻译：一种高效多播文件分发系统的方法和装置。一种用于通过分发网络发送文件的方法包括：利用所选择的编码方案对文件进行编码以形成编码分组，从编码分组生成文件传送协议（FDP）分组，生成包括控制的文件传送控制协议（FDCP）分组与FDP分组相关联的信息，以及通过分发网络发送FDCP分组和FDP分组。一种用于通过分发网络接收文件的方法包括：接收FDCP分组和FDP分组，基于所述FDCP分组来解码所述FDP分组以生成编码分组，以及从所述编码分组生成所述文件的至少一部分。

4. 发明授权

US08885470B2 Methods and systems for resizing multimedia content based on quality and rate information 有权
标题翻译：基于质量和速率信息调整多媒体内容大小的方法和系统
公开(公告)号：US08885470B2
公开(公告)日：2014-11-11
申请号：US13175786
申请日：2011-07-01
申请人： Vijayalakshmi R. Raveendran , Gordon Kent Walker , Binita Gupta , Phanikumar Bhamidipati , Bruce Collins , Devarshi Shah , Robert S. Daly , Sten Jorgen Dahl , Serafim S. Loukas , Bharat Ahuja , Thadi M. Nagaraj , Vinod Kaushik , Prasanna Kannan
发明人： Vijayalakshmi R. Raveendran , Gordon Kent Walker , Binita Gupta , Phanikumar Bhamidipati , Bruce Collins , Devarshi Shah , Robert S. Daly , Sten Jorgen Dahl , Serafim S. Loukas , Bharat Ahuja , Thadi M. Nagaraj , Vinod Kaushik , Prasanna Kannan
IPC分类号： H04L1/00 , H04N21/2365 , H04N19/40 , H04N19/154 , H04N21/24 , H04N19/147 , H04N19/19 , H04N21/2381 , H04N19/46 , H04N21/2343 , H04N21/845 , H04L5/00
CPC分类号： H04N19/147 , H04L5/0007 , H04L5/0044 , H04L5/0064 , H04N19/11 , H04N19/115 , H04N19/137 , H04N19/154 , H04N19/188 , H04N19/19 , H04N19/196 , H04N19/40 , H04N19/46 , H04N21/234354 , H04N21/23655 , H04N21/2381 , H04N21/2402 , H04N21/8456
摘要： In general, this disclosure describes techniques for exchanging information between a plurality of encoder modules and a multiplex module to combine segments of data from the encoder modules with an improved overall quality. In particular, the encoder modules associate their respective segments of data with quality and rate information and send at least the quality and rate information associated with the segments of data to the multiplex module. The multiplex module analyzes the quality and rate information to determine whether the segments of data that encoder modules desire to include in the current superframe fit within the available bandwidth of a transmission channel. If the multiplex module determines the plurality of segments of data do not fit within the available bandwidth, the multiplex module selects one or more of the segments to be resized based on the quality and rate information received from the encoder modules.
摘要翻译：通常，本公开描述了用于在多个编码器模块和多路复用模块之间交换信息的技术，以组合来自编码器模块的数据段与改进的总体质量。特别地，编码器模块将它们各自的数据段与质量和速率信息相关联，并将至少与数据段相关联的质量和速率信息发送到多路复用模块。多路复用模块分析质量和速率信息，以确定编码器模块希望在当前超帧中包括的数据段是否适合传输信道的可用带宽内。如果复用模块确定多个数据段不适合可用带宽，则多路复用模块基于从编码器模块接收的质量和速率信息来选择要调整大小的一个或多个段。

5. 发明申请

US20110299587A1 METHODS AND SYSTEMS FOR RESIZING MULTIMEDIA CONTENT BASED ON QUALITY AND RATE INFORMATION 有权
标题翻译：基于质量和速率信息来确定多媒体内容的方法和系统
公开(公告)号：US20110299587A1
公开(公告)日：2011-12-08
申请号：US13175786
申请日：2011-07-01
申请人： Vijayalakshmi R. RAVEENDRAN , Gordon Kent Walker , Binita Gupta , Phanikumar Bhamidipati , Bruce Collins , Devarshi Shah , Robert S. Daley , Sten Jorgen Dahl , Serafim S. Loukas, JR. , Bharat Ahuja , Thadi M. Nagaraj , Vinod Kaushik , Prasanna Kannan
发明人： Vijayalakshmi R. RAVEENDRAN , Gordon Kent Walker , Binita Gupta , Phanikumar Bhamidipati , Bruce Collins , Devarshi Shah , Robert S. Daley , Sten Jorgen Dahl , Serafim S. Loukas, JR. , Bharat Ahuja , Thadi M. Nagaraj , Vinod Kaushik , Prasanna Kannan
IPC分类号： H04N7/26
CPC分类号： H04N19/147 , H04L5/0007 , H04L5/0044 , H04L5/0064 , H04N19/11 , H04N19/115 , H04N19/137 , H04N19/154 , H04N19/188 , H04N19/19 , H04N19/196 , H04N19/40 , H04N19/46 , H04N21/234354 , H04N21/23655 , H04N21/2381 , H04N21/2402 , H04N21/8456
摘要： In general, this disclosure describes techniques for exchanging information between a plurality of encoder modules and a multiplex module to combine segments of data from the encoder modules with an improved overall quality. In particular, the encoder modules associate their respective segments of data with quality and rate information and send at least the quality and rate information associated with the segments of data to the multiplex module. The multiplex module analyzes the quality and rate information to determine whether the segments of data that encoder modules desire to include in the current superframe fit within the available bandwidth of a transmission channel. If the multiplex module determines the plurality of segments of data do not fit within the available bandwidth, the multiplex module selects one or more of the segments to be resized based on the quality and rate information received from the encoder modules.
摘要翻译：通常，本公开描述了用于在多个编码器模块和多路复用模块之间交换信息的技术，以组合来自编码器模块的数据段与改进的总体质量。特别地，编码器模块将它们各自的数据段与质量和速率信息相关联，并将至少与数据段相关联的质量和速率信息发送到多路复用模块。多路复用模块分析质量和速率信息，以确定编码器模块希望在当前超帧中包括的数据段是否适合传输信道的可用带宽内。如果复用模块确定多个数据段不适合可用带宽，则多路复用模块基于从编码器模块接收的质量和速率信息来选择要调整大小的一个或多个段。

6. 发明授权

US07974193B2 Methods and systems for resizing multimedia content based on quality and rate information 有权
标题翻译：基于质量和速率信息调整多媒体内容大小的方法和系统
公开(公告)号：US07974193B2
公开(公告)日：2011-07-05
申请号：US11700369
申请日：2007-01-30
申请人： Vijayalakshmi R. Raveendran , Gordon Kent Walker , Binita Gupta , Phanikumar Bhamidipati , Bruce Collins , Devarshi Shah , Robert S. Daley , Sten Jorgen Dahl , Serafim S. Loukas, Jr. , Bharat Ahuja , Thadi M. Nagaraj , Vinod Kaushik , Prasanna Kannan
发明人： Vijayalakshmi R. Raveendran , Gordon Kent Walker , Binita Gupta , Phanikumar Bhamidipati , Bruce Collins , Devarshi Shah , Robert S. Daley , Sten Jorgen Dahl , Serafim S. Loukas, Jr. , Bharat Ahuja , Thadi M. Nagaraj , Vinod Kaushik , Prasanna Kannan
IPC分类号： H04L1/00
CPC分类号： H04N19/147 , H04L5/0007 , H04L5/0044 , H04L5/0064 , H04N19/11 , H04N19/115 , H04N19/137 , H04N19/154 , H04N19/188 , H04N19/19 , H04N19/196 , H04N19/40 , H04N19/46 , H04N21/234354 , H04N21/23655 , H04N21/2381 , H04N21/2402 , H04N21/8456
摘要： In general, this disclosure describes techniques for exchanging information between a plurality of encoder modules and a multiplex module to combine segments of data from the encoder modules with an improved overall quality. In particular, the encoder modules associate their respective segments of data with quality and rate information and send at least the quality and rate information associated with the segments of data to the multiplex module. The multiplex module analyzes the quality and rate information to determine whether the segments of data that encoder modules desire to include in the current superframe fit within the available bandwidth of a transmission channel. If the multiplex module determines the plurality of segments of data do not fit within the available bandwidth, the multiplex module selects one or more of the segments to be resized based on the quality and rate information received from the encoder modules.
摘要翻译：通常，本公开描述了用于在多个编码器模块和多路复用模块之间交换信息的技术，以组合来自编码器模块的数据段与改进的总体质量。特别地，编码器模块将它们各自的数据段与质量和速率信息相关联，并将至少与数据段相关联的质量和速率信息发送到多路复用模块。多路复用模块分析质量和速率信息，以确定编码器模块希望在当前超帧中包括的数据段是否适合传输信道的可用带宽内。如果复用模块确定多个数据段不适合可用带宽，则多路复用模块基于从编码器模块接收的质量和速率信息来选择要调整大小的一个或多个段。

7. 发明申请

US20080108376A1 Apparatus and Methods for Communicating System State Information Change to Wireless Devices 有权
标题翻译：将系统状态信息切换到无线设备的设备和方法
公开(公告)号：US20080108376A1
公开(公告)日：2008-05-08
申请号：US11734656
申请日：2007-04-12
申请人： An Mei Chen , Prasanna Kannan
发明人： An Mei Chen , Prasanna Kannan
IPC分类号： H04Q7/20
CPC分类号： H04W48/08 , H04H40/18 , H04W8/245 , H04W68/00 , Y02D70/00
摘要： Apparatus and methods for communication system state information change to wireless devices in a content server network in a resource and power efficient manner are disclosed. In particular, a disclosed method for conveying system state information to a wireless device includes sending a primary message including first information configured to communicate a current system state to the wireless device, and then sending second information set usable by the wireless device to update system state information. By summarizing or abbreviating the first information, a receiving device can easily compare to past system states to determine whether further processing, such as processing of the second information, is needed, thereby affording the conservation of processing and power resources of a receiving device. Corresponding apparatus are also disclosed.
摘要翻译：公开了一种以资源和功率有效的方式将通信系统状态信息改变为内容服务器网络中的无线设备的装置和方法。特别地，公开的将系统状态信息传送到无线设备的方法包括发送包括配置为将当前系统状态传送给无线设备的第一信息的主消息，然后发送由无线设备可用的更新系统状态的第二信息集信息。通过总结或缩写第一信息，接收设备可以容易地与过去的系统状态进行比较，以确定是否需要进一步的处理，例如处理第二信息，从而提供对接收设备的处理和功率资源的保护。还公开了相应的装置。

8. 发明申请

US20090254632A1 METHODS AND APPARATUS FOR DELIVERING AUXILIARY DATA TO DEVICE 有权
标题翻译：用于将辅助数据传送到设备的方法和装置
公开(公告)号：US20090254632A1
公开(公告)日：2009-10-08
申请号：US12419184
申请日：2009-04-06
申请人： Prasanna Kannan , Carlos Marcelo Dias Pazos , An Mei Chen , Sajith Balraj
发明人： Prasanna Kannan , Carlos Marcelo Dias Pazos , An Mei Chen , Sajith Balraj
IPC分类号： G06F15/16
CPC分类号： G06F17/3002
摘要： Embodiments relate to systems and methods for delivering auxiliary data to a wireless or other device. Content, such as audio, video or textual content, can be hosted by a server for delivery to the device. The content can have associated resources, for example icons, barkers, intros, and outros that are associated with television programming or other media content. A metadata document can describe the set of resources or other auxiliary data associated with a service, channel or content by indicating a resource descriptor, and a URL or other associated resource locator information. The metadata document can be encoded in XML or other formats. The device can locate resources that are intended to be delivered with selected content, since links to the resources are integrated in the metadata document. From the resource descriptor, the device can also identify how a particular resource should be utilized for the service, channel or content.
摘要翻译：实施例涉及用于将辅助数据传送到无线或其他设备的系统和方法。诸如音频，视频或文本内容的内容可以由服务器托管以传送到设备。内容可以具有与电视节目或其他媒体内容相关联的相关联的资源，例如图标，标记，简介和外联。元数据文档可以通过指示资源描述符以及URL或其他相关联的资源定位符信息来描述与服务，信道或内容相关联的资源集合或其他辅助数据。元数据文档可以以XML或其他格式进行编码。设备可以定位要与所选内容一起提供的资源，因为到资源的链接被集成在元数据文档中。从资源描述符，设备还可以识别如何将特定资源用于服务，频道或内容。

9. 发明申请

US20080259911A1 Methods and Apparatus for Distributing and Acquiring Overhead Flow Data in a Multi-Frequency Network 审中-公开
标题翻译：用于在多频网络中分配和获取架空流数据的方法和装置
公开(公告)号：US20080259911A1
公开(公告)日：2008-10-23
申请号：US12051218
申请日：2008-03-19
申请人： Binita Gupta , An Mei Chen , Sajith Balraj , Prasanna Kannan
发明人： Binita Gupta , An Mei Chen , Sajith Balraj , Prasanna Kannan
IPC分类号： H04L12/66
CPC分类号： H04W72/005
摘要： Methods and apparatus for distributing and acquiring overhead flow data in a multi-frequency network. In an aspect, a method includes generating initial acquisition flows (IAFs) that describe how content multiplexes are distributed in the multi-frequency network and provide flow identifiers for overhead flows associated with the content multiplexes, and transmitting the IAFs on pre-assigned flow identifiers. Another method includes receiving IAFs that describe how content multiplexes are distributed in the multi-frequency network and specify flow identifiers for overhead flows associated with the content multiplexes, wherein the IAFs are received using pre-assigned flow identifiers, processing the IAFs to determine VM sets associated with current wide and local areas of the multi-frequency network, determining overhead flow related information associated with selected content multiplexes in the VM sets, and acquiring overhead flow data associated with the selected content multiplexes using the associated flow identifiers.
摘要翻译：在多频网络中分配和获取开销流数据的方法和装置。一方面，一种方法包括生成描述内容多路复用如何分布在多频网络中并提供与内容多路复用相关联的开销流的流标识符的初始获取流（IAF），以及在预分配的流标识符。另一种方法包括接收描述如何在多频网络中分发内容多路复用的IAF并且指定与内容多路复用相关联的开销流的流标识符，其中使用预先分配的流标识符接收IAF，处理IAF以确定VM集与所述多频网络的当前宽和局部区域相关联，确定与所述VM集合中的所选内容多路复用相关联的开销流相关信息，以及使用相关联的流标识符获取与所选择的内容多路复用相关联的开销流数据。

10. 发明授权

US08886745B2 Methods and apparatus for delivering auxiliary data to device 有权
标题翻译：将辅助数据传送到设备的方法和设备
公开(公告)号：US08886745B2
公开(公告)日：2014-11-11
申请号：US12419184
申请日：2009-04-06
申请人： Prasanna Kannan , Carlos Marcelo Dias Pazos , An Mei Chen , Sajith Balraj
发明人： Prasanna Kannan , Carlos Marcelo Dias Pazos , An Mei Chen , Sajith Balraj
IPC分类号： G06F15/16 , G06F17/30
CPC分类号： G06F17/3002
摘要： Embodiments relate to systems and methods for delivering auxiliary data to a wireless or other device. Content, such as audio, video or textual content, can be hosted by a server for delivery to the device. The content can have associated resources, for example icons, barkers, intros, and outros that are associated with television programming or other media content. A metadata document can describe the set of resources or other auxiliary data associated with a service, channel or content by indicating a resource descriptor, and a URL or other associated resource locator information. The metadata document can be encoded in XML or other formats. The device can locate resources that are intended to be delivered with selected content, since links to the resources are integrated in the metadata document. From the resource descriptor, the device can also identify how a particular resource should be utilized for the service, channel or content.
摘要翻译：实施例涉及用于将辅助数据传送到无线或其他设备的系统和方法。诸如音频，视频或文本内容的内容可以由服务器托管以传送到设备。内容可以具有与电视节目或其他媒体内容相关联的相关联的资源，例如图标，标记，简介和外联。元数据文档可以通过指示资源描述符以及URL或其他相关联的资源定位符信息来描述与服务，信道或内容相关联的资源集合或其他辅助数据。元数据文档可以以XML或其他格式进行编码。设备可以定位要与所选内容一起提供的资源，因为到资源的链接被集成在元数据文档中。从资源描述符，设备还可以识别如何将特定资源用于服务，频道或内容。

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