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公开(公告)号：US20130195119A1
公开(公告)日：2013-08-01
申请号：US13563984
申请日：2012-08-01
申请人： Xiaolong Huang , Vijayalakshmi R. Raveendran , PhaniKumar K. Bhamidipati , Fawad Shaukat , Xiaodong Wang , Jeff S. Froelicher
发明人： Xiaolong Huang , Vijayalakshmi R. Raveendran , PhaniKumar K. Bhamidipati , Fawad Shaukat , Xiaodong Wang , Jeff S. Froelicher
IPC分类号： H04L12/24
CPC分类号： H04L41/0896 , H04L43/08 , H04L65/4092 , H04L65/602 , H04L65/608 , H04L69/165 , H04L69/22
摘要： A sink device in a Wireless Display (WD) system may send performance information feedback to a source device to adjust media data processing at the source device. The performance information feedback may include performance indicators of the WD system that are capable of being measured or calculated at the sink device based on received media data or request to adjust the transmission of media data. For example, the performance information feedback may include one or more of round trip delay, delay jitter, packet loss ratio, error distribution, and received signal strength indication (RSSI). The feedback channel may be piggybacked on a reverse channel architecture referred to as the User Input Back Channel (UIBC) implemented between the source device and the sink device.
摘要翻译： 无线显示（WD）系统中的信宿设备可以向源设备发送性能信息反馈以调整源设备处的媒体数据处理。 性能信息反馈可以包括基于接收的媒体数据或调整媒体数据的传输的请求能够在信宿设备测量或计算的WD系统的性能指标。 例如，性能信息反馈可以包括往返延迟，延迟抖动，分组丢失率，误差分布和接收信号强度指示（RSSI）中的一个或多个。 反馈信道可以搭载在源设备和宿设备之间实现的称为用户输入返回通道（UIBC）的反向信道架构上。
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公开(公告)号：US09942606B2
公开(公告)日：2018-04-10
申请号：US12984038
申请日：2011-01-04
IPC分类号： H04N5/38 , H04N7/04 , H04N21/4402 , H04N21/434 , H04N21/4363
CPC分类号： H04N21/440218 , H04N21/4344 , H04N21/4346 , H04N21/43637
摘要： Television white space devices are operable to communicate information over television white space and, more specifically, to quiet a transmitter for sensing signals in the television white space. A method for inconspicuous quieting of the transmitter in a television white space device inserts, from an application layer, information into a transport stream for transmission by the transmitter of the television white space device to produce a null window of time within the transport stream at a predetermined time. The method also transmits the transport stream by the transmitter of the television white space device and quiets the transmitter during the null window of time. The method senses, by a white space sensor of the television white space device, existing signals in the white space during the null window of time.
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公开(公告)号：US09049464B2
公开(公告)日：2015-06-02
申请号：US13155228
申请日：2011-06-07
IPC分类号： G06K9/36 , H04N21/234 , H04N19/137 , H04N19/17 , H04N19/39 , H04N19/587 , H04N19/59
CPC分类号： H04N21/23418 , H04N19/137 , H04N19/17 , H04N19/39 , H04N19/587 , H04N19/59
摘要： An apparatus, system, and method utilizing multi-description coding (MDC) for multimedia content with a plurality of forms of diversity. A source scene can be fragmented into one or more region of interest (ROI) portions and non-ROI portions, based on motion or any other metric of interest. One or more of these portions can further be fragmented by sub-sampling the respective portions to generate a plurality of lower-resolution versions, e.g., with alternating groups of pixels in respective versions. Still further, one or more of these portions can be further fragmented by image frames, e.g., with alternating frames in respective fragments. At least one ROI portion and lower-resolution versions may then be encoded into a plurality of descriptions and transmitted. Utilizing various combinations of ROI diversity, resolution diversity, and frame rate diversity can improve channel utilization and robustness for streaming multimedia content.
摘要翻译： 一种利用具有多种形式的多样性的多媒体内容的多描述编码（MDC）的装置，系统和方法。 基于运动或感兴趣的任何其他度量，源场景可以被分段成一个或多个感兴趣区域（ROI）部分和非ROI部分。 这些部分中的一个或多个可以通过对相应部分进行子采样来进一步分段，以产生多个较低分辨率的版本，例如，在相应版本中具有交替的像素组。 此外，这些部分中的一个或多个可以被图像帧进一步分段，例如，在相应片段中具有交替的帧。 然后可以将至少一个ROI部分和较低分辨率版本编码为多个描述并发送。 利用ROI分集，分辨率分集和帧速率分集的各种组合可以提高流媒体内容的信道利用率和鲁棒性。
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公开(公告)号：US20120314948A1
公开(公告)日：2012-12-13
申请号：US13155228
申请日：2011-06-07
CPC分类号： H04N21/23418 , H04N19/137 , H04N19/17 , H04N19/39 , H04N19/587 , H04N19/59
摘要： An apparatus, system, and method utilizing multi-description coding (MDC) for multimedia content with a plurality of forms of diversity. A source scene can be fragmented into one or more region of interest (ROI) portions and non-ROI portions, based on motion or any other metric of interest. One or more of these portions can further be fragmented by sub-sampling the respective portions to generate a plurality of lower-resolution versions, e.g., with alternating groups of pixels in respective versions. Still further, one or more of these portions can be further fragmented by image frames, e.g., with alternating frames in respective fragments. At least one ROI portion and lower-resolution versions may then be encoded into a plurality of descriptions and transmitted. Utilizing various combinations of ROI diversity, resolution diversity, and frame rate diversity can improve channel utilization and robustness for streaming multimedia content.
摘要翻译： 一种利用具有多种形式的多样性的多媒体内容的多描述编码（MDC）的装置，系统和方法。 基于运动或感兴趣的任何其他度量，源场景可以被分段成一个或多个感兴趣区域（ROI）部分和非ROI部分。 这些部分中的一个或多个可以通过对相应部分进行子采样来进一步分段，以产生多个较低分辨率的版本，例如，在相应版本中具有交替的像素组。 此外，这些部分中的一个或多个可以被图像帧进一步分段，例如，在相应片段中具有交替的帧。 然后可以将至少一个ROI部分和较低分辨率版本编码为多个描述并发送。 利用ROI分集，分辨率分集和帧速率分集的各种组合可以提高流媒体内容的信道利用率和鲁棒性。
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公开(公告)号：US20110164177A1
公开(公告)日：2011-07-07
申请号：US12984038
申请日：2011-01-04
CPC分类号： H04N21/440218 , H04N21/4344 , H04N21/4346 , H04N21/43637
摘要： Television white space devices are operable to communicate information over television white space and, more specifically, to quiet a transmitter for sensing signals in the television white space. A method for inconspicuous quieting of the transmitter in a television white space device inserts, from an application layer, information into a transport stream for transmission by the transmitter of the television white space device to produce a null window of time within the transport stream at a predetermined time. The method also transmits the transport stream by the transmitter of the television white space device and quiets the transmitter during the null window of time. The method senses, by a white space sensor of the television white space device, existing signals in the white space during the null window of time.
摘要翻译： 电视空白设备可操作以通过电视机空白来传达信息，更具体地，安静用于感测电视空白区域中的信号的发射机。 一种用于在电视空白设备中发射机不显眼的方法将应用层将信息插入到传输流中，以便由电视空白设备的发射机传输，以在传输流内产生一个零时间窗口 预定时间 该方法还通过电视空白设备的发射机发送传输流，并在零时间窗口中对发射机进行遮挡。 该方法通过电视空白设备的白色空间传感器在空白时间段内感知白色空间中的现有信号。
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