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    • 94. 发明授权
    • Automatic audio priority designation during conference
    • 会议期间自动音频优先级指定
    • US08447023B2
    • 2013-05-21
    • US12697844
    • 2010-02-01
    • Alain NimriRick Flott
    • Alain NimriRick Flott
    • H04M3/42
    • G10L21/00H04M3/42H04N7/15
    • During a conference, a multipoint control unit (MCU) designates priority and non-priority endpoints. The MCU forms priority audio from the priority endpoint and sends that audio to the other endpoints at a normal level. However, the MCU forms non-priority audio from the non-priority endpoint and handles that audio based on whether the input audio from the priority endpoint is from speaking or not. If the priority endpoint's audio indicates a participant at that endpoint is speaking, then the MCU sends the non-priority audio to the other endpoints at a reduced level. Designation of which endpoint has priority can be based on which endpoint has a current duration of audio indicative of speech that is longer than other endpoints. Alternatively, the designation can be based on which endpoint is currently presenting content during the conference or based on a mix of speech audio and content presentation.
    • 在会议期间,多点控制单元(MCU)指定优先级和非优先级端点。 MCU从优先级端点构成优先音频,并将该音频发送到正常级别的其他端点。 然而,MCU从非优先级终端形成非优先级音频,并且基于来自优先级端点的输入音频是否来自不同语言来处理该音频。 如果优先级端点的音频指示该端点的参与者正在说话,则MCU以降低的级别将非优先级音频发送到其他端点。 哪个端点具有优先权的指定可以基于哪个端点具有指示语音的当前持续时间长于其他端点。 或者,该指定可以基于在会议期间当前呈现内容的哪个端点或者基于语音音频和内容呈现的混合。
    • 95. 发明授权
    • Framework for graphics animation and compositing operations
    • 图形动画和合成操作框架
    • US08446415B2
    • 2013-05-21
    • US13367751
    • 2012-02-07
    • Ralph BrunnerJohn HarperPeter N. Graffagnino
    • Ralph BrunnerJohn HarperPeter N. Graffagnino
    • G06T13/00
    • G06T13/00G06T15/00
    • A framework for performing graphics animation and compositing operations has a layer tree for interfacing with the application and a render tree for interfacing with a render engine. Layers in the layer tree can be content, windows, views, video, images, text, media, or any other type of object for a user interface of an application. The application commits change to the state of the layers of the layer tree. The application does not need to include explicit code for animating the changes to the layers. Instead, an animation is determined for animating the change in state. The determined animation is explicitly applied to the affected layers in the render tree. A render engine renders from the render tree into a frame buffer for display on the processing device. Those portions of the render tree that have changed relative to prior versions can be tracked to improve resource management.
    • 用于执行图形动画和合成操作的框架具有用于与应用接口的层树和用于与渲染引擎接口的渲染树。 层树中的层可以是应用的用户界面的内容,窗口,视图,视频,图像,文本,媒体或任何其他类型的对象。 应用程序将更改为层树的层的状态。 该应用程序不需要包含用于动画化图层的更改的显式代码。 相反,确定动画来动画状态的变化。 确定的动画显式应用于渲染树中的受影响的图层。 渲染引擎从渲染树呈现到用于在处理设备上显示的帧缓冲器。 渲染树中相对于先前版本更改的那些部分可以被跟踪,以改进资源管理。
    • 96. 发明授权
    • Distributed audio signal processing system
    • 分布式音频信号处理系统
    • US08422701B2
    • 2013-04-16
    • US12136654
    • 2008-06-10
    • James Steven JoinerMichael August PocinoScott David Orangio
    • James Steven JoinerMichael August PocinoScott David Orangio
    • H04B1/00
    • H04M3/56
    • A distributed audio signal processing system having a plurality of linked audio signal processing units is disclosed. Each audio signal processing unit has physical channels for receiving and sending local audio signals and a high bandwidth interface for exchanging audio signals with other linked audio signal processing units. Each of the physical channels of each of the audio signal processing units are mapped to a corresponding global channel. The audio signal processing system provides a tightly integrated, distributed signal processing matrix where any input signal or physical channel on any one of the signal processing units can be exchanged with any other of the linked audio signal processing units, thereby providing maximum flexibility for selecting signals to mix and determining how to process the signals.
    • 公开了具有多个链接的音频信号处理单元的分布式音频信号处理系统。 每个音频信号处理单元具有用于接收和发送本地音频信号的物理信道和用于与其他链接的音频信号处理单元交换音频信号的高带宽接口。 每个音频信号处理单元的每个物理信道被映射到对应的全局信道。 音频信号处理系统提供紧密集成的分布式信号处理矩阵,其中信号处理单元中的任何一个上的任何输入信号或物理信道可与所链接的音频信号处理单元中的任何其它信号交换,从而为选择信号提供最大的灵活性 混合和确定如何处理信号。
    • 98. 发明授权
    • Automatic focus system calibration for image capture systems
    • 图像采集系统的自动对焦系统校准
    • US08416317B2
    • 2013-04-09
    • US12503095
    • 2009-07-15
    • Russell J. Palum
    • Russell J. Palum
    • H04N9/73H04N5/76G03B13/00
    • H04N5/23212
    • Imaging systems and methods for calibrating imaging systems are provided. The imaging system has a body, a scene image capture system that captures images using a taking lens system that can be set to a plurality of different focus distances, and a rangefinder that is capable of determining a distance between the imaging system and at least one portion of a field of view of the talking lens system. The method comprises: automatically capturing a first calibration image of a first field of view through the taking lens system with the taking lens system set to a first focus distance setting; identifying a portion of the first calibration image having a predetermined degree of focus; using the rangefinder to determine a first calibration distance from the imaging device to the identified portion. A focus correlation is determined based upon the first calibration distance and the first focus distance setting.
    • 提供了用于校准成像系统的成像系统和方法。 成像系统具有身体,场景图像拍摄系统,其使用可被设置为多个不同焦距的拍摄镜头系统拍摄图像;以及测距器,其能够确定成像系统与至少一个 说话透镜系统的视野的一部分。 该方法包括:通过拍摄镜头系统自动拍摄第一视野的第一校准图像,其中拍摄镜头系统设置为第一对焦距离设置; 识别具有预定焦度的第一校准图像的一部分; 使用测距仪确定从成像装置到识别部分的第一校准距离。 基于第一校准距离和第一焦点距离设置来确定聚焦相关性。