公开(公告)号：US08442129B2

公开(公告)日：2013-05-14

申请号：US12877106

申请日：2010-09-08

申请人： Tal Shalev ,  Ezer Melzer ,  Kobby Pick

发明人： Tal Shalev ,  Ezer Melzer ,  Kobby Pick

IPC分类号： H04L27/00

CPC分类号： H04L27/2602 ,  H04J13/0062 ,  H04J13/14 ,  H04L27/2628

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20110129021A1

公开(公告)日：2011-06-02

申请号：US12877106

申请日：2010-09-08

申请人： Tal Shalev ,  Ezer Melzer ,  Kobby Pick

发明人： Tal Shalev ,  Ezer Melzer ,  Kobby Pick

IPC分类号： H04L27/00

CPC分类号： H04L27/2602 ,  H04J13/0062 ,  H04J13/14 ,  H04L27/2628

摘要： 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.

摘要翻译： 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。

公开(公告)号：US08576954B1

公开(公告)日：2013-11-05

申请号：US13599824

申请日：2012-08-30

申请人： Kobby Pick ,  Yona Perets

发明人： Kobby Pick ,  Yona Perets

IPC分类号： H04L27/22

CPC分类号： H04L27/22 ,  G06F17/15 ,  H04B1/707 ,  H04B1/709

摘要： 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.

公开(公告)号：US20050129142A1

公开(公告)日：2005-06-16

申请号：US10734117

申请日：2003-12-15

申请人： Daniel Yellin ,  Kobby Pick

发明人： Daniel Yellin ,  Kobby Pick

IPC分类号： H03C3/09 ,  H03F3/24 ,  H04L27/36 ,  H03C3/00

CPC分类号： H03F3/24 ,  H03C3/0925 ,  H03C3/0933 ,  H03F2200/331 ,  H04L27/361

摘要： In some exemplary embodiments of the invention, a transfer function of a filter for a fractional-N sigma-delta modulator may be calculated to be optimized according to predefined optimization criteria. For example, the optimization criteria may include spectral cleanliness at the output of the modulator, or the mean squared error of the input to the filter and the input to a voltage controlled oscillator of the fractional-N phase locked loop (PLL). In some exemplary embodiments, the filter may be adjusted to compensate for variations and/or impairments in the analog fractional-N PLL. A non-exhaustive list of examples for the transfer function includes a finite impulse response and an infinite impulse response.

摘要翻译： 在本发明的一些示例性实施例中，可以计算用于分数N个Σ-Δ调制器的滤波器的传递函数，以根据预定义的优化标准进行优化。 例如，优化标准可以包括在调制器的输出处的光谱清洁度，或者到滤波器的输入的平均误差以及分数N锁相环（PLL）的压控振荡器的输入。 在一些示例性实施例中，可以调整滤波器以补偿模拟分数N PLL中的变化和/或损伤。 传递函数示例的非穷举列表包括有限脉冲响应和无限脉冲响应。

公开(公告)号：US07912145B2

公开(公告)日：2011-03-22

申请号：US10734117

申请日：2003-12-15

申请人： Daniel Yellin ,  Kobby Pick

发明人： Daniel Yellin ,  Kobby Pick

IPC分类号： H04L27/00

CPC分类号： H03F3/24 ,  H03C3/0925 ,  H03C3/0933 ,  H03F2200/331 ,  H04L27/361

摘要： In some exemplary embodiments of the invention, a transfer function of a filter for a fractional-N sigma-delta modulator may be calculated to be optimized according to predefined optimization criteria. For example, the optimization criteria may include spectral cleanliness at the output of the modulator, or the mean squared error of the input to the filter and the input to a voltage controlled oscillator of the fractional-N phase locked loop (PLL). In some exemplary embodiments, the filter may be adjusted to compensate for variations and/or impairments in the analog fractional-N PLL. A non-exhaustive list of examples for the transfer function includes a finite impulse response and an infinite impulse response.

摘要翻译： 在本发明的一些示例性实施例中，可以计算用于分数N个Σ-Δ调制器的滤波器的传递函数，以根据预定义的优化标准进行优化。 例如，优化标准可以包括在调制器的输出处的光谱清洁度，或者到滤波器的输入的平均误差以及分数N锁相环（PLL）的压控振荡器的输入。 在一些示例性实施例中，可以调整滤波器以补偿模拟分数N PLL中的变化和/或损伤。 传递函数示例的非穷举列表包括有限脉冲响应和无限脉冲响应。

公开(公告)号：US07042926B2

公开(公告)日：2006-05-09

申请号：US09990035

申请日：2001-11-21

申请人： Daniel Yellin ,  Kobby Pick ,  Yoni Perets

发明人： Daniel Yellin ,  Kobby Pick ,  Yoni Perets

IPC分类号： H04B1/707

CPC分类号： H04B1/71055 ,  H04L25/0232

摘要： A multi-user detector for use in a CDMA receiver system includes a channel tap interpolator to generate interpolated channel taps for users of interest. The interpolated channel taps occur at integer multiples of a chip period from a sampling reference point. The channel tap interpolation allows detection processing to proceed in the chip domain, rather than in the sample domain, thus reducing the complexity of the multi-user solution significantly. In at least one approach, a number of low dimensionality “virtual” users are defined based on the recursive property of the spreading sequences. Solutions may then be developed for the virtual users using conventional detection (e.g., MMSE) techniques.

公开(公告)号：US20060045203A1

公开(公告)日：2006-03-02

申请号：US10930857

申请日：2004-09-01

申请人： Daniel Yellin ,  Kobby Pick

发明人： Daniel Yellin ,  Kobby Pick

IPC分类号： H04L27/20

CPC分类号： H04L27/368

摘要： Briefly, according to some embodiments of the invention a method and apparatus to generate a filter are provided. The apparatus may include a phase modulation unit to vary a phase component of a signal, a measurement unit to measure a parameter of the phase modulation unit and a filter generator to generate a filter based on the parameter. In some embodiments of the invention, the filter is adapted to provide a compensated signal to the phase modulation unit to compensate for deviation of the parameter.

公开(公告)号：US08259851B1

公开(公告)日：2012-09-04

申请号：US12268973

申请日：2008-11-11

申请人： Kobby Pick ,  Yona Perets

发明人： Kobby Pick ,  Yona Perets

IPC分类号： H04L27/04

CPC分类号： H04L27/22 ,  G06F17/15 ,  H04B1/707 ,  H04B1/709

摘要： 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.

摘要翻译： 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 。

公开(公告)号：US07450631B2

公开(公告)日：2008-11-11

申请号：US10053490

申请日：2001-10-26

申请人： Kobby Pick ,  Daniel Yellin ,  Yoni Perets ,  Lev Smolyar

发明人： Kobby Pick ,  Daniel Yellin ,  Yoni Perets ,  Lev Smolyar

IPC分类号： H04B1/69 ,  H04B1/707 ,  H04B1/713

CPC分类号： H04L1/005 ,  H03M13/37 ,  H04B1/7103 ,  H04L25/067

摘要： A receiver in a wireless communication system utilizes a metric to minimize the error probability in transmitted information. The receiver may use a detector utilizing multiuser detection or rake detection. The output symbols of the detector are examined and a metric is obtained related to the noise and interference that may have distorted the transmission of the symbol. This metric is supplied to a channel decoder along with the symbol to improve decoding.

摘要翻译： 无线通信系统中的接收机利用度量来最小化发送信息中的错误概率。 接收机可以使用利用多用户检测或耙检测的检测器。 检查检测器的输出符号，并且获得与可能使符号的传输失真的噪声和干扰相关的度量。 该度量与符号一起提供给信道解码器以改善解码。

公开(公告)号：US07203253B2

公开(公告)日：2007-04-10

申请号：US10254974

申请日：2002-09-26

申请人： Kobby Pick ,  Yona Perets

发明人： Kobby Pick ,  Yona Perets

IPC分类号： H03D3/22 ,  H04L27/22

CPC分类号： H04L27/22 ,  G06F17/15 ,  H04B1/707 ,  H04B1/709

摘要： 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.

摘要翻译： 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 。