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51. 发明授权

US07545883B2 Diversity wireless systems 有权
标题翻译：多样化无线系统
公开(公告)号：US07545883B2
公开(公告)日：2009-06-09
申请号：US11872527
申请日：2007-10-15
申请人： Kamilo Feher
发明人： Kamilo Feher
IPC分类号： H04L27/00
CPC分类号： H04L7/0008 , H04B1/69 , H04B1/707 , H04B7/0871 , H04B2201/70703 , H04L1/0056 , H04L25/03019 , H04L25/03828 , H04L25/4902 , H04L27/00 , H04L27/0004 , H04L27/0008 , H04L27/18 , H04L27/2017 , H04L27/2053 , H04L27/2071 , H04L27/22 , H04L27/2626 , H04L27/2637 , H04L27/2647 , H04L27/34 , H04L27/3405 , H04L27/362 , H04L27/38 , H04L2025/03547 , H04L2025/03681 , H04L2027/0087 , Y02D70/122 , Y02D70/124 , Y02D70/40 , Y02D70/444
摘要： Diversity wireless system, processor, cross-correlator, transmit baseband filter and modulator for processing, cross-correlating, filtering, modulating and providing a first and a second bit rate signal to a transmission system for transmission of the processed, filtered, modulated signal. Transmission system having two transmitters for transmission of the modulated signal. Diversity receiver system with two receivers for receiving the transmitted modulated signal and for providing received signal to a demodulator. Demodulator, receive baseband filter and receive processor for demodulation, filtering and processing received signal. Receive baseband filter for filtering is mis-matched to the transmit baseband filter for filtering of the first bit rate signal and receive processor for processing first bit rate demodulated baseband filtered signal provides received baseband mis-match filtered cross-correlated in-phase and quadrature-phase signal. Processor and transmit baseband filter for processing and filtering a signal into a cross-correlated filtered and into a cross-correlated spread spectrum in-phase and quadrature-phase baseband signal. Processor, first and second modulator for processing and baseband filtering a signal into time division multiplexed (TDM) filtered signal and into Orthogonal Frequency Division Multiplexed (OFDM) signal and for providing processed TDM filtered and processed OFDM signal to two modulators for modulation, transmission and diversity reception.
摘要翻译：分集无线系统，处理器，互相关器，发射基带滤波器和调制器，用于处理，互相关，滤波，调制并向传输系统提供第一和第二比特率信号，以便传输经处理的，经滤波的调制信号。具有用于传输调制信号的两个发射机的传输系统。具有两个接收机的分集接收机系统，用于接收发送的调制信号并将其提供给解调器。解调器，接收基带滤波器和接收处理器进行解调，滤波和处理接收信号。用于滤波的接收基带滤波器与用于滤波第一比特率信号的发射基带滤波器不匹配，并且用于处理的接收处理器用于处理第一比特率解调的基带滤波信号，提供接收的基带误匹配滤波的交叉相位同相和正交滤波器，相位信号。处理器和发射基带滤波器，用于处理和滤波信号到互相关滤波和交叉相位扩频同相和正交相位基带信号。处理器，第一和第二调制器，用于处理和基带滤波信号到时分多路复用（TDM）滤波信号并且转换成正交频分复用（OFDM）信号，并且用于将经处理的TDM滤波和处理的OFDM信号提供给两个调制器用于调制，传输和多样化接收。

52. 发明授权

US07535956B2 Adaptive equalizer circuit 有权
标题翻译：自适应均衡器电路
公开(公告)号：US07535956B2
公开(公告)日：2009-05-19
申请号：US11187804
申请日：2005-07-25
申请人： Hisakatsu Yamaguchi
发明人： Hisakatsu Yamaguchi
IPC分类号： H03K5/159
CPC分类号： H04L25/03885 , H04L2025/03681 , H04L2025/03789
摘要： An adaptive equalizer circuit equipped by a control unit for controlling an equalizer circuit, comprising a detection unit for detecting an identity of a preset data pattern with a data pattern as a result of data judgment for an output of the equalizer circuit, a monitor unit for sequentially monitoring an input to a gain amplifier for each of a plurality of filters constituting the equalizer circuit and an output thereof every time the identity detection unit detects an identity, and a unit for making the control unit operate an adaptive equalization control by providing the control unit with the monitoring result, thereby making it possible to track a great change in a characteristic of transmission line without using a matrix responding to the characteristic of the transmission line or a convolution operation by using the matrix.
摘要翻译：一种由用于控制均衡器电路的控制单元配备的自适应均衡器电路，包括：检测单元，用于根据用于均衡器电路的输出的数据判断结果，利用数据模式来检测预设数据模式的标识;监视器单元，每当身份检测单元检测到身份时，依次监视构成均衡器电路的多个滤波器中的每一个的增益放大器的输入及其输出，以及用于使控制单元通过提供控制来进行自适应均衡控制的单元具有监视结果，从而使得可以在不使用响应于传输线的特性的矩阵或通过使用矩阵的卷积运算的情况下跟踪传输线的特性的巨大变化。

53. 发明授权

US07447262B2 Adaptive blind start-up receiver architecture with fractional baud rate sampling for full-duplex multi-level PAM systems 有权
$Adaptive blind start-up receiver architecture with fractional baud rate sampling for full-duplex multi-level PAM systems$
标题翻译：自适应盲启动接收机架构，具有全双工多级PAM系统的分数波特率采样
公开(公告)号：US07447262B2
公开(公告)日：2008-11-04
申请号：US11128938
申请日：2005-05-12
申请人： Ching-Yih Tseng , Ming-Chou Yen , Jui-Tai Ko , Kun-Ying Tsai
发明人： Ching-Yih Tseng , Ming-Chou Yen , Jui-Tai Ko , Kun-Ying Tsai
IPC分类号： H03K5/159
CPC分类号： H04L25/0307 , H04L25/03273 , H04L25/03292 , H04L2025/03388 , H04L2025/03681
摘要： This invention presents a novel receiver architecture for full-duplex multi-level PAM systems. The receiver employs an Analog-to-Digital Converter (ADC) that has a sample rate flexibly specified as (Ns+1)/Ns baud rate where Ns is an integer equal or greater than 1. A fractional-spaced echo canceller is used to cancel the echo at the ADC output. The use of a fractional sampling rate higher than the baud rate also enables the timing recovery function be implemented in the digital domain and hence eliminates the need of using the complex analog phase selection circuit. The receiver is also capable of fast, blind start-up by use of a decision feedback equalizer with unity main tap and a soft level slicer. The timing phase can be optimally located using a derivative channel estimator. Once the “eye-open” condition is achieved, the channel equalization is switched to the use of linear equalizer coupled with an error feedback equalizer to alleviate the error propagation problem associated with the decision feedback equalizer.
摘要翻译：本发明提出了一种用于全双工多级PAM系统的新型接收机架构。接收机采用模数转换器（ADC），其具有灵敏地指定为（N SUB s +1）/ N S / S波特率的采样率，其中N _{s 是等于或大于1的整数。使用分数间隔回波消除器来消除ADC输出端的回波。使用高于波特率的分数采样率也使得定时恢复功能能够在数字域中实现，因此不再需要使用复合模拟相位选择电路。接收机还能够通过使用具有统一主抽头和软电平限幅器的判定反馈均衡器来快速，盲启动。使用导数信道估计器可以最佳地定位时序相位。一旦实现了“开眼”状态，则将信道均衡切换到与误差反馈均衡器耦合的线性均衡器的使用，以减轻与判决反馈均衡器相关联的误差传播问题。}

54. 发明申请

US20070268984A1 Method and apparatus for determining one or more channel compensation parameters based on data eye monitoring 有权
标题翻译：用于基于数据眼睛监测来确定一个或多个信道补偿参数的方法和装置
公开(公告)号：US20070268984A1
公开(公告)日：2007-11-22
申请号：US11434687
申请日：2006-05-16
申请人： Christopher J. Abel , Mohammad S. Mobin , Gregory W. Sheets , Lane A. Smith
发明人： Christopher J. Abel , Mohammad S. Mobin , Gregory W. Sheets , Lane A. Smith
IPC分类号： H04B15/00
CPC分类号： H04L25/03343 , H04L1/205 , H04L2025/03681 , H04L2025/03802
摘要： Methods and apparatus are provided for determining one or more channel compensation parameters based on data eye monitoring. According to one aspect of the invention, a method is provided for evaluating the quality of a data eye associated with a signal. The received signal is sampled for a plurality of different phases, for example, using at least two latches, and the samples are evaluated to identify when the signal crosses a predefined amplitude value, such as a zero crossing. It is determined whether the points of predefined amplitude crossing satisfy one or more predefined criteria. One or more parameters of one or more channel compensation techniques can optionally be adjusted based on a result of the determining step. One or more parameters of an adjacent transmitter can also be adjusted to reduce near end cross talk based on a result of the determining step.
摘要翻译：提供了用于基于数据眼睛监测来确定一个或多个信道补偿参数的方法和装置。根据本发明的一个方面，提供了一种用于评估与信号相关联的数据眼的质量的方法。接收到的信号对于多个不同的相位进行采样，例如使用至少两个锁存器，并且评估样本以识别信号何时跨越预定义的幅度值，例如零交叉。确定预定义的幅度交叉点是否满足一个或多个预定标准。一个或多个信道补偿技术的一个或多个参数可以根据确定步骤的结果来任意地进行调整。也可以根据确定步骤的结果，调整相邻发射机的一个或多个参数以减少近端串扰。

55. 发明授权

US07269213B2 Waveform equalizer having a tap coefficient monitoring unit 失效
标题翻译：具有抽头系数监测单元的波形均衡器
公开(公告)号：US07269213B2
公开(公告)日：2007-09-11
申请号：US09730188
申请日：2000-12-05
申请人： Kazushi Takanashi , Takeshi Akiyama
发明人： Kazushi Takanashi , Takeshi Akiyama
IPC分类号： H03H7/30
CPC分类号： H04L25/0202 , H04L25/03057 , H04L2025/03375 , H04L2025/0349 , H04L2025/03681
摘要： A waveform equalizer having a delay element of a feed-forward filter into which a reception signal is inputted is connected via a tap arrangement control switch to a weighting device The output of the weight device is inputted into an adder. The output of the adder is entered into a discriminator to become an equalization output. The equalization output is entered into a delay element of a feed-back filter. The delay element is connected via the tap arrangement control switch to the weighting device. The tap arrangement control switch ON/OFF-controls the tap arrangement. The tap coefficient monitoring unit monitors the tap coefficients of the weighting device. When the equalization operation cannot be carried out, it is restarted from the beginning of the reception signal. An impulse response predictor predicts an impulse response of a transfer path based upon the reception signal and the equalization output.
摘要翻译：具有输入接收信号的前馈滤波器的延迟元件的波形均衡器经由抽头布置控制开关连接到加权装置。加权装置的输出被输入加法器。加法器的输出进入鉴别器，成为均衡输出。均衡输出进入反馈滤波器的延迟元件。延迟元件通过抽头布置控制开关连接到加权装置。龙头排列控制开关ON / OFF控制龙头装置。抽头系数监视单元监视加权装置的抽头系数。当不能执行均衡操作时，从接收信号的开始重新开始。脉冲响应预测器基于接收信号和均衡输出来预测传输路径的脉冲响应。

56. 发明申请

US20070098061A1 Apparatus, system, and method for adaptive asynchronous equalization using leakage 有权
标题翻译：使用泄漏进行自适应异步均衡的装置，系统和方法
公开(公告)号：US20070098061A1
公开(公告)日：2007-05-03
申请号：US11263189
申请日：2005-10-31
申请人： Evangelos Eleftheriou , Robert Hutchins , Jens Jelitto , Sedat Oelcer
发明人： Evangelos Eleftheriou , Robert Hutchins , Jens Jelitto , Sedat Oelcer
IPC分类号： H03H7/40 , G06F17/10
CPC分类号： G11B20/10009 , G11B20/10046 , G11B20/10175 , G11B20/10481 , H04L25/03019 , H04L2025/03484 , H04L2025/03681
摘要： An apparatus, system, and method are disclosed for adaptive asynchronous equalization using leakage. An equalizer sums products of a plurality of tap signals from a delay line sampling a read signal and a plurality of corresponding tap coefficients to form an equalized signal in an asynchronous time domain having a first sampling rate. A leaky function module calculates a leaky function for each tap coefficient in the asynchronous time domain. An adaptation module adapts each of the tap coefficients as the leaky function for each tap coefficient summed with a signal-dependent updating function for each tap coefficient.
摘要翻译：公开了一种使用泄漏进行自适应异步均衡的装置，系统和方法。均衡器对来自对读取信号进行采样的延迟线和多个对应抽头系数的多个抽头信号的乘积相加，以在具有第一采样率的异步时域中形成均衡信号。泄漏功能模块计算异步时域中每个抽头系数的泄漏函数。适配模块将每个抽头系数适配为每个抽头系数的泄漏函数，用于针对每个抽头系数的与信号相关的更新函数相加。

57. 发明申请

US20070035866A1 Decoder with energization control circuit 有权
标题翻译：带通电控制电路的解码器
公开(公告)号：US20070035866A1
公开(公告)日：2007-02-15
申请号：US11201991
申请日：2005-08-11
申请人： Det Wu , Edmun Seng , Lin Lim , UttHeng Kan
发明人： Det Wu , Edmun Seng , Lin Lim , UttHeng Kan
IPC分类号： G11B20/08 , G11B20/14
CPC分类号： G06F1/3268 , G06F1/3221 , H04L25/03019 , H04L2025/03656 , H04L2025/03681 , H04L2025/03745 , Y02D10/154
摘要： A multistage decoder circuit has an error reduction stage that includes an adaptation circuit. The adaptation circuit provides adaptable error reduction as a function of bit error rate. The multistage decoder circuit has an energization control circuit that couples to the adaptation circuit. The energization control circuit controls an energization of the adaptation circuit as a function of actual or expected channel quality.
摘要翻译：多级解码器电路具有包括适配电路的误差减小级。自适应电路作为误码率的函数提供适应性差的减少。多级解码器电路具有耦合到适配电路的通电控制电路。通电控制电路根据实际或期望的信道质量来控制适配电路的通电。

58. 发明申请

US20060274866A1 Apparatus for suppressing burst noise and method thereof 有权
标题翻译：用于抑制突发噪声的装置及其方法
公开(公告)号：US20060274866A1
公开(公告)日：2006-12-07
申请号：US11144689
申请日：2005-06-06
申请人： Chiao-Chih Chang
发明人： Chiao-Chih Chang
IPC分类号： H04B1/10 , H03H7/30
CPC分类号： H04L25/03019 , H04B15/00 , H04B2215/061 , H04L2025/03471 , H04L2025/03681
摘要： An apparatus performs burst noise detection and then reduce the interference of the burst noise by controlling an operation of an adaptive apparatus, such as an equalizer. It includes: an adaptive apparatus having multiple coefficients, processing incoming signals according to these coefficients, and employing an error estimator to update the coefficients; a burst noise detector used to detect a burst noise; and an ON/OFF switching unit used to stop the error estimator from updating the coefficients when the burst noise is detected.
摘要翻译：一种装置执行突发噪声检测，然后通过控制诸如均衡器的自适应装置的操作来减少突发噪声的干扰。它包括：具有多个系数的自适应装置，根据这些系数处理输入信号，并采用误差估计器来更新系数; 用于检测突发噪声的突发噪声检测器; 以及用于在检测到突发噪声时停止误差估计器更新系数的ON / OFF切换单元。

59. 发明申请

US20050243903A1 PHY control module for a multi-pair gigabit transceiver 有权
公开(公告)号：US20050243903A1
公开(公告)日：2005-11-03
申请号：US11175715
申请日：2005-07-06
申请人： Oscar Agazzi
发明人： Oscar Agazzi
IPC分类号： G01R31/30 , G01R31/317 , G01R31/3185 , H03H7/30 , H03H21/00 , H04B1/38 , H04B3/23 , H04B3/32 , H04B3/46 , H04L1/00 , H04L1/08 , H04L1/24 , H04L7/00 , H04L7/02 , H04L7/033 , H04L25/03 , H04L25/06 , H04L25/14 , H04L25/49 , H04L25/497 , H04L29/08
CPC分类号： H04L7/0062 , G01R31/3004 , G01R31/3008 , G01R31/3016 , G01R31/31715 , G01R31/318502 , G01R31/318552 , G01R31/318594 , H03H21/0067 , H03H2021/007 , H03H2021/0074 , H04B3/23 , H04B3/32 , H04B3/487 , H04L1/0009 , H04L1/0054 , H04L1/08 , H04L1/242 , H04L7/0334 , H04L25/03038 , H04L25/03057 , H04L25/03146 , H04L25/03267 , H04L25/067 , H04L25/14 , H04L25/4917 , H04L25/497 , H04L69/323 , H04L2025/03363 , H04L2025/03369 , H04L2025/03477 , H04L2025/0349 , H04L2025/03496 , H04L2025/03503 , H04L2025/03617 , H04L2025/03681 , H04L2025/03745
摘要： A method for controlling operation of a multi-pair gigabit transceiver. The multi-pair gigabit transceiver comprises a Physical Layer Control module (PHY Control), a Physical Coding Sublayer module (PCS) and a Digital Signal Processing module (DSP). The PHY Control receives user-defined inputs from the Serial Management module and status signals and diagnostics signals from the DSP and the PCS and generates control signals, responsive to the user-defined inputs, the status signals and diagnostics signals, to the DSP and the PCS.

60. 发明授权

US06947481B1 Code enhanced equalization based upon a reliability factor 有权
标题翻译：基于可靠性因素的代码增强均衡
公开(公告)号：US06947481B1
公开(公告)日：2005-09-20
申请号：US09572122
申请日：2000-05-17
申请人： Richard W. Citta , Peter Ho
发明人： Richard W. Citta , Peter Ho
IPC分类号： H04L25/03 , H03H7/30 , H03H7/40 , H03K5/159
CPC分类号： H04L25/03019 , H04L2025/03471 , H04L2025/03611 , H04L2025/03681
摘要： A receiver includes an equalizer and a decoder which decodes data from a signal. The signal is based upon an output of the equalizer. The receiver also includes an encoder, which re-encodes the decoded data, and an error generator, which generates an error vector based upon the signal and the encoded data and which weights the error vector according to a reliability that the decoder accurately decoded the data from the signal. A controller controls the equalizer in response to the weighted error vector.
摘要翻译：接收机包括均衡器和解码器，其解码来自信号的数据。该信号基于均衡器的输出。接收机还包括对解码数据进行重新编码的编码器和误差发生器，该误差发生器根据信号和编码数据产生误差向量，并根据解码器对数据进行精确解码的可靠性对误差向量进行加权从信号。控制器响应加权误差向量控制均衡器。

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