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141. 发明申请

US20060256187A1 System and method for monitoring and diagnosis of video network performance 有权
公开(公告)号：US20060256187A1
公开(公告)日：2006-11-16
申请号：US11489622
申请日：2006-07-20
申请人： Robert Sheldon , James Stephens
发明人： Robert Sheldon , James Stephens
IPC分类号： H04N7/14
CPC分类号： H04N17/004
摘要： A system and method for diagnosis of video device performance in the transfer of audio visual data over a video network physically interfaces with the network to receive audio visual data associated with the video device of interest and uses diagnostic tools to access the audio visual data for determination of performance statistics with analysis of the accessed audio visual data, including video device jitter, latency, throughput, and packet loss.

142. 发明申请

US20060200695A1 System and method for re-routing failed video calls 有权
公开(公告)号：US20060200695A1
公开(公告)日：2006-09-07
申请号：US11429313
申请日：2006-05-08
申请人： Gordon Matthews , James Stephens
发明人： Gordon Matthews , James Stephens
IPC分类号： G06F11/00
CPC分类号： H04L1/22 , H04L12/1818 , H04L12/1827 , H04L12/1868 , H04L12/1877 , H04L67/1002 , H04L67/1034
摘要： A system and method for re-routing a failed video call schedules one or more reserve video devices for use in the event of failure of the video devices selected to support a video call. Upon detection of a failure of a video device, the video network platform re-establishes the video call by using the reserve video devices to replace the failed video device, thus avoiding the waste of video network resources and delays in the completion of a video call. More efficient use of reserve video devices is obtained by pooling the reserve video devices with a reserve video network that supports plural primary video networks.

143. 发明授权

US07034860B2 Method and apparatus for video conferencing having dynamic picture layout 有权
标题翻译：具有动态图像布局的视频会议的方法和装置
公开(公告)号：US07034860B2
公开(公告)日：2006-04-25
申请号：US10601095
申请日：2003-06-20
申请人： Tom Erik Lia , Bjorn Aalerud , Geir Scott Nilsen
发明人： Tom Erik Lia , Bjorn Aalerud , Geir Scott Nilsen
IPC分类号： H04N7/14
CPC分类号： H04N7/147 , H04N7/148 , H04N7/152
摘要： A method and apparatus for conferencing dynamically determines conference parameters such as image layout, image resolution and bandwidth. The conference parameters are dynamically determined based on the number of participants or video sources or both that currently connect to the conference. Video signals received from connected sites are processed to provide a composite video signal according to defined conference parameters and the composite video signal is transmitted to the connected sites. Upon one or more other sites connecting to the conference or one or more of the connected sites disconnecting from the conference or both, such that the number of sites or sources currently connected in the conference changes, one or more conference parameters is redefined. The received video signals are processed according to the redefined conference parameters to provide a second composite video signal that is transmitted to the connected sites. The conference parameters include composite image layout, image resolution, and conference bandwidth rate.
摘要翻译：用于会议的方法和装置动态地确定诸如图像布局，图像分辨率和带宽的会议参数。会议参数根据当前连接到会议的参与者或视频源的数量或两者动态地确定。根据定义的会议参数处理从连接站点接收的视频信号以提供复合视频信号，并将复合视频信号传输到所连接的站点。在连接到会议的一个或多个其他站点或与会议或两者连接的一个或多个连接站点中，使得当前在会议中连接的站点或源的数量改变时，重新定义一个或多个会议参数。接收的视频信号根据重新定义的会议参数进行处理，以提供传输到连接站点的第二复合视频信号。会议参数包括复合图像布局，图像分辨率和会议带宽速率。

144. 发明授权

US07010119B2 Echo canceller with reduced requirement for processing power 有权
标题翻译：回波消除器对处理能力要求降低
公开(公告)号：US07010119B2
公开(公告)日：2006-03-07
申请号：US10724043
申请日：2003-12-01
申请人： Trygve Frederik Marton , Ingvar Flaten Aarnes
发明人： Trygve Frederik Marton , Ingvar Flaten Aarnes
IPC分类号： H04B3/23
CPC分类号： H04M9/082
摘要： An echo canceller processing echo, noise and near end talk in a narrower, but still intelligible, frequency band for reducing required processing power and complexity. In a preferred embodiment of the present invention, an input audio signal of captured sound in an audio communication system is decimated and then divided into a number of sub bands by an analyze filter. Each sub band is processed as in background audio echo cancelling by subtracting the signal with an echo estimate from a model of the acoustic signal in the respective sub band, except from that the signal is also bypassed, adjusted by a filter and subtracted from the processed signal. The resulting signals are then recombined by a synthesize filter and interpolated to the original sampling rate and bandwidth. Finally, the output from the synthesize filter is added to the input audio signal, which has been delayed and adjusted by a filter. The filters are controlled by a control algorithm detecting the presence of near end sound, far end sound and noise, so that the filters, and consequently the high pass filter of the echo canceller, only pass high frequency (above low pass frequencies) when only near end sound is detected.
摘要翻译：回波消除器在较窄但仍然可理解的频带中处理回波，噪声和近端通话，以减少所需的处理能力和复杂性。在本发明的优选实施例中，音频通信系统中的捕获声音的输入音频信号被抽取，然后由分析滤波器分成多个子频带。通过从相应子带中的声学信号的模型中减去具有回波估计的信号来处理每个子带，除了信号被旁路之外，由滤波器调整并从处理的信号中减去信号。然后，所得到的信号由合成滤波器重新组合，并被内插到原始采样速率和带宽。最后，将合成滤波器的输出添加到输入音频信号中，输入音频信号被滤波器延迟和调整。滤波器由检测近端声音，远端声音和噪声的存在的控制算法控制，使得滤波器以及因此的回波消除器的高通滤波器仅在仅仅通过高频（高于低通频率）时才通过检测到近端声音。

145. 发明申请

US20060018386A1 Method for chroma deblocking 有权
标题翻译：色度去块方法
公开(公告)号：US20060018386A1
公开(公告)日：2006-01-26
申请号：US11153243
申请日：2005-06-14
申请人： Gisle Bjontegaard
发明人： Gisle Bjontegaard
IPC分类号： H04N11/02 , H04N11/04 , H04N7/12 , H04B1/66
CPC分类号： H04N19/85 , H04N19/186 , H04N19/44 , H04N19/527 , H04N19/61
摘要： The invention is related to decoding of block wise coded video pictures. The determination of using de-blocking filtering between coded chroma blocks is based on alternative characteristics compared to the characteristics used in H.264/AVC.
摘要翻译：本发明涉及块编码视频图像的解码。在H.264 / AVC中使用的特性相比，使用编码色块之间的去块滤波的确定是基于替代特性的。

146. 发明申请

US20050243741A1 Method, apparatus, system, and computer program product for interruption-free conference calling 失效
标题翻译：方法，设备，系统和计算机程序产品，用于无中断电话会议
公开(公告)号：US20050243741A1
公开(公告)日：2005-11-03
申请号：US11072277
申请日：2005-03-07
申请人： Paul Flateby
发明人： Paul Flateby
IPC分类号： H04L20060101 , H04L12/66 , H04M3/56 , H04N7/15 , H04Q11/00
CPC分类号： H04L12/66 , H04L12/1863 , H04M3/567 , H04M7/0027 , H04M2203/2088 , H04N7/15
摘要： The present invention relates to instability problems in circuit switched conferencing, and provides a method for establishing a backup “voice only” telephony link in parallel with a H.320 conference link. The two links between the calling parties is handled as one logical call entity. Audio is muted on the backup voice telephony link when status of the H.320 link is okay. If communication problems are detected on the H.320 link, audio is muted over the H.320 link and switched to the backup voice telephony link instead.
摘要翻译：本发明涉及电路交换会议中的不稳定性问题，并且提供了一种与H.320会议链路并行建立备份“仅话音”电话链路的方法。呼叫方之间的两个链路被处理为一个逻辑呼叫实体。当H.320链路的状态正常时，备份语音电话链路的音频静音。如果在H.320链路上检测到通信问题，音频将通过H.320链路进行静音，并切换到备用语音电话链路。

147. 外观设计

USD510920S1 Endpoint for a videoconference 失效
标题翻译：终端视频会议
公开(公告)号：USD510920S1
公开(公告)日：2005-10-25
申请号：US29201607
申请日：2004-03-16
申请人： Roy Tandberg , Hallgrim Sagen
设计人： Roy Tandberg , Hallgrim Sagen

148. 发明申请

US20050027581A1 System and method for setup of meetings and conferences 审中-公开
标题翻译：设立会议和会议的系统和方法
公开(公告)号：US20050027581A1
公开(公告)日：2005-02-03
申请号：US10871026
申请日：2004-06-21
申请人： Snorre Kjesbu , Thies Schrader , Hakon Dahle , Vegard Hammer
发明人： Snorre Kjesbu , Thies Schrader , Hakon Dahle , Vegard Hammer
IPC分类号： H04L12/18 , H04L12/58 , H04L29/06 , H04L29/08 , H04N7/15 , G06F17/60
CPC分类号： G06Q10/06311 , G06Q10/06375 , H04L12/1818 , H04L29/06 , H04L67/14 , H04L67/32 , H04L69/329 , H04N7/15
摘要： A system and method for connecting one or more systems to a user for automatic determination of which system the user may use to participate in a call. A predefined list of videoconferencing systems and/or locations for each user is predefined and arranged in a prioritized order. When scheduling a meeting and/or a videoconference, the predefined user lists are taken into account when selecting end-points and other resources involved in the meeting/conference. The selection process may be controlled by predefined rules also taking various system availability, network resources and the routes required for connecting the other systems in the conference into account. The present invention also introduces presence applications to facilitate scheduling and set up of ad hoc meetings/conferences.
摘要翻译：一种用于将一个或多个系统连接到用户的系统和方法，用于自动确定用户可以使用哪个系统来参与呼叫。视频会议系统和/或每个用户的位置的预定义列表是以优先顺序被预先定义和排列的。在安排会议和/或视频会议时，在选择会议/会议中涉及的终点和其他资源时，会考虑预定义的用户列表。选择过程可以通过预定义的规则来控制，还可以考虑各种系统可用性，网络资源和连接会议中的其他系统所需的路由。本发明还介绍了存在应用以便于安排和组建特设会议/会议。

149. 发明申请

US20040168110A1 Inter-network and inter-protocol video conference privacy method, apparatus, and computer program product 有权
标题翻译：互联网和协议间视频会议隐私方法，设备和计算机程序产品
公开(公告)号：US20040168110A1
公开(公告)日：2004-08-26
申请号：US10699850
申请日：2003-11-04
申请人： Tandberg Telecom AS
发明人： Arild Fuldseth , Tom-Ivar Johansen , Andreas Kaljord , Steinar Midtskogen
IPC分类号： H02H003/05 , H04N007/12 , H04L001/00 , H04N011/04 , H04N011/02 , H04B001/66 , G01R031/08 , G08C015/00 , H04L001/22 , H04B001/74 , H04L012/26 , H04J003/14 , H04J001/16 , G06F011/00 , H03K019/003 , H05K010/00
CPC分类号： H04N7/15 , H04L9/083 , H04L9/0841 , H04L9/12 , H04L63/0428 , H04L2209/30 , H04L2209/56 , H04L2209/80 , H04L2463/062 , H04N19/61 , H04N19/895
摘要： A system, apparatus, method, and computer program product for detecting and correcting packet losses that adversely affect video quality. This packet loss feature may be employed as part of the secure video conference system, method and computer program product, or be employed in a non-secure system, method and computer program product.
摘要翻译：一种用于检测和校正对视频质量有不利影响的分组丢失的系统，装置，方法和计算机程序产品。该分组丢失特征可以被用作安全视频会议系统，方法和计算机程序产品的一部分，或者可以用在非安全系统，方法和计算机程序产品中。

150. 发明申请

US20040150712A1 Inter-network and inter-protocol video conference privacy method, apparatus, and computer program product 有权
标题翻译：互联网和协议间视频会议隐私方法，设备和计算机程序产品
公开(公告)号：US20040150712A1
公开(公告)日：2004-08-05
申请号：US10699849
申请日：2003-11-04
申请人： Tandberg Telecom AS
发明人： Thierry Le Pennec
IPC分类号： H04N007/14
CPC分类号： H04N21/64707 , H04N7/152 , H04N21/2347 , H04N21/4405 , H04N21/4408 , H04N21/4788
摘要： A system, apparatus, method, and computer program product for establishing secure videoconferences between multiple nodes communicating via two or more transport protocols in which at least one encryption protocol is used.
摘要翻译：一种用于在通过使用至少一个加密协议的两个或多个传输协议进行通信的多个节点之间建立安全视频会议的系统，装置，方法和计算机程序产品。

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