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1.发明申请公开(公告)号：US20070217438A1
公开(公告)日：2007-09-20
申请号：US11495549
申请日：2006-07-31
IPC分类号： H04L12/28
CPC分类号： H04L12/437
摘要： A ring node device includes a main Resilient Packet Ring (RPR) card and a queued RPR card. Upon detection of disconnection of a communication link between the main RPR card and an L2/L3 switch, the ring node device exercises control to switch from the main RPR card to the queued RPR card and carries out communication with the L2/L3 switch.
摘要翻译： 环形节点设备包括主弹性分组环（RPR）卡和排队的RPR卡。 在检测到主RPR卡与L2 / L3交换机之间的通信链路断开时，环形节点设备进行控制，从主RPR卡切换到排队的RPR卡，并与L2 / L3交换机进行通信。
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公开(公告)号：US20080159300A1
公开(公告)日：2008-07-03
申请号：US12003284
申请日：2007-12-21
IPC分类号： H04L12/56
CPC分类号： H04L12/437
摘要： According to an aspect of an embodiment, a node apparatus used in at least part of nodes in a network formed by a plurality of nodes coupled in the shape of a ring, comprising: a working node function performing unit for performing functions as a working apparatus that selectively drops a frame destined for a terminal hosted by the node itself among frames transmitted on the ring and adds a frame from the terminal hosted by the node itself to frames transmitted on the ring; a back-up function performing unit for performing functions as a back-up apparatus that lets a frame destined for a terminal hosted by the node itself pass through to an adjacent node and discards a frame from the terminal hosted by the node itself; and a function selection unit for selectively enabling one of the working node function performing unit and the back-up function performing unit.
摘要翻译： 根据实施例的一个方面，一种节点装置，用于由以环形耦合的多个节点形成的网络中的至少部分节点，包括：工作节点功能执行单元，用于执行作为工作装置的功能 在由环上发送的帧中选择性地丢弃由节点本身托管的终端的帧，并将由节点本身托管的终端的帧添加到在环上发送的帧; 用于执行作为备用设备的功能的备用功能执行单元，所述备份设备允许发往由所述节点本身托管的终端的帧通过相邻节点并丢弃由所述节点本身托管的终端的帧; 以及功能选择单元，用于选择性地启动工作节点功能执行单元和备份功能执行单元之一。
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公开(公告)号：US07885181B2
公开(公告)日：2011-02-08
申请号：US12003284
申请日：2007-12-21
IPC分类号： H04L12/56
CPC分类号： H04L12/437
摘要： According to an aspect of an embodiment, a node apparatus used in at least part of nodes in a network formed by a plurality of nodes coupled in the shape of a ring, comprising: a working node function performing unit for performing functions as a working apparatus that selectively drops a frame destined for a terminal hosted by the node itself among frames transmitted on the ring and adds a frame from the terminal hosted by the node itself to frames transmitted on the ring; a back-up function performing unit for performing functions as a back-up apparatus that lets a frame destined for a terminal hosted by the node itself pass through to an adjacent node and discards a frame from the terminal hosted by the node itself; and a function selection unit for selectively enabling one of the working node function performing unit and the back-up function performing unit.
摘要翻译： 根据实施例的一个方面，一种节点装置，用于由以环形耦合的多个节点形成的网络中的至少部分节点，包括：工作节点功能执行单元，用于执行作为工作装置的功能 在由环上发送的帧中选择性地丢弃由节点本身托管的终端的帧，并将由节点本身托管的终端的帧添加到在环上发送的帧; 用于执行作为备用设备的功能的备用功能执行单元，所述备份设备允许发往由所述节点本身托管的终端的帧通过相邻节点并丢弃由所述节点本身托管的终端的帧; 以及功能选择单元，用于选择性地启动工作节点功能执行单元和备份功能执行单元之一。
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公开(公告)号：US08659477B2
公开(公告)日：2014-02-25
申请号：US13059363
申请日：2009-10-09
CPC分类号： H04W64/006 , G01S13/765 , G01S2013/466 , H04L27/02 , H04W24/00 , H04W88/08
摘要： Provided are a distance measuring device and a distance measuring method which can easily distinguish a reflected signal from a desired tag from an unnecessary wave so as to improve the distance measuring accuracy even when IR-UWB is used for measuring a distance. The method uses a reader ID indicated by a code string formed by P bits (P is a natural number) for identifying a base station and a tag ID indicated by a code string formed by Q bits (Q is a natural number) for identifying a radio terminal. The method generates a unique word containing P pulses, each of which is ON/OFF-modulated depending on whether each of P bits indicating the reader ID is 1 or 0. The method generates a frame containing 2 M unique words and a burst containing Q frames. The method further outputs a transmission signal containing a plurality of bursts. A radio terminal Amplitude Shift Keying (ASK)—modulates the transmission signal depending on whether each of the Q bits indicating the tag ID is 1 or 0. The ASK-modulated signal is sampling-received at timings of different phases by 1/M (M is an integer not smaller than 1) of the transmission clock cycle.
摘要翻译： 提供了一种距离测量装置和距离测量方法，其可以容易地将来自所需标签的反射信号与不需要的波分离，以便即使当使用IR-UWB来测量距离时也能够提高距离测量精度。 该方法使用由用于识别基站的P位（P是自然数）形成的代码串所指示的读取器ID以及由用于识别基站的Q位（Q是自然数）形成的代码串所指示的标签ID 无线电终端。 该方法生成包含P个脉冲的唯一字，每个脉冲根据指示读取器ID的P位中的每一个是1还是0来进行ON / OFF调制。该方法生成包含2M个唯一字和包含Q的突发的帧 框架。 该方法还输出包含多个突发的发送信号。 无线电终端振幅键控（ASK） - 根据指示标签ID的每个Q位是否为1或0来调制发送信号。ASK调制信号在不同相位的定时采样1 / M（ M是不小于1）的传输时钟周期的整数。
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公开(公告)号：US08520641B2
公开(公告)日：2013-08-27
申请号：US12979305
申请日：2010-12-27
IPC分类号： H04W4/00
CPC分类号： H04B1/7113 , G01S3/74 , H04B1/7117 , H04B7/0617 , H04B7/086 , H04B2201/70701 , H04B2201/70715 , H04L1/06
摘要： A receiver having an array antenna estimates arrival directions of multiple paths that arrive with an angular spread. Consequently, arrival direction estimation accuracy can be ensured without increasing throughput even if the power every path is low by estimating an average arrival direction of an entire set of multiple paths having the angular spread from a result of one angular spectrum by multiple correlation operation units that perform mutual correlation operations with pilot signals for baseband signals received by the array antenna, a path detection unit that detects multiple arrival path receiving timings by generating a delay profile based on output of each of the correlation operation units, a path correlation value synthesis unit that synthesizes a correlation operation value calculated in the multiple correlation operation units and an arrival direction estimation unit that collectively estimates multiple path arrival directions using output of the path correlation value synthesis unit.
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6.发明授权Radio arrival direction estimation device and radio arrival direction estimation method 有权无线电到达方向估计装置和无线电到达方向估计方法公开(公告)号：US08400357B2
公开(公告)日：2013-03-19
申请号：US13056825
申请日：2009-09-04
IPC分类号： G01S5/02
摘要： A radio arrival direction estimation device that accurately estimates the arrival direction of radio waves from a desired tag, even when there are multiple antennas disposed at short intervals. When ID detection timing is provided from a timing detector (114) to a switch (201), relative amplitude/phase data related to the tag ID digital value “1” or “0” is obtained by an arrival direction estimation unit (125). One relative amplitude/phase datum is formed for each unit cycle in a first adder (202), which adds the relative amplitude/phase datum related to the tag ID digital value “1” to each element in a matrix, and a second adder (203), which adds the relative amplitude/phase datum related to the tag ID digital value “0” to each element in a matrix. An OOK signal causes an arithmetic unit (204) to subtract the relative amplitude/phase data produced by the second adder (203) from the relative amplitude/phase data produced by the first adder (202), and extract the phase of a signal corresponding to the phase of the digital value “1.”
摘要翻译： 无线电到达方向估计装置，即使当以短间隔布置多个天线时，也能够从期望的标签精确地估计无线电波的到达方向。 当从定时检测器（114）向开关（201）提供ID检测定时时，通过到达方向估计单元（125）获得与标签ID数字值1或0相关的相对幅度/相位数据。 在第一加法器（202）中为每个单位周期形成一个相对幅度/相位数据，其将与标签ID数字值1相关的相对幅度/相位数据与矩阵中的每个元素相加，并且第二加法器（203） ，其将与标签ID数字值0相关的相对幅度/相位数据添加到矩阵中的每个元素。 OOK信号使算术单元（204）从由第一加法器（202）产生的相对幅度/相位数据中减去由第二加法器（203）产生的相对幅度/相位数据，并且提取相应的信号的相位 到数字值1的相位。
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7.发明申请RADIO TERMINAL DEVICE, RADIO BASE STATION DEVICE, RADIO RANGING SYSTEM, AND RADIO RANGING METHOD 有权无线终端设备，无线基站设备，无线范围系统和无线范围方法公开(公告)号：US20120044974A1
公开(公告)日：2012-02-23
申请号：US13266749
申请日：2010-04-20
CPC分类号： G01S13/767
摘要： Disclosed are a radio terminal device and the like, which achieve an improvement in the accuracy of ranging between a UWB reader and a UWB tag regardless of whether an active method or a semi-passive method. In a terminal (300), a timing control unit (340) outputs, to a transmission amplifier (350), a control signal for performing on-off control such that on the basis of the reception timing of a pulse signal transmitted from a base station (200) and a representative value of a circuit delay time required from when a reception pulse signal is received until a transmission pulse signal generated in response to a detection signal of the reception pulse signal is transmitted, the transmission amplifier (350) amplifies a reradiation pulse generated in response to a detection signal of the pulse signal transmitted from the base station (200); and a re-reradiation pulse generated in response to a detection signal of the reradiation pulse.
摘要翻译： 公开了无线终端装置等，无论是主动方式还是半被动方式，均能够实现UWB读取器与UWB标签之间的测距精度的提高。 在终端（300）中，定时控制单元（340）向发送放大器（350）输出用于执行开 - 关控制的控制信号，以便基于从基站发送的脉冲信号的接收定时 站（200）和从接收脉冲信号接收直到响应于接收脉冲信号的检测信号产生的发送脉冲信号所需的电路延迟时间的代表值，发送放大器（350）放大一个 响应于从基站（200）发送的脉冲信号的检测信号产生的再放射脉冲; 以及响应于所述再辐射脉冲的检测信号而产生的再放射脉冲。
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公开(公告)号：US20110181471A1
公开(公告)日：2011-07-28
申请号：US13079415
申请日：2011-04-04
IPC分类号： G01S3/14
CPC分类号： G01S3/043 , G01S3/14 , H04B7/086 , H04L27/2601
摘要： A device for estimating a direction-of-arrival of a radio wave, the device comprising an array antenna including a plurality of antenna elements for receiving a high frequency signal, a demultiplexer for demultiplexing the received high frequency signal for each of the plurality of antenna elements to generate a plurality of frequency component signals and a direction estimating unit for estimating the direction-of-arrival of the radio wave by using two or more of the plurality of frequency component signals which are contiguous in a frequency direction.
摘要翻译： 一种用于估计无线电波的到达方向的装置，该装置包括：阵列天线，包括用于接收高频信号的多个天线元件;解复用器，用于对接收到的多个天线中的每个天线的高频信号进行解复用 用于生成多个频率分量信号的单元;以及方向估计单元，用于通过使用在频率方向上连续的多个频率分量信号中的两个或更多个来估计无线电波的到达方向。
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公开(公告)号：US07593317B2
公开(公告)日：2009-09-22
申请号：US10503010
申请日：2003-08-01
IPC分类号： H04J11/00
CPC分类号： H01Q3/2605 , H01Q3/267 , H04B7/0617 , H04B7/086 , H04B17/10 , H04B17/12 , H04B17/18 , H04B17/20 , H04B17/21 , H04L1/06 , H04L27/2602 , H04L27/2626 , H04L27/2647
摘要： A transmission weight computing section computes a transmission weight for directional transmission using an OFDM signal. A transmission correcting value memory section stores one correcting value for correcting the transmission weight for each sub-carrier of an OFDM signal or each band gathering a plurality of sub-carriers. A transmission weight correcting section corrects the transmission weight by the correcting value. A transmitting branch weights transmission data by a transmission weight outputted from the transmission weight correcting section on a sub-carrier-by-sub-carrier basis and delivers it to an antenna.
摘要翻译： 传输权重计算部分使用OFDM信号来计算定向传输的传输权重。 发送校正值存储部存储用于校正OFDM信号的每个子载波的发送权重或收集多个子载波的每个频带的一个校正值。 发送权重校正部通过校正值来校正发送权重。 发送分支通过从子载波子载波基础上从发送加权校正部分输出的发送权重对发送数据进行加权，并将其发送到天线。
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公开(公告)号：US07333056B2
公开(公告)日：2008-02-19
申请号：US10524253
申请日：2003-09-26
IPC分类号： G01S5/02
CPC分类号： G01S3/043 , G01S3/14 , H04B7/086 , H04L27/2601
摘要： An adaptive antenna radio communication device comprises a divided band direction estimating unit (4) for estimating the direction by calculating the cross correlations between a pilot signal and sub-carrier signals of the respective divided bands received by an array antenna (1) and calculating a spatial profile from correlation matrices determined by combining the correlation values between antenna elements of the different sub-carriers according to the output of the cross correlation calculation; a divided band array weight creating unit (5) for creating a weight of a receive array having a directional beam in the direction of estimation for each divided band; and a sub-carrier directivity creating unit (6) for creating a directivity by multiplication-combining the created receive array weight with the corresponding sub-carrier signal.
摘要翻译： 一种自适应天线无线电通信装置包括：分频带方向估计单元，用于通过计算由阵列天线（1）接收的各个分频带的导频信号和副载波信号之间的互相关，来估计方向，并计算 通过根据互相关计算的输出组合不同子载波的天线元件之间的相关值确定的相关矩阵的空间分布; 分割带阵列权重创建单元（5），用于在每个分割频带的方向上产生具有定向波束的接收阵列的权重; 以及子载波方向性创建单元（6），用于通过将创建的接收阵列权重与相应的副载波信号相乘合成来产生方向性。
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