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    System and method for implementing multimedia calls across a private network boundary
    1.
    发明授权
    System and method for implementing multimedia calls across a private network boundary 有权
    通过专用网络边界实现多媒体呼叫的系统和方法

    公开(公告)号：US08130766B2

    公开(公告)日：2012-03-06

    申请号：US10565651

    申请日：2003-12-26

    申请人： Zhengrong Yang

    发明人： Zhengrong Yang

    IPC分类号： H04L12/28

    CPC分类号： H04L65/1026 ,  H04L29/06027 ,  H04L29/12103 ,  H04L29/125 ,  H04L29/12566 ,  H04L29/12575 ,  H04L61/1535 ,  H04L61/2564 ,  H04L61/2589 ,  H04L61/2592 ,  H04L65/1036 ,  H04L65/1043 ,  H04L65/1046

    摘要： A system and method of the present invention for implementing multimedia calls across a private network boundary is provided, the system comprising a public network and at least one private network, and at least the following hardware components: at least one media gateway for connecting with multimedia terminals of various protocols; at least one boundary gateway for connecting the private network and the public network and performing the translation of a private network address and a public network address between each other, wherein each boundary gateway is provide with an unique subnetwork ID to correspond to the private network connected therewith; a call controller for establishing calls and controlling service logics, in which is recorded the correspondence relationship information of all said boundary gateways and the subnetwork IDs; wherein, the call controller processes a call concerning a private network according to the subnetwork ID information. The system and method of the present invention is simple to implement, has high efficiency and wide application range; saves the boundary gateway resources, does not modify the signaling content and retain its integrity; is applicable to the media gateways of various protocols, and has a high adaptability.

    摘要翻译： 提供了一种用于在专用网络边界上实现多媒体呼叫的本发明的系统和方法，所述系统包括公共网络和至少一个专用网络，并且至少包括以下硬件组件：用于与多媒体连接的至少一个媒体网关 各种协议终端; 用于连接专用网络和公共网络的至少一个边界网关，并且在彼此之间执行专用网络地址和公共网络地址的转换，其中每个边界网关提供唯一的子网络ID以对应于所连接的专用网络 与; 用于建立呼叫和控制服务逻辑的呼叫控制器，其中记录所有所述边界网关和子网ID的对应关系信息; 其中，所述呼叫控制器根据所述子网ID信息处理关于专用网络的呼叫。 本发明的系统和方法易于实现，效率高，应用范围广; 节省边界网关资源，不修改信令内容并保持其完整性; 适用于各种协议的媒体网关，具有较高的适应性。

    Network traversal method for establishing connection between two endpoints and network communication system
    2.
    发明授权
    Network traversal method for establishing connection between two endpoints and network communication system 有权
    网络遍历方法，用于建立两个端点和网络通信系统之间的连接

    公开(公告)号：US08055771B2

    公开(公告)日：2011-11-08

    申请号：US12604403

    申请日：2009-10-23

    申请人： I-Tsung Shen ,  Yung-Sheng He

    发明人： I-Tsung Shen ,  Yung-Sheng He

    IPC分类号： G06F15/16 ,  G06F15/173 ,  G06F15/177

    CPC分类号： H04L29/12528 ,  H04L29/12566 ,  H04L61/2575 ,  H04L61/2589 ,  H04L67/104

    摘要： A network traversal method is provided. A plurality of endpoints in a plurality of network address translators (NATs) is grouped into a plurality of groups, and an on-line server is deployed for managing information related to the groups and information related to connections that have traversed the NATs, wherein the endpoints in the same NAT are grouped into the same group. In addition, when one of the endpoints is about to establish a connection with another one of the endpoints, whether there is a peer-to-peer direct connection between the groups corresponding to the two endpoints is determined. If there is the peer-to-peer direct connection between the groups corresponding to the two endpoints, the connection between the two endpoints is established by using the peer-to-peer direct connection. Thereby, the network traversal method can effectively reduce the time, cost, and complexity for traversing the NATs.

    摘要翻译： 提供网络遍历方法。 多个网络地址转换器（NAT）中的多个端点被分组成多个组，并且部署用于管理与组相关的信息的在线服务器以及与已经穿过NAT的连接相关的信息，其中， 同一NAT中的端点分组到同一组。 此外，当其中一个端点即将与另一个端点建立连接时，确定在与两个端点对应的组之间是否存在对等直接连接。 如果在与两个端点相对应的组之间存在对等直接连接，则通过使用对等直接连接来建立两个端点之间的连接。 因此，网络遍历方法可以有效地减少穿越NAT的时间，成本和复杂性。

    COMMUNICATION TERMINAL, COMMUNICATION METHOD, AND PROGRAM
    3.
    发明申请
    COMMUNICATION TERMINAL, COMMUNICATION METHOD, AND PROGRAM 有权
    通信终端，通信方法和程序

    公开(公告)号：US20110242971A1

    公开(公告)日：2011-10-06

    申请号：US13133766

    申请日：2009-12-24

    申请人： Takeshi Kokado

    发明人： Takeshi Kokado

    IPC分类号： H04L12/26

    CPC分类号： H04L29/12547 ,  H04L29/12566 ,  H04L45/22 ,  H04L45/28 ,  H04L61/2582 ,  H04L61/2589 ,  H04L67/2814 ,  H04L67/2819 ,  H04L67/288

    摘要： A communication terminal (6a, 6s, 6L) includes the following functional units. A relay communication establishment unit (621) establishes communication paths via respective relay devices (4a to 4N, 6p, 6q). A communication processing unit (624a) performs communication for pieces of divided data via the relay devices. A communication state monitor unit (622) changes a current set of the relay devices to a new set of relay devices so as to be used for the communication, based on estimation results of communication states.

    摘要翻译： 通信终端（6a，6s，6L）包括以下功能单元。 中继通信建立单元（621）经由各个中继装置（4a〜4N，6p，6q）建立通信路径。 通信处理单元（624a）经由中继装置进行分割数据的通信。 通信状态监视单元（622）基于通信状态的估计结果将当前的中继设备集合改变为新的中继设备集合，以便用于通信。

    System and method for establishing channels for a real time streaming media communication system
    4.
    发明授权
    System and method for establishing channels for a real time streaming media communication system 有权
    用于建立实时流媒体通信系统的通道的系统和方法

    公开(公告)号：US07173928B2

    公开(公告)日：2007-02-06

    申请号：US10077205

    申请日：2002-02-15

    申请人： Charles Xu ,  Paul Pay-Lun Ju

    发明人： Charles Xu ,  Paul Pay-Lun Ju

    IPC分类号： H04L12/66 ,  G06F15/16

    CPC分类号： H04L65/105 ,  H04L29/125 ,  H04L29/12566 ,  H04L61/2564 ,  H04L61/2589 ,  H04L65/1053

    摘要： A directory server provides a media session channel for communication of real time streaming media data from a remote client to a client served by an address translation firewall. The directory server includes a client registration module for receiving a registration datagram originated by the client, source network address and a source port number from the registration datagram, and providing a session signaling message from the remote client to the client utilizing the extracted source network address and source port number.

    摘要翻译： 目录服务器提供媒体会话信道，用于将来自远程客户端的实时流媒体数据通信到由地址转换防火墙服务的客户端。 目录服务器包括客户端注册模块，用于从注册数据报接收由客户端发起的注册数据报，源网络地址和源端口号，并且使用提取的源网络地址从远程客户端向客户端提供会话信令消息 和源端口号。

    System and method for establishing channels for a real time streaming media communication system
    6.
    发明申请
    System and method for establishing channels for a real time streaming media communication system 有权
    用于建立实时流媒体通信系统的通道的系统和方法

    公开(公告)号：US20020122416A1

    公开(公告)日：2002-09-05

    申请号：US10077205

    申请日：2002-02-15

    申请人： Innomedia Pte Ltd.

    发明人： Charles Xu ,  Paul Pay-Lun Ju

    IPC分类号： H04L012/66

    CPC分类号： H04L65/105 ,  H04L29/125 ,  H04L29/12566 ,  H04L61/2564 ,  H04L61/2589 ,  H04L65/1053

    摘要： A directory server provides a media session channel for communication of real time streaming media data from a remote client to a client served by an address translation firewall. The directory server includes a client registration module for receiving a registration datagram originated by the client, source network address and a source port number from the registration datagram, and providing a session signaling message from the remote client to the client utilizing the extracted source network address and source port number.

    摘要翻译： 目录服务器提供媒体会话信道，用于将来自远程客户端的实时流媒体数据通信到由地址转换防火墙服务的客户端。 目录服务器包括客户端注册模块，用于从注册数据报接收由客户端发起的注册数据报，源网络地址和源端口号，并且使用提取的源网络地址从远程客户端向客户端提供会话信令消息 和源端口号。

    Distributed connectivity policy enforcement with ICE
    9.
    发明授权
    Distributed connectivity policy enforcement with ICE 有权
    与ICE的分布式连接策略实施

    公开(公告)号：US09203872B2

    公开(公告)日：2015-12-01

    申请号：US12709110

    申请日：2010-02-19

    申请人： Rajesh Gunnalan ,  Humayun Mukhtar Khan ,  Abhinav Bose

    发明人： Rajesh Gunnalan ,  Humayun Mukhtar Khan ,  Abhinav Bose

    IPC分类号： G06F15/16 ,  H04L29/06 ,  H04L12/24 ,  H04L29/12

    CPC分类号： H04L65/1069 ,  H04L29/12528 ,  H04L29/12566 ,  H04L41/0893 ,  H04L47/726 ,  H04L47/781 ,  H04L47/828 ,  H04L61/2575 ,  H04L61/2589

    摘要： Instead of utilizing a centralized server or hardware (routers/gateways) to enforce connectivity policy restrictions, the policy connectivity restrictions for media session traffic are enforced by an endpoint that is involved in the media communication. Based on the policy requirements, the client enforces the policy restrictions by restricting the candidates that may be selected for the establishment of the media path. For example, the enforcement may result in the client selecting a path from available candidates that avoids congested Wide Area Network (WAN) links, avoiding a low bandwidth link, or possibly even failing the communication completely. The clients may also provide periodic updates to the policy server to allow tracking of the utilization of managed WAN links.

    摘要翻译： 不采用集中式服务器或硬件（路由器/网关）来强制执行连接策略限制，媒体会话流量的策略连接限制由媒体通信中涉及的端点执行。 根据策略要求，客户端通过限制可能被选择用于建立媒体路径的候选者来强制执行策略限制。 例如，执行可能导致客户端从可用的候选者中选择一条路径，以避免拥塞的广域网（WAN）链路，避免低带宽链路，甚至可能甚至完全失败通信。 客户端还可以向策略服务器定期更新，以便跟踪受管WAN链路的利用率。