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1.发明申请Reduction of Latency in Video Distribution Networks Using Adaptive Bit Rates 有权使用自适应比特率减少视频分配网络中的延迟公开(公告)号：US20120257671A1
公开(公告)日：2012-10-11
申请号：US13438617
申请日：2012-04-03
IPC分类号： H04N7/26
CPC分类号： H04N21/64753 , H04N19/115 , H04N19/164 , H04N21/64769 , H04N21/6587
摘要： Systems and methods are provided for reducing and controlling playback latency in an unmanaged, buffered data network. A delay cost function is determined, the function representing the effect of playback latency on end user experience. An encoder transmits audiovisual data through the network to a client device. Network latency is measured, and the delay cost function is evaluated to establish an encoding bitrate for the encoder. The encoding of the audiovisual data is altered in response to dynamic network conditions, thereby controlling end-to-end playback latency of the system, which is represented by the playout length of data buffered between the encoder and the client device.
摘要翻译： 提供了系统和方法，用于减少和控制非托管缓冲数据网络中的播放延迟。 确定延迟成本函数，表示播放延迟对最终用户体验的影响的功能。 编码器通过网络将视听数据发送到客户端设备。 测量网络延迟，并评估延迟成本函数以建立编码器的编码比特率。 响应于动态网络条件改变视听数据的编码，从而控制系统的端到端回放延迟，其由在编码器和客户端设备之间缓冲的数据的播出长度来表示。
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2.发明申请Providing Television Broadcasts over a Managed Network and Interactive Content over an Unmanaged Network to a Client Device 有权通过管理网络提供电视广播，并通过非托管网络将交互式内容提供给客户端设备公开(公告)号：US20100158109A1
公开(公告)日：2010-06-24
申请号：US12651203
申请日：2009-12-31
CPC分类号： H04N7/17318 , H04N19/23 , H04N19/48 , H04N19/527 , H04N21/23412 , H04N21/23424 , H04N21/2343 , H04N21/2365 , H04N21/2402 , H04N21/4316 , H04N21/4347 , H04N21/44012 , H04N21/4722 , H04N21/631 , H04N21/812 , H04N21/8173 , H04N21/8543
摘要： A client device receives a broadcast content signal containing an interactive identifier over a managed network at a client device. The interactive identifier may be a trigger that is included in a header or embedded within the digital video data. The trigger may have a temporal component, wherein the trigger can expire after a certain period of time. In response to identification of the trigger, the client device sends a user request for interactive content over an unmanaged network. For example, the managed network may be a one-way satellite television network, IP-television network or cable television network and the unmanaged network may be the Internet. The client device switches between receiving data from the managed network to receiving data from the unmanaged network.
摘要翻译： 客户端设备在客户端设备处通过受管网络接收包含交互式标识符的广播内容信号。 交互式标识符可以是包括在头部中或嵌入在数字视频数据内的触发器。 触发器可以具有时间分量，其中触发器可以在一定时间段之后过期。 响应于触发的识别，客户端设备通过非托管网络发送用于交互式内容的用户请求。 例如，被管理网络可以是单向卫星电视网络，IP电视网络或有线电视网络，并且非托管网络可以是因特网。 客户端设备在从被管理网络接收数据到从非托管网络接收数据之间切换。
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3.发明申请Providing Television Broadcasts over a Managed Network and Interactive Content over an Unmanaged Network to a Client Device 审中-公开通过管理网络提供电视广播，并通过非托管网络将交互式内容提供给客户端设备公开(公告)号：US20090328109A1
公开(公告)日：2009-12-31
申请号：US12489017
申请日：2009-06-22
申请人： Lena Y. Pavlovskaia , Andreas Lennartsson , Charles Lawrence , Joshua Dahlby , Andrey Marsavin , Gregory E. Brown , Jeremy Edmonds , Hsuehmin Li , Vlad Shamgin
发明人： Lena Y. Pavlovskaia , Andreas Lennartsson , Charles Lawrence , Joshua Dahlby , Andrey Marsavin , Gregory E. Brown , Jeremy Edmonds , Hsuehmin Li , Vlad Shamgin
CPC分类号： H04N7/17318 , H04N19/23 , H04N19/48 , H04N19/527 , H04N21/23412 , H04N21/23424 , H04N21/2343 , H04N21/2365 , H04N21/4316 , H04N21/4622 , H04N21/4722 , H04N21/812 , H04N21/8543 , H04N21/8586
摘要： A client device receives a broadcast content signal containing an interactive identifier over a managed network at a client device. The interactive identifier may be a trigger that is included in a header or embedded within the digital video data. The trigger may have a temporal component, wherein the trigger can expire after a certain period of time. In response to identification of the trigger, the client device sends a user request for interactive content over an unmanaged network. For example, the managed network may be a one-way satellite television network, IP-television network or cable television network and the unmanaged network may be the Internet. The client device switches between receiving data from the managed network to receiving data from the unmanaged network.
摘要翻译： 客户端设备在客户端设备处通过受管网络接收包含交互式标识符的广播内容信号。 交互式标识符可以是包括在头部中或嵌入在数字视频数据内的触发器。 触发器可以具有时间分量，其中触发器可以在一定时间段之后过期。 响应于触发的识别，客户端设备通过非托管网络发送用于交互式内容的用户请求。 例如，被管理网络可以是单向卫星电视网络，IP电视网络或有线电视网络，并且非托管网络可以是因特网。 客户端设备在从被管理网络接收数据到从非托管网络接收数据之间切换。
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公开(公告)号：US09826197B2
公开(公告)日：2017-11-21
申请号：US12651203
申请日：2009-12-31
IPC分类号： H04N7/173 , H04N21/234 , H04N21/2343 , H04N21/2365 , H04N21/24 , H04N21/431 , H04N21/434 , H04N21/44 , H04N21/4722 , H04N21/63 , H04N21/81 , H04N21/8543 , H04N19/48 , H04N19/23 , H04N19/527
CPC分类号： H04N7/17318 , H04N19/23 , H04N19/48 , H04N19/527 , H04N21/23412 , H04N21/23424 , H04N21/2343 , H04N21/2365 , H04N21/2402 , H04N21/4316 , H04N21/4347 , H04N21/44012 , H04N21/4722 , H04N21/631 , H04N21/812 , H04N21/8173 , H04N21/8543
摘要： A client device receives a broadcast content signal containing an interactive identifier over a managed network at a client device. The interactive identifier may be a trigger that is included in a header or embedded within the digital video data. The trigger may have a temporal component, wherein the trigger can expire after a certain period of time. In response to identification of the trigger, the client device sends a user request for interactive content over an unmanaged network. For example, the managed network may be a one-way satellite television network, IP-television network or cable television network and the unmanaged network may be the Internet. The client device switches between receiving data from the managed network to receiving data from the unmanaged network.
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5.发明授权Reduction of latency in video distribution networks using adaptive bit rates 有权使用自适应比特率降低视频分配网络中的延迟公开(公告)号：US09204203B2
公开(公告)日：2015-12-01
申请号：US13438617
申请日：2012-04-03
IPC分类号： H04N7/26 , H04N21/647 , H04N21/6587 , H04N19/115 , H04N19/164
CPC分类号： H04N21/64753 , H04N19/115 , H04N19/164 , H04N21/64769 , H04N21/6587
摘要： Systems and methods are provided for reducing and controlling playback latency in an unmanaged, buffered data network. A delay cost function is determined, the function representing the effect of playback latency on end user experience. An encoder transmits audiovisual data through the network to a client device. Network latency is measured, and the delay cost function is evaluated to establish an encoding bitrate for the encoder. The encoding of the audiovisual data is altered in response to dynamic network conditions, thereby controlling end-to-end playback latency of the system, which is represented by the playout length of data buffered between the encoder and the client device.
摘要翻译： 提供了系统和方法，用于减少和控制非托管缓冲数据网络中的播放延迟。 确定延迟成本函数，表示播放延迟对最终用户体验的影响的功能。 编码器通过网络将视听数据发送到客户端设备。 测量网络延迟，并评估延迟成本函数以建立编码器的编码比特率。 响应于动态网络条件改变视听数据的编码，从而控制系统的端到端回放等待时间，其由在编码器和客户端设备之间缓冲的数据的播出长度来表示。
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