公开(公告)号：US08937990B2

公开(公告)日：2015-01-20

申请号：US13601752

申请日：2012-08-31

申请人： Yasuo Hidaka

发明人： Yasuo Hidaka

IPC分类号： H03H7/40

CPC分类号： H04B3/143

摘要： A method of compensating for loss of a high-speed broadband signal may include receiving a high-speed broadband signal. The method may also include at least partially compensating for a low-frequency loss associated with a low-frequency component of the high-speed broadband signal. The compensation for the low-frequency loss may be based on a transfer function that may include a pole with a pole-frequency associated with the low-frequency component of the high-speed broadband signal.

摘要翻译： 补偿高速宽带信号丢失的方法可包括接收高速宽带信号。 该方法还可以包括至少部分地补偿与高速宽带信号的低频分量相关联的低频损耗。 低频损耗的补偿可以基于传输函数，其可以包括具有与高速宽带信号的低频分量相关联的极点频率的极点。

公开(公告)号：US08503519B2

公开(公告)日：2013-08-06

申请号：US12489339

申请日：2009-06-22

申请人： Yasuo Hidaka

发明人： Yasuo Hidaka

IPC分类号： H03H7/30

CPC分类号： H04L25/03057 ,  H04L7/0025 ,  H04L2025/0349 ,  H04L2025/03681 ,  H04L2025/03783

摘要： In one embodiment, a method includes accessing an input signal from a receiver that includes a series of bits and further comprising residual boundary intersymbol interference (ISI). The method includes identifying a first bit sequence in the input signal and identifying a second bit sequence in the input signal that differs from the first bit sequence with respect to one or more data values of one or more bits in the first and second bit sequences corresponding to particular residual boundary ISI for measurement. The method includes determining a difference between first boundary error in the first bit sequence and second boundary error in the second bit sequence and measuring the particular residual boundary ISI by the difference for use in adaptive equalizer control.

摘要翻译： 在一个实施例中，一种方法包括从包括一系列比特的接收机访问输入信号，并且还包括残余边界符号间干扰（ISI）。 该方法包括识别输入信号中的第一比特序列，并且相对于对应于第一和第二比特序列中的一个或多个比特的一个或多个比特的一个或多个数据值，识别与第一比特序列不同的输入信号中的第二比特序列 用于测量的特定剩余边界ISI。 该方法包括确定第一比特序列中的第一边界误差和第二比特序列中的第二边界误差之间的差异，并通过用于自适应均衡器控制的差异来测量特定残留边界ISI。

公开(公告)号：US07817757B2

公开(公告)日：2010-10-19

申请号：US11753116

申请日：2007-05-24

申请人： Yasuo Hidaka

发明人： Yasuo Hidaka

IPC分类号： H04B1/10

CPC分类号： H04L25/063 ,  H04L25/03885

摘要： In one embodiment of the present invention, a method for adjusting a signal includes receiving an input data signal and communicating a first portion of the input data signal on a first path and a second portion of the input data signal on a second path. The method also includes applying a first offset compensation to the first path and a second offset compensation to the second path. The method further includes combining at least the first path and the second path to generate an output signal. The method also includes, using a clock signal, sampling the output signal to generate a plurality of data values and boundary values, each value comprising either a high value or a low value based on the sampling of the output signal. The method further includes detecting a transition in value between two successive data values and determining a sampled boundary value between the two successive data values. The method also includes, based at least on the high or low value of the boundary value and on the high or low value of at least two data values arriving immediately before the boundary value, independently adjusting the first offset compensation applied to the first path and the second offset compensation applied to the second path.

摘要翻译： 在本发明的一个实施例中，一种用于调整信号的方法包括：接收输入数据信号，并在第二路径上的输入数据信号的第一路径和第二部分上传送输入数据信号的第一部分。 该方法还包括对第一路径应用第一偏移补偿和对第二路径施加第二偏移补偿。 该方法还包括至少组合第一路径和第二路径以产生输出信号。 该方法还包括使用时钟信号对输出信号进行采样以产生多个数据值和边界值，每个值基于输出信号的采样包括高值或低值。 该方法还包括检测两个连续数据值之间的值的转换并确定两个连续数据值之间的采样边界值。 该方法还包括至少基于边界值的高或低值以及紧接在边界值之前到达的至少两个数据值的高或低值，独立地调整施加到第一路径的第一偏移补偿，以及 施加到第二路径的第二偏移补偿。

公开(公告)号：US20090316771A1

公开(公告)日：2009-12-24

申请号：US12489356

申请日：2009-06-22

申请人： Yasuo Hidaka

发明人： Yasuo Hidaka

IPC分类号： H03H7/40

CPC分类号： H04L25/03057 ,  H04L7/0025 ,  H04L2025/0349 ,  H04L2025/03681 ,  H04L2025/03783

摘要： In one embodiment, a system includes one or more digital feedback equalizers (DFEs) that include one or more residual intersymbol interference (ISI) detectors, one or more column balancers, and one or more weight selectors. The residual ISI detectors produce a first output signal indicating whether the residual ISI of a received input signal has a positive sign or a negative sign. The column balancers select one of the first output signals to produce a second output signal. The weight selectors access one of the weight values. The weight value corresponds to the column balancer that produced the second output signal and the residual ISI detector that produced the first output signal, and has a magnitude that is substantially independent of the sign of the residual ISI. The weight selectors produce a third output signal based on the weight value and the sign of the residual ISI.

摘要翻译： 在一个实施例中，系统包括一个或多个数字反馈均衡器（DFE），其包括一个或多个残余符号间干扰（ISI）检测器，一个或多个列平衡器和一个或多个权重选择器。 剩余的ISI检测器产生指示接收的输入信号的剩余ISI是否具有正号或负号的第一输出信号。 列平衡器选择第一输出信号之一以产生第二输出信号。 重量选择器访问其中一个重量值。 重量值对应于产生第二输出信号的列平衡器和产生第一输出信号的残余ISI检测器，并且具有基本上与剩余ISI的符号无关的幅度。 重量选择器基于重量值和剩余ISI的符号产生第三输出信号。

公开(公告)号：US20090086810A1

公开(公告)日：2009-04-02

申请号：US11862838

申请日：2007-09-27

申请人： Yasuo Hidaka

发明人： Yasuo Hidaka

IPC分类号： H03K5/159

CPC分类号： H04L25/03057 ,  H04L2025/03624

摘要： In accordance with a particular embodiment of the present invention, a method is offered that includes characterizing a data correlation matrix for an idle pattern offline in a filter environment and, further, using a static adaptive control scheme with a static value of a data-pattern compensation matrix to achieve a compensated adaptive equalizer control. In more specific embodiments, the adaptive control scheme is used with a ZF adaptation scheme in conjunction with a constant adaptation matrix. In other embodiments, the adaptive control scheme is used with a fast steepest-descent method using a variable adaptation matrix. In still other embodiments, the adaptive control scheme is used with a constant adaptation matrix, whereby a value of is statically calculated. If the adaptive control scheme is used with a decoupling matrix, a value of is statically calculated. An inverter is used between the data correlation matrix and the data-pattern compensation matrix.

摘要翻译： 根据本发明的特定实施例，提供一种方法，其包括在过滤器环境中表征脱机的空闲模式的数据相关矩阵，并且还使用具有数据模式的静态值的静态自适应控制方案 补偿矩阵实现补偿自适应均衡器控制。 在更具体的实施例中，自适应控制方案与ZF适配方案结合常数适应矩阵一起使用。 在其他实施例中，自适应控制方案使用使用可变自适应矩阵的快速最下降方法。 在其他实施例中，自适应控制方案与恒定的适应矩阵一起使用，由此静态地计算一个值。 如果自适应控制方案与解耦矩阵一起使用，则静态计算一个值。 在数据相关矩阵和数据模式补偿矩阵之间使用逆变器。

公开(公告)号：US20090086809A1

公开(公告)日：2009-04-02

申请号：US11862823

申请日：2007-09-27

申请人： Yasuo Hidaka

发明人： Yasuo Hidaka

IPC分类号： H03K5/159

CPC分类号： H04L25/03057 ,  H04L2025/03624

摘要： In accordance with a particular embodiment of the present invention, a method is offered that includes providing a filter and an adaptive control element that is operable to communicate with the filter. The method also includes measuring, over a period, a data correlation matrix and an uncompensated error correlation vector using first and second low pass filters. In addition, the method includes implementing a data-pattern compensation matrix online, whereby the data-pattern compensation matrix is obtained online dynamically from the data correlation matrix.

摘要翻译： 根据本发明的特定实施例，提供了一种方法，其包括提供过滤器和可操作以与过滤器通信的自适应控制元件。 该方法还包括使用第一和第二低通滤波器在一段时间内测量数据相关矩阵和未补偿误差相关矢量。 此外，该方法包括在线实现数据模式补偿矩阵，由此从数据相关矩阵中动态获得数据模式补偿矩阵。

公开(公告)号：US07339990B2

公开(公告)日：2008-03-04

申请号：US10360103

申请日：2003-02-07

申请人： Yasuo Hidaka

发明人： Yasuo Hidaka

IPC分类号： H03H7/30

CPC分类号： H04L25/03057 ,  H04L2025/0349

摘要： Processing a received signal includes receiving a signal having an analog form. The signal is sampled to yield sampled signals having an analog form. The following are repeated for each sampled signal. A feedback signal is generated from the sampled signal, and is converted from a digital form to an analog form. Correlation associated with the sampled signal is determined according to feedback signals generated from the sampled signals. The sampled signal having the analog form is adjusted in accordance with the correlation associated with the sampled signal in order to process the received signal.

摘要翻译： 处理接收到的信号包括接收具有模拟形式的信号。 信号被采样以产生具有模拟形式的采样信号。 对于每个采样信号重复以下操作。 从采样信号产生反馈信号，并从数字形式转换为模拟形式。 与采样信号相关的相关性根据从采样信号产生的反馈信号来确定。 根据与采样信号相关的相关性来调整具有模拟形式的采样信号，以处理接收的信号。

公开(公告)号：US20070300119A1

公开(公告)日：2007-12-27

申请号：US11753087

申请日：2007-05-24

申请人： Yasuo Hidaka

发明人： Yasuo Hidaka

IPC分类号： G08C25/00 ,  H04L1/00 ,  H03M13/00 ,  G06F11/00 ,  G06F11/30

CPC分类号： H04L25/063 ,  H04L25/03885

摘要： In one embodiment of the present invention, a method for adjusting a signal includes applying at least one of a loss compensation for frequency-dependent distortion and an offset compensation for DC-offset distortion to a data signal before or after the distortion occurs to generate an output signal. The method also includes, using a clock signal, sampling the output signal to generate a plurality of data values and an error value, each data value comprising either a high value or a low value based on the sampling of the output signal, the error value indicating residue of the distortion based on the sampling of the output signal. The method further includes selecting one or more filter patterns from a set of a plurality of filter patterns, each filter pattern comprising a plurality of data values. The method also includes monitoring the output signal for one or more patterns of data values corresponding to the one or more selected filter patterns. The method further includes detecting a pattern of data values in the output signal corresponding to one of the one or more selected filter patterns. The method also includes adjusting the at least one of the loss compensation and the offset compensation applied to the data signal based on the error value.

摘要翻译： 在本发明的一个实施例中，一种用于调整信号的方法包括在失真发生之前或之后对数据信号施加用于频率相关失真的损耗补偿和DC偏移失真的偏移补偿中的至少一个，以产生 输出信号。 该方法还包括使用时钟信号对输出信号进行采样以产生多个数据值和误差值，每个数据值基于输出信号的采样，包括高值或低值，误差值 基于输出信号的采样指示失真的残留。 该方法还包括从多个滤波器模式的集合中选择一个或多个滤波器模式，每个滤波器模式包括多个数据值。 该方法还包括监测与一个或多个所选滤波器图案对应的一个或多个数据值模式的输出信号。 该方法还包括检测对应于一个或多个所选滤波器图案之一的输出信号中的数据值的模式。 该方法还包括基于误差值调整应用于数据信号的损耗补偿和偏移补偿中的至少一个。

公开(公告)号：US20070297209A1

公开(公告)日：2007-12-27

申请号：US11753093

申请日：2007-05-24

申请人： Yasuo Hidaka

发明人： Yasuo Hidaka

IPC分类号： G11C5/06

CPC分类号： G01D21/00 ,  H04L25/03343 ,  H04L25/03885 ,  H04L25/068

摘要： In one embodiment of the present invention, a method for adjusting a signal includes receiving an input data signal. The method also includes applying an offset compensation to the input data signal to generate an output signal. The method further includes, using a clock signal, sampling the output signal to generate a plurality of data values and boundary values, each value comprising either a high value or a low value based on the sampling of the output signal. The method also includes detecting a transition in value between two successive data values and determining a sampled boundary value between the two successive data values. The method further includes, based at least on the high or low value of the boundary value, adjusting the offset compensation applied to the input data signal.

摘要翻译： 在本发明的一个实施例中，一种用于调整信号的方法包括接收输入数据信号。 该方法还包括对输入数据信号应用偏移补偿以产生输出信号。 该方法还包括使用时钟信号对输出信号进行采样以产生多个数据值和边界值，每个值基于输出信号的采样包括高值或低值。 该方法还包括检测两个连续数据值之间的值的转换并确定两个连续数据值之间的采样边界值。 该方法还包括至少基于边界值的高或低值来调整施加到输入数据信号的偏移补偿。

公开(公告)号：US07295605B2

公开(公告)日：2007-11-13

申请号：US10783170

申请日：2004-02-20

申请人： Weixin Gai ,  Yasuo Hidaka

发明人： Weixin Gai ,  Yasuo Hidaka

IPC分类号： H03K5/159

CPC分类号： H04L25/03038 ,  H03F3/45183 ,  H03F3/45475 ,  H03F3/45748 ,  H03F3/45973 ,  H03F2203/45424 ,  H03F2203/45458 ,  H03F2203/45652 ,  H03F2203/45702 ,  H03G5/165 ,  H04L25/061 ,  H04L2025/03445 ,  H04L2025/03592

摘要： A method for compensating for attenuation in an input signal includes receiving an input signal, communicating a first portion of the input signal on a first path, communicating a second portion of the input signal on a second path, and communicating a third portion of the input signal on a third path. The method also includes applying a first gain to the first portion of the input signal, applying a first-order mathematical operation and a second gain to the second portion of the input signal, and applying a second-order mathematical operation and a third gain to the portion of the input signal. The method further includes recombining the first portion, the second portion, and the third portion into an output signal.

摘要翻译： 用于补偿输入信号中的衰减的方法包括接收输入信号，在第一路径上传送输入信号的第一部分，在第二路径上传送输入信号的第二部分，以及传送输入的第三部分 信号在第三条路径上。 该方法还包括对输入信号的第一部分施加第一增益，向输入信号的第二部分应用一阶数学运算和第二增益，以及将二阶数学运算和第三增益应用于 输入信号的一部分。 该方法还包括将第一部分，第二部分和第三部分重新组合成输出信号。