公开(公告)号：US20080285452A1

公开(公告)日：2008-11-20

申请号：US11748379

申请日：2007-05-14

申请人： David R. Oran

发明人： David R. Oran

IPC分类号： H04L12/56

CPC分类号： H04L43/00 ,  H04L41/0213

摘要： In one embodiment, a packet filter (or “trap”) is installed on one or more interfaces of a router, switch (intermediary) or other node in an IP network that identifies multimedia packets for a particular media stream. A packet replicator (or “cloner”) duplicates the identified packets allowing the original packets to continue through the IP network. A forwarder (“tunneler”) encapsulates and sends the cloned media packets to a central facility where the tunneled media stream is further analyzed.

摘要翻译： 在一个实施例中，分组过滤器（或“陷阱”）安装在IP网络中的路由器，交换机（中间）或其他节点的一个或多个接口上，其识别特定媒体流的多媒体分组。 分组复制器（或“克隆”）复制所识别的分组，允许原始分组通过IP网络继续。 转发器（“隧道”）将克隆的媒体分组封装并发送到中央设施，其中进一步分析隧道化媒体流。

公开(公告)号：US20080253369A1

公开(公告)日：2008-10-16

申请号：US11736463

申请日：2007-04-17

申请人： David R. Oran ,  William VerSteeg

发明人： David R. Oran ,  William VerSteeg

IPC分类号： H04L12/26 ,  H04L12/56

CPC分类号： H04L1/1877 ,  H04L1/0001 ,  H04L1/0009 ,  H04L1/16 ,  H04L12/1868 ,  H04L41/069 ,  H04L43/0829 ,  H04L2001/0093

摘要： An upstream error controller monitors a media stream at a location upstream from an associated set of receivers receiving the media stream. The upstream error controller sends out suppression notices for any media packets lost upstream causing the receivers to suppress sending lost packet notices. In another embodiment, a repair point joins a primary multicast group with multiple receivers for receiving a native media stream. The repair point also joins a second multicast group receiving multicast backup data for retransmitting or repairing the native media stream that does not include an associated set of receivers. In yet another embodiment, the upstream error controller is used in combination with a hybrid packet repair scheme for adaptively switching among unicast retransmission, multicast retransmission, and Forward Error Correction (FEC).

摘要翻译： 上游错误控制器在接收媒体流的相关接收器组的上游位置处监视媒体流。 上游错误控制器向上游丢失的任何媒体数据包发出禁止通知，导致接收方抑制发送丢失的数据包通知。 在另一个实施例中，修复点将主多播组与多个接收器连接以接收本地媒体流。 修复点还加入接收组播备份数据的第二组播组，用于重传或修复不包括相关组接收机的本地媒体流。 在另一个实施例中，上游错误控制器与用于在单播重传，多播重传和前向纠错（FEC）之间进行自适应切换的混合分组修复方案组合使用。

公开(公告)号：US07225271B1

公开(公告)日：2007-05-29

申请号：US09896276

申请日：2001-06-29

申请人： Michael V. DiBiasio ,  Bruce S. Davie ,  David R. Oran

发明人： Michael V. DiBiasio ,  Bruce S. Davie ,  David R. Oran

IPC分类号： G06F15/173 ,  G06F15/16

CPC分类号： H04L47/10 ,  H04L47/215 ,  H04L47/2433 ,  H04L47/2441 ,  H04L47/2475 ,  H04L47/70 ,  H04L47/724 ,  H04L47/801

摘要： A system assigns network traffic flows to appropriate queues and/or queue servicing algorithms based upon one or more flow parameters contained in reservation requests associated with the traffic flows. The system may be disposed at an intermediate network device within a computer network. The intermediate network device includes a reservation engine, a packet classification engine, an admission control entity, a traffic scheduler, and a flow analyzer. The flow analyzer includes or has access to a memory that is preprogrammed with one or more heuristic sets for use in evaluating the flow parameters of reservation requests. When a reservation request that includes one or more flow parameters characterizing the bandwidth and/or forwarding requirements of the anticipated traffic flow is received, the flow analyzer applies the heuristic sets. Depending on which set of heuristics, if any, the parameters satisfy, the flow analyzer selects the appropriate queue and/or queue servicing algorithm for the flow.

摘要翻译： 系统基于与业务流相关联的预留请求中包含的一个或多个流参数来将网络流量流分配给适当的队列和/或队列服务算法。 系统可以被布置在计算机网络内的中间网络设备处。 中间网络设备包括预留引擎，分组分类引擎，准入控制实体，业务调度器和流量分析器。 流量分析器包括或可访问一个预编程有一个或多个启发式组件的存储器，用于评估预留请求的流程参数。 当接收到包括表征预期业务流的带宽和/或转发要求的一个或多个流参数的预留请求时，流分析器应用启发式集合。 根据哪一组启发式（如果有的话）参数满足，流量分析器为流程选择适当的队列和/或队列服务算法。

公开(公告)号：US07167451B1

公开(公告)日：2007-01-23

申请号：US09745387

申请日：2000-12-21

申请人： David R. Oran

发明人： David R. Oran

IPC分类号： H04L12/26 ,  H04L12/28 ,  H04L12/56 ,  H04L12/66 ,  G06F15/173

CPC分类号： H04L29/06027 ,  H04L43/0829 ,  H04L43/087 ,  H04L47/10 ,  H04L47/11 ,  H04L47/2416 ,  H04L47/283 ,  H04L47/365 ,  H04L47/38 ,  H04L47/70 ,  H04L47/724 ,  H04L47/765 ,  H04L47/801 ,  H04L47/805 ,  H04L47/808 ,  H04L47/822 ,  H04L65/1083 ,  H04L65/80

摘要： A call adaptation system tracks adaptation schemes used for transmitting audio packets in a Voice Over IP call. A user response to the Voice Over IP (VoIP) call is monitored. The call adaptation system then dynamically varies the adaptation schemes used for transmitting the audio packets according to the monitored user response.

摘要翻译： 呼叫适配系统跟踪用于在IP语音呼叫中传输音频分组的适配方案。 监听用户对IP语音（VoIP）呼叫的响应。 然后，呼叫适配系统根据所监视的用户响应动态地改变用于发送音频分组的适配方案。

公开(公告)号：US07020771B2

公开(公告)日：2006-03-28

申请号：US10430160

申请日：2003-05-05

申请人： David R. Oran

发明人： David R. Oran

IPC分类号： G06F17/00

CPC分类号： H04L63/20 ,  H04L63/0428 ,  H04L63/08

摘要： Providing data security involves receiving a request message at an intermediate network node. The request message is associated with a number of data packets from a communication device. The intermediate network node determines whether the request message has a satisfactory security hint. If the request message does not have a satisfactory security hint, the intermediate network node performs a security procedure on the data packets. If the request message has a satisfactory security hint, the intermediate network node relies on a security transform present in the data packets and routes the data packets without performing the security procedure.

摘要翻译： 提供数据安全性涉及在中间网络节点处接收请求消息。 请求消息与来自通信设备的多个数据分组相关联。 中间网络节点确定请求消息是否具有令人满意的安全提示。 如果请求消息没有令人满意的安全提示，则中间网络节点对数据包执行安全过程。 如果请求消息具有令人满意的安全提示，则中间网络节点依赖于数据分组中存在的安全变换，并且不执行安全过程来路由数据分组。

公开(公告)号：US06904037B2

公开(公告)日：2005-06-07

申请号：US08743837

申请日：1996-11-05

申请人： David R. Oran ,  Cary W. FitzGerald ,  Michael E. Knappe

发明人： David R. Oran ,  Cary W. FitzGerald ,  Michael E. Knappe

IPC分类号： H04L12/28 ,  H04L29/06 ,  H04L12/66

CPC分类号： H04L65/4076 ,  H04L12/5692 ,  H04L29/06 ,  H04L29/06027 ,  H04L65/607 ,  H04L69/22

摘要： Voice and data streams transmitted from a conventional DSVD modem are interfaced directly to a network access server through a modified DSVD modem according to the invention. The voice and data is formatted into network data packets that are then routed directly to different endpoints through the network access server. The modified DSVD modem includes a packet framer that removes conventionally transmitted V.76 DSVD framing formats and stuffs bytes into the voice and data to form network packets. The network access server then routes the voice and data packets to the different endpoints identified in a packet header. Since the voice and data are output from the DSVD modem in data packets, the voice and data can be routed more efficiently to different network endpoints.

摘要翻译： 从传统DSVD调制解调器发送的语音和数据流通过根据本发明的经修改的DSVD调制解调器直接连接到网络接入服务器。 语音和数据被格式化成网络数据包，然后通过网络访问服务器直接路由到不同的端点。 经修改的DSVD调制解调器包括一个分组成帧器，其将常规传输的V.76 DSVD成帧格式和填充字节移除到语音和数据中以形成网络分组。 然后，网络接入服务器将语音和数据分组路由到分组报头中标识的不同端点。 由于语音和数据在数据分组中从DSVD调制解调器输出，所以语音和数据可以更有效地路由到不同的网络端点。

公开(公告)号：US06636594B1

公开(公告)日：2003-10-21

申请号：US09885228

申请日：2001-06-19

申请人： David R. Oran

发明人： David R. Oran

IPC分类号： H04M342

CPC分类号： H04M7/128

摘要： A dial string is received from a session application that interfaces with a packet-based or circuit-switched system such as VoIP, PSTN, PBX, etc. Regular expression match patterns are compared with the input dial string. The dial plan mapper identifies one of the match patterns providing a longest match with the dial string and outputs call configuration information associated with the identified match pattern. The configuration information contains call parameters necessary for establishing the telephone call with the call destination. The configuration information format allows the dial plan mapper to specify any one of the wide variety of different session protocols that may be associated with a particular call destination.

摘要翻译： 从与基于分组或电路交换系统如VoIP，PSTN，PBX等接口的会话应用接收拨号串。将正则表达式匹配模式与输入拨号串进行比较。 拨号计划映射器识别提供与拨号串最长匹配的匹配模式之一，并输出与所识别的匹配模式相关联的呼叫配置信息。 配置信息包含与呼叫目的地建立电话呼叫所必需的呼叫参数。 配置信息格式允许拨号计划映射器指定可能与特定呼叫目的地相关联的各种不同会话协议中的任一种。

公开(公告)号：US06603774B1

公开(公告)日：2003-08-05

申请号：US09169560

申请日：1998-10-09

申请人： Michael E. Knappe ,  David R. Oran

发明人： Michael E. Knappe ,  David R. Oran

IPC分类号： H04J316

CPC分类号： H04M7/0072 ,  G10L19/167 ,  G10L19/173 ,  H04M7/006

摘要： Voice packets are redirected in packet telephony applications to a codec proxy system that makes voice endpoints involved in an end-to-end call appear to be using the voice codec required of it by the other endpoint, even if the endpoints do not possess the required codec capability. The codec proxy system acts as a broker during initial capability negotiations, and as a real-time transcoding facility between disparate codec capabilities once voice traffic begins. The resulting system allows non-standard, cost-optimized and/or feature specific packet voice endpoints to interoperate in a standards-based network.

摘要翻译： 语音数据包在分组电话应用程序中被重定向到编解码器代理系统，使得端到端呼叫中涉及的语音端点似乎正在使用另一端点所需的语音编解码器，即使端点不具有所需的 编解码能力。 编解码器代理系统在初始功能协商期间充当代理，并且在语音流量开始之后作为不同编解码器功能之间的实时转码功能。 所得到的系统允许非标准，成本优化和/或特征特定分组语音端点在基于标准的网络中互操作。

公开(公告)号：US06584093B1

公开(公告)日：2003-06-24

申请号：US09225921

申请日：1999-01-05

申请人： Hussein Farouk Salama ,  David R. Oran ,  Dhaval N. Shah

发明人： Hussein Farouk Salama ,  David R. Oran ,  Dhaval N. Shah

IPC分类号： H04L1228

CPC分类号： H04L65/1009 ,  H04L12/2856 ,  H04L12/2898 ,  H04L29/06 ,  H04L29/06027 ,  H04L45/02 ,  H04L45/04 ,  H04L65/1006 ,  H04M7/1285

摘要： A method and apparatus for inter-domain routing of calls in a network, where the network represents a first wide area network. A routing node of the network advertises its access to a range of addresses in a second wide area network and a cost for access to the range of addresses to all adjacent nodes in the network. Each of the adjacent nodes inserts an entry in its own routing table associating access to the range of addresses in the second wide area network with the network address of the routing node and the cost for access. Each adjacent node then modifies the cost for access by adding its own cost and advertises its access to the range of addresses in the second wide area network and the modified cost for access to all of its adjacent nodes. When a call addressed to a destination address in the range of address in the second wide area network is received at each node of the network, then the node searches for the entry in its routing table corresponding to the range of addresses in the second wide area network having the lowest cost for access and connects the call to the adjacent node associated with the entry having the lowest cost. The routing node can also advertise one or more protocol types which it can support, where the protocol types are associated with the routing node in the routing table in each adjacent node and a call having a given protocol type is also routed at each node of the network based upon its protocol type.

摘要翻译： 一种用于网络中的呼叫的域间路由的方法和装置，其中网络表示第一广域网。 网络的路由节点通告其对第二广域网中的地址范围的访问，以及用于访问到网络中所有相邻节点的地址范围的成本。 每个相邻节点在其自己的路由表中插入条目，将访问与第二广域网中的地址范围相关联，并将路由节点的网络地址和访问成本相关联。 然后，每个相邻节点通过添加自己的成本来修改访问成本，并通告其对第二广域网中的地址范围的访问以及用于访问其所有相邻节点的修改成本。 当在网络的每个节点处接收到寻址到第二广域网中的地址范围内的目的地地址的呼叫时，节点在其路由表中搜索对应于第二广域中的地址范围的条目 具有最低访问成本的网络，并将呼叫连接到与具有最低成本的条目相关联的相邻节点。 路由节点还可以通告其可以支持的一种或多种协议类型，其中协议类型与每个相邻节点中的路由表中的路由节点相关联，并且具有给定协议类型的呼叫也在路由节点的每个节点处路由 网络基于其协议类型。

公开(公告)号：US06333931B1

公开(公告)日：2001-12-25

申请号：US09221912

申请日：1998-12-28

申请人： David C. LaPier ,  David R. Oran ,  Clay H. Neighbors ,  Khaled A. Gouda ,  Andrew Adamian

发明人： David C. LaPier ,  David R. Oran ,  Clay H. Neighbors ,  Khaled A. Gouda ,  Andrew Adamian

IPC分类号： H04Q1100

CPC分类号： H04M7/0024 ,  H04L12/6418 ,  H04L2012/6472 ,  H04L2012/6486 ,  H04M3/24 ,  H04M7/06

摘要： A method and apparatus are disclosed for interconnecting a circuit-switched telephone network and a packet-switched data network for communication among them. A signaling trunk of a circuit-switched telephone network is coupled to a signaling access server that is also coupled to a signaling, management and control network. One or more voice trunks of the telephone network are coupled to one or more network access servers, which are also coupled to the control network to thereby receive instructions from the signaling access server. The network access servers are also coupled to a packet-switched data network, such as the global packet-switched network known as Internet. The signaling access server can receive call setup messages and other messages in standard telephone network protocol formats and convert them into call setup messages in a special protocol for communications between the signaling access server and the network access servers. The signaling access server can instruct the network access servers to establish a call, containing voiceband information such as modem-based data calls, from the voice trunks to the data network. Accordingly, the public switched telephone network and the Internet may be interconnected and may inter-communicate without modifying the protocols of either one.

摘要翻译： 公开了用于互连电路交换电话网络和分组交换数据网络以在它们之间进行通信的方法和装置。 电路交换电话网络的信令中继线耦合到也耦合到信令，管理和控制网络的信令接入服务器。 电话网络的一个或多个语音干线被耦合到一个或多个网络接入服务器，其也耦合到控制网络，从而从信令接入服务器接收指令。 网络接入服务器还耦合到分组交换数据网络，例如称为因特网的全球分组交换网络。 信令接入服务器可以以标准电话网络协议格式接收呼叫建立消息和其他消息，并以专用协议将它们转换成呼叫建立消息，用于信令接入服务器和网络接入服务器之间的通信。 信令接入服务器可以指示网络接入服务器从语音中继线到数据网络建立包含诸如基于调制解调器的数据呼叫的语音频带信息的呼叫。 因此，公共交换电话网络和互联网可以互连，并且可以在不修改任一协议的情况下进行通信。