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    • 2. 发明申请
    • VIDEO CALLS FOR EXTERNAL NETWORKS
    • 视频外部网络呼叫
    • US20130201280A1
    • 2013-08-08
    • US13756065
    • 2013-01-31
    • AASTRA TECHNOLOGIES LIMITED
    • Francis SHENPaulo FRANCISCO
    • H04N7/14
    • H04N7/147H04L12/1818H04M7/0039
    • A method for setting up a video communication session via an Internet Protocol (IP) network between a first correspondent and a second correspondent, the method having the steps of: the first correspondent placing a call through a public switched telephone network (PSTN) to the second correspondent to establish a PSTN communication session; the first correspondent sending a compatibility request via in-band signals to determine compatibility with the first correspondent for video communication; prompting the second correspondent to accept or decline an invitation for the video communication session; exchanging setup information via the PSTN for setting up the video communication session when the second correspondent accepts the invitation, the setup information comprising attributes of each of the correspondents; and setting up the video communication session via the IP network and terminating the PSTN communication session.
    • 一种用于在第一对应和第二通信对方之间经由因特网协议(IP)网络建立视频通信会话的方法,所述方法具有以下步骤:第一通信对方通过公共交换电话网络(PSTN)将呼叫发送到 第二个记者建立PSTN通信会话; 第一记者通过带内信号发送兼容性请求,以确定与第一通信方的视频通信的兼容性; 促使第二个记者接受或拒绝视频通信会议的邀请; 当第二通信对象接受邀请时,通过PSTN交换设置信息以建立视频通信会话,该设置信息包括每个记者的属性; 并通过IP网络建立视频通信会话并终止PSTN通信会话。
    • 5. 发明申请
    • COLLABORATION SYSTEM & METHOD
    • 协作系统与方法
    • US20130141517A1
    • 2013-06-06
    • US13707303
    • 2012-12-06
    • Aastra Technologies Limited
    • Francis SHENPaulo FRANCISCO
    • H04N7/15
    • H04N7/15H04L65/4023H04L65/4038
    • A network apparatus in a collaboration system with a plurality of participants, the apparatus comprising: a processing structure; and a memory including computer program code, wherein the memory and the computer program code are configured, with the processing structure, to cause the network apparatus to at least: present content on a display coupled to the processing structure; select a portion of the display for sharing, the portion having the shared content; simultaneously send said shared content to said display and to an encoder for encoding; automatically discover a network server configured to distribute the shared content with the plurality of participants; couple the apparatus to the network server and transmit the shared content to the network server for distribution to at least one of the plurality of participants, such that the shared content is encoded and decoded, and displayed in real-time.
    • 一种具有多个参与者的协作系统中的网络装置,所述装置包括:处理结构; 以及包括计算机程序代码的存储器,其中所述存储器和所述计算机程序代码被配置为具有所述处理结构,以使所述网络装置至少:在耦合到所述处理结构的显示器上呈现内容; 选择一部分显示器进行共享,该部分具有共享内容; 同时将所述共享内容发送到所述显示器和编码器进行编码; 自动发现被配置为与多个参与者分发共享内容的网络服务器; 将设备耦合到网络服务器并将共享内容发送到网络服务器以分发给多个参与者中的至少一个,使得对共享内容进行编码和解码,并实时显示。
    • 10. 发明申请
    • System and method for transmitting FEC packets
    • 用于传输FEC数据包的系统和方法
    • US20070220405A1
    • 2007-09-20
    • US11355956
    • 2006-02-17
    • James ArnoldRobert DoranR. McCaskill
    • James ArnoldRobert DoranR. McCaskill
    • H03M13/00
    • H03M13/2703H03M13/373H04L1/0041H04L1/0071
    • A system and method for transmitting IP packets arranged in an L×D matrix comprising data packets and L number of FEC packets, L corresponding to a number of columns in the matrix, and D corresponding to a number rows in the matrix includes assigning a first location in the matrix as an FEC packet location, skipping D number of locations in the matrix from the most recently assigned FEC packet location to a new location, and determining if the new location is positioned in the same column as an existing FEC packet location. The new location is assigned as an FEC packet location if it is determined that the new location is not positioned in the same column as an existing FEC packet location. If it is determined that the new location is positioned in the same column as an existing FEC packet location, then the location is moved back in the matrix until the moved-back location is not positioned in the same column as an existing FEC packet location, and the moved-back location is assigned as an FEC packet location. The skipping, determining, assigning, and moving back are repeatedly performed until the number of FEC packet locations is equal to L. The FEC packets protecting the D previous IP packets in the same column are transmitted in accordance with the identified FEC packet locations.
    • 用于发送以包括数据分组和L个FEC分组的L×D矩阵排列的IP分组的系统和方法,对应于矩阵中的列数,对应于矩阵中的数字行的D包括:分配第一位置 该矩阵作为FEC分组位置,将矩阵中的D个数目从最近分配的FEC分组位置跳到新的位置,并且确定新的位置是否位于与现有FEC分组位置相同的列中。 如果确定新位置不与现有FEC分组位置位于同一列中,则将新位置分配为FEC分组位置。 如果确定新位置与现有FEC分组位置位于相同的列中,则该位置以矩阵方式移回,直到移回位置不与现有FEC分组位置位于同一列中, 将移回位置分配为FEC分组位置。 重复执行跳过,确定,分配和回退,直到FEC分组位置的数量等于L.根据所识别的FEC分组位置来传输保护同一列中的先前IP分组的FEC分组。