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1. 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。

2. 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。

3. 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。

4. 发明授权

US08976858B2 Error resilience using out of band directory information 有权
标题翻译：使用带外目录信息的错误恢复能力
公开(公告)号：US08976858B2
公开(公告)日：2015-03-10
申请号：US11435050
申请日：2006-05-15
申请人： Thadi M. Nagaraj , Bruce Collins , Amnon Silberger , Gordon Kent Walker , Serafim S. Loukas , Vijayalakshmi R. Raveendran
发明人： Thadi M. Nagaraj , Bruce Collins , Amnon Silberger , Gordon Kent Walker , Serafim S. Loukas , Vijayalakshmi R. Raveendran
IPC分类号： H04N7/12 , H04L29/06 , H04L1/00
CPC分类号： H04L29/06027 , H04L1/0083 , H04L65/607 , H04L65/80
摘要： A method and apparatus to improve error resiliency in processing a multimedia bitstream is described. A directory of header information is generated for a multimedia bitstream. The directory information comprises packet header information associated with the multimedia bitstream. The directory information may be transmitted to a receiver along with the multimedia bitstream. A receiver of the multimedia bitstream and the directory can utilize the header information to identify and locate packets within and subsequent to erroneous data in the received bitstream. By identifying and locating packets that may otherwise be discarded, the receiver may be able to improve error recovery and decoding of the multimedia data.
摘要翻译：描述了一种在处理多媒体位流时提高错误弹性的方法和装置。为多媒体比特流生成头信息的目录。目录信息包括与多媒体比特流相关联的分组报头信息。目录信息可以与多媒体比特流一起发送到接收机。多媒体比特流和目录的接收机可以利用头信息来识别和定位在接收到的比特流中的错误数据内和之后的分组。通过识别和定位可能被丢弃的分组，接收机可能能够改善多媒体数据的错误恢复和解码。

5. 发明授权

US08345743B2 Systems and methods for channel switching 有权
标题翻译：通道切换的系统和方法
公开(公告)号：US08345743B2
公开(公告)日：2013-01-01
申请号：US11940122
申请日：2007-11-14
申请人： Fang Shi , Christopher John Bennett , Serafim S. Loukas, Jr. , Brian William Orr , Vijayalakshmi R. Raveendran , Scott T. Swazey , Amnon Silberger , Thadi M. Nagaraj , Gordon Kent Walker , David Brackman , Fang Liu , Sumeet Singh Sethi , Ramkumar Sampathkumar
发明人： Fang Shi , Christopher John Bennett , Serafim S. Loukas, Jr. , Brian William Orr , Vijayalakshmi R. Raveendran , Scott T. Swazey , Amnon Silberger , Thadi M. Nagaraj , Gordon Kent Walker , David Brackman , Fang Liu , Sumeet Singh Sethi , Ramkumar Sampathkumar
IPC分类号： H04B1/66
CPC分类号： H04N21/44016 , H04N19/107 , H04N19/187 , H04N19/31 , H04N19/61 , H04N19/68 , H04N19/70 , H04N19/89 , H04N21/23424 , H04N21/234327 , H04N21/4384 , H04N21/8451 , H04N21/8456
摘要： Techniques for video encoding and decoding channel switch frames (CSF) to enable acquisition and re/synchronization of the video stream while preserving compression efficiency is provided. Systems and methods to process multimedia data enabling channel switching are presented. The systems generate a CSF with one or more network adaptation layer (NAL) units as a random access point (RAP) frame. Back-to-back frames are transmitted which include the CSF and a non-RAP frame, each having the same frame ID number.
摘要翻译：提供了视频编码和解码通道切换帧（CSF）的技术，以实现视频流的获取和再同步，同时保持压缩效率。提出了处理能够进行通道切换的多媒体数据的系统和方法。系统产生具有一个或多个网络适配层（NAL）单元的CSF作为随机接入点（RAP）帧。发送背靠背帧，其包括CSF和非RAP帧，每个帧具有相同的帧ID号。

6. 发明申请

US20080170564A1 SYSTEMS AND METHODS FOR CHANNEL SWITCHING 有权
标题翻译：用于信道切换的系统和方法
公开(公告)号：US20080170564A1
公开(公告)日：2008-07-17
申请号：US11940122
申请日：2007-11-14
申请人： Fang Shi , Christopher John Bennett , Serafim S. Loukas , Brian William Orr , Vijayalakshmi R. Raveendran , Scott T. Swazey , Amnon Silberger , Thadi M. Nagaraj , Gordon Kent Walker , David Brackman , Fang Liu , Sumeet Singh Sethi , Ramkumar Sampathkumar
发明人： Fang Shi , Christopher John Bennett , Serafim S. Loukas , Brian William Orr , Vijayalakshmi R. Raveendran , Scott T. Swazey , Amnon Silberger , Thadi M. Nagaraj , Gordon Kent Walker , David Brackman , Fang Liu , Sumeet Singh Sethi , Ramkumar Sampathkumar
IPC分类号： H04Q11/00 , H04L12/50
CPC分类号： H04N21/44016 , H04N19/107 , H04N19/187 , H04N19/31 , H04N19/61 , H04N19/68 , H04N19/70 , H04N19/89 , H04N21/23424 , H04N21/234327 , H04N21/4384 , H04N21/8451 , H04N21/8456
摘要： Techniques for video encoding and decoding channel switch frames (CSF) to enable acquisition and re/synchronization of the video stream while preserving compression efficiency is provided. Systems and methods to process multimedia data enabling channel switching are presented. The systems generate a CSF with one or more network adaptation layer (NAL) units as a random access point (RAP) frame. Back-to-back frames are transmitted which include the CSF and a non-RAP frame, each having the same frame ID number.
摘要翻译：提供了视频编码和解码通道切换帧（CSF）的技术，以实现视频流的获取和再同步，同时保持压缩效率。提出了处理能够进行通道切换的多媒体数据的系统和方法。系统产生具有一个或多个网络适配层（NAL）单元的CSF作为随机接入点（RAP）帧。发送背靠背帧，其包括CSF和非RAP帧，每个帧具有相同的帧ID号。

7. 发明授权

US08842666B2 Methods and apparatus for packetization of content for transmission over a network 有权
标题翻译：用于通过网络传输的内容分组化的方法和装置
公开(公告)号：US08842666B2
公开(公告)日：2014-09-23
申请号：US11432005
申请日：2006-05-11
申请人： Vijayalakshmi R. Raveendran , Amnon Silberger , Bruce Collins , Dhinakar Radhakrishnan , Gordon Kent Walker , Thadi M. Nagaraj , Sajith Balraj
发明人： Vijayalakshmi R. Raveendran , Amnon Silberger , Bruce Collins , Dhinakar Radhakrishnan , Gordon Kent Walker , Thadi M. Nagaraj , Sajith Balraj
IPC分类号： H04L12/28 , H04L12/66 , H04L29/06
CPC分类号： H04L65/4084 , H04L12/66 , H04L29/06027 , H04L65/607 , H04L69/22 , H04L69/28
摘要： Methods and apparatus for packetization of content for transmission over a network. A method is provided that includes generating one or more content packets from the multimedia content, wherein the content packets are associated with a time reference, and adding a sync header to the one or more content packets to form one or more application layer packets, respectively, wherein the sync header comprises a time indicator that indicates time relative to the time reference. An apparatus includes encoding logic configured to generate one or more content packets from the multimedia content, wherein the content packets are associated with a time reference, and packetization logic configured to add a sync header to the one or more content packets to form one or more application layer packets, respectively, wherein the sync header comprises a time indicator that indicates time relative to the time reference.
摘要翻译：用于通过网络传输的内容分组化的方法和装置。提供了一种方法，其包括从多媒体内容生成一个或多个内容分组，其中所述内容分组与时间参考相关联，并且向所述一个或多个内容分组添加同步报头以分别形成一个或多个应用层分组，其中所述同步报头包括指示相对于所述时间参考的时间的时间指示符。一种装置包括：编码逻辑，被配置为从所述多媒体内容生成一个或多个内容分组，其中所述内容分组与时间参考相关联，以及分组化逻辑，被配置为向所述一个或多个内容分组添加同步报头以形成一个或多个应用层分组，其中同步报头包括指示相对于时间参考的时间的时间指示符。

8. 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。

9. 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。

10. 发明申请

US20090210706A1 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的条件访问的方法和装置
公开(公告)号：US20090210706A1
公开(公告)日：2009-08-20
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： H04L9/32
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。

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