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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。

3. 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。

4. 发明授权

US07127655B2 Methods and apparatus to optimize delivery of multicast content using probabilistic feedback 有权
标题翻译：使用概率反馈优化多播内容传送的方法和装置
公开(公告)号：US07127655B2
公开(公告)日：2006-10-24
申请号：US10801871
申请日：2004-03-14
申请人： Ravinder Paul Chandhok , Paul E. Jacobs , An Mei Chen , Thadi M. Nagaraj , Ben A. Saidi
发明人： Ravinder Paul Chandhok , Paul E. Jacobs , An Mei Chen , Thadi M. Nagaraj , Ben A. Saidi
IPC分类号： H04L1/18 , G08C25/02
CPC分类号： H04L12/1868
摘要： Methods and apparatus to optimize delivery of multicast content using probabilistic feedback. A method is provided for transmitting data from a server to a plurality of receiving terminals. The method includes transmitting the data from the server to the plurality of receiving terminals, and generating a random response value at each receiving terminal. The method also includes comparing the response value to an acknowledgement value at each receiving terminal, and transmitting an acknowledgment signal to the server from selected receiving terminals. The selected receiving terminals are a portion of the plurality of receiving terminals where the response value has a selected relationship to the acknowledgement value.
摘要翻译：使用概率反馈优化多播内容传送的方法和装置。提供了一种从服务器向多个接收终端发送数据的方法。该方法包括将数据从服务器发送到多个接收终端，并在每个接收终端产生随机响应值。该方法还包括将响应值与每个接收终端处的确认值进行比较，以及从所选择的接收终端向服务器发送确认信号。所选择的接收终端是多个接收终端的一部分，其中响应值与确认值具有选择的关系。

5. 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。

6. 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。

7. 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。

8. 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。

9. 发明授权

US09155023B2 Apparatus and methods for communicating system state information change to wireless devices 有权
标题翻译：用于将系统状态信息传送到无线设备的装置和方法
公开(公告)号：US09155023B2
公开(公告)日：2015-10-06
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： H04W8/24 , H04W68/00 , H04W48/08 , H04H40/18
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。

10. 发明授权

US08942739B2 Methods and apparatus for communication of notifications 有权
标题翻译：用于通知通知的方法和装置
公开(公告)号：US08942739B2
公开(公告)日：2015-01-27
申请号：US11734640
申请日：2007-04-12
申请人： Prasanna Kannan , An Mei Chen , Bruce Collins
发明人： Prasanna Kannan , An Mei Chen , Bruce Collins
IPC分类号： H04W4/00
CPC分类号： H04W68/005 , H04L12/1895 , H04L51/24 , H04L51/38 , H04W4/06 , H04W68/025 , H04W72/005
摘要： Methods and apparatus for communication of notifications are disclosed. A disclosed method for communicating notifications from a server to a device includes sending a primary message including data indicating notification status information; and sending notification messages apart from the primary message addressed to specific groups of devices. Similarly, another disclosed method for obtaining notifications in a device from a server includes monitoring the primary message including current notification status information, comparing the current notification information status information with a previous notification status information to determine if a change in notification status information has occurred, and obtaining addressed notification information when a change in the notification status information has been determined. By using a primary message with abbreviated information to communicate whether changes to notification information have occurred without the need for further processing and/or addressed notification messages, system resources can be conserved. Corresponding apparatus are also disclosed.
摘要翻译：公开了通知通知的方法和装置。用于从服务器向设备传送通知的公开方法包括发送包括指示通知状态信息的数据的主消息; 以及发送除了发送到特定的设备组的主消息之外的通知消息。类似地，另一公开的用于从服务器获取设备中的通知的方法包括监视主消息，包括当前通知状态信息，将当前通知信息状态信息与先前通知状态信息进行比较，以确定是否发生了通知状态信息的改变，并且当已经确定了所述通知状态信息的改变时，获得所述寻址的通知信息。通过使用具有缩写信息的主消息来传达是否已经发生对通知信息的改变而不需要进一步处理和/或寻址通知消息，可以节省系统资源。还公开了相应的装置。

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