公开(公告)号：US20110299441A1

公开(公告)日：2011-12-08

申请号：US12889967

申请日：2010-09-24

申请人： Branislav PETROVIC

发明人： Branislav PETROVIC

IPC分类号： H04W4/00 ,  H04L27/00

CPC分类号： H04B7/0408 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/444

摘要： A method of signal processing, or corresponding apparatus, includes providing digital input signals representing beamforming data to be transmitted on respective antennas. One of the digital input signals is selected at a time among a plurality of times, to cycle through the digital input signals repeatedly and provide a multiplexed digital signal, which is converted to a multiplexed analog signal. The multiplexed analog signal is filtered to pass a predetermined frequency band and demultiplexed to provide analog output signals. One of the analog output signals is selected and provided to a corresponding antenna for transmission. Sharing a transmitter and DAC among multiple antennas results in reduced cost and power. Such cost and power reductions in turn enable larger antenna arrays than are available with prior art techniques, thereby promoting increased throughput and coverage.

摘要翻译： 一种信号处理方法或相应的装置，包括提供表示将在相应天线上传输的波束形成数据的数字输入信号。 数字输入信号中的一个在多次中一次被选择，以反复循环数字输入信号，并提供被转换为复用的模拟信号的复用数字信号。 复用的模拟信号被滤波以通过预定的频带并被解复用以提供模拟输出信号。 选择一个模拟输出信号并将其提供给相应的天线进行传输。 在多个天线之间共享发射机和DAC可以降低成本和功耗。 这样的成本和功率减少又使得能够比现有技术可用的更大的天线阵列，从而促进增加的吞吐量和覆盖。

公开(公告)号：US20110216781A1

公开(公告)日：2011-09-08

申请号：US13075719

申请日：2011-03-30

申请人： David BARR

发明人： David BARR

IPC分类号： H04J4/00

CPC分类号： H04J4/00 ,  H04L5/0007 ,  H04L27/28

摘要： A method of transmitting orthogonal frequency division multiple access (OFDMA) signals includes transmitting, at a first transmitter of a network, a first stream of data having a first number of symbols over a first time interval using a first set of one or more OFDMA subcarriers. At a second transmitter of the network, a second stream of data is transmitted having a second number of symbols over a second time interval, different in duration than the first time interval and overlapping the first time interval. The second burst of data is transmitted using a second set of one or more OFDMA subcarriers. The first time interval and first set of subcarriers define a first time-frequency grant, the second time interval and second set of subcarriers define a second time-frequency grant, and the first and second time-frequency grants are granted by a network coordinator node of the network.

摘要翻译： 一种发送正交频分多址（OFDMA）信号的方法包括：使用第一组一个或多个OFDMA子载波在第一时间间隔内在网络的第一发射机处发送具有第一数目符号的第一数据流 。 在网络的第二发射机处，在第二时间间隔上发送具有第二数量符号的第二数据流，其持续时间与第一时间间隔不同，并与第一时间间隔重叠。 使用一个或多个OFDMA子载波的第二组发送第二数据突发。 第一时间间隔和第一组副载波限定第一时间频率授权，第二时间间隔和第二子载波组限定第二时间频率授权，并且第一和第二时间频率授权由网络协调器节点 的网络。

公开(公告)号：US20110205892A1

公开(公告)日：2011-08-25

申请号：US13098889

申请日：2011-05-02

申请人： Zong Liang WU

发明人： Zong Liang WU

IPC分类号： H04L12/26

CPC分类号： H04L47/62 ,  H04L47/10 ,  H04L47/12 ,  H04L47/17 ,  H04L47/2441 ,  H04L47/266 ,  H04L47/28 ,  H04L47/30 ,  H04L47/32

摘要： Various embodiments of methods and systems for pausing and shaping data flow while supporting both parameterized and prioritized Quality of Service are disclosed. In some embodiments, a system for pausing and shaping data flow comprises an input buffer, a first pause controller coupled to the input buffer and an output buffer for flow control messages. Various embodiments also include a hop-1 buffer coupled to the input buffer and a hop-2 buffer comprising a plurality of queues coupled to the hop-1 buffer. Additionally, in some embodiments, a second pause controller is coupled to the queues. The second pause controller selects a queue or queues that will cause a pause to be generated based on a predetermined condition. A two-hop process controller controls the data packet flow from the input buffer to the hop-1 buffer and from the hop-1 buffer to the hop-2 queues based on packet classification.

摘要翻译： 公开了用于暂停和整形数据流的方法和系统的各种实施例，同时支持参数化和优先化服务质量。 在一些实施例中，用于暂停和整形数据流的系统包括输入缓冲器，耦合到输入缓冲器的第一暂停控制器和用于流控制消息的输出缓冲器。 各种实施例还包括耦合到输入缓冲器的hop-1缓冲器和包括耦合到hop-1缓冲器的多个队列的hop-2缓冲器。 此外，在一些实施例中，第二暂停控制器耦合到队列。 第二暂停控制器基于预定条件选择将导致暂停生成的队列或队列。 双跳过程控制器根据数据包分类控制从输入缓冲区到hop-1缓冲区和从hop-1缓冲区到hop-2队列的数据包流。

公开(公告)号：US20110204966A1

公开(公告)日：2011-08-25

申请号：US13098739

申请日：2011-05-02

申请人： Wai Lim NGAI

发明人： Wai Lim NGAI

IPC分类号： G05F3/02

CPC分类号： H02M3/07 ,  G01R15/06 ,  H02M2003/072

摘要： Methods and apparatus for capacitive voltage division are provided, an example apparatus having an input and an output and including a first switched capacitor circuit. In some embodiments, the capacitive voltage divider includes first and second MOSFETs. A first capacitor is coupled between the drain of the first MOSFET and the input to the capacitive voltage divider. A first circuit coupled to the drain of the first MOSFET is configured to pull down the drain of the first MOSFET and thus apply a reverse bias to a first junction diode internal to the first MOSFET between the drain and the bulk of the first MOSFET. A second capacitor is coupled between the source of the first MOSFET and the drain of the second MOSFET. A second circuit is configured to reverse bias a second junction diode between the drain and bulk of the second MOSFET.

公开(公告)号：US20110134786A1

公开(公告)日：2011-06-09

申请号：US13027030

申请日：2011-02-14

申请人： Anton MONK ,  Brett BERNATH ,  Yusuf OZTURK ,  Ron PORAT

发明人： Anton MONK ,  Brett BERNATH ,  Yusuf OZTURK ,  Ron PORAT

IPC分类号： H04L12/26 ,  H04L29/02

CPC分类号： H04L43/08 ,  H04L12/2801 ,  H04L27/0012 ,  H04L41/32 ,  H04N7/102 ,  H04N7/104 ,  H04N7/106 ,  H04N7/17309 ,  H04N21/436 ,  H04N21/43632 ,  H04N21/44209 ,  H04N21/4622 ,  H04N21/615

摘要： A broadband cable network (“BCN”) for determining a common bit-loading modulation scheme for communicating between a plurality of nodes in the BCN is disclosed. The BCN may include a transmitting node within the plurality of nodes where the transmitting node is capable of sending a probe signal to the plurality of nodes, and at least one receiving node within the plurality of nodes in signal communication with the transmitting node. The at least one receiving node is capable of transmitting a first response signal in response to receiving the probe signal. The first response signal includes a first bit-loading modulation scheme determined by the at least one receiving node. The transmitting node is further capable of determining the common bit-loading modulation scheme from the first response signal.

摘要翻译： 公开了一种用于确定用于在BCN中的多个节点之间通信的公共比特加载调制方案的宽带电缆网络（“BCN”）。 BCN可以包括多个节点内的发射节点，其中发射节点能够向多个节点发送探测信号，以及多个节点内的至少一个接收节点与发射节点进行信号通信。 响应于接收到探测信号，至少一个接收节点能够发送第一响应信号。 第一响应信号包括由至少一个接收节点确定的第一位加载调制方案。 发送节点还能够从第一响应信号确定公共比特加载调制方案。

公开(公告)号：US07937738B1

公开(公告)日：2011-05-03

申请号：US10925365

申请日：2004-08-23

申请人： Itzhak Gurantz

发明人： Itzhak Gurantz

IPC分类号： H04N7/173

CPC分类号： H04N21/42204 ,  H04L1/0003 ,  H04L1/0021 ,  H04N7/17318 ,  H04N21/2383 ,  H04N21/2408 ,  H04N21/44209 ,  H04N21/6168 ,  H04N21/6377

摘要： A system is described that consists of a variable modulation unicast system that utilizes multiple modulation schemes in a cable network for unicast applications and is capable of assigning users to different channels of differing modulation schemes in the network based on a feedback signal received in response to a transmitted probe signal. The system may also, in response to the feedback signal from a remote device in the network, assign a channel from a plurality of channels having differing carrier frequencies and modulation schemes to the remote device and may also modify the carrier frequencies of the channels.

摘要翻译： 描述了一种由可变调制单播系统组成的系统，该可变调制单播系统在用于单播应用的有线网络中利用多个调制方案，并且能够基于响应于所述网络接收的反馈信号将用户分配给网络中不同调制方案的不同信道 传输探测信号。 该系统还可以响应于来自网络中的远程设备的反馈信号，将具有不同载波频率和调制方案的多个信道的信道分配给远程设备，并且还可以修改信道的载波频率。

公开(公告)号：US20110037628A1

公开(公告)日：2011-02-17

申请号：US12822977

申请日：2010-06-24

申请人： Branislav PETROVIC

发明人： Branislav PETROVIC

IPC分类号： H03M1/06 ,  H03M1/10

CPC分类号： H03M1/1245 ,  H03M1/1004 ,  H03M1/1038

摘要： Techniques for accelerated processing associated with analog to digital signal conversion are disclosed. Accelerated processing is provided for sample-and-hold and track-and-hold circuits used with analog to digital converters in various embodiments. An abbreviated sampling state, an abbreviated reset state, or both are employed in various embodiments. By accelerating processing so as to avoid the need for waiting for a signal to settle within a predetermined tolerance, errors of different types may be incurred. Such errors are determined during calibration and stored for future retrieval and error compensation. Techniques for online and offline calibration are disclosed, whereby calibration may or may not impact normal signal conversion processing. Techniques disclosed herein find broad applicability in analog to digital conversion and yield faster processing in a variety of contexts.

摘要翻译： 公开了与模数转换相关的加速处理技术。 在各种实施例中，提供了用于模数转换器的采样保持和跟踪和保持电路的加速处理。 在各种实施例中采用缩写采样状态，缩写复位状态或两者。 通过加速处理，以避免等待信号在预定公差内进行定位，可能会导致不同类型的错误。 这样的误差在校准期间被确定并存储以用于将来检索和误差补偿。 公开了用于在线和离线校准的技术，由此校准可能影响或可能不影响正常的信号转换处理。 在本文中公开的技术在模数转换中具有广泛的适用性，并且在各种上下文中产生更快的处理。

公开(公告)号：US20100229015A1

公开(公告)日：2010-09-09

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： G06F1/32

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。

公开(公告)号：US20100214916A1

公开(公告)日：2010-08-26

申请号：US12709435

申请日：2010-02-19

申请人： Zong Liang WU ,  Ronald LEE

发明人： Zong Liang WU ,  Ronald LEE

IPC分类号： H04L12/26

CPC分类号： H04L12/2801 ,  H04L47/781 ,  H04L47/801 ,  H04L47/805 ,  H04L47/826

摘要： Systems and methods for scheduling network communications in a managed network can include receiving in a Network Coordinator a submission from each of a plurality of network nodes requesting, for their respective flows, reservation of communication slots in a communication window, the submission including scheduling information such as latency tolerance maximum aggregation amount; the Network Coordinator checking available bandwidth in the communication window; and the Network Coordinator allocating the available bandwidth to a first flow from a first requesting node based on the first flow's scheduling information and the bandwidth availability, and deferring allocation of bandwidth to a second flow from a second requesting node until a later window based on the second flow's scheduling information and the bandwidth availability, thereby reallocating peak demand among the plurality of requesting nodes across a plurality of communication windows.

摘要翻译： 用于在受管网络中调度网络通信的系统和方法可以包括在网络协调器中接收来自多个网络节点中的每一个的请求，对于它们各自的流，请求通信窗口中的通信时隙的预留，该提交包括诸如 作为延迟容忍最大聚合量; 网络协调器检查通信窗口中的可用带宽; 并且所述网络协调器基于所述第一流的调度信息和所述带宽可用性将可用带宽分配给来自第一请求节点的第一流，并且将带宽分配从第二请求节点延迟到第二流，直到基于 第二流的调度信息和带宽可用性，从而在多个通信窗口中重新分配多个请求节点中的峰值需求。

公开(公告)号：US20100183027A1

公开(公告)日：2010-07-22

申请号：US12688535

申请日：2010-01-15

申请人： Arndt J. MUELLER

发明人： Arndt J. MUELLER

IPC分类号： H04J3/22

CPC分类号： H04L1/1671 ,  H04L1/0001 ,  H04L1/0025 ,  H04L2001/0093

摘要： A method includes receiving a request for bandwidth from a first network node of a coordinated network and broadcasting a first transmission schedule to a plurality of network nodes including the first network node. The first transmission schedule allocates bandwidth for the first network node to transmit data to a second network node. An acknowledgement (ACK) message is received from the second network node identifying that the second network node successfully received the data from the first network node.

摘要翻译： 一种方法包括从协调网络的第一网络节点接收对带宽的请求，并向包括第一网络节点的多个网络节点广播第一传输调度。 第一传输调度为第一网络节点分配带宽以将数据发送到第二网络节点。 从第二网络节点接收到确认第二网络节点成功地从第一网络节点接收到数据的确认（ACK）消息。