公开(公告)号：US08634552B2

公开(公告)日：2014-01-21

申请号：US12576784

申请日：2009-10-09

申请人： David F. Pare ,  David L. Biderman ,  Stephen Loomis ,  Scott K. Brown ,  Michael Wise ,  David Wexelblat ,  Conor P. Cahill ,  David S. Bill

发明人： David F. Pare ,  David L. Biderman ,  Stephen Loomis ,  Scott K. Brown ,  Michael Wise ,  David Wexelblat ,  Conor P. Cahill ,  David S. Bill

IPC分类号： H04K1/04 ,  H04L9/00 ,  H04N7/169

CPC分类号： H04L65/602 ,  H04L9/0637 ,  H04L9/065 ,  H04L9/08 ,  H04L9/0844 ,  H04L9/12 ,  H04L67/2842 ,  H04L67/32

摘要： An initialization vector (IV) is employed to decrypt a block of a stream that has been encrypted with Cypher Block Chaining (CBC) encryption, without requiring decryption of previous blocks within the stream. For example, a listener who accesses a distribution point to retrieve encrypted content authenticates himself to an application server that regulates access to encrypted content on the distribution point, and responsively receives a key. The listener then requests access to a reference point within the encrypted content stream somewhere after its beginning (e.g., using preview clips). The distribution point relates the reference point to a corresponding block of the encrypted stream, and identifies an IV previously used for encryption of that block. The distribution point provides the associated encrypted block of content and the IV to the listener to enable mid-stream rendering of the encrypted content, without requiring the listener to decrypt previous blocks within the encrypted stream.

摘要翻译： 使用初始化向量（IV）来解密已经使用Cypher块链接（CBC）加密加密的流的块，而不需要解析流内的先前块。 例如，访问分发点以检索加密内容的监听者向调配对分发点上的加密内容的访问的应用服务器认证自身，并且响应地接收密钥。 然后，收听者在其开始之后的某处（例如，使用预览剪辑）请求访问加密内容流中的参考点。 分配点将参考点与加密流的相应块相关联，并且识别先前用于该块的加密的IV。 分发点向收听者提供相关的加密内容块和IV，以允许加密内容的中间流呈现，而不需要收听者解密加密流中的先前块。

公开(公告)号：US07602908B2

公开(公告)日：2009-10-13

申请号：US11019124

申请日：2004-12-22

申请人： David F Pare ,  David L. Biderman ,  Stephen Loomis ,  Scott K. Brown ,  Michael Wise ,  David Wexelblat ,  Conor P. Cahill ,  David S. Bill

发明人： David F Pare ,  David L. Biderman ,  Stephen Loomis ,  Scott K. Brown ,  Michael Wise ,  David Wexelblat ,  Conor P. Cahill ,  David S. Bill

IPC分类号： H04K1/04 ,  H04N7/00 ,  H04N5/913 ,  H04N7/167 ,  H04L9/18

CPC分类号： H04L65/602 ,  H04L9/0637 ,  H04L9/065 ,  H04L9/08 ,  H04L9/0844 ,  H04L9/12 ,  H04L67/2842 ,  H04L67/32

摘要： An initialization vector (IV) is employed to decrypt a block of a stream that has been encrypted with Cypher Block Chaining (CBC) encryption, without requiring decryption of previous blocks within the stream. For example, a listener who accesses a distribution point to retrieve encrypted content authenticates himself to an application server that regulates access to encrypted content on the distribution point, and responsively receives a key. The listener then requests access to a reference point within the encrypted content stream somewhere after its beginning (e.g., using preview clips). The distribution point relates the reference point to a corresponding block of the encrypted stream, and identifies an IV previously used for encryption of that block. The distribution point provides the associated encrypted block of content and the IV to the listener to enable mid-stream rendering of the encrypted content, without requiring the listener to decrypt previous blocks within the encrypted stream.

摘要翻译： 使用初始化向量（IV）来解密已经使用Cypher块链接（CBC）加密加密的流的块，而不需要解析流内的先前块。 例如，访问分发点以检索加密内容的监听者向调配对分发点上的加密内容的访问的应用服务器认证自身，并且响应地接收密钥。 然后，收听者在其开始之后的某处（例如，使用预览剪辑）请求访问加密内容流中的参考点。 分配点将参考点与加密流的相应块相关联，并且识别先前用于该块的加密的IV。 分发点向收听者提供相关的加密内容块和IV，以允许加密内容的中间流呈现，而不需要收听者解密加密流中的先前块。

公开(公告)号：US09071655B2

公开(公告)日：2015-06-30

申请号：US13615375

申请日：2012-09-13

申请人： Scott K. Brown ,  Keith Peters ,  David L. Biderman

发明人： Scott K. Brown ,  Keith Peters ,  David L. Biderman

IPC分类号： G06F15/16 ,  H04L29/08

CPC分类号： H04L67/10 ,  H04L43/0888 ,  H04L65/60 ,  H04L67/322

摘要： Access to content may be enabled by receiving an instruction indicating a client request to access content, accessing a list of content sources capable of rendering the content for which access is requested by the client, determining a performance metric for at least two of the content sources, and selecting among the content sources based on the performance metric to identify a content source to be accessed by the client.

摘要翻译： 可以通过接收指示访问内容的客户端请求的指令来访问内容，访问能够呈现由客户端请求访问的内容的内容源的列表，确定至少两个内容源的性能度量 ，以及基于所述性能度量在所述内容源中进行选择以识别要被所述客户端访问的内容源。

公开(公告)号：US08284931B2

公开(公告)日：2012-10-09

申请号：US12786129

申请日：2010-05-24

申请人： David F. Pare ,  David L. Biderman ,  Stephen E. Loomis ,  Scott K. Brown ,  Michael Wise ,  David Wexelblat ,  Conor P. Cahill ,  David S. Bill

发明人： David F. Pare ,  David L. Biderman ,  Stephen E. Loomis ,  Scott K. Brown ,  Michael Wise ,  David Wexelblat ,  Conor P. Cahill ,  David S. Bill

IPC分类号： H04K1/00 ,  H04L9/00 ,  H04N7/167

CPC分类号： H04L65/602 ,  H04L9/0637 ,  H04L9/065 ,  H04L9/08 ,  H04L9/0844 ,  H04L9/12 ,  H04L67/2842 ,  H04L67/32

摘要： An initialization vector (IV) is employed to decrypt a block of a stream that has been encrypted with Cypher Block Chaining (CBC) encryption, without requiring decryption of previous blocks within the stream. For example, a listener who accesses a distribution point to retrieve encrypted content authenticates himself to an application server that regulates access to encrypted content on the distribution point, and responsively receives a key. The listener then requests access to a reference point within the encrypted content stream somewhere after its beginning (e.g., using preview clips). The distribution point relates the reference point to a corresponding block of the encrypted stream, and identifies an IV previously used for encryption of that block. The distribution point provides the associated encrypted block of content and the IV to the listener to enable mid-stream rendering of the encrypted content, without requiring the listener to decrypt previous blocks within the encrypted stream.

摘要翻译： 使用初始化向量（IV）来解密已经使用Cypher块链接（CBC）加密加密的流的块，而不需要解析流内的先前块。 例如，访问分发点以检索加密内容的监听者向调配对分发点上的加密内容的访问的应用服务器认证自身，并且响应地接收密钥。 然后，收听者在其开始之后的某处（例如，使用预览剪辑）请求访问加密内容流中的参考点。 分配点将参考点与加密流的相应块相关联，并且识别先前用于该块的加密的IV。 分发点向收听者提供相关的加密内容块和IV，以允许加密内容的中间流呈现，而不需要收听者解密加密流中的先前块。

公开(公告)号：US08271646B2

公开(公告)日：2012-09-18

申请号：US12729044

申请日：2010-03-22

申请人： Scott K. Brown ,  David L. Biderman

发明人： Scott K. Brown ,  David L. Biderman

IPC分类号： G06F13/00

CPC分类号： H04L41/0803 ,  H04L41/0806 ,  H04L41/0813 ,  H04L41/0816 ,  H04L41/0853 ,  H04L41/0896 ,  H04L67/14 ,  H04L67/22

摘要： A client may be configured to access a network by identifying a network bandwidth configuration setting to be used by the client in accessing a networked content source, enabling the client to access the content source using the network bandwidth configuration setting, monitoring client access to the content source, comparing client access metrics to metrics associated with the network bandwidth configuration setting, determining, based on the comparison, whether to adjust the network bandwidth configuration settings for the client, and adjusting the network bandwidth configuration setting if appropriate.

摘要翻译： 客户端可以被配置为通过识别客户端在访问网络内容源时使用的网络带宽配置设置来访问网络，使得客户端能够使用网络带宽配置设置访问内容源，监视客户端对内容的访问 来源，将客户端访问度量与与网络带宽配置设置相关联的度量进行比较，基于比较确定是否调整客户端的网络带宽配置设置，以及如果适当的话调整网络带宽配置设置。

公开(公告)号：US20090182848A1

公开(公告)日：2009-07-16

申请号：US12190221

申请日：2008-08-12

申请人： Scott K. Brown ,  David L. Biderman

发明人： Scott K. Brown ,  David L. Biderman

IPC分类号： G06F15/177

CPC分类号： H04L41/0803 ,  H04L41/0806 ,  H04L41/0813 ,  H04L41/0816 ,  H04L41/0853 ,  H04L41/0896 ,  H04L67/14 ,  H04L67/22

摘要： A client may be configured to access a network by identifying a network bandwidth configuration setting to be used by the client in accessing a networked content source, enabling the client to access the content source using the network bandwidth configuration setting, monitoring client access to the content source, comparing client access metrics to metrics associated with the network bandwidth configuration setting, determining, based on the comparison, whether to adjust the network bandwidth configuration settings for the client, and adjusting the network bandwidth configuration setting if appropriate.

摘要翻译： 客户端可以被配置为通过识别客户端在访问网络内容源时使用的网络带宽配置设置来访问网络，使得客户端能够使用网络带宽配置设置访问内容源，监视客户端对内容的访问 来源，将客户端访问度量与与网络带宽配置设置相关联的度量进行比较，基于比较确定是否调整客户端的网络带宽配置设置，以及如果适当的话调整网络带宽配置设置。

公开(公告)号：US08977763B1

公开(公告)日：2015-03-10

申请号：US10830407

申请日：2004-04-23

申请人： Scott K. Brown ,  Stephen E. Loomis ,  David L. Biderman

发明人： Scott K. Brown ,  Stephen E. Loomis ,  David L. Biderman

IPC分类号： G06F15/16

CPC分类号： H04L67/2842 ,  H04L51/18 ,  H04L65/4076 ,  H04L65/608

摘要： A broadcaster may be configured to use a media protocol to provide a distribution point with a stream. The broadcaster uses a controller configured to implement the media protocol that includes a message class indicating an applicability of a message to a distribution point. The media protocol includes an authentication message structured and arranged to authenticate an establishment of a stream for distribution on the distribution point, a stream configuration message structured and arranged to configure the stream being distributed on the distribution point, a connection message structured and arranged to distribute the stream, and a stream session termination message structured and arranged to terminate a streaming session that has been established.

摘要翻译： 广播机构可以被配置为使用媒体协议来向分发点提供流。 广播机构使用配置为实现媒体协议的控制器，该媒体协议包括指示消息适用于分发点的消息类别。 所述媒体协议包括认证消息，所述认证消息被构造和配置为认证用于在所述分发点上分发的流的建立;流配置消息，其被构造和布置成配置在所述分发点上分布的流，连接消息被构造和布置成分发 该流和流会话终止消息被构造和布置成终止已建立的流传输会话。

公开(公告)号：US08635345B2

公开(公告)日：2014-01-21

申请号：US13620583

申请日：2012-09-14

申请人： Scott K. Brown ,  David L. Biderman

发明人： Scott K. Brown ,  David L. Biderman

IPC分类号： G06F13/00

CPC分类号： H04L41/0803 ,  H04L41/0806 ,  H04L41/0813 ,  H04L41/0816 ,  H04L41/0853 ,  H04L41/0896 ,  H04L67/14 ,  H04L67/22

摘要： A client may be configured to access a network by identifying a network bandwidth configuration setting to be used by the client in accessing a networked content source, enabling the client to access the content source using the network bandwidth configuration setting, monitoring client access to the content source, comparing client access metrics to metrics associated with the network bandwidth configuration setting, determining, based on the comparison, whether to adjust the network bandwidth configuration settings for the client, and adjusting the network bandwidth configuration setting if appropriate.

摘要翻译： 客户端可以被配置为通过识别客户端在访问网络内容源时使用的网络带宽配置设置来访问网络，使得客户端能够使用网络带宽配置设置来访问内容源，监视客户端对内容的访问 来源，将客户端访问度量与与网络带宽配置设置相关联的度量进行比较，基于比较确定是否调整客户端的网络带宽配置设置，以及如果适当的话调整网络带宽配置设置。

公开(公告)号：US08291062B2

公开(公告)日：2012-10-16

申请号：US10697804

申请日：2003-10-31

申请人： Scott K. Brown ,  Keith Peters ,  David L. Biderman

发明人： Scott K. Brown ,  Keith Peters ,  David L. Biderman

IPC分类号： G06F15/173

CPC分类号： H04L67/10 ,  H04L43/0888 ,  H04L65/60 ,  H04L67/322

摘要： Access to content may be enabled by receiving an instruction indicating a client request to access content, accessing a list of content sources capable of rendering the content for which access is requested by the client, determining a performance metric for at least two of the content sources, and selecting among the content sources based on the performance metric to identify a content source to be accessed by the client.

摘要翻译： 可以通过接收指示访问内容的客户端请求的指令来访问内容，访问能够呈现由客户端请求访问的内容的内容源的列表，确定至少两个内容源的性能度量 ，以及基于所述性能度量在所述内容源中进行选择以识别要由所述客户端访问的内容源。

公开(公告)号：US07734042B2

公开(公告)日：2010-06-08

申请号：US11019110

申请日：2004-12-22

申请人： David F. Pare ,  David L. Biderman ,  Stephen E. Loomis ,  Scott K. Brown ,  Michael Wise ,  David Wexelblat ,  Conor P. Cahill ,  David S. Bill

发明人： David F. Pare ,  David L. Biderman ,  Stephen E. Loomis ,  Scott K. Brown ,  Michael Wise ,  David Wexelblat ,  Conor P. Cahill ,  David S. Bill

IPC分类号： H04K1/00 ,  H04L9/00 ,  H04N7/167

CPC分类号： H04L65/602 ,  H04L9/0637 ,  H04L9/065 ,  H04L9/08 ,  H04L9/0844 ,  H04L9/12 ,  H04L67/2842 ,  H04L67/32

摘要： An initialization vector (IV) is employed to decrypt a block of a stream that has been encrypted with Cypher Block Chaining (CBC) encryption, without requiring decryption of previous blocks within the stream. For example, a listener who accesses a distribution point to retrieve encrypted content authenticates himself to an application server that regulates access to encrypted content on the distribution point, and responsively receives a key. The listener then requests access to a reference point within the encrypted content stream somewhere after its beginning (e.g., using preview clips). The distribution point relates the reference point to a corresponding block of the encrypted stream, and identifies an IV previously used for encryption of that block. The distribution point provides the associated encrypted block of content and the IV to the listener to enable mid-stream rendering of the encrypted content, without requiring the listener to decrypt previous blocks within the encrypted stream.

摘要翻译： 使用初始化向量（IV）来解密已经使用Cypher块链接（CBC）加密加密的流的块，而不需要解析流内的先前块。 例如，访问分发点以检索加密内容的监听者向调配对分发点上的加密内容的访问的应用服务器认证自身，并且响应地接收密钥。 然后，收听者在其开始之后的某处（例如，使用预览剪辑）请求访问加密内容流中的参考点。 分配点将参考点与加密流的相应块相关联，并且识别先前用于该块的加密的IV。 分发点向收听者提供相关的加密内容块和IV，以允许加密内容的中间流呈现，而不需要收听者解密加密流中的先前块。