公开(公告)号：US20050213727A1

公开(公告)日：2005-09-29

申请号：US11080984

申请日：2005-03-15

申请人： Eyal Nir ,  Jeffrey Rodman ,  David Drell

发明人： Eyal Nir ,  Jeffrey Rodman ,  David Drell

IPC分类号： H04L12/16 ,  H04L12/28 ,  H04L12/66 ,  H04M3/42 ,  H04M3/56 ,  H04M7/00 ,  H04Q11/00

CPC分类号： H04N7/152 ,  H04L12/66 ,  H04M3/567 ,  H04M3/568 ,  H04M7/006 ,  H04M2203/5036 ,  H04Q2213/1309 ,  H04Q2213/13106 ,  H04Q2213/1324

摘要： Disclosed herein are methods, systems, and devices for improved audio, video, and data conferencing. The present invention provides a conferencing system comprising a plurality of endpoints communicating data including audio data and control data according to a communication protocol. A local conference endpoint may control or be controlled by a remote conference endpoint. Data comprising control signals may be exchanged between the local endpoint and remote endpoint via various communication protocols. In other embodiments, the present invention provides for improved bridge architecture for controlling functions of conference endpoints including controlling functions of the bridge.

摘要翻译： 本文公开了用于改进音频，视频和数据会议的方法，系统和设备。 本发明提供一种会议系统，包括根据通信协议传送包括音频数据和控制数据的数据的多个端点。 本地会议端点可以由远程会议端点控制或控制。 包含控制信号的数据可以通过各种通信协议在本地端点和远程端点之间交换。 在其他实施例中，本发明提供了用于控制会议端点的功能的改进的桥接架构，包括控制桥的功能。

公开(公告)号：US06633985B2

公开(公告)日：2003-10-14

申请号：US10364963

申请日：2003-02-11

申请人： David Drell

发明人： David Drell

IPC分类号： G06F124

CPC分类号： H04L63/0281 ,  H04L63/029

摘要： A multimedia firewall adapter supplements a conventional firewall to allow transmission of videoconferencing data (e.g., audio and video data) associated with a protocol, such as the H.323 protocol. The multimedia firewall adapter supplements the conventional firewall so that audio and video data associated with the H.323 protocol are allowed to pass through the multimedia firewall adapter, thus circumventing the conventional firewall. The multimedia firewall adapter receives signals from an intranet and Internet, decomposes the signals, and attempts to authenticate the decomposed signals according to the H.323 protocol. If the decomposed signals are authenticated to contain videoconferencing data, the multimedia firewall adapter negotiates and establishes a connection, and allows the videoconferencing data to pass through. However, if the signal is not authenticated, then the signal is blocked from passing. The blocked signal is redirected to the conventional firewall for analysis.

摘要翻译： 多媒体防火墙适配器补充常规防火墙以允许传输与诸如H.323协议的协议相关联的视频会议数据（例如，音频和视频数据）。 多媒体防火墙适配器补充了常规防火墙，使与H.323协议相关的音频和视频数据可以通过多媒体防火墙适配器，从而规避了常规防火墙。 多媒体防火墙适配器从Intranet和Internet接收信号，分解信号，并尝试根据H.323协议对分解的信号进行认证。 如果分解的信号被认证为包含视频会议数据，则多媒体防火墙适配器协商并建立连接，并允许视频会议数据通过。 然而，如果信号未通过认证，则信号被阻止通过。 阻塞信号被重定向到常规防火墙进行分析。

公开(公告)号：US07450149B2

公开(公告)日：2008-11-11

申请号：US10396976

申请日：2003-03-24

申请人： David Drell ,  Richard Washington

发明人： David Drell ,  Richard Washington

IPC分类号： H04N7/14 ,  H04R1/02

CPC分类号： G01S5/18 ,  G01S1/70 ,  H04N7/142 ,  H04N7/148

摘要： A conferencing system with improved audio response, interface, and audio source tracking capabilities includes a low-profile base unit capable of capturing and processing audio and video information and of interfacing with other external devices, and a separate network interface device coupled to the low-profile base unit and capable of connecting to a network, producing audible sound, regulating power, and housing removable interface circuitry.

摘要翻译： 具有改进的音频响应，接口和音频源跟踪功能的会议系统包括能够捕获和处理音频和视频信息并与其他外部设备进行接口的低配置的基本单元，以及耦合到低频的单独的网络接口设备， 并且能够连接到网络，产生可听见的声音，调节电力和容纳可移除的接口电路。

公开(公告)号：US07089285B1

公开(公告)日：2006-08-08

申请号：US09684145

申请日：2000-10-05

申请人： David Drell

发明人： David Drell

IPC分类号： G06F15/16 ,  H04N7/14

CPC分类号： H04N7/152

摘要： A videoconferencing apparatus includes a multi-point (MP) conference application that enables the apparatus to combine and distribute audio and video signals received from a plurality of remote conference endpoints, thereby obviating the need to provide a separate multi-point control unit having hardware-based inverse multiplexers (IMUXs). The MP conference application is configured to generate, for each remote conference endpoint participating in a conference, discrete instances of a signal processing train by means of dynamically allocable IMUXs, each processing train including a communication process and audio/video/data codecs. The processed audio and video signals are subsequently conveyed to an audio mixer and video switching module for combination with locally-generated audio and video signals. The outputs of the audio mixer and video switching module are sent to each of the plurality of signal processing trains, which process the combined signals according to a transmit mode for distribution to the remote endpoints over the network.

摘要翻译： 一种视频会议装置包括多点（MP）会议应用程序，使得装置能够组合和分发从多个远程会议端点接收的音频和视频信号，从而避免提供具有硬件配置的单独的多点控制单元， 基于反相多路复用器（IMUX）。 MP会议应用被配置为通过动态可分配的IMUX为参与会议的每个远程会议端点生成信号处理列表的离散实例，每个处理列表包括通信过程和音频/视频/数据编解码器。 经处理的音频和视频信号随后传送到音频混合器和视频切换模块，用于与本地生成的音频和视频信号组合。 音频混合器和视频切换模块的输出被发送到多个信号处理列中的每一个，根据发送模式处理组合的信号，以通过网络分发给远程端点。