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Patent Agency Ranking
公开(公告)号：US09036746B2
公开(公告)日：2015-05-19
申请号：US14481931
申请日：2014-09-10
Applicant: Marvell World Trade Ltd.
Inventor： Yona Perets , Daniel Yellin , Kobby Pick , Ronen Mayrench
CPC classification number: H04B1/12 , H04L5/0007 , H04L25/0222 , H04L27/2657
Abstract: A method includes holding in a memory of a communication terminal multiple predefined vectors, each including signal autocorrelation values computed for a respective Doppler shift. A signal is received, and empirical autocorrelation values are calculated for the received signal. An actual Doppler shift of the received signal is estimated by selecting, from among the predefined vectors, a vector whose autocorrelation values best match the empirical autocorrelation values of the received signal.
Abstract translation: 一种方法包括在通信终端的存储器中保存多个预定义向量，每个预定向量包括为相应的多普勒频移计算的信号自相关值。 接收信号，并计算接收信号的经验自相关值。 通过从预定矢量中选择自相关值与接收信号的经验自相关值最匹配的矢量来估计接收信号的实际多普勒频移。
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2.发明授权Direct generation of discrete Fourier transforms of time-shifted Zadoff-Chu sequences 有权直接生成时变Zadoff-Chu序列的离散傅里叶变换公开(公告)号：US09036555B2
公开(公告)日：2015-05-19
申请号：US13875325
申请日：2013-05-02
Applicant: Marvell World Trade Ltd.
Inventor： Tal Shalev , Ezer Melzer , Kobby Pick
CPC classification number: H04L27/2602 , H04J13/0062 , H04J13/14 , H04L27/2628
Abstract: A method includes accepting input values u and v, respectively identifying a uth root Zadoff-Chu sequence whose length is a prime number, and a vth cyclic shift for the sequence. Elements of a Discrete Fourier Transform (DFT) of the vth cyclic shift of the uth root Zadoff-Chu sequence are computed using processing circuitry, by evaluating a single respective exponent depending on u and v in computing each of the elements.
Abstract translation: 一种方法包括接受分别识别长度为素数的uth根Zadoff-Chu序列的输入值u和v以及该序列的第v次循环移位。 使用处理电路计算uth根Zadoff-Chu序列的第v次循环移位的离散傅立叶变换（DFT）的元素，通过在计算每个元素时评估依赖于u和v的单个相应指数。
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公开(公告)号：US20150071388A1
公开(公告)日：2015-03-12
申请号：US14481931
申请日：2014-09-10
Applicant: Marvell World Trade Ltd.
Inventor： Yona Perets , Daniel Yellin , Kobby Pick , Ronen Mayrench
CPC classification number: H04B1/12 , H04L5/0007 , H04L25/0222 , H04L27/2657
Abstract: A method includes holding in a memory of a communication terminal multiple predefined vectors, each including signal autocorrelation values computed for a respective Doppler shift. A signal is received, and empirical autocorrelation values are calculated for the received signal. An actual Doppler shift of the received signal is estimated by selecting, from among the predefined vectors, a vector whose autocorrelation values best match the empirical autocorrelation values of the received signal.
Abstract translation: 一种方法包括在通信终端的存储器中保存多个预定义向量，每个预定向量包括为相应的多普勒频移计算的信号自相关值。 接收信号，并计算接收信号的经验自相关值。 通过从预定矢量中选择自相关值与接收信号的经验自相关值最匹配的矢量来估计接收信号的实际多普勒频移。
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公开(公告)号：US08942318B1
公开(公告)日：2015-01-27
申请号：US14060308
申请日：2013-10-22
Applicant: Marvell World Trade Ltd.
Inventor： Kobby Pick , Yona Perets
Abstract: Briefly, a method and apparatus to calculate cross-correlation values of complex binary sequences are provided. The apparatus may include a transformation unit and a cross-correlator. The cross-correlator may include a cross-correlation controller to provide, based on a type bit and a sign bit, a real component and/or an imaginary component of signals of complex binary sequences to a real accumulator and/or to an imaginary accumulator.
Abstract translation: 简而言之，提供了计算复数二进制序列的互相关值的方法和装置。 该装置可以包括变换单元和互相关器。 互相关器可以包括互相关控制器，用于基于类型比特和符号比特将复数二进制序列的信号的实数分量和/或虚分量提供给真实累加器和/或虚拟累加器 。
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5.发明申请DIRECT GENERATION OF DISCRETE FOURIER TRANSFORMS OF TIME-SHIFTED ZADOFF-CHU SEQUENCES 审中-公开时变ZADOFF-CHU序列的离散傅立叶变换的直接生成公开(公告)号：US20130242869A1
公开(公告)日：2013-09-19
申请号：US13875325
申请日：2013-05-02
Applicant: MARVELL WORLD TRADE LTD.
Inventor： Tal Shalev , Ezer Melzer , Kobby Pick
IPC: H04L27/26
CPC classification number: H04L27/2602 , H04J13/0062 , H04J13/14 , H04L27/2628
Abstract: A method includes accepting input values u and v, respectively identifying a uth root Zadoff-Chu sequence whose length is a prime number, and a vth cyclic shift for the sequence. Elements of a Discrete Fourier Transform (DFT) of the vth cyclic shift of the uth root Zadoff-Chu sequence are computed using processing circuitry, by evaluating a single respective exponent depending on u and v in computing each of the elements.
Abstract translation: 一种方法包括接受分别识别长度为素数的uth根Zadoff-Chu序列的输入值u和v以及该序列的第v次循环移位。 使用处理电路计算uth根Zadoff-Chu序列的第v次循环移位的离散傅立叶变换（DFT）的元素，通过在计算每个元素时评估依赖于u和v的单个相应指数。
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