公开(公告)号：US20130315314A1

公开(公告)日：2013-11-28

申请号：US13957398

申请日：2013-08-01

申请人： Entropic Communications, Inc.

发明人： Bijo Thomas

IPC分类号： H04N7/34

CPC分类号： H04N19/523 ,  H04N19/43

摘要： A video processor comprises an instruction set of programmed operations for operating on video data. The instruction set has an instruction which corresponds to a programmed operation for performing a motion estimation calculation between pixel data in frames of video data. The programmed operation causes the processor to calculate a measure of motion estimation at each of a plurality of search locations within a search window. The processor comprises a plurality of calculation units (6), each of the units (6) being operable to perform a calculation, or partial calculation, at a different search location. The plurality of calculation units (6) perform the calculations, or partial calculations, in parallel. The measure of motion estimation calculation is one of: a sum of absolute difference (SAD) calculation; a mean square error (MSE) calculation, a mean absolute error (MAE) calculation.

摘要翻译： 视频处理器包括用于对视频数据进行操作的编程操作的指令集。 指令集具有对应于用于在视频数据的帧中的像素数据之间执行运动估计计算的编程操作的指令。 编程的操作使得处理器在搜索窗口内的多个搜索位置的每个处计算运动估计的度量。 处理器包括多个计算单元（6），每个单元（6）可操作以在不同的搜索位置执行计算或部分计算。 多个计算单元（6）并行地执行计算或部分计算。 运动估计计算的度量是：绝对差（SAD）计算的和; 平均误差（MSE）计算，平均绝对误差（MAE）计算。

公开(公告)号：US08593983B2

公开(公告)日：2013-11-26

申请号：US13013795

申请日：2011-01-25

申请人： David Barr

发明人： David Barr

IPC分类号： H04J1/16

CPC分类号： H04W72/085

摘要： A method for characterizing a communication channel on a communication network includes receiving within a network node at least one silent symbol transmitted together with a packet, and determining within the network node the amount of energy received by the network node during the silent symbol. Determining the amount of energy may include comparing the amount of energy received during a first silent symbol with the amount of energy received during subsequent silent symbols. The packet transmitted with the silent symbol may include a preamble and the silent symbol may be transmitted before the preamble. The packet may include data symbols and the silent symbol may be transmitted for a duration that is shorter than the duration of one data symbol transmitted in the packet.

摘要翻译： 用于表征通信网络上的通信信道的方法包括在网络节点内接收与分组一起发送的至少一个无声符号，以及在所述无声符号期间在所述网络节点内确定由所述网络节点接收到的能量的量。 确定能量的量可以包括将在第一无声符号期间接收的能量的量与在随后的无声符号期间接收的能量的量进行比较。 用无声符号发送的分组可以包括前导码，并且可以在前导码之前发送无声符号。 分组可以包括数据符号，并且可以在短于在分组中发送的一个数据符号的持续时间的持续时间内传输静音符号。

公开(公告)号：US08587722B1

公开(公告)日：2013-11-19

申请号：US10961863

申请日：2004-10-08

申请人： Jiande Jiang ,  Kenny Tseng ,  Walter C. Lin ,  Jung-Herng Chang

发明人： Jiande Jiang ,  Kenny Tseng ,  Walter C. Lin ,  Jung-Herng Chang

IPC分类号： H03L7/00

CPC分类号： H04N5/126

摘要： The present invention provides a system and method for automatically controlling the phase of the clock signal for sampling an HDTV signal, which implements a new and improved method for phase detection. The system and method utilize the standard format of an HDTV signal to consistently ensure accurate phase detection. Particularly, the system and method detect the target phase for the sampling clock using a tri-level sync pattern that exists at the beginning of each display line. This tri-level sync pattern or “sync pulse” is well suited for phase detection since it includes several static areas separated by substantial transitions. Furthermore, by using the sync pulse of the HDTV signal, the system and method provide consistent and accurate results, since the sync pulse will not change regardless of the whether the video data is static or in motion.

摘要翻译： 本发明提供一种用于自动控制用于采样HDTV信号的时钟信号的相位的系统和方法，其实现了用于相位检测的新的和改进的方法。 该系统和方法利用HDTV信号的标准格式一致地确保准确的相位检测。 特别地，系统和方法使用存在于每个显示行开始处的三电平同步模式来检测采样时钟的目标相位。 这种三电平同步模式或“同步脉冲”非常适合于相位检测，因为它包括通过实质转换分离的几个静态区域。 此外，通过使用HDTV信号的同步脉冲，系统和方法提供一致和准确的结果，因为无论视频数据是静态还是运动，同步脉冲都不会改变。

公开(公告)号：US08582576B2

公开(公告)日：2013-11-12

申请号：US13076743

申请日：2011-03-31

申请人： Zong Liang Wu ,  Ronald B. Lee ,  Yusuf Ozturk

发明人： Zong Liang Wu ,  Ronald B. Lee ,  Yusuf Ozturk

IPC分类号： H04L12/28

CPC分类号： H04L12/40078 ,  H04L12/40091

摘要： Several local IEEE1394 buses are bridged together over a second bus type to create a global bus wherein each local bus node is able to address nodes across the global bus without the local nodes being aware of the bridging operation. A bridging device operates by translating local bus node addresses to a global bus for communication over the second bus type. Alternatively, the local bus node identification process is controlled by the bridging device operating as the root node to cause the local nodes to be identified with a node address that is unique for the global network. The second bus type operates as a backbone for the global network and can be any type of communication bus or network with capability to transport the local bus traffic. The bridging devices that interface the local IEEE1394 buses to the backbone contain portals specific to each bus type that can communicate data between the dissimilar buses.

摘要翻译： 多个本地IEEE1394总线通过第二总线类型桥接在一起以创建全局总线，其中每个局部总线节点能够对全局总线上的节点进行寻址，而本地节点不知道桥接操作。 桥接设备通过将本地总线节点地址转换为全局总线来进行工作，以便在第二总线类型上进行通信。 或者，本地总线节点识别过程由作为根节点操作的桥接设备来控制，以使得本地节点被识别为对于全局网络是唯一的节点地址。 第二总线类型作为全球网络的骨干，可以是具有传输本地总线业务能力的任何类型的通信总线或网络。 将本地IEEE1394总线连接到骨干网的桥接设备包含特定于每种总线类型的门户，可以在不同总线之间传输数据。

公开(公告)号：US20130287096A1

公开(公告)日：2013-10-31

申请号：US13661778

申请日：2012-10-26

申请人： ENTROPIC COMMUNICATIONS, INC.

发明人： Geert VANDERHEIJDEN ,  Hans TICHELAAR

IPC分类号： H04N7/26

CPC分类号： H04N19/00533 ,  H04N19/109 ,  H04N19/124 ,  H04N19/132 ,  H04N19/139 ,  H04N19/14 ,  H04N19/156 ,  H04N19/159 ,  H04N19/17 ,  H04N19/18 ,  H04N19/40 ,  H04N19/44 ,  H04N19/61 ,  H04N21/234363 ,  H04N21/25808 ,  H04N21/2662 ,  H04N21/434 ,  H04N21/440245 ,  H04N21/4621 ,  H04N21/4728 ,  H04N21/64792

摘要： A compressed data stream modifier 270 is disclosed. The stream modifier modifies an input data stream that may comprise audio and video data streams conforming to any one of the well-known video compression standards, for example, MPEG or AVC. The input stream is first de-multiplexed to obtain a single video elementary stream. The video elementary stream is then decoded by means of a variable-length decoder and provided to the data stream modifier. A decoding complexity of each frame is estimated by an estimator 210 and provided to a controller 250. The controller selects a number of regions from each frame based on some psycho-visual criteria, such that a method of modification of these regions can bring the decoding complexity within an available capacity at a decoder. An efficient means of adapting a decoding complexity to an available capacity is thus obtained.

摘要翻译： 公开了压缩数据流修改器270。 流修改器修改可以包括符合任何一种公知的视频压缩标准（例如MPEG或AVC）的音频和视频数据流的输入数据流。 输入流首先被解复用以获得单个视频基本流。 视频基本流然后通过可变长度解码器解码并提供给数据流修改器。 每个帧的解码复杂度由估计器210估计并提供给控制器250.控制器基于一些心理视觉标准从每个帧中选择多个区域，使得这些区域的修改方法可以使解码 解码器可用容量内的复杂度。 从而获得将解码复杂度调整到可用容量的有效手段。

公开(公告)号：US08566678B2

公开(公告)日：2013-10-22

申请号：US12862636

申请日：2010-08-24

申请人： Donald Brian Eidson ,  Arndt Joseph Mueller ,  Joseph B. Soriaga ,  Itzhak Gurantz

发明人： Donald Brian Eidson ,  Arndt Joseph Mueller ,  Joseph B. Soriaga ,  Itzhak Gurantz

IPC分类号： H03M13/00

CPC分类号： H03G3/3078 ,  H03G3/3068

摘要： Multiple channels of received data are processed by a multiple channel demodulation and error correction decoding engine. The statistical uncertainty of processing channels with an iterative decoder are averaged across all the channels to reduce the total processing power required of the decoding engine compared to processing each channel with a separate engine. A set of input buffers holds blocks of data for each channel needing decoding. A quality measure is computed on each input block to set the priority and iteration allocation of decoding in the common decoder. The input RF signal is digitized by a broadband tuner that processes some or all of the channels to feed the multiple channel demodulator and decoder. Multiple decoded video data streams are output.

摘要翻译： 多信道的接收数据由多信道解调和纠错解码引擎处理。 使用迭代解码器的处理通道的统计不确定性在所有通道上被平均，以减少与使用单独的引擎处理每个通道相比，解码引擎所需的总处理能力。 一组输入缓冲器保存需要解码的每个通道的数据块。 在每个输入块上计算质量度量，以在公共解码器中设置解码的优先级和迭代分配。 输入RF信号由处理部分或全部信道的宽带调谐器数字化，以馈送多信道解调器和解码器。 输出多个解码视频数据流。

公开(公告)号：US08542938B2

公开(公告)日：2013-09-24

申请号：US12346906

申请日：2008-12-31

申请人： Anurag Goel

发明人： Anurag Goel

IPC分类号： G06K9/36

CPC分类号： H04N19/48 ,  H04N19/105 ,  H04N19/11 ,  H04N19/134 ,  H04N19/176 ,  H04N19/46 ,  H04N19/593 ,  H04N19/61

摘要： A system and method for intra-frame compression using predictive coding utilizes some pixels of a macroblock of a video frame as reference pixels to perform predictive coding on the rest of the macroblock when some or all predefined reference pixels for performing predictive coding on the macroblock are not available in the video frame.

摘要翻译： 用于使用预测编码的帧内压缩的系统和方法利用视频帧的宏块的一些像素作为参考像素，以在宏块上执行预测编码的一些或所有预定参考像素是对宏块的其余部分执行预测编码 在视频帧中不可用。

公开(公告)号：US08542683B2

公开(公告)日：2013-09-24

申请号：US12165426

申请日：2008-06-30

申请人： Kenneth Chu ,  Inderjit Singh

发明人： Kenneth Chu ,  Inderjit Singh

IPC分类号： H04L12/56

CPC分类号： H04L12/2801

摘要： The subject matter disclosed herein relates to dynamically adjusting bitloading for multiple destinations on a network.

摘要翻译： 本文公开的主题涉及动态调整网络上多个目的地的比特加载。

公开(公告)号：US08536916B1

公开(公告)日：2013-09-17

申请号：US13612613

申请日：2012-09-12

申请人： Josephus A. van Engelen ,  Hairong Yu ,  Howard A. Baumer

发明人： Josephus A. van Engelen ,  Hairong Yu ,  Howard A. Baumer

IPC分类号： H03L7/06

CPC分类号： H03L7/0991 ,  H03L1/022 ,  H03L7/099 ,  H03L7/104 ,  H03L7/1075 ,  H03L7/183 ,  H03L2207/06 ,  H03L2207/50

摘要： Systems and methods for generating a thermometer sigma delta encoded frequency control word for controlling a digitally controlled oscillator in accordance with embodiments of the invention are disclosed. In one embodiment, an all digital phase locked loop for generating an output clock signal includes a thermometer pulse coder configured to generate a frequency control word (FCW) that includes thermometer coded signals and a pulse modulated dither signal, and transmit the pulse modulated dither signal over a selected FCW signal line and transmit the thermometer coded signals over other FCW signal lines, and a digitally controlled oscillator to receive a FCW comprising a combined thermometer and pulse modulated signal and generate an output clock signal.

摘要翻译： 公开了用于产生用于控制根据本发明的实施例的数字控制振荡器的温度计Σ-Δ编码频率控制字的系统和方法。 在一个实施例中，用于产生输出时钟信号的全数字锁相环包括：温度计脉冲编码器，被配置为产生包括温度计编码信号和脉冲调制抖动信号的频率控制字（FCW），并且发送脉冲调制抖动信号 通过选定的FCW信号线传送温度计编码信号，并通过其它FCW信号线传送温度计编码信号，以及数字控制振荡器，以接收包含组合温度计和脉冲调制信号的FCW，并产生输出时钟信号。

公开(公告)号：US08522061B2

公开(公告)日：2013-08-27

申请号：US12717384

申请日：2010-03-04

申请人： Yoav Hebron ,  Michail Tsatsanis ,  Changwen Liu ,  Na Chen

发明人： Yoav Hebron ,  Michail Tsatsanis ,  Changwen Liu ,  Na Chen

IPC分类号： G06F1/00 ,  G08C17/00

CPC分类号： G06F1/3209 ,  H04L12/10

摘要： A power management system for home entertainment networks having three power states. The network controller is empowered to move nodes within the home entertainment network between the power states.

摘要翻译： 一种具有三种电源状态的家庭娱乐网络的电源管理系统。 网络控制器被授权在家庭娱乐网络之间在电力状态之间移动节点。