公开(公告)号：US20080232453A1

公开(公告)日：2008-09-25

申请号：US11726780

申请日：2007-03-22

申请人： Yossef Cohen ,  Noam Galperin

发明人： Yossef Cohen ,  Noam Galperin

IPC分类号： H04B3/04

CPC分类号： H04L25/03057 ,  H04L2025/03579 ,  H04L2025/03726

摘要： A method of operating an equalizer includes combining a Least Mean Squares (LMS) algorithm and a Least Squares (LS) algorithm to determine a set of equalizer tap values to be used in processing a signal. A channel impulse response (CIR) is computed, and an equalizer taps interval is then determined based on the CIR. The LS algorithm is used to determine a set of equalizer major taps based on the interval, and the LMS algorithm is used to determine a set of equalizer minor taps based on the interval.

摘要翻译： 操作均衡器的方法包括组合最小均方（LMS）算法和最小二乘法（LS）算法，以确定要在处理信号中使用的一组均衡器抽头值。 计算信道脉冲响应（CIR），然后基于CIR确定均衡器抽头间隔。 LS算法用于基于间隔确定一组均衡器主要抽头，并且使用LMS算法基于间隔来确定一组均衡器次级抽头。

公开(公告)号：US20080008233A1

公开(公告)日：2008-01-10

申请号：US11428810

申请日：2006-07-05

申请人： Yossef Cohen

发明人： Yossef Cohen

IPC分类号： H03K5/159 ,  H03H7/30 ,  H04B1/10

CPC分类号： H04L25/03057 ,  H04L25/0212 ,  H04L25/03267 ,  H04L25/03292

摘要： An apparatus for improved reception of a signal is described. The apparatus includes an equalizer that has at least two cascaded maximum-likelihood detectors and an adjustable delay unit. The equalizer and the adjustable delay unit are configured for adaptation in accordance with one or more multi-path signals in a communication channel that conveys the signal.

摘要翻译： 描述了一种用于改善信号接收的装置。 该装置包括具有至少两个级联最大似然检测器和可调节延迟单元的均衡器。 均衡器和可调节延迟单元被配置为根据传达信号的通信信道中的一个或多个多路径信号进行自适应。

公开(公告)号：US08073046B2

公开(公告)日：2011-12-06

申请号：US11820006

申请日：2007-06-14

申请人： Yossef Cohen ,  Eshel Hason ,  Noam Galperin

发明人： Yossef Cohen ,  Eshel Hason ,  Noam Galperin

IPC分类号： H03H7/30 ,  H03H7/40 ,  H03K5/159

CPC分类号： H04L25/03114 ,  H04L25/03343

摘要： A signal receiver inputs a signal, computes a set of equalizer tap values during a signal acquisition phase by applying an algorithm iteratively to a given set of training data contained within the signal, and uses the set of equalizer tap values to perform signal equalization during the signal acquisition phase. The algorithm includes computing and applying phase correction to the pre-equalized signal at each adaptation step to correct for phase error related to the main path only, of the input signal.

摘要翻译： 信号接收机输入信号，在信号获取阶段通过迭代地对包含在信号中的给定的一组训练数据应用算法来计算一组均衡器抽头值，并且使用该组均衡器抽头值来执行信号均衡 信号采集阶段。 该算法包括在每个自适应步骤中对预均衡信号计算和应用相位校正，以校正与输入信号的仅主路径相关的相位误差。

公开(公告)号：US20090244399A1

公开(公告)日：2009-10-01

申请号：US12412262

申请日：2009-03-26

申请人： Yossef Cohen ,  Noam Galperin ,  Eshel Hason

发明人： Yossef Cohen ,  Noam Galperin ,  Eshel Hason

IPC分类号： H04N5/44

CPC分类号： H04N5/44 ,  H04N21/42607

摘要： A device and method for receiving and processing single carrier and multiple carrier signals through substantially common elements within a receiver that uses a radix 2 FFT on the signal, equalizes both types of signals in the frequency domain and then, for the multiple carrier signal performs a polynomial interpolation to bring the signal to symbol rate and for the single carrier signal performs an IFFT and samples the output to produce a signal at symbol rate.

摘要翻译： 一种用于通过在信号上使用基2 FFT的接收机中的基本上共同的元件来接收和处理单载波和多载波信号的装置和方法，对频域中的两种类型的信号进行均衡，然后对于多载波信号执行 使信号符号速率和单载波信号的多项式插值执行IFFT并对输出采样以产生符号速率的信号。

公开(公告)号：US08218092B1

公开(公告)日：2012-07-10

申请号：US12397025

申请日：2009-03-03

申请人： Yossef Cohen ,  Itamar Gold-Gavriely ,  Avraham Epstein

发明人： Yossef Cohen ,  Itamar Gold-Gavriely ,  Avraham Epstein

IPC分类号： H04N5/455 ,  H04N5/60

CPC分类号： H04N5/46 ,  H04N5/455 ,  H04N21/42638

摘要： A television receiver includes a tuner, a bandpass filter, an intermediate frequency amplifier and a demodulator. The tuner has an input to receive radio frequency signals and an output to provide modulated analog and digital television signals at an intermediate frequency. The bandpass filter and the intermediate frequency amplifier provide a singular signal path to filter and amplify both the modulated analog and digital television signals at the intermediate frequency. The demodulator has a singular input coupled to the output of the intermediate frequency amplifier and a plurality of outputs. The plurality of outputs includes a first output to provide demodulated analog television signals in response to the output of the tuner providing modulated analog television signals at the intermediate frequency and a second output to provide demodulated digital television signals in response to the output of the tuner providing modulated digital television signals at the intermediate frequency.

摘要翻译： 电视接收机包括调谐器，带通滤波器，中频放大器和解调器。 调谐器具有用于接收射频信号的输入和输出以在中频提供调制的模拟和数字电视信号。 带通滤波器和中频放大器提供了一个奇异的信号路径，以过滤和放大中频调制的模拟和数字电视信号。 解调器具有耦合到中频放大器的输出的奇异输入和多个输出。 所述多个输出包括第一输出，以响应于所述调谐器的输出提供解调的模拟电视信号，所述调谐器提供在所述中频处的调制的模拟电视信号，以及第二输出，以响应于所述调谐器的输出提供解调的数字电视信号， 在中频调制数字电视信号。

公开(公告)号：US07903750B2

公开(公告)日：2011-03-08

申请号：US11853457

申请日：2007-09-11

申请人： Noam Galperin ,  Dor Amos ,  Yossef Cohen ,  Itamar Feigenbaum

发明人： Noam Galperin ,  Dor Amos ,  Yossef Cohen ,  Itamar Feigenbaum

IPC分类号： H04K1/10

CPC分类号： H04L27/2666 ,  H04L27/0008 ,  H04L27/2605 ,  H04L27/2663 ,  H04L27/2678

摘要： A system for identifying transmission parameters of an OFDM signal transmitted according to a transmitter clock includes a first correlator to receive and correlate samples of the signal sampled according to a receiver clock and provide a first metric indicative of whether the signal has a first transmission mode, a plurality of additional correlators, operable in parallel with the first correlator, to receive and correlate the samples of the signal sampled according to the receiver clock and provide a plurality of additional metrics indicative of whether the signal has a second transmission mode and whether the receiver clock is aligned with or displaced by at least one sample over one OFDM symbol relative to the transmitter clock, and a processor. The processor receives the metrics, and determines whether the signal has the first or second transmission mode and whether the receiver clock is aligned or displaced by the at least one sample relative to the transmitter clock.

摘要翻译： 用于识别根据发射机时钟发射的OFDM信号的传输参数的系统包括：第一相关器，用于接收和关联根据接收机时钟采样的信号的样本，并提供指示信号是否具有第一传输模式的第一度量; 多个附加相关器，其可与第一相关器并行操作，以接收和关联根据接收器时钟采样的信号的样本，并提供指示信号是否具有第二传输模式的多个附加度量以及接收器 时钟与相对于发射机时钟的一个OFDM符号上的至少一个采样对准或移位，以及处理器。 处理器接收度量，并且确定信号是否具有第一或第二传输模式以及接收机时钟是否相对于发射机时钟被至少一个采样对准或位移。

公开(公告)号：US20080310493A1

公开(公告)日：2008-12-18

申请号：US11820006

申请日：2007-06-14

申请人： Yossef Cohen ,  Eshel Hason ,  Noam Galperin

发明人： Yossef Cohen ,  Eshel Hason ,  Noam Galperin

IPC分类号： H03H7/30

CPC分类号： H04L25/03114 ,  H04L25/03343

摘要： A signal receiver inputs a signal, computes a set of equalizer tap values during a signal acquisition phase by applying an algorithm iteratively to a given set of training data contained within the signal, and uses the set of equalizer tap values to perform signal equalization during the signal acquisition phase. The algorithm includes computing and applying phase correction to the pre-equalized signal at each adaptation step to correct for phase error related to the main path only, of the input signal.

摘要翻译： 信号接收机输入信号，在信号采集阶段通过迭代地对包含在信号中的给定的一组训练数据应用算法来计算一组均衡器抽头值，并且使用该组均衡器抽头值来执行信号均衡 信号采集阶段。 该算法包括在每个自适应步骤中对预均衡信号计算和应用相位校正，以校正与输入信号的仅主路径相关的相位误差。

公开(公告)号：US20080216359A1

公开(公告)日：2008-09-11

申请号：US11530910

申请日：2006-09-12

申请人： Yossef Cohen

发明人： Yossef Cohen

IPC分类号： A43B7/06 ,  A43B21/28 ,  A43B13/38 ,  A43B19/00

CPC分类号： A43B17/08

摘要： The practical new design of the present invention provides a type of breathable, ventilated one-piece shoe pad having a main body that includes many ventilation openings. On the bottom surface of the main body an air bag is attached. The surface of the interface at which the air bag attaches to the main body in configured with many ventilation openings that correspond to the openings at the main body. The structure of this practical new design is very simple, it is cost-efficient in manufacturing and the product itself is durable. When utilized inside the shoe, the air bag creates an air convection flow and exhausts the foul stale air out of the shoe during each step of the user. This helps to keep the foot dry.

摘要翻译： 本发明的实用新型设计提供了一种透气，通风的一体式鞋垫，其具有包括许多通风口的主体。 在主体的底面安装有安全气囊。 气囊附着在主体上的界面的表面，其构造有与主体上的开口相对应的多个通风口。 这种实用的新设计的结构非常简单，制造成本低，产品本身耐用。 当在鞋内部使用时，气囊产生空气对流，并且在使用者的每个步骤期间将不合格的空气排出鞋子。 这有助于保持脚干燥。

公开(公告)号：US6134518A

公开(公告)日：2000-10-17

申请号：US34931

申请日：1998-03-04

申请人： Gilad Cohen ,  Yossef Cohen ,  Doron Hoffman ,  Hagai Krupnik ,  Aharon Satt

发明人： Gilad Cohen ,  Yossef Cohen ,  Doron Hoffman ,  Hagai Krupnik ,  Aharon Satt

IPC分类号： G10L19/02 ,  G10L19/04 ,  G10L19/18 ,  G10L11/02

CPC分类号： G10L19/18 ,  G10L19/0212 ,  G10L19/04

摘要： Apparatus is described for digitally encoding an input audio signal for storage or transmission. A distinguishing parameter is measure from the input signal. It is determined from the measured distinguishing parameter whether the input signal contains an audio signal of a first type or a second type. First and second coders are provided for digitally encoding the input signal using first and second coding methods respectively and a switching arrangement directs, at any particular time, the generation of an output signal by encoding the input signal using either the first or second coders according to whether the input signal contains an audio signal of the first type or the second type at that time. A method for adaptively switching between transform audio coder and CELP coder, is presented. In a preferred embodiment, the method makes use of the superior performance of CELP coders for speech signal coding, while enjoying the benefits of transform coder for other audio signals. The combined coder is designed to handle both speech and music and achieve an improved quality.

摘要翻译： 描述了用于对用于存储或传输的输入音频信号进行数字编码的装置。 一个区别的参数是从输入信号测量。 根据测量的区分参数确定输入信号是否包含第一类型或第二类型的音频信号。 提供了第一和第二编码器，用于分别使用第一和第二编码方法对输入信号进行数字编码，并且切换装置在任何特定时间通过使用根据第一或第二编码器对输入信号进行编码来引导输出信号的产生 此时输入信号是否包含第一类型或第二类型的音频信号。 提出了一种在转换音频编码器和CELP编码器之间进行自适应切换的方法。 在优选实施例中，该方法利用CELP编码器用于语音信号编码的优越性能，同时享受用于其他音频信号的变换编码器的优点。 组合编码器旨在处理语音和音乐，并实现改进的质量。

公开(公告)号：US6064954A

公开(公告)日：2000-05-16

申请号：US34516

申请日：1998-03-04

申请人： Gilad Cohen ,  Yossef Cohen ,  Doron Hoffman ,  Hagai Krupnik ,  Aharon Satt

发明人： Gilad Cohen ,  Yossef Cohen ,  Doron Hoffman ,  Hagai Krupnik ,  Aharon Satt

IPC分类号： G10L19/02 ,  G10L19/12

CPC分类号： G10L19/0212

摘要： Apparatus is disclosed for digitally encoding an input audio signal, for storage or transmission, comprising: a pitch detector for determining at least a dominant time-domain periodicity in the input signal; a generator for generating a prediction signal based on the dominant time domain periodicity of the input signal; a first discrete frequency domain transform generator for generating a frequency domain representation of the input signal; a second discrete frequency domain transform generator for generating a frequency domain representation of the prediction signal; a subtractor to subtract at least a portion of the frequency domain representation of the prediction signal from the frequency domain representation of the input signal to generate an error signal; and a generator to generate an output signal from the error signal and parameters defining the prediction signal. A corresponding decoder is also described.

摘要翻译： 公开了用于对用于存储或传输的输入音频信号进行数字编码的装置，包括：用于确定输入信号中的至少主要时域周期性的音调检测器; 用于基于输入信号的主要时域周期来产生预测信号的发生器; 用于产生所述输入信号的频域表示的第一离散频域变换发生器; 第二离散频域变换发生器，用于产生所述预测信号的频域表示; 减法器，用于从输入信号的频域表示中减去预测信号的频域表示的至少一部分，以产生误差信号; 以及发生器，用于从所述误差信号和定义所述预测信号的参数产生输出信号。 还描述了相应的解码器。