Method and System for Charging Batteries Using a Kinetic Model
    51.
    发明申请
    Method and System for Charging Batteries Using a Kinetic Model 有权
    使用动力学模型对电池充电的方法和系统

    公开(公告)号:US20130241467A1

    公开(公告)日:2013-09-19

    申请号:US13418593

    申请日:2012-03-13

    IPC分类号: H02J7/00

    摘要: A battery is charged by first charging the battery at a constant current during a first time interval, and then charging the battery at a varying current during a second time interval. The battery can be a lithium-ion battery, and the charging uses a kinetic model. The kinetic model models the battery having an indiffused well having a capacity c, and a difused well having a capacity 1−c, and the indiffused well is filled directly by the current, and the diffused well is filled only from the indiffused well via a valve with constant inductance.

    摘要翻译: 电池通过在第一时间间隔期间以恒定电流首先对电池充电,然后在第二时间间隔期间以变化的电流对电池充电。 电池可以是锂离子电池,充电使用动力学模型。 动力学模型对具有容量c的扩散井的电池进行建模,并且具有容量为1-c的扩散井,并且该扩散井由电流直接填充,并且扩散井仅通过经由 具有恒定电感的阀。

    Method and apparatus for enhancing link range in a wireless network using a self-configurable antenna
    52.
    发明授权
    Method and apparatus for enhancing link range in a wireless network using a self-configurable antenna 有权
    使用自配置天线增强无线网络中的链路范围的方法和装置

    公开(公告)号:US08483762B2

    公开(公告)日:2013-07-09

    申请号:US12207593

    申请日:2008-09-10

    IPC分类号: H04M1/00 H04B1/06

    CPC分类号: H01Q3/2611 H01Q3/26

    摘要: Embodiments of the invention facilitate providing wireless links with longer link ranges and/or better suppression of interference than can be provided by the integrated antennas of a typical wireless network node. While, in some cases, it is possible to install intermediate wireless network nodes to hop through long expanses between distant wireless network nodes, it is desirable for distantly spaced wireless network nodes to reach one another through a single transit link (i.e. one hop). This approach is preferable because a single transit link is capable of higher data rates and better interference suppression than multi-hop transit links. The present invention provides methods and apparatus for enhancing the link range achievable by typical wireless network nodes so that distantly spaced wireless network nodes are able to communicate with one another using only a single-transit link.

    摘要翻译: 本发明的实施例有助于提供具有比典型无线网络节点的集成天线提供的更长的链路范围和/或更好的干扰抑制的无线链路。 虽然在某些情况下,有可能安装中间无线网络节点来跳过远距离无线网络节点之间的长时间扩展,但是期望远距离间隔的无线网络节点通过单个转接链路(即,一跳)彼此到达。 这种方法是优选的,因为单个转接链路能够具有比多跳中继链路更高的数据速率和更好的干扰抑制。 本发明提供了用于增强典型无线网络节点可实现的链路范围的方法和装置,使得远距离间隔的无线网络节点能够仅使用单一转接链路彼此通信。

    High Electron Mobility Transistors with Multiple Channels
    54.
    发明申请
    High Electron Mobility Transistors with Multiple Channels 有权
    具有多个通道的高电子迁移率晶体管

    公开(公告)号:US20130141156A1

    公开(公告)日:2013-06-06

    申请号:US13567749

    申请日:2012-08-06

    IPC分类号: H01L29/778 G05F1/00

    摘要: A device includes a source for transmitting an electronic charge through a conduction path; a drain for receiving the electronic charge; a stack for providing at least part of the conduction path; and a gate operatively connected to the stack for controlling a conduction of the electronic charge. The stack includes an insulator layer, an N-polar layer and a barrier layer selected such that, during an operation of the device, the conduction path formed in the N-polar layer includes a two-dimensional electron gas (2DEG) channel and an inversion carrier channel.

    摘要翻译: 一种装置包括用于通过导电路径发送电荷的源; 用于接收电子费用的排水口; 用于提供所述传导路径的至少一部分的堆叠; 以及可操作地连接到所述堆叠的门,用于控制所述电子电荷的导通。 该堆叠包括绝缘体层,N极层和阻挡层,其被选择为使得在器件的操作期间,形成在N极层中的导电路径包括二维电子气(2DEG)通道和 反向载波信道。

    Method and System for Determining Parameters of Sinusoidal Signals
    55.
    发明申请
    Method and System for Determining Parameters of Sinusoidal Signals 有权
    确定正弦信号参数的方法与系统

    公开(公告)号:US20120253742A1

    公开(公告)日:2012-10-04

    申请号:US13075558

    申请日:2011-03-30

    IPC分类号: G06F19/00

    摘要: At least one parameter of a signal is determined, wherein the signal is a sinusoidal signal including noise, wherein the parameter includes at least one of a frequency of the signal, and an angle of a phase of the signal. The frequency of the signal is determined iteratively based on a linear relationship among the frequency of the signal, samples of the noise, and samples of the signal using a statistical correlation among the samples of the noise. During a current iteration the statistical correlation is updated based on the frequency of the signal determined during a previous iteration, and the samples of the signal are updated with values of the signal during a current period of time.

    摘要翻译: 确定信号的至少一个参数,其中所述信号是包括噪声的正弦信号,其中所述参数包括所述信号的频率和所述信号的相位的角度中的至少一个。 基于信号频率,噪声样本和信号采样之间的线性关系,使用噪声样本之间的统计相关性迭代地确定信号的频率。 在当前迭代期间,基于在先前迭代中确定的信号的频率来更新统计相关性,并且在当前时间段内信号的值被更新。

    Method and System for Estimating and Tracking Frequency and Phase Angle of 3-Phase Power Grid Voltage Signals
    56.
    发明申请
    Method and System for Estimating and Tracking Frequency and Phase Angle of 3-Phase Power Grid Voltage Signals 审中-公开
    三相电网电压信号频率和相位角的估计和跟踪方法与系统

    公开(公告)号:US20120150468A1

    公开(公告)日:2012-06-14

    申请号:US12967909

    申请日:2010-12-14

    IPC分类号: G06F19/00 G06F17/14 G06F17/10

    CPC分类号: G01R19/2513 H02J3/40

    摘要: A method estimates parameters of 3-phase voltage signals to synchronize a power grid in a presence of a voltage unbalance by transforming the 3-phase voltage signals to αβ-reference signals using a Clark transformation matrix, and estimating sinusoidal signals and corresponding quadrature signals of the αβ-reference signals using an extended Kalman filter, and determining a phase angle of a positive sequence based on a relationship of the phase angle to the estimated the sinusoidal signals.

    摘要翻译: 一种方法通过使用克拉克变换矩阵将三相电压信号转换为α和bgr-参考信号,并估计正弦信号和相应的正交信号,来估计三相电压信号的参数,以使电压不平衡存在电力同步的电网 使用扩展卡尔曼滤波器的α和bgr参考信号,并且基于相位角与估计的正弦信号的关系来确定正序列的相位角。

    Minimization of radio resource usage in multi-hop networks with multiple routings
    57.
    发明授权
    Minimization of radio resource usage in multi-hop networks with multiple routings 有权
    在具有多个路由的多跳网络中最小化无线资源使用

    公开(公告)号:US08149707B2

    公开(公告)日:2012-04-03

    申请号:US10683182

    申请日:2003-10-10

    IPC分类号: G06F11/00

    摘要: Packets in a multi-hop wireless network are routed based on the available link throughputs, network node congestion and the connectivity of the network in a manner that minimizes the use of radio resources and minimizes delay for packets in multi-hop system. The routing method also avoids congestion in the access network, especially near the network access points as provided by network access nodes. Each wireless network node maintains a link table for storing link conditions and associated route costs. Packets are routed according to the low cost route. Subsequent wireless network nodes evaluate whether a lower cost route is available and, if so, route the data packet according to the lower cost route. Every wireless network node transmits the data packet, a specified route and a time stamp indicated a time of the last data entry in the link table that was used to calculate the low cost route.

    摘要翻译: 基于可用的链路吞吐量,网络节点拥塞和网络的连通性,以最小化无线资源的使用并最小化多跳系统中的分组的延迟的方式来路由多跳无线网络中的分组。 路由方法还可以避免接入网络中的拥塞,特别是网络接入节点附近的网络接入点。 每个无线网络节点维护用于存储链路条件和相关联的路由成本的链路表。 数据包根据低成本路由进行路由。 随后的无线网络节点评估较低成本路由是否可用,如果是,则根据较低成本路由路由数据分组。 每个无线网络节点发送数据包,指定的路由和时间戳表示在用于计算低成本路由的链路表中最后一个数据条目的时间。

    Method for reducing inter-cell interference in wireless OFDMA networks
    58.
    发明授权
    Method for reducing inter-cell interference in wireless OFDMA networks 有权
    用于减少无线OFDMA网络中小区间干扰的方法

    公开(公告)号:US07813739B2

    公开(公告)日:2010-10-12

    申请号:US11862263

    申请日:2007-09-27

    IPC分类号: H04W72/00

    摘要: Protocols for OFDM/OFDMA/SC-FDMA based wireless networks provide adaptive inter-cell interference management without explicit spectrum or frequency planning. Base stations and mobile stations acquire information about subcarrier allocation from a handoff protocol. The mobile stations can also acquire this information using cognitive sensing. Cognitive sensing can be rewarded by the base station. Using this information, subcarriers can be allocated randomly, with blind optimization, or by joint optimization. The stations can use game theory to select among the different optimization strategies.

    摘要翻译: 用于基于OFDM / OFDMA / SC-FDMA的无线网络的协议提供自适应小区间干扰管理,而无需明确的频谱或频率规划。 基站和移动站从切换协议获取关于副载波分配的信息。 移动台也可以使用认知感知获取这些信息。 认知感知可以由基站奖励。 使用该信息,子载波可以随机分配,盲目优化或联合优化。 车站可以使用游戏理论来选择不同的优化策略。

    System and Method for Opportunistic Cell Edge Selection in Multi-Cell MIMO OFDMA Networks
    59.
    发明申请
    System and Method for Opportunistic Cell Edge Selection in Multi-Cell MIMO OFDMA Networks 有权
    多小区MIMO OFDMA网络中机会小区边缘选择的系统与方法

    公开(公告)号:US20100197314A1

    公开(公告)日:2010-08-05

    申请号:US12362976

    申请日:2009-01-30

    IPC分类号: H04W72/00

    摘要: A method for allocating resources in an orthogonal frequency division multiple access (OFDMA) network, where each cell in the network has a center region and an edge region. The cell center region uses a frequency band orthogonal to the frequency band used by the cell edge region. The frequency band is made up of resource blocks (RBs) or non-overlapping sets of subcarriers. Upon availability of cell-center RBs, cell-center user equipment (UEs) are assigned resource blocks. A fixed number of cell edge regions from a few adjacent cells form a cluster, and only the cell edge regions with the highest achievable throughput rate within each cluster gets to transmit in a given scheduling instance.

    摘要翻译: 一种在正交频分多址(OFDMA)网络中分配资源的方法,其中网络中的每个小区具有中心区域和边缘区域。 小区中心区域使用与小区边缘区域使用的频带正交的频带。 频带由资源块(RB)或非重叠子载波组构成。 在小区中心RB可用时,小区中心用户设备(UE)被分配资源块。 来自几个相邻小区的固定数量的小区边缘区域形成一个簇,并且只有每个簇内具有最高可实现吞吐率的小区边缘区域才能在给定的调度实例中进行传输。

    Method and system for enabling HARQ operations on channels between stations in wireless communication networks
    60.
    发明授权
    Method and system for enabling HARQ operations on channels between stations in wireless communication networks 失效
    用于在无线通信网络中的站之间的信道上实现HARQ操作的方法和系统

    公开(公告)号:US07630355B2

    公开(公告)日:2009-12-08

    申请号:US11620123

    申请日:2007-01-05

    IPC分类号: H04J1/00

    摘要: A method and system enables and improves performance of hybrid automatic repeat request (HARQ) operations on channels between stations of an orthogonal frequency division multiple access (OFDMA) wireless communication network. There, the number of parallel HARQ channels is increased adaptively, and one connection identifier is used to unambiguously identify a set of MAC protocol data units (MPDUs) communicated over parallel HARQ channels. A sequence number is used to avoid out-of-order MPDU delivery when MPDUs are transmitted over parallel HARQ channels. The MPDUs can be concatenated or encapsulated. The maximum number of the parallel HARQ channels can be increased to 256, and can be negotiated when a station enters or re-enters the network.

    摘要翻译: 一种方法和系统能够在正交频分多址(OFDMA)无线通信网络的站之间的信道上实现并提高混合自动重传请求(HARQ)操作的性能。 在此,自适应地增加并行HARQ信道的数量,并且使用一个连接标识符来明确地标识通过并行HARQ信道传送的一组MAC协议数据单元(MPDU)。 当MPDU通过并行HARQ信道发送时,序列号用于避免无序MPDU传送。 MPDU可以级联或封装。 并行HARQ信道的最大数量可以增加到256,并且当站进入或重新进入网络时可以协商。