公开(公告)号：US07436858B2

公开(公告)日：2008-10-14

申请号：US10856788

申请日：2004-06-01

申请人： Motti Goren ,  Ron Cohen ,  Dov Wulich

发明人： Motti Goren ,  Ron Cohen ,  Dov Wulich

IPC分类号： H04L12/43

CPC分类号： H04J3/1611 ,  H04J3/0623 ,  H04J3/0632 ,  H04J3/073 ,  H04J3/1617 ,  H04L2012/5649 ,  H04L2012/5663 ,  H04L2012/5674

摘要： An adaptive rate management method and system for adapting a receiver rate to a transmission rate in a packet switch network comprises determining an error value at a sample rate, obtaining an updated accumulator value based on said error value Es at a decimated sample rate, and generating an appropriate rate command and changing said accumulator value at the decimated rate based on the updated accumulator value. The method may be adapted for either adapter point management or bit stuffing. When applied to adapter point management (APM), the method generates pointer adjustments for rate management. In a frequency locked APM preferred embodiment of the method and system, pointer adjustments in an interval are generated at a constant rate based on an average pointer adjustment value calculated in previous intervals.

摘要翻译： 一种用于使接收机速率适应分组交换网络中的传输速率的自适应速率管理方法和系统包括以采样速率确定误差值，基于所述误差值E < 以抽取采样率，并产生适当的速率命令，并且基于所更新的累加器值以所述抽取率改变所述累加器值。 该方法可适用于适配器点管理或位填充。 当应用于适配器点管理（APM）时，该方法生成用于速率管理的指针调整。 在方法和系统的频率锁定APM优选实施例中，基于在先前间隔中计算的平均指针调整值，以恒定速率生成间隔中的指针调整。

公开(公告)号：US08995295B2

公开(公告)日：2015-03-31

申请号：US13508369

申请日：2010-11-04

申请人： Dov Wulich ,  Gill Raphael Tsouri ,  Ron Dabora

发明人： Dov Wulich ,  Gill Raphael Tsouri ,  Ron Dabora

IPC分类号： H04L5/02 ,  H04L27/34 ,  H04W52/02 ,  H04W52/22 ,  H04W52/36

CPC分类号： H04L27/3461

摘要： A method and a system for calculating a JCMA constellation for use in a JCMA communication system where the method includes a step of using maximum sum-rate mutual information criterion to select an optimal JCMA constellation for the number of transmitters N, SNR and modulation schemes used by the transmitters.

摘要翻译： 一种用于计算在JCMA通信系统中使用的JCMA星座图的方法和系统，其中所述方法包括使用最大和速率互信息准则来选择用于发射机数量N，SNR和调制方案的最佳JCMA星座图 由发射机。

公开(公告)号：US08401102B2

公开(公告)日：2013-03-19

申请号：US13549731

申请日：2012-07-16

申请人： Gil Rafael Tsouri ,  Dov Wulich

发明人： Gil Rafael Tsouri ,  Dov Wulich

IPC分类号： H04L5/12 ,  H04L23/02

CPC分类号： H04L5/02 ,  H04L5/023 ,  H04L27/3405 ,  H04W52/0206 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/225 ,  H04W52/367 ,  Y02D70/142 ,  Y02D70/146

摘要： A method for communication includes defining N respective symbol constellations in a signal space for N transmitters (24), N(2, subject to a predetermined power constraint, so as to produce a joint constellation including superpositions of symbols selected from the N symbol constellations. Data is transferred from the N transmitters by simultaneously transmitting from M the N transmitters N respective symbols selected respectively from the N symbol constellations. A composite symbol including a superposition of the N transmitted symbols is received. The received composite symbol is demodulated using the joint constellation so as to reconstruct the data transferred from the N transmitters.

摘要翻译： 一种用于通信的方法包括在N个发射机（24），N（2）的信号空间中定义N个相应的符号星座，其受到预定的功率约束，从而产生包括从N个符号星座中选择的符号的叠加的联合星座。 通过从N个发射机N同时发送N个发射机的数据，分别从N个符号星座中选择出相应的符号，接收包括N个发射符号的叠加的复合符号，使用联合星座解调接收到的复合符号 以便重建从N个发射机传送的数据。

公开(公告)号：US20120236964A1

公开(公告)日：2012-09-20

申请号：US13512360

申请日：2010-11-30

申请人： Dov Wulich

发明人： Dov Wulich

IPC分类号： H04B15/00 ,  H04L27/28

CPC分类号： H04W52/346 ,  H04L5/0046 ,  H04W52/20

摘要： System and method for reducing BER in OFDM based communication system. A cost function relating the power partition coefficients and the average power emitted by the linear power amplifier at the transmitter during quasistatic periods of the channel may be minimized, solved or estimated, based on the received channel partial CSI, and on knowledge of the linear power amplifier gain and linear dynamic range, to get power partition coefficients. The total available power may be divided among the subcarriers according to the resultant power partition coefficients. Additionally, the OFDM signal may amplified by a variable gain calculated based on the resultant power partition coefficients.

摘要翻译： 基于OFDM的通信系统降低BER的系统和方法。 可以基于所接收的信道部分CSI以及关于线性功率的知识来最小化，解决或估计在功率分配系数和线性功率放大器在发射机处发射的平均功率在信道的准静态周期期间的成本函数 放大器增益和线性动态范围，得到功率分配系数。 可以根据所得到的功率分配系数在子载波之间划分总可用功率。 此外，OFDM信号可以通过基于所得到的功率分配系数计算的可变增益放大。

公开(公告)号：US6130859A

公开(公告)日：2000-10-10

申请号：US199832

申请日：1998-11-25

申请人： Menashe Sonnenschein ,  Dov Wulich ,  Elazar Sonnenschein

发明人： Menashe Sonnenschein ,  Dov Wulich ,  Elazar Sonnenschein

IPC分类号： H04B13/02 ,  H04B11/00

CPC分类号： H04B13/02 ,  Y10S367/904

摘要： An underwater apparatus for transmitting and receiving high rate data and voice communication including a transmitter, a receiver, and a Doppler frequency shift compensator. The transmitter includes a data source comprising digital data to be transmitted by the apparatus through the water, a serial-to-parallel data processor for splitting the serial digital data into n parallel data channels, a n-channel modulator for receiving the n parallel data channels and for modulating those channels with n pairs of ultrasonic carriers to produce a modulated signal. The transmitter also includes a hydrophone for receiving and transmitting the modulated signal. The receiver includes a hydrophone for receiving a modulated signal. The receiver also includes RF circuitry for amplifying and shaping the received modulated signal, a serial-to-parallel data processor for splitting the amplified and shaped data into n parallel channels, a n-channel demodulator for demodulating the shaped signal and for outputting n channels of digital data, and a parallel-to-serial data processor for receiving n parallel channels of data from the demodulator and for combining those channels into serial data. The Doppler compensator measures the frequency of at least one of two unmodulated signals transmitted as part of the modulated signal and compares the measured frequency with a predetermined frequency. Operation of the demodulator is adjusted to compensate for any deviation between the measured and predetermined frequency.

摘要翻译： 一种用于发送和接收包括发射机，接收机和多普勒频移补偿器的高速率数据和语音通信的水下装置。 该发射机包括数据源，该数据源包括将由该设备通过水传输的数字数据，一个用于将串行数字数据分解成n个并行数据信道的串行到并行数据处理器，用于接收n个并行数据的n信道调制器 通道和用n对超声波载波调制这些通道以产生调制信号。 发射机还包括用于接收和发送调制信号的水听器。 接收机包括用于接收调制信号的水听器。 接收机还包括用于放大和整形所接收的调制信号的RF电路，用于将放大和成形数据分成n个并行通道的串并行数据处理器，用于解调成形信号并输出​​n个通道的n沟道解调器 的数字数据，以及并行到串行数据处理器，用于从解调器接收数据的n个并行通道，并将这些通道组合成串行数据。 多普勒补偿器测量作为调制信号的一部分发送的两个未调制信号中的至少一个的频率，并将测量的频率与预定频率进行比较。 调整解调器的操作，以补偿测量和预定频率之间的任何偏差。

公开(公告)号：US20130010839A1

公开(公告)日：2013-01-10

申请号：US13549731

申请日：2012-07-16

申请人： Gil Rafael Tsouri ,  Dov Wulich

发明人： Gil Rafael Tsouri ,  Dov Wulich

IPC分类号： H04L27/00

CPC分类号： H04L5/02 ,  H04L5/023 ,  H04L27/3405 ,  H04W52/0206 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/225 ,  H04W52/367 ,  Y02D70/142 ,  Y02D70/146

摘要： A method for communication includes defining N respective symbol constellations in a signal space for N transmitters (24), N(2, subject to a predetermined power constraint, so as to produce a joint constellation including superpositions of symbols selected from the N symbol constellations. Data is transferred from the N transmitters by simultaneously transmitting from M the N transmitters N respective symbols selected respectively from the N symbol constellations. A composite symbol including a superposition of the N transmitted symbols is received. The received composite symbol is demodulated using the joint constellation so as to reconstruct the data transferred from the N transmitters.

摘要翻译： 一种用于通信的方法包括在N个发射机（24），N（2）的信号空间中定义N个相应的符号星座，其受到预定的功率约束，从而产生包括从N个符号星座中选择的符号的叠加的联合星座。 通过从N个发射机N同时发送N个发射机的数据，分别从N个符号星座中选择出相应的符号，接收包括N个发射符号的叠加的复合符号，使用联合星座解调接收到的复合符号 以便重建从N个发射机传送的数据。

公开(公告)号：US08223882B2

公开(公告)日：2012-07-17

申请号：US12089071

申请日：2006-10-05

申请人： Gil Rafael Tsouri ,  Dov Wulich

发明人： Gil Rafael Tsouri ,  Dov Wulich

IPC分类号： H04L27/00

CPC分类号： H04L5/02 ,  H04L5/023 ,  H04L27/3405 ,  H04W52/0206 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/225 ,  H04W52/367 ,  Y02D70/142 ,  Y02D70/146

摘要： A method for communication includes defining N respective symbol constellations in a signal space for N transmitters (24), N(2, subject to a predetermined power constraint, so as to produce a joint constellation including superpositions of symbols selected from the N symbol constellations. Data is transferred from the N transmitters by simultaneously transmitting from the N transmitters N respective symbols selected respectively from the N symbol constellations. A composite symbol including a superposition of the N transmitted symbols is received. The received composite symbol is demodulated using the joint constellation so as to reconstruct the data transferred from the N transmitters.

摘要翻译： 一种用于通信的方法包括在N个发射机（24），N（2）的信号空间中定义N个相应的符号星座，其受到预定的功率约束，从而产生包括从N个符号星座中选择的符号的叠加的联合星座。 通过从N个发送机N中分别从N个符号星座中分别选择的各符号同时从N个发射机传送数据，接收包含N个发送符号的叠加的复合符号，使用联合星座解调所接收的复合符号， 以重建从N个发射机传送的数据。

公开(公告)号：US20090135926A1

公开(公告)日：2009-05-28

申请号：US12089071

申请日：2006-10-05

申请人： Gil Rafael Tsouri ,  Dov Wulich

发明人： Gil Rafael Tsouri ,  Dov Wulich

IPC分类号： H04L27/00 ,  H04J1/00 ,  H04J3/00 ,  H04L27/28

CPC分类号： H04L5/02 ,  H04L5/023 ,  H04L27/3405 ,  H04W52/0206 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/225 ,  H04W52/367 ,  Y02D70/142 ,  Y02D70/146

摘要： A method for communication includes defining N respective symbol constellations in a signal space for N transmitters (24), N(2, subject to a predetermined power constraint, so as to produce a joint constellation including superpositions of symbols selected from the N symbol constellations. Data is transferred from the N transmitters by simultaneously transmitting from the N transmitters N respective symbols selected respectively from the N symbol constellations. A composite symbol including a superposition of the N transmitted symbols is received. The received composite symbol is demodulated using the joint constellation so as to reconstruct the data transferred from the N transmitters.

摘要翻译： 一种用于通信的方法包括在N个发射机（24），N（2）的信号空间中定义N个相应的符号星座，其受到预定的功率约束，从而产生包括从N个符号星座中选择的符号的叠加的联合星座。 通过从N个发送机N中分别从N个符号星座中分别选择的各符号同时从N个发射机传送数据，接收包含N个发送符号的叠加的复合符号，使用联合星座解调所接收的复合符号， 以重建从N个发射机传送的数据。

公开(公告)号：US20120287801A1

公开(公告)日：2012-11-15

申请号：US13508369

申请日：2010-11-04

申请人： Dov Wulich ,  Gill Raphael Tsouri ,  Ron Dabora

发明人： Dov Wulich ,  Gill Raphael Tsouri ,  Ron Dabora

IPC分类号： H04J1/00 ,  H04W24/00

CPC分类号： H04L27/3461

摘要： A method and a system for calculating a JCMA constellation for use in a JCMA communication system where the method includes a step of using maximum sum-rate mutual information criterion to select an optimal JCMA constellation for the number of transmitters N, SNR and modulation schemes used by the transmitters.

摘要翻译： 一种用于计算在JCMA通信系统中使用的JCMA星座图的方法和系统，其中所述方法包括使用最大和速率互信息准则来选择用于发射机数量N，SNR和调制方案的最佳JCMA星座图 由发射机。

公开(公告)号：US06608552B1

公开(公告)日：2003-08-19

申请号：US09856565

申请日：2001-05-23

申请人： Meir Fogel ,  Dov Raviv ,  Daniel Rubin ,  Dov Wulich

发明人： Meir Fogel ,  Dov Raviv ,  Daniel Rubin ,  Dov Wulich

IPC分类号： H04M1104

CPC分类号： H05B37/0263 ,  H04L27/30

摘要： A method of transmitting data over power lines, a decoder of the transmitted data, and a lighting control system that uses the method. The data are represented as symbols that are encoded in groups of successive bursts of alternating signals, with each burst assigned one of M frequencies. Upon reception, the groups are decoded by a decoder that converts the received bursts into a binary form which is correlated with M binary reference signals by XORing and counting the resulting pulses up or down. The correlation values are added separately for each possible symbol value, with the highest score indicating the decoded symbol.

摘要翻译： 通过电力线发送数据的方法，发送数据的解码器以及使用该方法的照明控制系统。 数据被表示为以交替信号的连续脉冲串组编码的符号，每个脉冲串分配M个频率中的一个。 在接收时，通过解码器对组进行解码，该解码器将所接收的脉冲串转换成与M个二进制参考信号相关的二进制形式，通过异或运算将所产生的脉冲向上或向下计数。 为每个可能的符号值分别添加相关值，最高分数表示解码符号。