公开(公告)号：US20140333352A1

公开(公告)日：2014-11-13

申请号：US13893251

申请日：2013-05-13

Applicant: Ismail Lakkis

Inventor： Ismail Lakkis

IPC: H03L7/06

CPC classification number: H03L7/06 ,  H03L7/07 ,  H03L7/0807 ,  H03L7/0814 ,  H04L7/0331

Abstract: A clock a data recovery circuit (CDR) operates recovers data from a serial input signal. The CDR uses oversampling to sample the serial input signal at multiple phases. The multiple phases are generated from a reference clock that is not locked to the data rate of the serial input signal. A maximum of two phases are used at a time. The resulting CDR provides high performance while having low power consumption.

Abstract translation: 数据恢复电路（CDR）的时钟从串行输入信号中恢复数据。 CDR使用过采样在多个阶段对串行输入信号进行采样。 多个相位是从未锁定到串行输入信号的数据速率的参考时钟产生的。 一次最多使用两个相。 得到的CDR提供高性能同时具有低功耗。

公开(公告)号：US08804790B2

公开(公告)日：2014-08-12

申请号：US12430098

申请日：2009-04-26

Applicant: Ismail Lakkis

Inventor： Ismail Lakkis

IPC: H04B1/00

CPC classification number: H04B1/709 ,  H04B1/708 ,  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：US08761230B2

公开(公告)日：2014-06-24

申请号：US12480525

申请日：2009-06-08

Applicant: Ismail Lakkis

Inventor： Ismail Lakkis

IPC: H04B1/00

CPC classification number: H04J13/0014 ,  H04J13/0003

Abstract: A communication method comprises generating a Golay code having a zero-DC level when differentially encoded and continuously rotated. A preamble of a data stream is spread with the Golay code, and the data stream is modulated with continuous phase modulation (CPM), such as constant envelope 2-CPM, before being transmitted. A method for acquiring a received signal having a spread sync field modulated with 2-CPM comprises performing chip-level differential detection of the received signal, correlating the received signal with a Golay sequence; and accumulating the correlator outputs.

Abstract translation: 通信方法包括：当进行差分编码并连续旋转时产生具有零直流电平的波利码。 用Golay码扩展数据流的前同步码，并且在发送之前用连续相位调制（CPM）调制数据流，例如恒定包络2-CPM。 一种用于获取具有用2-CPM调制的扩展同步信号的接收信号的方法，包括执行接收信号的码片级差分检测，将接收信号与Golay序列进行相关; 并累加相关器输出。

公开(公告)号：US08681841B2

公开(公告)日：2014-03-25

申请号：US12911735

申请日：2010-10-26

Applicant: Ismail Lakkis

Inventor： Ismail Lakkis

IPC: H04B1/38 ,  H04K1/10 ,  H04J1/00

CPC classification number: H04L25/03159 ,  H04L25/0228 ,  H04L25/03292 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2626 ,  H04L27/2647 ,  H04L2025/03414

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：US20140016676A1

公开(公告)日：2014-01-16

申请号：US14029727

申请日：2013-09-17

Applicant: Ismail Lakkis

Inventor： Ismail Lakkis

IPC: H04B1/7093

CPC classification number: H04B1/7093 ,  H04B1/707 ,  H04J13/0014 ,  H04J13/0077 ,  H04J13/107

Abstract: Certain aspects of the present disclosure relate to a method for generating Golay codes and generalized Golay codes in a wireless communication system, and for efficient spreading at a transmitter and despreading at a receiver.

Abstract translation: 本公开的某些方面涉及用于在无线通信系统中生成戈莱码和广义格雷码的方法，并且用于在发射机处的高效扩展和在接收机处的解扩。

公开(公告)号：US08588284B2

公开(公告)日：2013-11-19

申请号：US13151248

申请日：2011-06-01

Applicant: Ismail Lakkis ,  Hock Law

Inventor： Ismail Lakkis ,  Hock Law

IPC: H04B1/38

CPC classification number: H04W56/0015 ,  A61B5/00 ,  A61B5/0002 ,  A61B5/002 ,  A61B5/0022 ,  A61B5/0024 ,  A61B5/0026 ,  A61B5/0028 ,  A61B5/0059 ,  A61B5/01 ,  A61B5/02028 ,  A61B5/0205 ,  A61B5/02055 ,  A61B5/021 ,  A61B5/02438 ,  A61B5/0507 ,  A61B5/0816 ,  A61B5/11 ,  A61B5/4362 ,  A61B5/6833

Abstract: A medical sensor system comprises a gateway comprising a wideband receiver and a narrow band transmitter, the each gateway configured to receive a wideband positioning frame using the wideband receiver from one or more wearable sensors and to transmit acknowledgement frames using the narrow band transmitter that include timing and control data for use by the sensors to establish timing for transmission of the positioning frame; and at least one wearable sensor comprising a wideband transmitter and a narrow band receiver, the sensor configured to transmit a sensor data frame to the gateway using the wideband transmitter and to receive an acknowledgement frame from the gateway using the narrow band receiver, extract timing and control information from the frame, and adjust the timing and synchronization of the wideband transmitter using the timing and control information.

Abstract translation: 医疗传感器系统包括包括宽带接收机和窄带发射机的网关，每个网关被配置为使用来自一个或多个可佩戴传感器的宽带接收机接收宽带定位帧，并且使用包括定时的窄带发射机发送确认帧 以及由传感器使用的控制数据，以建立定位框架的传输定时; 以及包括宽带发射机和窄带接收机的至少一个可佩戴传感器，所述传感器被配置为使用所述宽带发射机向所述网关发送传感器数据帧，并且使用所述窄带接收机从所述网关接收确认帧，提取定时和 控制来自帧的信息，并使用定时和控制信息来调整宽带发射机的定时和同步。

公开(公告)号：US20130266045A1

公开(公告)日：2013-10-10

申请号：US13442387

申请日：2012-04-09

Applicant: Ismail Lakkis

Inventor： Ismail Lakkis

IPC: H04B1/38

CPC classification number: H04B1/525 ,  H04B1/123 ,  H04B1/30

Abstract: Transceiver calibration is a critical issue for proper transceiver operation. The transceiver comprises at least one RF transmit chain and one RF receive chain. A closed loop path is formed from the digital block, the RF transmit chain, the substrate coupling, the RF receive chain back to the digital block and is used to estimate and calibrate the transceiver parameters over the operating range of frequencies. The substrate coupling eliminates the need for the additional circuitry saving area, power, and performance. In place of the additional circuitry, the digital block which performs baseband operations can be reconfigured into a software or/and hardware mode to calibrate the transceiver. The digital block comprises a processor and memory and is coupled to the front end of the RF transmit chain and the tail end of the RF receive chain.

Abstract translation: 收发器校准是正确的收发器操作的关键问题。 收发器包括至少一个RF发射链和一个RF接收链。 从数字模块，RF发射链，衬底耦合，RF接收链回到数字模块形成闭环路径，并用于在频率的工作范围内估计和校准收发器参数。 基板耦合消除了额外的电路节省面积，功率和性能的需要。 代替附加电路，执行基带操作的数字模块可以重新配置成软件或/和硬件模式，以校准收发器。 数字模块包括处理器和存储器，并且耦合到RF发射链的前端和RF接收链的尾端。

公开(公告)号：US08537878B2

公开(公告)日：2013-09-17

申请号：US12430099

申请日：2009-04-26

Applicant: Ismail Lakkis

Inventor： Ismail Lakkis

IPC: H04B1/00

CPC classification number: H04B1/7093 ,  H04B1/707 ,  H04J13/0014 ,  H04J13/0077 ,  H04J13/107

Abstract: A method for communicating comprises generating at least one spreading code from a preferred Golay generator and/or a preferred generalized Golay generator. The preferred generalized Golay generator may comprise a plurality of preferred Golay generators. The outputs of the preferred Golay generator are logic 0 and 1. Each stage of the preferred Golay generator may comprise a single basic storage unit, such as a Flip-Flop. 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: 用于通信的方法包括从优选的格雷发生器和/或优选的广义格雷发生器生成至少一个扩展码。 优选的广义Golay发生器可以包括多个优选的Golay发生器。 优选Golay发生器的输出是逻辑0和1.优选的Golay发生器的每个级可以包括单个基本存储单元，例如触发器。 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：US08429502B2

公开(公告)日：2013-04-23

申请号：US11716968

申请日：2007-03-12

Applicant: Ismail Lakkis

Inventor： Ismail Lakkis

IPC: H04L7/00 ,  H03M13/05

CPC classification number: H03M13/618 ,  H03M13/1505 ,  H03M13/611 ,  H04J13/0014 ,  H04J13/16 ,  H04L5/0007

Abstract: A single frame format is employed by a millimeter wave communication system for single-carrier and OFDM signaling. A Golay-coded sequence in the start frame delimiter (SFD) field identifies the data transmission as single carrier or OFDM. Complementary Golay codes are employed in a channel estimation field to allow a perfect estimate of the multipath channel to be made. Marker codes generated from Golay codes are inserted periodically between slots for tracking and/or for reacquiring timing, frequency, and multipath channel estimates. The length of the marker codes may be adapted relative to the multipath delay spread.

Abstract translation: 用于单载波和OFDM信令的毫米波通信系统采用单帧格式。 起始帧定界符（SFD）字段中的格雷编码序列将数据传输识别为单载波或OFDM。 在信道估计字段中采用互补格洛码，以允许进行多路径信道的完美估计。 从Golay码产生的标记代码周期性地插入用于跟踪和/或重新获取定时，频率和多径信道估计之间。 标记码的长度可以相对于多径延迟扩展来适应。

公开(公告)号：US08422468B2

公开(公告)日：2013-04-16

申请号：US12419198

申请日：2009-04-06

Applicant: Ismail Lakkis

Inventor： Ismail Lakkis

IPC: H04Q7/24 ,  H04L12/56

CPC classification number: H04W72/0406 ,  H04W16/14 ,  H04W84/18

Abstract: Certain aspects of the present disclosure relate to a method for allocating a plurality of logical channels within each wideband channel specified by the IEEE 802.15.3c standard. Each logical channel can utilize the same wideband channel, but the logical channel can also utilize a narrowband channel (i.e., a low data rate (LDR) channel) for control and signaling. The logical channel may function as a common mode channel for multi-mode operations. A piconet controller (PNC) within a piconet can utilize the LDR for beaconing, association, and for assigning Channel Time Allocations (CTAs). Inside a CTA period, multiple devices in the piconet can communicate using a single-carrier mode, an OFDM mode, or some other mode.

Abstract translation: 本公开的某些方面涉及用于在由IEEE 802.15.3c标准指定的每个宽带信道内分配多个逻辑信道的方法。 每个逻辑信道可以使用相同的宽带信道，但是逻辑信道也可以利用窄带信道（即，低数据速率（LDR）信道）来进行控制和信令。 逻辑信道可以用作多模式操作的共模信道。 微微网内的微微网控制器（PNC）可以利用LDR进行信标，关联和分配信道时间分配（CTA）。 在CTA周期内，微微网中的多个设备可以使用单载波模式，OFDM模式或某种其他模式进行通信。