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1. 发明授权

US08713105B2 Method and apparatus for transcoding and transrating in distributed video systems 有权
标题翻译：在分布式视频系统中转码和转换的方法和装置
公开(公告)号：US08713105B2
公开(公告)日：2014-04-29
申请号：US11324864
申请日：2006-01-03
申请人： Thiyagesan Ramalingam , Francis Paul Viggiano , Nermin Ismail , Walter Friedrich , Duanpei Wu , Shantanu Sarkar
发明人： Thiyagesan Ramalingam , Francis Paul Viggiano , Nermin Ismail , Walter Friedrich , Duanpei Wu , Shantanu Sarkar
IPC分类号： G06F15/16 , H04N7/26 , H04N7/15
CPC分类号： H04L29/06455 , H04L12/1822 , H04L12/1827 , H04N7/15 , H04N19/12 , H04N19/40
摘要： Disclosed are video conferencing systems, devices, architectures, and methods for transcoding, transrating, and the like, to facilitate video streaming in a distributed arrangement. An exemplary translator in accordance with embodiments can include: an input configured to receive a first video stream in a first format, the first video stream being from a first media switch, the first media switch being associated with a first stream group having one or more first endpoints; and an output configured to provide a second video stream in a second format, the second video stream being sent to a second media switch, the second media switch being associated with a second stream group having one or more second endpoints, whereby the translator is configured to convert from the first to the second format. Further, the translator can be configured as a logical endpoint where a first interface having an input/output pair uses the first format and a second interface having another input/output pair uses the second format. The two formats may differ in at least one characteristic.
摘要翻译：公开了用于转码，转换等的视频会议系统，设备，架构和方法，以便于分布式布置中的视频流传输。根据实施例的示例性翻译器可以包括：被配置为以第一格式接收第一视频流的输入，所述第一视频流来自第一媒体交换机，所述第一媒体交换机与具有一个或多个第一个端点; 以及被配置为以第二格式提供第二视频流的输出，所述第二视频流被发送到第二媒体交换机，所述第二媒体交换机与具有一个或多个第二端点的第二流组相关联，由此所述翻译器被配置从第一种格式转换成第二种格式。此外，翻译器可以被配置为逻辑端点，其中具有输入/输出对的第一接口使用第一格式，并且具有另一输入/输出对的第二接口使用第二格式。这两种格式在至少一个特征上可能不同。

2. 发明申请

US20070156924A1 Method and apparatus for transcoding and transrating in distributed video systems 有权
标题翻译：在分布式视频系统中转码和转换的方法和装置
公开(公告)号：US20070156924A1
公开(公告)日：2007-07-05
申请号：US11324864
申请日：2006-01-03
申请人： Thiyagesan Ramalingam , Francis Viggiano , Nermin Ismail , Walter Friedrich , Duanpei Wu , Shantanu Sarkar
发明人： Thiyagesan Ramalingam , Francis Viggiano , Nermin Ismail , Walter Friedrich , Duanpei Wu , Shantanu Sarkar
IPC分类号： G06F15/16
CPC分类号： H04L29/06455 , H04L12/1822 , H04L12/1827 , H04N7/15 , H04N19/12 , H04N19/40
摘要： Disclosed are video conferencing systems, devices, architectures, and methods for transcoding, transrating, and the like, to facilitate video streaming in a distributed arrangement. An exemplary translator in accordance with embodiments can include: an input configured to receive a first video stream in a first format, the first video stream being from a first media switch, the first media switch being associated with a first stream group having one or more first endpoints; and an output configured to provide a second video stream in a second format, the second video stream being sent to a second media switch, the second media switch being associated with a second stream group having one or more second endpoints, whereby the translator is configured to convert from the first to the second format. Further, the translator can be configured as a logical endpoint where a first interface having an input/output pair uses the first format and a second interface having another input/output pair uses the second format. The two formats may differ in at least one characteristic.
摘要翻译：公开了用于转码，转换等的视频会议系统，设备，架构和方法，以便于分布式布置中的视频流传输。根据实施例的示例性翻译器可以包括：被配置为以第一格式接收第一视频流的输入，所述第一视频流来自第一媒体交换机，所述第一媒体交换机与具有一个或多个第一个端点; 以及被配置为以第二格式提供第二视频流的输出，所述第二视频流被发送到第二媒体交换机，所述第二媒体交换机与具有一个或多个第二端点的第二流组相关联，由此所述翻译器被配置从第一种格式转换成第二种格式。此外，翻译器可以被配置为逻辑端点，其中具有输入/输出对的第一接口使用第一格式，并且具有另一输入/输出对的第二接口使用第二格式。这两种格式在至少一个特征上可能不同。

3. 发明申请

US20070153712A1 Method and architecture for distributed video switching using media notifications 有权
标题翻译：使用媒体通知进行分布式视频切换的方法和架构
公开(公告)号：US20070153712A1
公开(公告)日：2007-07-05
申请号：US11327541
申请日：2006-01-05
申请人： Steven Fry , Thiyagesan Ramalingam , Nermin Ismail , Walter Friedrich , Duanpei Wu
发明人： Steven Fry , Thiyagesan Ramalingam , Nermin Ismail , Walter Friedrich , Duanpei Wu
IPC分类号： H04L12/16
CPC分类号： H04L29/06027 , H04L49/355 , H04L65/4046 , H04L65/607 , H04N7/152
摘要： Disclosed are video conferencing systems, devices, architectures, and methods for using media notifications to coordinate switching between video in a distributed arrangement. An exemplary media switch in accordance with embodiments can include: a first interface configured for a first type communication with an endpoint; a second interface configured for the first type communication with another media switch, the second interface being configured to receive a first video stream having a first characteristic and a second video stream having a second characteristic; a third interface configured for a second type communication with a stream controller, the stream controller being configured to provide a notification; and a fourth interface configured for the second type communication with a controlling server, whereby the media switch is configured to re-target an active stream in response to the notification or a difference between the first and second characteristics.
摘要翻译：公开了用于使用媒体通知来协调分布式布置中的视频之间的切换的视频会议系统，设备，架构和方法。根据实施例的示例性媒体交换机可以包括：被配置用于与端点进行第一类型通信的第一接口; 第二接口，被配置用于与另一媒体交换机的第一类型通信，所述第二接口被配置为接收具有第一特征的第一视频流和具有第二特征的第二视频流; 配置用于与流控制器的第二类型通信的第三接口，所述流控制器被配置为提供通知; 以及配置用于与控制服务器的第二类型通信的第四接口，由此媒体交换机被配置为响应于该通知或第一和第二特性之间的差异而重新定位活动流。

4. 发明授权

US07929012B2 Method and architecture for distributed video switching using media notifications 有权
标题翻译：使用媒体通知进行分布式视频切换的方法和架构
公开(公告)号：US07929012B2
公开(公告)日：2011-04-19
申请号：US11327541
申请日：2006-01-05
申请人： Steven G. Fry , Thiyagesan Ramalingam , Nermin Ismail , Walter Friedrich , Duanpei Wu
发明人： Steven G. Fry , Thiyagesan Ramalingam , Nermin Ismail , Walter Friedrich , Duanpei Wu
IPC分类号： H04N7/15
CPC分类号： H04L29/06027 , H04L49/355 , H04L65/4046 , H04L65/607 , H04N7/152
摘要： Disclosed are video conferencing systems, devices, architectures, and methods for using media notifications to coordinate switching between video in a distributed arrangement. An exemplary media switch in accordance with embodiments can include: a first interface configured for a first type communication with an endpoint; a second interface configured for the first type communication with another media switch, the second interface being configured to receive a first video stream having a first characteristic and a second video stream having a second characteristic; a third interface configured for a second type communication with a stream controller, the stream controller being configured to provide a notification; and a fourth interface configured for the second type communication with a controlling server, whereby the media switch is configured to re-target an active stream in response to the notification or a difference between the first and second characteristics.
摘要翻译：公开了用于使用媒体通知来协调分布式布置中的视频之间的切换的视频会议系统，设备，架构和方法。根据实施例的示例性媒体交换机可以包括：被配置用于与端点进行第一类型通信的第一接口; 第二接口，被配置用于与另一媒体交换机的第一类型通信，所述第二接口被配置为接收具有第一特征的第一视频流和具有第二特征的第二视频流; 配置用于与流控制器的第二类型通信的第三接口，所述流控制器被配置为提供通知; 以及配置用于与控制服务器的第二类型通信的第四接口，由此媒体交换机被配置为响应于该通知或第一和第二特性之间的差异而重新定位活动流。

5. 发明申请

US20050078171A1 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：US20050078171A1
公开(公告)日：2005-04-14
申请号：US10703859
申请日：2003-11-06
申请人： Scott Firestone , Walter Friedrich , Nermin Ismail , Keith Lantz , Shantanu Sarkar , Luke Surazski , Duanpei Wu
发明人： Scott Firestone , Walter Friedrich , Nermin Ismail , Keith Lantz , Shantanu Sarkar , Luke Surazski , Duanpei Wu
IPC分类号： H04N7/15 , 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. 发明申请

US20080068449A1 METHOD AND APPARATUS FOR USING FAR END CAMERA CONTROL (FECC) MESSAGES TO IMPLEMENT PARTICIPANT AND LAYOUT SELECTION IN A MULTIPOINT VIDEOCONFERENCE 有权
标题翻译：使用终端相机控制（FECC）消息在多点视频中实现参与者和布局选择的方法和装置
公开(公告)号：US20080068449A1
公开(公告)日：2008-03-20
申请号：US11948031
申请日：2007-11-30
申请人： Duanpei Wu , Nermin Ismail , Shantanu Sarkar , Walter Friedrich
发明人： Duanpei Wu , Nermin Ismail , Shantanu Sarkar , Walter Friedrich
IPC分类号： H04N7/14
CPC分类号： H04N7/152
摘要： A method, an apparatus and a medium encoded with instructions for providing layout selection, participant selection, and/or participant-to-participant far end camera control of the selected participant for use in a continuous presence multipoint videoconference. The method includes receiving one or more far end camera control messages over a packet network from a first participant of a multipoint videoconference; maintaining an indication of a far end camera control mode for the first participant, the mode being one of a set of modes; and depending on the far end camera control mode and on controls possible, carrying out a control according to one ore more the camera control messages.
摘要翻译：一种编码有指令的方法，装置和介质，所述指令用于提供所选参与者的布局选择，参与者选择和/或参与者至参与者远端相机控制，以用于连续存在多点视频会议。该方法包括从多点视频会议的第一参与者通过分组网络接收一个或多个远端相机控制消息; 保持第一参与者的远端相机控制模式的指示，该模式是一组模式之一; 并且根据远端摄像机控制模式和可控的控制方式，根据摄像机控制消息一次进行控制。

7. 发明申请

US20050078170A1 System and method for performing distributed video conferencing 有权
公开(公告)号：US20050078170A1
公开(公告)日：2005-04-14
申请号：US10680918
申请日：2003-10-08
申请人： Scott Firestone , Walter Friedrich , Nermin Ismail , Keith Lantz , Shantanu Sarkar , Luke Surazski , Duanpei Wu
发明人： Scott Firestone , Walter Friedrich , Nermin Ismail , Keith Lantz , Shantanu Sarkar , Luke Surazski , Duanpei Wu
IPC分类号： H04N7/15 , 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.

8. 发明申请

US20050248652A1 System and method for performing distributed video conferencing 有权
公开(公告)号：US20050248652A1
公开(公告)日：2005-11-10
申请号：US11180826
申请日：2005-07-12
申请人： Scott Firestone , Walter Friedrich , Nermin Ismail , Keith Lantz , Shantanu Sarkar , Luke Surazski , Duanpei Wu
发明人： Scott Firestone , Walter Friedrich , Nermin Ismail , Keith Lantz , Shantanu Sarkar , Luke Surazski , Duanpei Wu
IPC分类号： H04N7/15 , H04N7/14
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.

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