公开(公告)号：US20080008234A1

公开(公告)日：2008-01-10

申请号：US11890998

申请日：2007-08-08

Applicant: Ismail Lakkis

Inventor： Ismail Lakkis

IPC: H04B1/10

CPC classification number: H04L25/03057 ,  H04B1/71637 ,  H04B1/7183 ,  H04B1/719 ,  H04L2025/03503 ,  H04L2025/03617

Abstract: An equalizer comprising a hard decision block which feeds a FEC block and a shift register, which uses past estimates during a first iteration. The output of the FEC block is fed back to the shift register during a subsequent iteration to fully remove any inter chip interference.

Abstract translation: 一种均衡器，包括用于馈送FEC块的硬判决块和在第一次迭代期间使用过去估计的移位寄存器。 在后续迭代期间，FEC块的输出反馈到移位寄存器，以完全消除任何芯片间干扰。

公开(公告)号：US07257156B2

公开(公告)日：2007-08-14

申请号：US10948634

申请日：2004-09-23

Applicant: Ismail Lakkis

Inventor： Ismail Lakkis

IPC: H03Q7/30

CPC classification number: H04L25/03057 ,  H04B1/71637 ,  H04B1/7183 ,  H04B1/719 ,  H04L2025/03503 ,  H04L2025/03617

Abstract: An equalizer comprises a hard decision block which feeds an FEC block and a shift register, which uses past estimates during a first iteration. The output of the FEC block is fed back to the shift register during a subsequent iteration to fully remove any inter chip interference.

Abstract translation: 均衡器包括用于馈送FEC块和移位寄存器的硬判决块，其在第一次迭代期间使用过去的估计。 在后续迭代期间，FEC块的输出反馈到移位寄存器，以完全消除任何芯片间干扰。

公开(公告)号：US20060268775A1

公开(公告)日：2006-11-30

申请号：US11438911

申请日：2006-05-23

Applicant: Cathal O'Scolai ,  Baya Hatim ,  Joseph Roy ,  Saeid Safavi ,  Ismail Lakkis ,  Hoang Bui ,  Deirdre O'Shea ,  Masood Tayebi

Inventor： Cathal O'Scolai ,  Baya Hatim ,  Joseph Roy ,  Saeid Safavi ,  Ismail Lakkis ,  Hoang Bui ,  Deirdre O'Shea ,  Masood Tayebi

IPC: H04Q7/00

CPC classification number: H04W84/14 ,  H04J3/0685 ,  H04J3/1623

Abstract: A system and method providing a frame structure to received channel data sent over an air interface of a wireless communication system. The system and method may allow compensation for transmitting and receiving frequency variations, synchronization at the receiver, and provides a virtual signaling channel which may be used for system alarms and status. In one embodiment, the system uses bit stuffing, a frame preamble and a signaling preamble to transmit data at a high data rate in the ISM band.

公开(公告)号：US20050053121A1

公开(公告)日：2005-03-10

申请号：US10962935

申请日：2004-10-12

Applicant: Ismail Lakkis

Inventor： Ismail Lakkis

IPC: H04B1/69 ,  H04B7/02 ,  H04B7/06 ,  H04B7/08 ,  H04B7/10 ,  H04B7/12

CPC classification number: H04B7/068 ,  H04B1/71637 ,  H04B1/719 ,  H04B7/022 ,  H04B7/0667 ,  H04B7/0814 ,  H04B7/0894 ,  H04B7/10 ,  H04B7/12 ,  H04L1/0002 ,  H04L1/0026 ,  H04L1/06 ,  H04L1/0618 ,  H04L5/0005 ,  H04L5/0041 ,  H04L25/0204 ,  H04L25/0212 ,  H04L2025/0335 ,  H04L2025/03445 ,  H04L2025/03522

Abstract: Ultra-wideband (UWB) communication systems and apparatus are provided. One embodiment of an UWB receiver may include a first antenna that receives UWB pulses, and a second antenna that also receives UWB pulses. The UWB receiver also includes a delay element communicating with the second antenna, with the delay element delaying the UWB pulses received by the second antenna. A combiner in the receiver then combines the UWB pulses received by the first antenna with the delayed UWB pulses received by the second antenna. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.

Abstract translation: 提供超宽带（UWB）通信系统和设备。 UWB接收机的一个实施例可以包括接收UWB脉冲的第一天线和还接收UWB脉冲的第二天线。 UWB接收机还包括与第二天线通信的延迟元件，延迟元件延迟由第二天线接收的UWB脉冲。 接收机中的组合器然后将由第一天线接收的UWB脉冲与由第二天线接收的延迟的UWB脉冲组合。 本摘要仅用于遵守允许读者快速确定本文所包含的披露的主题的抽象要求规则。 本摘要以明确的理解提交，不会用于解释或限制权利要求的范围或含义。

公开(公告)号：US06768780B1

公开(公告)日：2004-07-27

申请号：US10060546

申请日：2002-01-29

Applicant: Ismail Lakkis ,  Deirdre O'Shea ,  Masood K. Tayebi ,  Baya Hatim

Inventor： Ismail Lakkis ,  Deirdre O'Shea ,  Masood K. Tayebi ,  Baya Hatim

IPC: H04L700

CPC classification number: H04W84/14 ,  H04L7/0029 ,  H04L7/027

Abstract: A system and method of timing estimation for use in a digital receiver within a communication system. An algorithm calculates the timing offset by evaluating the spectral component at the symbol clock frequency. The spectral component is generated using a nonlinearity operation. However, the maximum likelihood non-data-aided timing estimation equation reveals an alternative approximation for the logarithm of the hyperbolic cosine function present in the maximum likelihood equation, which offers a compromise between implementation complexity and variance performance. The estimated timing offset is then fed to a timing correction unit, which calculates the data samples corresponding to the sampling clock phase and removes the redundant samples. The ideal sampled signal is then forwarded to additional synchronization and functional units for further processing.

Abstract translation: 用于在通信系统内的数字接收机中使用的定时估计的系统和方法。 算法通过评估符号时钟频率的频谱分量来计算定时偏移。 使用非线性运算产生频谱分量。 然而，最大似然非数据辅助定时估计方程揭示了最大似然方程中存在的双曲余弦函数的对数的替代近似，这提供了实现复杂度和方差性能之间的折中。 然后将估计的定时偏移馈送到定时校正单元，该定时校正单元计算对应于采样时钟相位的数据采样并且去除冗余采样。 然后将理想采样信号转发到附加的同步和功能单元进行进一步处理。

公开(公告)号：US09094108B2

公开(公告)日：2015-07-28

申请号：US12430100

申请日：2009-04-26

Applicant: Ismail Lakkis

Inventor： Ismail Lakkis

IPC: H04B1/707 ,  H04B1/7093 ,  H04J13/00 ,  H04J13/10

CPC classification number: H04B1/707 ,  H04B1/7093 ,  H04J13/0014 ,  H04J13/107

Abstract: A method for communicating comprises generating at least one generalized Golay code from a concatenation of constituent Golay codes, and spreading at least a portion of a data stream with the at least one generalized Golay code. Generalized Golay codes comprise pseudo-complementary sequences having code lengths that differ from Golay complementary sequences and are characterized by low autocorrelation sidelobes relative to the autocorrelation peak.

Abstract translation: 一种用于通信的方法包括从组合Golay码的级联生成至少一个通用的Golay码，以及利用所述至少一个通用Golay码来扩展数据流的至少一部分。 广义Golay码包括具有与Golay互补序列不同的码长的伪互补序列，并且相对于自相关峰的特征在于低自相关旁瓣。

公开(公告)号：US20150036773A1

公开(公告)日：2015-02-05

申请号：US13956303

申请日：2013-07-31

Applicant: Ismail Lakkis

Inventor： Ismail Lakkis

IPC: H04B1/52

CPC classification number: H04B1/525

Abstract: In a millimeter-wave radar, full-duplex operation is achieved by measuring a time interval during which a leakage signal is present in a digital baseband received signal, generating samples of the digital baseband received signal, and masking a subset of the samples corresponding to the time interval, which removes the leakage signal from the digital baseband received signal. The step of measuring the time interval may be performed during a calibration phase during which desired signals are suppressed.

Abstract translation: 在毫米波雷达中，通过测量在数字基带接收信号中存在泄漏信号的时间间隔，产生数字基带接收信号的样本，以及屏蔽对应于 时间间隔，其从数字基带接收信号中去除泄漏信号。 测量时间间隔的步骤可以在期望信号被抑制的校准阶段期间执行。

公开(公告)号：US08910027B2

公开(公告)日：2014-12-09

申请号：US11599725

申请日：2006-11-15

Applicant: Ismail Lakkis

Inventor： Ismail Lakkis

IPC: H03M13/15 ,  H03M13/00

CPC classification number: H03M13/1505 ,  H03M13/611 ,  H03M13/618

Abstract: A Golay-code generator configured for generating Golay complementary code pairs comprises a sequence of delay elements configured for providing a predetermined set of fixed delays to at least a first input signal and a sequence of adaptable seed vector insertion elements configured for multiplying at least a second input signal by a variable seed vector, wherein each of a plurality of seed vectors corresponds to at least one predetermined piconet. The Golay-code generator may further comprise multiplexers configured for switching inputs and outputs of at least two delay elements in the sequence of delay elements to produce a plurality of compatible delay vectors. The Golay-code generator may further comprise a code-truncation module configured to shorten the Golay complementary code pairs for producing a plurality of daughter codes.

Abstract translation: 被配置用于产生Golay互补码对的Golay码发生器包括被配置用于向至少第一输入信号提供预定的固定延迟集合的一系列延迟元件和被配置为将至少第二个 输入信号，其中多个种子矢量中的每一个对应于至少一个预定的微微网。 格雷码生成器还可以包括多路复用器，其被配置用于切换延迟元件序列中的至少两个延迟元件的输入和输出，以产生多个兼容的延迟向量。 格雷码生成器还可以包括代码截断模块，其被配置为缩短用于产生多个子代码的Golay互补代码对。

公开(公告)号：US20140314137A1

公开(公告)日：2014-10-23

申请号：US13867550

申请日：2013-04-22

Applicant: Ismail Lakkis

Inventor： Ismail Lakkis

IPC: H04L25/03

CPC classification number: H04L25/03006 ,  H04L2025/03535

Abstract: A method of communication comprises partitioning a single-carrier data stream into equal-size blocks, and partitioning each block into a plurality of equal-size sub-blocks. A first set of cyclic prefixes and/or postfixes is inserted into the blocks to allow a linear convolution of a frequency-selective multipath channel having a long delay spread to be modeled as a circular convolution at a receiver. A second set of cyclic prefixes and/or postfixes is inserted into the sub-blocks to allow a linear convolution of a frequency-selective multipath channel having a short delay spread to be modeled as a circular convolution at the receiver. Upon receiving a transmitted data frame from the multipath channel, the receiver measures a link quality index (LQI) of a short channel impulse response; and selects block-by-block equalization or sub-block by sub-block equalization based on the LQI.

Abstract translation: 一种通信方法包括将单载波数据流划分成相等大小的块，并将每个块划分成多个相等大小的子块。 将第一组循环前缀和/或后缀插入块中以允许具有长延迟扩展的频率选择性多径信道的线性卷积在接收机处被建模为循环卷积。 将第二组循环前缀和/或后缀插入到子块中，以允许具有短延迟扩展的频率选择性多径信道的线性卷积在接收机处被建模为循环卷积。 在接收到来自多路径信道的传输数据帧时，接收机测量短信道脉冲响应的链路质量指数（LQI）; 并通过基于LQI的子块均衡来选择逐块均衡或子块。

公开(公告)号：US08856628B2

公开(公告)日：2014-10-07

申请号：US12248775

申请日：2008-10-09

Applicant: Ismail Lakkis

Inventor： Ismail Lakkis

IPC: H03M13/00 ,  H04B1/707 ,  H04B1/69

CPC classification number: H04B1/69 ,  H04B1/707

Abstract: A wireless device comprises a code-assignment module configured for assigning Golay codes to be used for spreading, a spreading module configured for spreading data with the Golay codes to produce a signal, wherein the Golay codes are randomly used to spread the data, and a transmitter configured for transmitting the signal. The wireless device may transmit a first beacon signal via a set of quasi-omni beam patterns, and a second beacon signal via a set directional beam patterns. The first beacon signal has a first transmission rate that is higher than the second beacon signal's transmission rate. Extended Golay codes having zero periodic cross-correlation may be generated from a Golay code and a set of short sequences. A data block transmitted by the wireless device may comprise Golay codes and data portions, wherein every data portion is between two Golay codes and every Golay code is between two data portions.

Abstract translation: 一种无线装置，包括配置用于分配要用于扩展的Golay码的码分配模块，配置成用Golay码扩展数据以产生信号的扩展模块，其中随机使用Golay码来传播数据， 发射机被配置为发送信号。 无线设备可以经由一组准全波束模式发送第一信标信号，并且经由设置的定向波束模式发送第二信标信号。 第一信标信号具有比第二信标信号的传输速率高的第一传输速率。 可以从Golay码和一组短序列生成具有零周期互相关的扩展Golay码。 由无线设备发送的数据块可以包括Golay码和数据部分，其中每个数据部分在两个Golay码之间，并且每个Golay码在两个数据部分之间。