PHASE TRACKING IN FREQUENCY DOMAIN IN A WIRELESS COMMUNICATION SYSTEM
    1.
    发明申请
    PHASE TRACKING IN FREQUENCY DOMAIN IN A WIRELESS COMMUNICATION SYSTEM 失效
    无线通信系统中频域中的相位跟踪

    公开(公告)号:US20100260233A1

    公开(公告)日:2010-10-14

    申请号:US12423363

    申请日:2009-04-14

    IPC分类号: H04B1/713 H04L27/00

    摘要: Techniques for correcting sampling frequency offset (SFO) and carrier frequency offset (CFO) in a wireless communication system are disclosed. An apparatus for correcting SFO and CFO may include a pilot tone extractor for extracting a plurality of pilot tones from one or more first symbols, a demodulator, an error signal generator, a loop filter, an angle generator, and a device for applying a correction phase to one or more symbols subsequent to the one or more first symbols. The demodulator is configured to demodulate the pilot tones. The error signal generator is configured to generate an error signal by summing and calculating the arctangent of the plurality of demodulated pilot tones. The loop filter is configured to generate an estimated phase rotation due to a residual CFO and the angle generator is configured to generate a correction phase for the plurality of tones.

    摘要翻译: 公开了用于在无线通信系统中校正采样频率偏移(SFO)和载波频率偏移(CFO)的技术。 用于校正SFO和CFO的装置可以包括用于从一个或多个第一符号提取多个导频音调的导频音提取器,解调器,误差信号发生器,环路滤波器,角度发生器和用于应用校正的装置 相位到一个或多个第一符号之后的一个或多个符号。 解调器被配置为解调导频音调。 误差信号发生器被配置为通过求和并计算多个解调导频音的反正切来产生误差信号。 环路滤波器被配置为由于残余CFO而产生估计的相位旋转,并且角度发生器被配置为产生用于多个音调的校正相位。

    Phase tracking in frequency domain in a wireless communication system
    2.
    发明授权
    Phase tracking in frequency domain in a wireless communication system 失效
    无线通信系统中频域的相位跟踪

    公开(公告)号:US08265181B2

    公开(公告)日:2012-09-11

    申请号:US12423363

    申请日:2009-04-14

    IPC分类号: H04L27/28

    摘要: Techniques for correcting sampling frequency offset (SFO) and carrier frequency offset (CFO) in a wireless communication system are disclosed. An apparatus for correcting SFO and CFO may include a pilot tone extractor for extracting a plurality of pilot tones from one or more first symbols, a demodulator, an error signal generator, a loop filter, an angle generator, and a device for applying a correction phase to one or more symbols subsequent to the one or more first symbols. The demodulator is configured to demodulate the pilot tones. The error signal generator is configured to generate an error signal by summing and calculating the arctangent of the plurality of demodulated pilot tones. The loop filter is configured to generate an estimated phase rotation due to a residual CFO and the angle generator is configured to generate a correction phase for the plurality of tones.

    摘要翻译: 公开了用于在无线通信系统中校正采样频率偏移(SFO)和载波频率偏移(CFO)的技术。 用于校正SFO和CFO的装置可以包括用于从一个或多个第一符号提取多个导频音调的导频音提取器,解调器,误差信号发生器,环路滤波器,角度发生器和用于应用校正的装置 相位到一个或多个第一符号之后的一个或多个符号。 解调器被配置为解调导频音调。 误差信号发生器被配置为通过求和并计算多个解调导频音的反正切来产生误差信号。 环路滤波器被配置为由于残余CFO而产生估计的相位旋转,并且角度发生器被配置为产生用于多个音调的校正相位。

    Method of channel estimation and a channel estimator
    4.
    发明授权
    Method of channel estimation and a channel estimator 失效
    信道估计方法和信道估计

    公开(公告)号:US08605804B2

    公开(公告)日:2013-12-10

    申请号:US13085619

    申请日:2011-04-13

    IPC分类号: H04L27/28

    CPC分类号: H04L25/0232

    摘要: The method includes receiving a signal comprising a symbol-carrier matrix, the symbol-carrier matrix including a predetermined pattern of pilot symbols, and determining first channel estimates at pilot symbol positions of the pilot symbols in the symbol-carrier matrix. The method further includes correcting the first channel estimates at the pilot symbol positions using Bayesian estimation, and determining second channel estimates at symbol positions other than the pilot symbol positions using interpolation based on the correct first channel estimates.

    摘要翻译: 所述方法包括:接收包括符号 - 载波矩阵的信号,所述符号 - 载波矩阵包括导频符号的预定模式,以及在所述符号 - 载波矩阵中的导频符号的导频符号位置处确定第一信道估计。 该方法还包括使用贝叶斯估计校正在导频符号位置处的第一信道估计,以及使用基于正确的第一信道估计的内插,在导频符号位置之外的符号位置处确定第二信道估计。

    Interferometric measuring device
    5.
    发明授权
    Interferometric measuring device 有权
    干涉测量装置

    公开(公告)号:US07889354B2

    公开(公告)日:2011-02-15

    申请号:US12067501

    申请日:2006-09-15

    IPC分类号: G01B11/02

    摘要: A device for an interferometric measuring device having a first interferometer and a second interferometer, short coherent radiation being supplied to the first interferometer via a radiation source which is split into to beam components by a first beam splitter; and the optical path length in a beam component being longer than in the other beam component to the effect that the optical path difference is greater than the coherence length of the radiation; before emerging from the first interferometer, the two beam components being recombined and supplied to the second interferometer, which splits the radiation into two additional beam components; the optical path lengths of the two beam components being different to the effect that the optical path difference registered in the first interferometer is balanced again; the optical path length for the respective beam component in the first and the second interferometer being able to be set by at least one movable optical component, and the movable optical components are coupled to each other mechanically. A method for balancing an optical path difference in such an interferometric measuring device, the optical path differences between the beam components being changed in the two interferometers by mechanically coupled movable optical components at the same time and by the same absolute amount. By doing this, path differences in the beam components of the interferometers are able to be varied in one working step, the conditions for the formation of interference being complied with.

    摘要翻译: 一种用于具有第一干涉仪和第二干涉仪的干涉测量装置的装置,短的相干辐射经由辐射源提供给第一干涉仪,该辐射源通过第一分束器分成束分量; 并且光束分量中的光路长度比另一个光束分量中的光程长度大,使得光程差大于辐射的相干长度; 在从第一干涉仪出射之前,将两个光束分量重新组合并提供给第二干涉仪,其将辐射分成两个额外的光束分量; 两个光束分量的光路长度不同于第一干涉仪中记录的光路差异再次平衡的影响; 第一和第二干涉仪中的各个光束分量的光路长度能够由至少一个可移动光学部件设置,并且可移动的光学部件彼此机械耦合。 一种用于平衡这种干涉测量装置中的光程差的方法,通过机械耦合的可移动光学部件同时和相同的绝对量在两个干涉仪之间改变光束分量之间的光程差。 通过这样做,可以在一个工作步骤中改变干涉仪的光束分量中的路径差异,从而达到形成干扰的条件。

    Interferometric measuring device
    6.
    发明申请
    Interferometric measuring device 有权
    干涉测量装置

    公开(公告)号:US20070268584A1

    公开(公告)日:2007-11-22

    申请号:US11652942

    申请日:2007-01-11

    IPC分类号: G02B27/00

    摘要: The present invention relates to an interferometric measuring device having a short-coherent radiation source, a modulation interferometer and a downstream reference interferometer connected thereto. The mechanical coupling between the reference interferometer and the modulation interferometer is provided with a backlash. For equalizing an optical path difference in the interferometric measuring device, an optical path difference established in the modulation interferometer is reset in the reference interferometer. The optical path differences between the partial beams in the modulation interferometer and between the partial beams in the reference interferometer may be changed via optical components mechanically coupled with the aid of a backlash, the movable optical component of the reference interferometer following a movement of the movable optical component of the modulation interferometer after passing a backlash distance in the backlash.

    摘要翻译: 本发明涉及具有短相干辐射源,调制干涉仪和连接到其上的下行参考干涉仪的干涉测量装置。 参考干涉仪与调制干涉仪之间的机械耦合提供了间隙。 为了均衡干涉测量装置中的光程差,在参考干涉仪中复位在调制干涉仪中建立的光程差。 调制干涉仪中的部分光束和参考干涉仪中的部分光束之间的光程差可以通过借助于间隙机械耦合的光学部件来改变,参考干涉仪的可移动光学部件跟随可移动的移动 通过间隙中的间隙距离后的调制干涉仪的光学部件。

    Coupling device for a light guide
    7.
    发明申请
    Coupling device for a light guide 有权
    用于光导的耦合装置

    公开(公告)号:US20070122079A1

    公开(公告)日:2007-05-31

    申请号:US11580628

    申请日:2006-10-12

    IPC分类号: G02B6/26 G02B6/42

    CPC分类号: G02B6/32 G02B6/3886

    摘要: A device for coupling beam guides of optical systems for unidirectional or bidirectional transmission of beams via a beam transition between the optical systems is provided, the device having a connecting device and mechanical centering means. The connecting device provides a magnetic coupling for implementing a coupling connection in a coupling area. The centering means are situated opposite one another on the optical systems and coupled in such a way to cause the beam guides to self-center due to the attraction caused by the magnetic forces.

    摘要翻译: 提供了一种用于耦合用于通过光学系统之间的光束过渡来单向或双向传输光束的光学系统的装置,该装置具有连接装置和机械定心装置。 连接装置提供用于在耦合区域中实现耦合连接的磁耦合。 定心装置在光学系统上彼此相对设置并且以这样的方式耦合,以使得光束引导件由于由磁力引起的吸引力而自对中心。

    Measuring instrument and measuring method featuring dynamic channel allocation
    8.
    发明授权
    Measuring instrument and measuring method featuring dynamic channel allocation 有权
    具有动态通道分配功能的测量仪器和测量方法

    公开(公告)号:US09234927B2

    公开(公告)日:2016-01-12

    申请号:US13266117

    申请日:2010-02-10

    IPC分类号: G01R27/28 G01R1/02

    CPC分类号: G01R27/28 G01R1/025

    摘要: A measuring device including a control device, at least two ports, at least two measurement channels and at least two display devices. The control device assigns ports to the measurement channels and connects the measurement channels to these ports internally, at least logically. In this context, one display device is assigned to every port. The display devices allocated to the ports display information, which relates to the present assignment and/or utilization of the respective ports.

    摘要翻译: 一种包括控制装置,至少两个端口,至少两个测量通道和至少两个显示装置的测量装置。 控制设备将端口分配给测量通道,并至少在逻辑上将测量通道连接到内部的这些端口。 在这种情况下,一个显示设备被分配给每个端口。 分配给端口的显示设备显示与各端口的当前分配和/或利用有关的信息。

    MEMEROY CIRCUITS, METHOD FOR ACCESSING A MEMORY AND METHOD FOR REPAIRING A MEMORY
    9.
    发明申请
    MEMEROY CIRCUITS, METHOD FOR ACCESSING A MEMORY AND METHOD FOR REPAIRING A MEMORY 有权
    MEMORYY CIRCUITS,用于访问存储器的方法和用于修复存储器的方法

    公开(公告)号:US20140245106A1

    公开(公告)日:2014-08-28

    申请号:US13773832

    申请日:2013-02-22

    IPC分类号: G06F11/10

    摘要: A memory circuit is described comprising a plurality of memory elements, wherein each memory element is configured to store one data element of a plurality of data elements, an error correction information memory configured to store joint error correction information of the plurality of data elements, for each memory element, an error detection information memory storing error detection information for the data element stored in the memory element and a memory access circuit configured to, for an access to a memory element of the plurality of memory elements, check whether the error detection information for the data element stored in the memory element indicates an error of the data element stored in the memory element and, depending on whether the error detection information for the data element stored in the memory element indicates an error of the data element stored in the memory element, to process the error correction information for the access.

    摘要翻译: 描述了包括多个存储器元件的存储器电路,其中每个存储器元件被配置为存储多个数据元素中的一个数据元素,错误校正信息存储器被配置为存储多个数据元素的联合纠错信息,用于 每个存储器元件,存储存储在存储元件中的数据元素的错误检测信息的错误检测信息存储器以及用于访问多个存储器元件的存储元件的存储器访问电路,检查错误检测信息 对于存储在存储元件中的数据元素,指示存储在存储元件中的数据元素的错误,并且根据存储在存储元件中的数据元素的错误检测信息是否指示存储在存储器中的数据元素的错误 元素,以处理访问的纠错信息。

    MEASURING INSTRUMENT AND MEASURING METHOD FEATURING DYNAMIC CHANNEL ALLOCATION
    10.
    发明申请
    MEASURING INSTRUMENT AND MEASURING METHOD FEATURING DYNAMIC CHANNEL ALLOCATION 有权
    测量仪器和测量方法特征动态通道分配

    公开(公告)号:US20120112985A1

    公开(公告)日:2012-05-10

    申请号:US13266117

    申请日:2010-02-10

    IPC分类号: G09G5/00

    CPC分类号: G01R27/28 G01R1/025

    摘要: A measuring device including a control device, at least two ports, at least two measurement channels and at least two display devices. The control device assigns ports to the measurement channels and connects the measurement channels to these ports internally, at least logically. In this context, one display device is assigned to every port. The display devices allocated to the ports display information, which relates to the present assignment and/or utilisation of the respective ports.

    摘要翻译: 一种包括控制装置,至少两个端口,至少两个测量通道和至少两个显示装置的测量装置。 控制设备将端口分配给测量通道,并至少在逻辑上将测量通道连接到内部的这些端口。 在这种情况下,一个显示设备被分配给每个端口。 分配给端口的显示设备显示与各端口的当前分配和/或利用有关的信息。