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1. 发明申请

US20100239000A1 Camera Coupled Reference Frame 有权
标题翻译：相机耦合参考框架
公开(公告)号：US20100239000A1
公开(公告)日：2010-09-23
申请号：US12407907
申请日：2009-03-20
申请人： Alan J. MacDonald , J. William Mauchly , David W. Sowa
发明人： Alan J. MacDonald , J. William Mauchly , David W. Sowa
IPC分类号： H04N7/32
CPC分类号： H04N19/58
摘要： Techniques are provided for managing long-term reference frames (LTRFs) for two or more video sources. A first video source is selected from a plurality of video sources. The first video source is encoded to produce an encoded video stream, where a reference frame message identifies a recent video frame as long-term reference frame (LTRF) associated with the first video stream. The process is repeated for other video streams. The LTRF associated with the first video stream is used as a reference for temporal predictive coding upon receiving a signal that the first video source has been re-selected.
摘要翻译：提供了用于管理两个或多个视频源的长期参考帧（LTRF）的技术。从多个视频源中选择第一视频源。第一视频源被编码以产生编码视频流，其中参考帧消息将最近的视频帧标识为与第一视频流相关联的长期参考帧（LTRF）。对其他视频流重复该过程。与第一视频流相关联的LTRF在接收到已经重新选择第一视频源的信号时用作时间预测编码的参考。

2. 发明申请

US20090244257A1 VIRTUAL ROUND-TABLE VIDEOCONFERENCE 有权
标题翻译：虚拟环形视频会议
公开(公告)号：US20090244257A1
公开(公告)日：2009-10-01
申请号：US12055861
申请日：2008-03-26
申请人： Alan J. MacDonald , J. William Mauchly , David W. Sowa , Joseph T. Friel
发明人： Alan J. MacDonald , J. William Mauchly , David W. Sowa , Joseph T. Friel
IPC分类号： H04N7/14 , H04R5/00
CPC分类号： H04N7/15 , H04N7/142 , H04N7/181
摘要： A system and method for creating a virtual round table videoconference is described. An embodiment of the system comprises a plurality of displays arranged in an arc configuration with a table to create a virtual round table. Cameras are arranged around the plurality of displays such that when a participant looks at a display with an image of a remote participant, the camera associated with the display captures an image of the participant's gaze, making eye contact with the camera. The image is displayed at the remote participant's endpoint creating the effect of eye contact between the participants. In another embodiment, audio speakers are arranged to provide directional sound such that the video source for a display and the audio source for the associated speaker are from the same endpoint.
摘要翻译：描述了用于创建虚拟圆桌视频会议的系统和方法。系统的一个实施例包括以弧形配置布置的多个显示器，用于创建虚拟圆桌。摄像机被布置在多个显示器周围，使得当参与者用远程参与者的图像观看显示器时，与显示器相关联的相机捕获参与者的注视的图像，与相机进行目标接触。图像显示在远程参与者的端点处，从而创建参与者之间的眼神接触的效果。在另一个实施例中，音频扬声器被布置成提供定向声音，使得用于显示器的视频源和相关联的扬声器的音频源来自相同的端点。

3. 发明授权

US08340180B2 Camera coupled reference frame 有权
标题翻译：相机耦合参考系
公开(公告)号：US08340180B2
公开(公告)日：2012-12-25
申请号：US12407907
申请日：2009-03-20
申请人： Alan J. MacDonald , J. William Mauchly , David W. Sowa
发明人： Alan J. MacDonald , J. William Mauchly , David W. Sowa
IPC分类号： H04N11/04
CPC分类号： H04N19/58
摘要： Techniques are provided for managing long-term reference frames (LTRFs) for two or more video sources. A first video source is selected from a plurality of video sources. The first video source is encoded to produce an encoded video stream, where a reference frame message identifies a recent video frame as long-term reference frame (LTRF) associated with the first video stream. The process is repeated for other video streams. The LTRF associated with the first video stream is used as a reference for temporal predictive coding upon receiving a signal that the first video source has been re-selected.
摘要翻译：提供了用于管理两个或多个视频源的长期参考帧（LTRF）的技术。从多个视频源中选择第一视频源。第一视频源被编码以产生编码视频流，其中参考帧消息将最近的视频帧标识为与第一视频流相关联的长期参考帧（LTRF）。对其他视频流重复该过程。与第一视频流相关联的LTRF在接收到已经重新选择第一视频源的信号时用作时间预测编码的参考。

4. 发明授权

US08629893B2 Video switching without instantaneous decoder refresh-frames 有权
标题翻译：视频切换无即时解码刷新帧
公开(公告)号：US08629893B2
公开(公告)日：2014-01-14
申请号：US12061178
申请日：2008-04-02
申请人： Joseph T. Friel , Maurice J. Buttimer , Alan J. MacDonald , Michael A. Arnao , Andrew P. Weir , David W. Sowa , J. William Mauchly
发明人： Joseph T. Friel , Maurice J. Buttimer , Alan J. MacDonald , Michael A. Arnao , Andrew P. Weir , David W. Sowa , J. William Mauchly
IPC分类号： H04N7/14
CPC分类号： H04N21/23424 , H04N7/15 , H04N19/105 , H04N19/166 , H04N19/172 , H04N19/46 , H04N19/58 , H04N19/61 , H04N19/89 , H04N21/44016
摘要： A system and method for reducing blurred video caused by intra-coded IDR-frames sent in response to when a destination endpoint in a multipoint videoconference switches to a new video source. An embodiment according to the invention comprises using inter-coded temporal predictive referencing a long term reference frame (LTRF) instead of IDR-frames in a multipoint videoconference system.
摘要翻译：响应于多点视频会议中的目的地端点何时切换到新的视频源而发送的由帧内编码的IDR帧引起的模糊视频的系统和方法。根据本发明的实施例包括在多点视频会议系统中使用代替IDR帧的帧间编码时间预测参考长期参考帧（LTRF）。

5. 发明授权

US08319819B2 Virtual round-table videoconference 有权
标题翻译：虚拟圆桌视频会议
公开(公告)号：US08319819B2
公开(公告)日：2012-11-27
申请号：US12055861
申请日：2008-03-26
申请人： Alan J. MacDonald , J. William Mauchly , David W. Sowa , Joseph T. Friel
发明人： Alan J. MacDonald , J. William Mauchly , David W. Sowa , Joseph T. Friel
IPC分类号： H04N7/14
CPC分类号： H04N7/15 , H04N7/142 , H04N7/181
摘要： A system and method for creating a virtual round table videoconference is described. An embodiment of the system comprises a plurality of displays arranged in an arc configuration with a table to create a virtual round table. Cameras are arranged around the plurality of displays such that when a participant looks at a display with an image of a remote participant, the camera associated with the display captures an image of the participant's gaze, making eye contact with the camera. The image is displayed at the remote participant's endpoint creating the effect of eye contact between the participants. In another embodiment, audio speakers are arranged to provide directional sound such that the video source for a display and the audio source for the associated speaker are from the same endpoint.
摘要翻译：描述了用于创建虚拟圆桌视频会议的系统和方法。系统的一个实施例包括以弧形配置布置的多个显示器，用于创建虚拟圆桌。摄像机被布置在多个显示器周围，使得当参与者用远程参与者的图像观看显示器时，与显示器相关联的相机捕获参与者的注视的图像，与相机进行目标接触。图像显示在远程参与者的端点处，从而创建参与者之间的眼神接触的效果。在另一个实施例中，音频扬声器被布置成提供定向声音，使得用于显示器的视频源和相关联的扬声器的音频源来自相同的端点。

6. 发明申请

US20090251528A1 Video Switching Without Instantaneous Decoder Refresh-Frames 有权
标题翻译：视频切换无即时解码刷新帧
公开(公告)号：US20090251528A1
公开(公告)日：2009-10-08
申请号：US12061178
申请日：2008-04-02
申请人： Joseph T. Friel , Maurice J. Buttimer , Alan J. MacDonald , Michael A. Arnao , Andrew P. Weir , David W. Sowa , J. William Mauchly
发明人： Joseph T. Friel , Maurice J. Buttimer , Alan J. MacDonald , Michael A. Arnao , Andrew P. Weir , David W. Sowa , J. William Mauchly
IPC分类号： H04N7/15
CPC分类号： H04N21/23424 , H04N7/15 , H04N19/105 , H04N19/166 , H04N19/172 , H04N19/46 , H04N19/58 , H04N19/61 , H04N19/89 , H04N21/44016
摘要： A system and method for reducing blurred video caused by intra-coded IDR-frames sent in response to when a destination endpoint in a multipoint videoconference switches to a new video source. An embodiment according to the invention comprises using inter-coded temporal predictive referencing a long term reference frame (LTRF) instead of IDR-frames in a multipoint videoconference system.
摘要翻译：响应于多点视频会议中的目的地端点何时切换到新的视频源而发送的由帧内编码的IDR帧引起的模糊视频的系统和方法。根据本发明的实施例包括在多点视频会议系统中使用代替IDR帧的帧间编码时间预测参考长期参考帧（LTRF）。

7. 发明授权

US08963986B2 System and method for scaling a video presentation based on presentation complexity and room participants 有权
公开(公告)号：US08963986B2
公开(公告)日：2015-02-24
申请号：US13558813
申请日：2012-07-26
申请人： Alan J. MacDonald
发明人： Alan J. MacDonald
IPC分类号： H04N7/14
CPC分类号： H04N7/147 , G06Q10/10
摘要： A method is provided in one example embodiment and includes receiving a first presentation material for a videoconference, wherein the first presentation material is to be displayed in a display area associated with the videoconference; determining a first complexity of the first presentation material; and displaying the first presentation material on a first display based on the determined first complexity. In more particular embodiments, the method can include determining a location of a participant that will view the first presentation material; and displaying the presentation material on a second display based on the location of the participant. The location of the participant can be determined using audio data or video data.

8. 发明申请

US20140028781A1 SYSTEM AND METHOD FOR SCALING A VIDEO PRESENTATION BASED ON PRESENTATION COMPLEXITY AND ROOM PARTICIPANTS 有权
标题翻译：基于演示复杂度和室内参与者对视频演示进行缩放的系统和方法
公开(公告)号：US20140028781A1
公开(公告)日：2014-01-30
申请号：US13558813
申请日：2012-07-26
申请人： Alan J. MacDonald
发明人： Alan J. MacDonald
IPC分类号： H04N7/15
CPC分类号： H04N7/147 , G06Q10/10
摘要： A method is provided in one example embodiment and includes receiving a first presentation material for a videoconference, wherein the first presentation material is to be displayed in a display area associated with the videoconference; determining a first complexity of the first presentation material; and displaying the first presentation material on a first display based on the determined first complexity. In more particular embodiments, the method can include determining a location of a participant that will view the first presentation material; and displaying the presentation material on a second display based on the location of the participant. The location of the participant can be determined using audio data or video data.
摘要翻译：在一个示例实施例中提供了一种方法，并且包括接收用于视频会议的第一呈现材料，其中所述第一呈现材料将被显示在与所述视频会议相关联的显示区域中; 确定第一呈现材料的第一复杂性; 以及基于所确定的第一复杂度，在第一显示器上显示所述第一呈现材料。在更具体的实施例中，该方法可以包括确定将查看第一呈现材料的参与者的位置; 以及基于参与者的位置在第二显示器上显示该演示材料。可以使用音频数据或视频数据来确定参与者的位置。

9. 发明申请

US20120147125A1 SYSTEM AND METHOD FOR CONTROLLING VIDEO DATA TO BE RENDERED IN A VIDEO CONFERENCE ENVIRONMENT 有权
标题翻译：用于控制在视频会议环境中呈现的视频数据的系统和方法
公开(公告)号：US20120147125A1
公开(公告)日：2012-06-14
申请号：US12963387
申请日：2010-12-08
申请人： Alan J. MacDonald , Chris A. Dunn , Brian J. Baldino
发明人： Alan J. MacDonald , Chris A. Dunn , Brian J. Baldino
IPC分类号： H04N7/15
CPC分类号： H04N7/15
摘要： A method is provided in one example embodiment and includes establishing a video session in which a plurality of displays are used for rendering video data, and evaluating a presentation element in order to identify a control element that includes control data. The control element is included in the presentation element. The method further includes communicating at least a portion of the control data such that it can be used to determine which video data is to be rendered on the plurality of displays.
摘要翻译：在一个示例实施例中提供了一种方法，并且包括建立其中使用多个显示器来渲染视频数据的视频会话，以及评估表示元素以便识别包括控制数据的控制元素。控制元素包含在表示元素中。该方法还包括传送控制数据的至少一部分，使得其可用于确定将在多个显示器上呈现哪个视频数据。

10. 发明授权

US08553064B2 System and method for controlling video data to be rendered in a video conference environment 有权
标题翻译：用于控制在视频会议环境中呈现的视频数据的系统和方法
公开(公告)号：US08553064B2
公开(公告)日：2013-10-08
申请号：US12963387
申请日：2010-12-08
申请人： Alan J. MacDonald , Chris A. Dunn , Brian J. Baldino
发明人： Alan J. MacDonald , Chris A. Dunn , Brian J. Baldino
IPC分类号： H04N7/14
CPC分类号： H04N7/15
摘要： A method is provided in one example embodiment and includes establishing a video session in which a plurality of displays are used for rendering video data, and evaluating a presentation element in order to identify a control element that includes control data. The control element is included in the presentation element. The method further includes communicating at least a portion of the control data such that it can be used to determine which video data is to be rendered on the plurality of displays.
摘要翻译：在一个示例实施例中提供了一种方法，并且包括建立其中使用多个显示器来渲染视频数据的视频会话，以及评估表示元素以便识别包括控制数据的控制元素。控制元素包含在表示元素中。该方法还包括传送控制数据的至少一部分，使得其可用于确定将在多个显示器上呈现哪个视频数据。

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