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1. 发明授权

US07477282B2 System and method for performing distributed video conferencing 有权
标题翻译：用于执行分布式视频会议的系统和方法
公开(公告)号：US07477282B2
公开(公告)日：2009-01-13
申请号：US11180826
申请日：2005-07-12
申请人： Scott S. Firestone , Walter R. Friedrich , Nermin M. Ismail , Keith A. Lantz , Shantanu Sarkar , Luke K. Surazski , Duanpei Wu
发明人： Scott S. Firestone , Walter R. Friedrich , Nermin M. Ismail , Keith A. Lantz , Shantanu Sarkar , Luke K. Surazski , Duanpei Wu
IPC分类号： H04N7/14 , H04M3/42
CPC分类号： H04L65/605 , H04L12/1822 , H04L65/4046 , H04M3/567 , H04N7/15 , H04N7/152
摘要： A method for executing a video conference is provided that includes receiving one or more audio streams associated with a video conference from one or more end points and determining an active speaker associated with one of the end points. Audio information associated with the active speaker may be received at one or more media switches. One or more video streams may be suppressed except for a selected video stream associated with the active speaker, the selected video stream propagating to one or more of the media switches during the video conference. The selected video stream may be replicated such that it may be communicated to one or more of the end points associated with a selected one of the media switches.
摘要翻译：提供一种用于执行视频会议的方法，其包括从一个或多个端点接收与视频会议相关联的一个或多个音频流，并且确定与所述终点中的一个相关联的活动扬声器。可以在一个或多个媒体交换机处接收与主动扬声器相关联的音频信息。除了与活动扬声器相关联的所选视频流之外，可以抑制一个或多个视频流，所选择的视频流在视频会议期间传播到一个或多个媒体交换机。可以复制所选择的视频流，使得其可以被传送到与所选择的一个媒体交换机相关联的一个或多个终点。

2. 发明授权

US08614732B2 System and method for performing distributed multipoint video conferencing 有权
标题翻译：执行分布式多点视频会议的系统和方法
公开(公告)号：US08614732B2
公开(公告)日：2013-12-24
申请号：US11210325
申请日：2005-08-24
申请人： Randall B. Baird , Scott S. Firestone , Luke K. Surazski , Duanpei Wu
发明人： Randall B. Baird , Scott S. Firestone , Luke K. Surazski , Duanpei Wu
IPC分类号： H04N7/15
CPC分类号： H04N7/15 , H04N7/152
摘要： According to an embodiment of the present invention, an apparatus for performing video conferencing is provided that includes an I-frame injector element operable to intercept I-frame requests from one or more end points and to attempt to service the I-frame requests such that at least a portion of the requests are prevented from propagating back to an originating sender. In more specific embodiments, when a receiver endpoint sends a fast video update (FVU) request upstream, it is intercepted by the I-frame injector element and rather than passing the FVU request to the sender the I-frame injector element replaces a next P-frame from the sender with an I-frame, whereby the I-frame is constructed so that when decoded, it matches the P-frame that it replaced. In still more detailed embodiments, the I-frame injector element operates in one of three modes that are associated with bandwidth parameters.
摘要翻译：根据本发明的实施例，提供了一种用于执行视频会议的装置，其包括I帧注入器元件，其可操作以截取来自一个或多个端点的I帧请求并尝试对I帧请求进行服务，使得至少一部分请求被阻止传播回始发端。在更具体的实施例中，当接收机端点在上游发送快速视频更新（FVU）请求时，它被I帧注入器元件拦截，而不是将FVU请求传递给发送器，I帧注入器元件替换下一个P - 帧从具有I帧的发送器发送，由此构造I帧，使得当被解码时，它与其所取代的P帧匹配。在更详细的实施例中，I帧注入器元件以与带宽参数相关联的三种模式之一操作。

3. 发明授权

US07084898B1 System and method for providing video conferencing synchronization 有权
标题翻译：用于提供视频会议同步的系统和方法
公开(公告)号：US07084898B1
公开(公告)日：2006-08-01
申请号：US10715687
申请日：2003-11-18
申请人： Scott S. Firestone , Walter R. Friedrich , Nermin M. Ismail , Keith A. Lantz , Shantanu Sarkar , Luke K. Surazski , Duanpei Wu
发明人： Scott S. Firestone , Walter R. Friedrich , Nermin M. Ismail , Keith A. Lantz , Shantanu Sarkar , Luke K. Surazski , Duanpei Wu
IPC分类号： H04N7/14
CPC分类号： H04N7/152
摘要： An audio mixer on a first device receives one or more incoming audio streams. Each of the one or more incoming audio streams has an associated timestamp. The audio mixer generates a mixed audio stream from the one or more incoming audio streams. The audio mixer determines differences in the time base of each of the one or more incoming audio streams and the time base for the mixed audio stream. The audio mixer generates mapping parameters associated with the determined differences and transforms the timestamp of each of the one or more incoming audio streams to a corresponding output timestamp associated with the mixed audio stream according to the mapping parameters. the mapping parameters are provided to a video mixer for similar processing and transformation such that the mixed audio stream is in synchronization with a mixed video stream.
摘要翻译：第一设备上的音频混合器接收一个或多个输入音频流。一个或多个输入音频流中的每一个具有关联的时间戳。音频混合器从一个或多个输入音频流产生混合音频流。音频混合器确定一个或多个输入音频流中的每一个的时基和混合音频流的时基的差异。音频混合器产生与确定的差异相关联的映射参数，并且根据映射参数将一个或多个输入音频流中的每一个的时间戳转换为与混合音频流相关联的对应输出时间戳。将映射参数提供给用于类似处理和变换的视频混合器，使得混合音频流与混合视频流同步。

4. 发明授权

US06989856B2 System and method for performing distributed video conferencing 有权
公开(公告)号：US06989856B2
公开(公告)日：2006-01-24
申请号：US10703859
申请日：2003-11-06
申请人： Scott S. Firestone , Walter R. Friedrich , Nermin M. Ismail , Keith A. Lantz , Shantanu Sarkar , Luke K. Surazski , Duanpei Wu
发明人： Scott S. Firestone , Walter R. Friedrich , Nermin M. Ismail , Keith A. Lantz , Shantanu Sarkar , Luke K. Surazski , Duanpei Wu
IPC分类号： H04N7/14
CPC分类号： H04N7/14 , H04L12/1822 , H04L65/4046 , H04L65/605 , H04M3/567 , H04M2207/20 , H04N7/15
摘要： A method for executing a video conference is provided that includes receiving one or more audio streams associated with a video conference from one or more end points and determining an active speaker associated with one of the end points. Audio information associated with the active speaker may be received at one or more media switches. One or more video streams may be suppressed except for a selected video stream associated with the active speaker, the selected video stream propagating to one or more of the media switches during the video conference. The selected video stream may be replicated such that it may be communicated to one or more of the end points associated with a selected one of the media switches.

5. 发明授权

US08659636B2 System and method for performing distributed video conferencing 有权
标题翻译：用于执行分布式视频会议的系统和方法
公开(公告)号：US08659636B2
公开(公告)日：2014-02-25
申请号：US10680918
申请日：2003-10-08
申请人： Scott S. Firestone , Walter R. Friedrich , Nermin M. Ismail , Keith A. Lantz , Shantanu Sarkar , Luke K. Surazski , Duanpei Wu
发明人： Scott S. Firestone , Walter R. Friedrich , Nermin M. Ismail , Keith A. Lantz , Shantanu Sarkar , Luke K. Surazski , Duanpei Wu
IPC分类号： H04N7/14
CPC分类号： H04N7/14 , H04L12/1822 , H04L65/4046 , H04L65/605 , H04M3/567 , H04M2207/20 , H04N7/15
摘要： A method for executing a video conference is provided that includes receiving one or more audio streams associated with a video conference from one or more end points and determining an active speaker associated with one of the end points. Audio information associated with the active speaker may be received at one or more media switches. One or more video streams may be suppressed except for a selected video stream associated with the active speaker, the selected video stream propagating to one or more of the media switches during the video conference. The selected video stream may be replicated such that it may be communicated to one or more of the end points associated with a selected one of the media switches.
摘要翻译：提供一种用于执行视频会议的方法，其包括从一个或多个端点接收与视频会议相关联的一个或多个音频流，并且确定与所述终点中的一个相关联的活动扬声器。可以在一个或多个媒体交换机处接收与主动扬声器相关联的音频信息。除了与活动扬声器相关联的所选视频流之外，可以抑制一个或多个视频流，所选择的视频流在视频会议期间传播到一个或多个媒体交换机。可以复制所选择的视频流，使得其可以被传送到与所选择的一个媒体交换机相关联的一个或多个终点。

6. 发明授权

US08340078B1 System for concealing missing audio waveforms 有权
标题翻译：隐藏丢失音频波形的系统
公开(公告)号：US08340078B1
公开(公告)日：2012-12-25
申请号：US11644062
申请日：2006-12-21
申请人： Duanpei Wu , Luke K. Surazski
发明人： Duanpei Wu , Luke K. Surazski
IPC分类号： H04L12/66 , G10L11/04 , G10L11/06
CPC分类号： G10L25/90 , G10L19/005 , G10L21/047
摘要： In one embodiment, a method can include: (i) establishing an internet protocol (IP) connection; (ii) forming a buffered version of a plurality of voice frame slices from received audio packets; and (iii) when an erasure is detected, performing a packet loss concealment (PLC) to provide a synthesized speech signal for the erasure, where the PLC can include: (a) identifying first and second pitches from the buffered version of the plurality of voice frame slices; and (b) forming the synthesized speech signal by using the first and second pitches, and more if needed, followed by an overlay-add (OLA).
摘要翻译：在一个实施例中，一种方法可以包括：（i）建立因特网协议（IP）连接; （ii）从接收到的音频分组形成多个语音帧片段的缓冲版本; 和（iii）当检测到擦除时，执行分组丢失隐藏（PLC）以提供用于擦除的合成语音信号，其中PLC可以包括：（a）从缓冲版本中识别第一和第二间距语音片段; 和（b）通过使用第一和第二音调形成合成的语音信号，如果需要，则更多，然后是叠加（OLA）。

7. 发明授权

US08732314B2 Generation of contact information based on associating browsed content to user actions 有权
标题翻译：基于将浏览的内容与用户操作相关联来生成联系人信息
公开(公告)号：US08732314B2
公开(公告)日：2014-05-20
申请号：US11506867
申请日：2006-08-21
申请人： Luke K. Surazski , John Toebes
发明人： Luke K. Surazski , John Toebes
IPC分类号： G06F15/16 , G06F15/173
CPC分类号： H04L67/22 , H04L67/02 , H04L67/28 , H04L67/2838
摘要： A customer premises router identifies contacts based on web sites visited and searches conducted by a user device. The customer premises router also detects phone calls initiated by a user device (e.g., a Voice over IP telephony device), and identifies an association between a phone call to an identified called destination (e.g., a destination telephone number) and an identified contact, based on a prescribed association attribute. The identified associations are stored in nonvolatile memory. Any subsequent web request by a user device and related to the contact causes the customer premises router to supply to the user device the identified association specifying the contact and the identified called destination, enabling a user of the user device to determine the identified called destination for the contact, even if the visited web sites do not provide the identified called destination.
摘要翻译：客户驻地路由器根据访问的网站和用户设备进行的搜索识别联系人。客户驻地路由器还检测由用户设备（例如，IP语音电话设备）发起的电话呼叫，并且识别对所识别的被叫目的地（例如，目的地电话号码）的电话呼叫与所识别的联系人之间的关联，基于规定的关联属性。所识别的关联存储在非易失性存储器中。用户设备和与该联系人相关的任何后续网络请求使得客户驻地路由器向用户设备提供指定联系人和所识别的被叫目的地的所识别的关联，使得用户设备的用户能够确定所识别的被呼叫目的地联系人，即使访问的网站不提供所标识的被叫目的地。

8. 发明授权

US07023971B1 Method and system for call answer while connected to voice mail 有权
标题翻译：连接语音信箱时呼叫应答的方法和系统
公开(公告)号：US07023971B1
公开(公告)日：2006-04-04
申请号：US09703341
申请日：2000-10-31
申请人： Pascal H. Huart , Luke K. Surazski
发明人： Pascal H. Huart , Luke K. Surazski
IPC分类号： H04M11/00
CPC分类号： H04M3/53366 , H04M3/428 , H04M7/006
摘要： A method and system for call answer while connected to voice mail includes generating real-time packets for transmission of a message toward a voice mail system. Generation of the real-time packets is interrupted upon a call answer by a party generating the message. Generation of the real-time packets for transmission of the message toward the voice mail system is resumed after a delay associated with the call answer. An indication is provided to the voice mail system that the real-time packets generated subsequent to the delay follow the real-time packets generated prior to the delay in the message by a time amount less than the delay.
摘要翻译：一种连接语音邮件的呼叫应答方法和系统包括生成用于向语音信箱系统发送消息的实时数据包。通过生成消息的一方的呼叫应答来中断实时分组的生成。在与呼叫应答相关联的延迟之后，恢复生成用于向语音邮件系统发送消息的实时分组。向话音邮件系统提供指示，在延迟之后生成的实时分组遵循在消息中延迟之前生成的实时分组小于延迟的时间量。

9. 发明授权

US08102766B2 Method and system for managing time-sensitive packetized data streams at a receiver 有权
标题翻译：用于在接收机处管理时间敏感的分组化数据流的方法和系统
公开(公告)号：US08102766B2
公开(公告)日：2012-01-24
申请号：US11555752
申请日：2006-11-02
申请人： Paul S. Hahn , Michael E. Knappe , Richard A. Dunlap , Luke K. Surazski
发明人： Paul S. Hahn , Michael E. Knappe , Richard A. Dunlap , Luke K. Surazski
IPC分类号： H04J3/14 , H04Q11/04 , G10L11/06 , G10L21/00
CPC分类号： H04J3/0632 , H04Q2213/13034 , H04Q2213/13389
摘要： According to one embodiment of the invention, a method for managing time-sensitive packetized data streams at a receiver includes receiving a time-sensitive packet of a data stream, analyzing an energy level of a payload signal of the packet, and determining whether to drop the packet based on the energy level of the payload signal.
摘要翻译：根据本发明的一个实施例，一种用于在接收机处理时间敏感分组化数据流的方法包括：接收数据流的时间敏感分组，分析分组的有效载荷信号的能级，并确定是否丢弃该分组基于有效载荷信号的能级。

10. 发明申请

US20080165707A1 Audio conferencing utilizing packets with unencrypted power level information 有权
标题翻译：音频会议利用具有未加密功率电平信息的数据包
公开(公告)号：US20080165707A1
公开(公告)日：2008-07-10
申请号：US11650592
申请日：2007-01-04
申请人： Randall B. Baird , Luke K. Surazski
发明人： Randall B. Baird , Luke K. Surazski
IPC分类号： H04L12/16
CPC分类号： H04M3/56 , H04L12/1827 , H04L65/4038 , H04L65/605 , H04L65/607 , H04M3/568
摘要： In one embodiment, a method that includes receiving a plurality of packet streams input from different endpoints, packets of each stream including encrypted and unencrypted portions, the unencrypted portion containing audio power level information. The audio power level information contained in the packets of each of the packet streams is then compared to select N packet streams with loudest audio. The N packet streams are then decrypted to obtain audio content, and the audio content of the N packet streams mixed to produce one or more output packet streams. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.
摘要翻译：在一个实施例中，一种方法包括接收从不同端点输入的多个分组流，包括加密和未加密部分的每个流的分组，该未加密部分包含音频功率电平信息。然后将包含在每个分组流的分组中的音频功率电平信息进行比较以选择具有最大音频的N个分组流。然后对N个分组流进行解密以获得音频内容，并且混合N个分组流的音频内容以产生一个或多个输出分组流。要强调的是，该摘要被提供以符合要求抽象的规则，允许搜索者或其他读者快速确定技术公开内容的主题。

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