公开(公告)号：US08285554B2

公开(公告)日：2012-10-09

申请号：US11829402

申请日：2007-07-27

申请人： Arie Gur ,  Israel Greiss

发明人： Arie Gur ,  Israel Greiss

IPC分类号： G10L19/00

CPC分类号： H04M9/082

摘要： A method of for aliasing suppression in a sub-band speaker-phone system, comprising receiving an analog audio signal from a near end analog audio input interface, converting said analog audio signal into a near end digital audio signal using an A2D; receiving N≧2 sub-bands decoded digital audio data from a far-end, merging said N≧2 sub-bands decoded digital audio data into a wideband (WB) decoded digital audio data to be converted by D2A unit and provided to analog audio output interface; splitting said near-end digital audio signal into N≧2 near-end sub-bands digital audio signals; subtracting a simulated digital signal from said sub-band digital audio signal, wherein said simulated digital signal is created by an echo cancelling unit; and applying dynamic anti aliasing suppression (DAAS) with varying aggressiveness on each of said N≧2 near-end sub-band digital audio signals.

摘要翻译： 一种用于子带扬声器电话系统中的混叠抑制的方法，包括从近端模拟音频输入接口接收模拟音频信号，使用A2D将所述模拟音频信号转换成近端数字音频信号; 从远端接收N≥2个子带解码的数字音频数据，将所述N≥2个子带解码的数字音频数据合并成宽带（WB）解码的数字音频数据，由D2A单元转换并提供给模拟音频 输出接口; 将所述近端数字音频信号分解为N≥2个近端子带数字音频信号; 从所述子带数字音频信号中减去模拟数字信号，其中所述仿真数字信号由回波消除单元产生; 以及对所述N≥2个近端子带数字音频信号中的每一个应用具有不同侵略性的动态抗混叠抑制（DAAS）。

公开(公告)号：US08229106B2

公开(公告)日：2012-07-24

申请号：US11655888

申请日：2007-01-22

申请人： Israel Greiss ,  Arie Gur

发明人： Israel Greiss ,  Arie Gur

IPC分类号： H04M1/00 ,  H04M9/00

CPC分类号： G10L21/038 ,  G10L21/0364

摘要： A method for improving the intelligibility of an incoming telephone signal, including boosting loudness of at least one band of poorly heard frequencies of the signal within at least one band of intensities of the signal, the band lying below a predetermined intensity level at which telephone standard conformance testing is performed, thereby to generate a differentially boosted telephone signal. Alternatively or in addition, intelligibility of sibilants in a narrow band telephone signal is enhanced, by doubling the sampling rate of the narrow band signal by interpolation, thereby to provide a narrow band interpolated signal, generating a harmonic extrapolation signal by harmonically extrapolating from the narrow band interpolated signal thereby to estimate the missing portions of the telephone signal, the harmonic extrapolation comprising a sequence of pulses located at peaks of the interpolated signal, generating a missing energy estimator measure estimating energy missing at high frequency bands of the telephone signal, continuously modulating the amplitude of the pulses in said sequence of pulses based on said missing energy estimator measure, thereby to generate a modulated signal, passing the modulated signal through a shaping filter thereby to obtain a shaped signal, and summing the shaped signal with the interpolated signal.

摘要翻译： 一种用于提高输入电话信号的可懂度的方法，包括在信号强度的至少一个频带范围内提高信号听觉频率差的至少一个频带的响度，该频带位于电话标准下的预定强度水平 执行一致性测试，从而产生差分升压的电话信号。 或者或另外，通过将窄带信号的采样率通过插值加倍来增强窄带电话信号中的信号的可懂度，从而提供窄带内插信号，通过从窄带信号中并行地外推产生谐波外插信号 频率内插信号，从而估计电话信号的丢失部分，谐波外推包括位于内插信号的峰值处的脉冲序列，产生估计电话信号高频带缺失的能量估计器测量值，连续调制 基于所述缺失能量估计器测量所述脉冲序列中的脉冲的幅度，从而产生调制信号，将调制信号通过整形滤波器，从而获得整形信号，并将成形信号与内插信号求和。

公开(公告)号：US06618436B2

公开(公告)日：2003-09-09

申请号：US09876840

申请日：2001-06-07

申请人： Israel Greiss ,  Eyran Lida

发明人： Israel Greiss ,  Eyran Lida

IPC分类号： H04L2506

CPC分类号： H04L25/063 ,  H04L25/03057 ,  H04L2025/03363 ,  H04L2025/0349

摘要： A receiver of baseband signals from a communications line characterized by baseline wander, including a pre-decoding section, which receives and samples the signals and subtracts each sample from a preceding sample so as to generate corrected data, and an equalization section, which receives the corrected data and generates equalized output data representative of data input to the line and generally free of the baseline wander. The receiver preferably includes an A/D converter, which digitizes the signals either before or after pre-decoding.

公开(公告)号：US5630153A

公开(公告)日：1997-05-13

申请号：US317783

申请日：1994-10-04

申请人： Amos Intrater ,  Moshe Doron ,  Gideon Intrater ,  Lev Epstein ,  Maurice Valentaten ,  Israel Greiss

发明人： Amos Intrater ,  Moshe Doron ,  Gideon Intrater ,  Lev Epstein ,  Maurice Valentaten ,  Israel Greiss

IPC分类号： G06J3/00 ,  G06F9/38 ,  G06F15/78 ,  H04L27/00 ,  H04M11/00 ,  H04N1/40 ,  G06F9/26 ,  G06F9/40 ,  G06F9/44 ,  G06F13/36

CPC分类号： H04L27/00 ,  G06F15/7842 ,  G06F9/3885

摘要： An integrated data processing platform for processing a digital signal that includes a general purpose processor and a digital signal processor (DSP) module. The DSP module recovers digital data from a digital signal utilizing a sequence of DSP operations selected by the general purpose processor. The general purpose processor processes the digital data recovered by the DSP module, but is also available to perform general purpose tasks. A shared internal memory array selectively provides information to the DSP module and to the general purpose processor. The information stored in the internal memory array includes operands utilized in the execution of the DSP algorithm and selected instructions and data utilized by the general purpose CPU either for controlling the execution of the DSP algorithm or for executing its own general purpose tasks. While in many applications the data processing system will include an analog front end that converts a modulated input signal received on an analog transmission channel to a corresponding digital signal for processing by the data processing system, the data processing system may also receive the digital signal directly from a digital source.

摘要翻译： 一种用于处理包括通用处理器和数字信号处理器（DSP）模块的数字信号的集成数据处理平台。 DSP模块利用通用处理器选择的一系列DSP操作，从数字信号中恢复数字数据。 通用处理器处理由DSP模块恢复的数字数据，但也可用于执行通用任务。 共享内部存储器阵列选择性地向DSP模块和通用处理器提供信息。 存储在内部存储器阵列中的信息包括在DSP算法的执行中使用的操作数和通用CPU所使用的选择的指令和数据，用于控制DSP算法的执行或用于执行其自己的通用任务。 在许多应用中，数据处理系统将包括模拟前端，将模拟传输通道上接收的调制输入信号转换为相应的数字信号，以供数据处理系统处理，数据处理系统也可以直接接收数字信号 从数字来源。

公开(公告)号：US20130058661A1

公开(公告)日：2013-03-07

申请号：US13510267

申请日：2010-11-16

申请人： Israel Greiss ,  Nir Yona ,  Gerardo Nahum ,  Omri Raisman

发明人： Israel Greiss ,  Nir Yona ,  Gerardo Nahum ,  Omri Raisman

IPC分类号： G02B6/26 ,  H04B10/12 ,  B29C65/82 ,  G02B6/036

CPC分类号： G02B6/4249 ,  G02B6/02042 ,  G02B6/06 ,  G02B6/3801 ,  Y10T29/49769 ,  Y10T29/4978

摘要： A multi-core plastic optical fiber is used for multi-channel communication purposes. An alignment tool comprising a light source, selective filter and a detachable alignment-tube having a guide notch is provided to map the individual cores of a multi-core plastic optical fiber and prepare the connection of optical transceivers to both exposed ends of a pre-cut length of fiber. The alignment method results in a pre-cut length of fiber having alignment-tubes with guide notches secured to both ends. Transceiver guide projections mate to the notches, creating a complete optical multi-path between the transceiver active elements through the fiber cores. An automatic method of assembling optical transmitters to a multi-core fiber and mating optical receivers uses no alignment tools and tubes. This method dictates a specific placement of the optical transmitters in relation to the cores and receivers, assigning each transmitter to a preferred receiver based on detected light signal criteria.

摘要翻译： 多芯塑料光纤用于多通道通信。 提供了包括光源，选择性滤光器和具有引导凹口的可拆卸对准管的对准工具以映射多芯塑料光纤的各个芯，并准备光收发器与预收发器的两个暴露端的连接， 切割纤维长度。 对准方法导致具有对准管的纤维的预切割长度，其具有固定到两端的导向槽。 收发器引导突起与凹口配合，通过光纤芯在收发器有源元件之间创建完整的光学多路径。 将光发射器组装到多芯光纤和配合光接收机的自动方法不使用对准工具和管。 该方法规定光发射机相对于核心和接收机的具体放置，基于检测到的光信号标准将每个发射机分配给优选的接收机。

公开(公告)号：US20090030536A1

公开(公告)日：2009-01-29

申请号：US11829402

申请日：2007-07-27

申请人： Arie GUR ,  Israel Greiss

发明人： Arie GUR ,  Israel Greiss

IPC分类号： G06F17/00

CPC分类号： H04M9/082

摘要： A method of for aliasing suppression in a sub-band speaker-phone system, comprising receiving an analog audio signal from a near end analog audio input interface, converting said analog audio signal into a near end digital audio signal using an A2D; receiving N≧2 sub-bands decoded digital audio data from a far-end, merging said N≧2 sub-bands decoded digital audio data into a wideband (WB) decoded digital audio data to be converted by D2A unit and provided to analog audio output interface; splitting said near-end digital audio signal into N≧2 near-end sub-bands digital audio signals; subtracting a simulated digital signal from said sub-band digital audio signal, wherein said simulated digital signal is created by an echo cancelling unit; and applying dynamic anti aliasing suppression (DAAS) with varying aggressiveness on each of said N≧2 near-end sub-band digital audio signals.

摘要翻译： 一种用于子带扬声器电话系统中的混叠抑制的方法，包括从近端模拟音频输入接口接收模拟音频信号，使用A2D将所述模拟音频信号转换成近端数字音频信号; 从远端接收N≥2个子带解码的数字音频数据，将所述N≥2个子带解码的数字音频数据合并成由D2A单元转换的宽带（WB）解码数字音频数据，并提供给 模拟音频输出接口; 将所述近端数字音频信号分解为N> = 2个近端子带数字音频信号; 从所述子带数字音频信号中减去模拟数字信号，其中所述仿真数字信号由回波消除单元产生; 以及对所述N> = 2个近端子带数字音频信号中的每一个应用具有不同侵略性的动态抗混叠抑制（DAAS）。

公开(公告)号：US5963604A

公开(公告)日：1999-10-05

申请号：US975406

申请日：1997-11-20

申请人： Israel Greiss

发明人： Israel Greiss

IPC分类号： H03M1/12 ,  H04B15/04 ,  H04J3/04 ,  H04L7/00 ,  H04L7/033 ,  H04L25/40 ,  H04L27/00

CPC分类号： H04J3/047 ,  H04B15/04 ,  H04L7/0334 ,  H04B2215/064 ,  H04L7/0083 ,  H04L7/0331

摘要： A communication signal receiver performs a timing adjustment function of sampling with a circuit that also reduces the amount of electromagnetic interference (EMI) emitted from the receiver. The receiver includes an analog front end circuit that samples an input modulated carrier waveform responsive to a sampling clock signal to generate a digitized replica. The timing of the sampling is responsive to a timing signal. The digitized replica is analyzed to determine an appropriate adjustment to the sampling and, thus, to the timing signal. The frequency of the sampling is changed in accordance with the timing signal as adjusted, without adjusting the phase of the sampling. In particular, the frequency of the sampling is changed by removing transitions from an input clock signal to generate the sampling clock signal.

摘要翻译： 通信信号接收机利用也降低从接收机发射的电磁干扰（EMI）量的电路来执行采样的定时调整功能。 接收机包括模拟前端电路，其响应于采样时钟信号对输入的调制载波进行采样，以产生数字化的副本。 采样的定时响应于定时信号。 分析数字化副本以确定对采样的适当调整，从而确定对定时信号的适当调整。 采样的频率根据调整的定时信号而改变，而不调整采样的相位。 特别地，通过从输入时钟信号去除转换来产生采样时钟信号来改变采样的频率。

公开(公告)号：US07167883B2

公开(公告)日：2007-01-23

申请号：US10320767

申请日：2002-12-16

申请人： Israel Greiss ,  Baruch Bublil ,  Jeffrey Jacob ,  Dimitry Taich

发明人： Israel Greiss ,  Baruch Bublil ,  Jeffrey Jacob ,  Dimitry Taich

IPC分类号： G06F17/10 ,  H03H7/03

CPC分类号： H04B1/0003 ,  H04L1/0054 ,  H04L5/16 ,  H04L7/0004 ,  H04L7/0029 ,  H04L7/0058 ,  H04L7/007 ,  H04L25/03057 ,  H04L25/0307 ,  H04L25/14 ,  H04L2025/0349 ,  H04L2025/03617

摘要： A finite impulse response filter, including a plurality of taps arranged to receive and process a sequence of input data samples so as to generate a filter output. Each tap consists of a multiplier operating in one's complement arithmetic, the multiplier being coupled to multiply a respective input sample from the sequence by a respective equalization coefficient, and an adder, which sums an output from the multiplier. The taps are arranged in sequence so that the input sample to each of the taps, except to a first tap in the sequence, is delayed relative to a preceding tap in the sequence. The filter also includes an adjustment-accumulator coupled to receive the filter output and responsive thereto to generate an adjustment that is adapted to correct the filter output to a twos complement result, and an adjustment-adder which sums the adjustment and the filter output to generate a final output.

摘要翻译： 一种有限脉冲响应滤波器，包括多个抽头，其布置成接收和处理一系列输入数据样本以产生滤波器输出。 每个抽头包括以补码运算运算的乘法器，该乘法器被耦合以将来自该序列的相应输入采样乘以相应的均衡系数，以及将来自乘法器的输出相加的加法器。 抽头按顺序排列，使得除序列中的第一次抽头之外的每个抽头的输入样本相对于序列中的先前抽头而被延迟。 滤波器还包括耦合以接收滤波器输出并对其进行响应的调整 - 累加器，以产生适于将滤波器输出校正为二进制补码结果的调整，以及调整加法器，其将调整和滤波器输出相加以产生 最终输出。

公开(公告)号：US06590930B1

公开(公告)日：2003-07-08

申请号：US09359254

申请日：1999-07-22

申请人： Israel Greiss

发明人： Israel Greiss

IPC分类号： H04B1700

CPC分类号： H04L43/50

摘要： A method for determining a measure of the length of a link between a transmitter and a receiver within a communication network, including: conveying signals from the transmitter to the receiver in accordance with normal network operation, and then processing the received signals to determine the measure of the length, responsive to a length-dependent effect of the link on the signals. The method may be performed without removing the link from the network.

摘要翻译： 一种用于确定通信网络内的发射机和接收机之间的链路的长度的度量的方法，包括：根据正常网络操作将信号从发射机传送到接收机，然后处理接收的信号以确定测量 响应于链路对信号的长度依赖性影响。 可以在不从网络移除链路的情况下执行该方法。

公开(公告)号：US5731728A

公开(公告)日：1998-03-24

申请号：US556532

申请日：1995-11-13

申请人： Israel Greiss

发明人： Israel Greiss

IPC分类号： H04B15/04 ,  H04J3/04 ,  H04L7/00 ,  H04L7/033

CPC分类号： H04L7/0334 ,  H04B15/04 ,  H04J3/047 ,  H04B2215/064 ,  H04L7/0083 ,  H04L7/0331

摘要： A method and circuit spreads the narrow band emitted EMI of a clock signal. A first, high frequency, clock signal is received, for example, from an oscillator. The first clock signal is modulated, to produce a second clock signal, by inverting the first clock signal x times per L transitions of the first clock signal, where x and L are integers and x

摘要翻译： 一种方法和电路扩展了时钟信号的窄带发射EMI。 例如，从振荡器接收第一高频时钟信号。 第一时钟信号被调制以产生第二时钟信号，通过将第一时钟信号的第一时钟信号x乘以每次L个第一时钟信号的转换，其中x和L是整数，x