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    METHOD AND SYSTEM FOR CONDUCTING VIDEO CONFERENCES OF DIVERSE PARTICIPATING DEVICES
    1.
    发明申请
    METHOD AND SYSTEM FOR CONDUCTING VIDEO CONFERENCES OF DIVERSE PARTICIPATING DEVICES 审中-公开
    用于引导多媒体参与设备视频会议的方法和系统

    公开(公告)号：US20140028788A1

    公开(公告)日：2014-01-30

    申请号：US13869781

    申请日：2013-04-24

    Applicant: POLYCOM, INC.

    Inventor： Avishay Halavy

    IPC: H04N7/15

    CPC classification number: H04N7/152 ,  H04L45/74 ,  H04L65/403 ,  H04L65/60 ,  H04N7/147 ,  H04N19/172 ,  H04N19/44 ,  H04N19/91

    Abstract: A novel universal bridge (UB) can handle and conduct multimedia multipoint conferences between a plurality of MREs and LEPs without using an MRM, an MCU and a gateway. Further, a UB can be configured to allocate and release resources dynamically according to the current needs of each conferee and the session.

    Abstract translation: 一种新型通用网桥（UB）可以在不使用MRM，MCU和网关的情况下处理和进行多个MRE和LEP之间的多媒体多点会议。 此外，UB可以被配置为根据每个会议和会话的当前需要动态地分配和释放资源。

    Method and system for switching between video streams in a continuous presence conference
    3.
    发明授权
    Method and system for switching between video streams in a continuous presence conference 有权
    在连续存在会议中切换视频流的方法和系统

    公开(公告)号：US09215416B2

    公开(公告)日：2015-12-15

    申请号：US14276454

    申请日：2014-05-13

    Applicant: Polycom, Inc.

    Inventor： Avishay Halavy ,  Efrat Be'ery ,  Erez Harel

    IPC: H04N7/14 ,  H04N7/15

    CPC classification number: H04N7/152

    Abstract: A media relay conferencing system includes a media relay multipoint control unit and a media relay endpoint that handle needs for Intra frames in an efficient way, improves the conferees experience, and reduces the load on the resources associated with that media relay videoconference by reducing the number of Intra frames and lowering the impact of Intra frames when they are needed. In some embodiments, when a requiring media relay endpoint requests an Intra frame for a video stream received from a presenting media relay endpoint, a media relay multipoint control unit may respond by requesting the presenting media relay endpoint to synchronize a reference frame in an encoder of the presenting media relay endpoint, which encodes the relevant relay compressed video stream, with a reference frame in a decoder of the requiring media relay endpoint.

    Abstract translation: 媒体中继会议系统包括媒体中继多点控制单元和媒体中继端点，其以有效的方式处理帧内帧的需要，改善了与会人员的体验，并通过减少与媒体中继视频会议相关联的资源来减少对该资源的负担 的内帧，并在需要时降低帧内帧的影响。 在一些实施例中，当要求媒体中继端点向呈现媒体中继端点接收的视频流请求帧内帧时，媒体中继多点控制单元可以通过请求呈现媒体中继端点来同步参考帧在编码器 呈现媒体中继端点，其将相关中继压缩视频流编码为需要媒体中继端点的解码器中的参考帧。

    System and Method for Handling Critical Packets Loss in Multi-Hop RTP Streaming
    4.
    发明申请
    System and Method for Handling Critical Packets Loss in Multi-Hop RTP Streaming 有权
    处理多跳RTP流中关键包丢失的系统和方法

    公开(公告)号：US20130208079A1

    公开(公告)日：2013-08-15

    申请号：US13763382

    申请日：2013-02-08

    Applicant: Polycom, Inc.

    Inventor： Amir Yassur ,  David Bourgoyne ,  Avishay Halavy ,  John Spearman ,  Dmitry Veremeev ,  Xiaowei Wang

    IPC: H04N7/15

    CPC classification number: H04N7/152 ,  H04L65/403 ,  H04L65/608 ,  H04L65/80 ,  H04L69/22

    Abstract: Disclosed are example embodiments of a method and system to reduce re-transmission requirements of a compress media transferring system implemented in a network where packet loss could be possible. An extended header for each transmitted packet can indicate the priority of the packet and endpoints can determine if a re-transmission of a missing packet is desired. Buffering of packets at different hops in a multi-hop system could allow for the retransmission request to be satisfied by a more recent hop than the original system transmitting the video packet. In one embodiment three levels of priority are established to achieve a reliable frame rate of 30 frames per second by compressing the first and second levels at 7.5 frames per second and a third level at 15 frames per second.

    Abstract translation: 公开了减少在可能丢包的网络中实现的压缩媒体传送系统的重传要求的方法和系统的示例实施例。 每个发送的分组的扩展报头可以指示分组的优先级，并且端点可以确定是否期望丢失分组的重传。 在多跳系统中的不同跳的分组的缓冲可以允许通过比发送视频分组的原始系统更近的跳跃来满足重传请求。 在一个实施例中，建立了三个优先级，以通过以每秒7.5帧的速率压缩第一和第二电平，并以每秒15帧的速度压缩第三级，以实现每秒30帧的可靠帧速率。

    SYSTEM AND METHOD FOR COMBINING A PLURALITY OF VIDEO STREAMS GENERATED IN A VIDEOCONFERENCE
    7.
    发明申请
    SYSTEM AND METHOD FOR COMBINING A PLURALITY OF VIDEO STREAMS GENERATED IN A VIDEOCONFERENCE 有权
    用于组合视频流中产生的多个视频流的系统和方法

    公开(公告)号：US20130300819A1

    公开(公告)日：2013-11-14

    申请号：US13932145

    申请日：2013-07-01

    Applicant: Polycom, Inc.

    Inventor： Avishay Halavy

    IPC: H04N7/15

    CPC classification number: H04N7/15 ,  H04N7/147

    Abstract: Disclosed herein is a method and apparatus for videoconferencing that allows video images from two or more cameras at the same site to be displayed as a single panoramic image. Accordingly, a conferencing endpoint having a single monitor can display the panoramic image of the two or more video images from an endpoint having multiple cameras, such as a telepresence endpoint. A sliding display area can be used to define manually a zoomed portion of the panoramic image to be displayed. Alternatively, the zoomed portion may be determined automatically. The zoomed portion may be changed during the course of the conference.

    Abstract translation: 本文公开了一种用于视频会议的方法和装置，其允许来自相同站点的两个或更多个摄像机的视频图像被显示为单个全景图像。 因此，具有单个监视器的会议端点可以从具有多个摄像机的端点（例如远程呈现端点）显示两个或多个视频图像的全景图像。 可以使用滑动显示区域来手动定义要显示的全景图像的缩放部分。 或者，可以自动确定缩放部分。 缩放部分可以在会议过程中改变。

    Method and system for synchronizing audio and video streams in media relay conferencing
    10.
    发明授权
    Method and system for synchronizing audio and video streams in media relay conferencing 有权
    用于在媒体中继会议中同步音频和视频流的方法和系统

    公开(公告)号：US09426423B2

    公开(公告)日：2016-08-23

    申请号：US14054411

    申请日：2013-10-15

    Applicant: Polycom, Inc.

    Inventor： Avishay Halavy ,  Amir Yassur

    IPC: H04N7/15 ,  H04L29/06

    CPC classification number: H04N7/152 ,  H04L65/403 ,  H04L65/605 ,  H04L65/607 ,  H04L65/80

    Abstract: A novel technique allows synchronizing a plurality of audio and video streams received at a receiving media relay endpoint via an intermediate node, such as a media relay multipoint control unit. The received streams were generated by a plurality of transmitting media relay endpoints and been relayed to the plurality of receiving media relay endpoints via the intermediate node, but are seen as being using a single time domain, in terms of wall clock and manipulated timestamps, while preserving the correct capture time.

    Abstract translation: 一种新颖的技术允许经由诸如媒体中继多点控制单元的中间节点同步在接收媒体中继端点处接收的多个音频和视频流。 所接收的流由多个传输媒体中继端点生成，并且经由中间节点被中继到多个接收媒体中继端点，但是根据挂钟和被操纵的时间戳被看作是使用单个时域，而 保持正确的捕获时间。

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