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1. 发明专利

JP2012170079A System and method for adaptive phase equalization 有权
标题翻译：用于自适应相位均衡的系统和方法
公开(公告)号：JP2012170079A
公开(公告)日：2012-09-06
申请号：JP2012029789
申请日：2012-02-14
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HIDAKA YASUO
IPC分类号： H04B7/005 , H03G3/10 , H04B3/04
CPC分类号： H04L25/03343 , H04L25/03076
摘要： PROBLEM TO BE SOLVED: To provide a method and the like for adaptive phase equalization compensating signal distortion caused by ISI.SOLUTION: A method comprises the steps of: generating a recovery data signal from a phase equalization signal based on transmission data included in the phase equalization signal, by a data detection part; comparing the phase equalization signal and the recovery data signal mutually, by a phase distortion detection part; determining a phase distortion level based on the comparison, by the phase distortion detection part; generating a phase distortion level signal based on the phase distortion level by the phase distortion detection part; generating a phase equalization level signal based on the phase distortion level signal, by an integration part; and adjusting a transmission data signal including transmission data based on the phase equalization level signal, by a phase equalization part. By adjusting the transmission data signal, there is provided the phase equalization signal or a phase preliminary distortion signal configured so as to be distorted to the phase equalization signal by transmission over a communication channel.
摘要翻译：要解决的问题：提供由ISI引起的自适应相位均衡补偿信号失真的方法等。解决方案：一种方法包括以下步骤：通过数据检测部分，基于相位均衡信号中包括的传输数据，从相位均衡信号产生恢复数据信号; 通过相位失真检测部相互比较相位均衡信号和恢复数据信号; 通过相位失真检测部确定基于比较的相位失真电平; 基于相位失真检测部分的相位失真电平产生相位失真电平信号; 通过积分部生成基于相位失真电平信号的相位均衡电平信号; 以及通过相位均衡部分基于所述相位均衡电平信号来调整包括发送数据的发送数据信号。通过调整发送数据信号，提供相位均衡信号或相位预失真信号，通过通过通信信道进行发送而被配置成与相位均衡信号失真。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2008022537A Signal adjusting method and adaptive equalizer 有权
标题翻译：信号调整方法和自适应均衡器
公开(公告)号：JP2008022537A
公开(公告)日：2008-01-31
申请号：JP2007143825
申请日：2007-05-30
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HIDAKA YASUO
IPC分类号： H04B3/06 , H04B3/04 , H04B3/10 , H04L25/03
CPC分类号： H04L25/063 , H04L25/03885
摘要： PROBLEM TO BE SOLVED: To make an amount of compensation applied to an equalizer match the level of attenuation caused by its medium as closely as possible, and to keep output characteristics of a signal consistently independently of a specified path used for the communication of the signal. SOLUTION: At least one of loss compensation for frequency-dependent distortion and offset compensation for DC-offset distortion is applied to a data signal before or after the distortion occurs to generate an output signal. Each data value comprises either a high value or a low value based on the sampling of the output signal, and the error value indicates the residue of the distortion. The method includes a step for selecting one or more filter patterns from a set of a plurality of filter patterns, and 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 a step for 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 a step for adjusting the at least one of the loss compensation and the offset compensation applied to the data signal on the basis of the error value. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了使均衡器的补偿量尽可能接近由其介质引起的衰减水平，并且保持信号的输出特性一致地独立于用于通信的指定路径的信号。解决方案：在发生失真之前或之后，将数据信号应用于DC偏移失真的频率相关失真和偏移补偿的损耗补偿中的至少一个以产生输出信号。每个数据值基于输出信号的采样包括高值或低值，误差值表示失真的残差。该方法包括从多个滤波器图案的集合中选择一个或多个滤波器图案的步骤，以及监视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。该方法还包括一个步骤，用于检测对应于一个或多个所选滤波器模式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来调整施加到数据信号的损耗补偿和偏移补偿中的至少一个的步骤。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2004242310A Method and system for processing sample signal 有权
公开(公告)号：JP2004242310A
公开(公告)日：2004-08-26
申请号：JP2004027081
申请日：2004-02-03
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HIDAKA YASUO
IPC分类号： H04L27/01 , H04B3/06 , H04L25/03
CPC分类号： H04L25/03343 , H04L25/03038 , H04L2025/03802
摘要： PROBLEM TO BE SOLVED: To provide a method by which high speed data communication can efficiently be performed over a long distance. SOLUTION: The method for processing a sample signal includes receiving a signal from a channel at a channel speed and applying error adjustment to the signal. The method includes sampling the signal at a speed lower than the channel speed to yield a sampled signal and discriminating an error related to the signal. The method also includes determining compensation information for the error adjustment. The compensation information is based on the error, and the compensation information is determined at a compensation speed lower than the channel speed. COPYRIGHT: (C)2004,JPO&NCIPI

4. 发明专利

JP2007325267A Signal adjustment method and adaptive equalizer 有权
标题翻译：信号调整方法和自适应均衡器
公开(公告)号：JP2007325267A
公开(公告)日：2007-12-13
申请号：JP2007143826
申请日：2007-05-30
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HIDAKA YASUO
IPC分类号： H04B3/06 , H04B3/04
CPC分类号： H04L25/03885 , H04L25/063
摘要： PROBLEM TO BE SOLVED: To provide a signal receiver employing an equalizer to match an amount of compensation applied by the equalizer with a level of attenuation due to a media as closely as possible and to keep the output characteristics of a signal consistently independently of a particular communication path used to communicate the signal. SOLUTION: A method for adjusting a signal includes applying a plurality of compensation for distortion to a signal 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 also includes detecting a transition in value between two successive data values and judging a sampled boundary value between the two successive data values. The method further includes based at least on the high or low values of the boundary value and a plurality of data values before or after the boundary value, independently adjusting each compensation applied to the signal. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种采用均衡器的信号接收机，以将由均衡器施加的补偿量与由于介质尽可能接近的衰减水平匹配，并且保持信号的输出特性一致地独立地用于传送信号的特定通信路径。解决方案：一种用于调整信号的方法包括对信号应用多个失真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且判断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和边界值之前或之后的多个数据值，独立地调整施加到信号的每个补偿。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2007325265A Signal adjustment method, and receiver 有权
标题翻译：信号调整方法和接收器
公开(公告)号：JP2007325265A
公开(公告)日：2007-12-13
申请号：JP2007143823
申请日：2007-05-30
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HIDAKA YASUO
IPC分类号： H04B3/04 , H03G3/20 , H04L25/03
CPC分类号： G01D21/00 , H04L25/03057 , H04L25/061 , H04L25/068
摘要： PROBLEM TO BE SOLVED: To provide a signal receiver employing an equalizer to match an amount of compensation applied by the equalizer with a level of attenuation due to a media as closely as possible and to keep the output characteristics of a signal consistently independently of a particular communication path used to communicate the signal. SOLUTION: A method for adjusting a signal includes a step of receiving an input data signal, and a step of applying an offset compensation to the input data signal to generate an output signal. The method also includes a step of, using a clock signal, sampling the output signal to generate a plurality of 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 a step of, based at least on the high or low value of a boundary value, adjusting the offset compensation applied to the input data signal. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种采用均衡器的信号接收机，以将由均衡器施加的补偿量与由于介质尽可能接近的衰减水平匹配，并且保持信号的输出特性一致地独立地用于传送信号的特定通信路径。解决方案：一种用于调整信号的方法包括接收输入数据信号的步骤，以及向输入数据信号施加偏移补偿以产生输出信号的步骤。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边界值的步骤，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的步骤。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2004242328A Measurement of signal using programmable gain amplifier 有权
公开(公告)号：JP2004242328A
公开(公告)日：2004-08-26
申请号：JP2004029866
申请日：2004-02-05
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HIDAKA YASUO
IPC分类号： H03G3/02 , G01D3/032 , H03G3/30 , H04L27/00
CPC分类号： G01D3/032 , H03G3/3005
摘要： PROBLEM TO BE SOLVED: To provide a system adjustable to impart a more accurate measured value near a specific value and to impart a less accurate measured value near the other value when measuring a signal.
SOLUTION: The measurement of the signal includes setting a numerator of a gain relating to a gain value (112) and setting a denominator of the gain relating to the gain value (114). In such a case, the gain value is a ratio of the gain denominator to the gain numerator. An input signal is received (110) and adjusted according to the gain value, and an output signal is obtained (116). The input signal is determined by utilizing the output signal and the inverse of the gain value (132, 134). The inverse is a ratio of the gain numerator to the gain denominator.
COPYRIGHT: (C)2004,JPO&NCIPI

7. 发明专利

JP2004242311A Signal processing method and system using vector output from scalar data 有权
公开(公告)号：JP2004242311A
公开(公告)日：2004-08-26
申请号：JP2004027082
申请日：2004-02-03
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HIDAKA YASUO
IPC分类号： H03H21/00 , H04B3/06 , H04L25/03
CPC分类号： H04L25/03133 , H03H21/0012 , H04L2025/03617
摘要： PROBLEM TO BE SOLVED: To provide a method and a system for signal processing using vector output from scalar data, and improve a conventional signal processing method and system.
SOLUTION: The signal processing method receives a signal from a channel at a some channel speed, and includes performing error adjustment for the signal. The method performs sampling the signal at a lower speed than the channel speed in order to obtain sampled scalar data. The signal is sampled in a first phase. The method includes discriminating the scalar error to be sampled relating to the signal in a second phase. Difference between the first phase and the second phase forms delay. The method includes forming a cross-correlation vector from the scalar error sampled at a some vector speed, and the sampled scalar data. The vector speed is slower than the speed by which the signal is sampled. The method further includes discrimination of compensation information relating to the error adjustment. The compensation information is decided by the vector speed based on the cross-correlation vector.
COPYRIGHT: (C)2004,JPO&NCIPI

8. 发明专利

JP2009089386A Method, logic and system for static data-pattern compensated adaptive equalizer control 有权
标题翻译：方法，用于静态数据模式补偿自适应均衡器控制的逻辑和系统
公开(公告)号：JP2009089386A
公开(公告)日：2009-04-23
申请号：JP2008248647
申请日：2008-09-26
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HIDAKA YASUO
IPC分类号： H04B3/10 , H03H21/00
CPC分类号： H04L25/03057 , H04L2025/03624
摘要： PROBLEM TO BE SOLVED: To provide a method etc., for providing continuous adaptive control using static data pattern compensation.
SOLUTION: The method is provided 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, thereby a value of MΦ
-1 is statically calculated. If the adaptive control scheme is used with a decoupling matrix, a value of (MM
T )
-1 MΦ
-1 is statically calculated. An inverter is used between the data correlation matrix and the data-pattern compensation matrix.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于使用静态数据模式补偿来提供连续自适应控制的方法等。解决方案：提供了一种方法，其包括在滤波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补偿矩阵的静态值的静态自适应控制方案来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配矩阵一起使用，从而静态地计算MΦ -1 的值。如果自适应控制方案与解耦矩阵一起使用，则静态计算（MM T ） -1 MΦ -1 的值。在数据相关矩阵和数据模式补偿矩阵之间使用逆变器。版权所有（C）2009，JPO＆INPIT

9. 发明专利

JP2008035485A Signal adjusting method and adaptive equalizer 有权
标题翻译：信号调整方法和自适应均衡器
公开(公告)号：JP2008035485A
公开(公告)日：2008-02-14
申请号：JP2007143828
申请日：2007-05-30
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HIDAKA YASUO
IPC分类号： H04B3/04 , H04L27/01
CPC分类号： H04L25/03885 , H04L7/0087 , H04L25/063
摘要： PROBLEM TO BE SOLVED: To maintain output characteristics of a signal independently of a communication path by matching the amount of compensation to be applied to an equalizer with an attenuation level caused by a medium as much as possible. SOLUTION: The disclosed method 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 data signal comprising even data and odd data. The method also includes 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 monitoring the output signal for a pattern of data values corresponding to one or more filter patterns. The method also includes detecting a pattern of data values in the output signal matching one of the filter patterns. The method further includes adjusting at least one of the loss compensation and the offset compensation applied to the data signal based on the error value. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：通过将施加到均衡器的补偿量与由介质引起的衰减水平尽可能地进行匹配，来保持独立于通信路径的信号的输出特性。解决方案：所公开的方法包括在失真发生之前或之后对数据信号应用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，数据信号包括偶数数据和奇数数据。该方法还包括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，误差值表示基于失真的残差对输出信号进行采样。该方法还包括监视与一个或多个滤波器模式对应的数据值的模式的输出信号。该方法还包括检测匹配一个滤波器模式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。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2007325268A Signal adjustment method and adaptive equalizer 有权
标题翻译：信号调整方法和自适应均衡器
公开(公告)号：JP2007325268A
公开(公告)日：2007-12-13
申请号：JP2007143827
申请日：2007-05-30
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HIDAKA YASUO
IPC分类号： H04B3/04
CPC分类号： G01D21/00 , H04L25/03038 , H04L25/03114 , H04L25/03343 , H04L25/061 , H04L2025/03611 , H04L2025/03681
摘要： PROBLEM TO BE SOLVED: To provide a signal receiver employing an equalizer to match an amount of compensation applied by the equalizer with a level of attenuation due to a media as closely as possible and to keep the output characteristics of a signal consistently independently of a particular communication path used to communicate the signal. SOLUTION: A method for adjusting a signal includes a step of applying at least one of a loss compensation for frequency-dependent distortion and an offset compensation for DC-offset distortion to a signal before or after the distortion occurs to generate an output signal, a step of, 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, and a step of, based only on the high or low value of one or more of the data values and boundary values, and adjusting at least one of the loss compensation and the offset compensation applied to the signal on the basis of one or more of the sampled data values and the boundary values. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种采用均衡器的信号接收机，以将由均衡器施加的补偿量与由于介质尽可能接近的衰减水平匹配，并且保持信号的输出特性一致地独立地用于传送信号的特定通信路径。解决方案：一种用于调整信号的方法包括以下步骤中的至少一个：针对频率相关失真的损耗补偿和用于DC偏移失真的偏移补偿至失真发生之前或之后的信号以产生输出信号，使用时钟信号的步骤，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，以及步骤仅基于数据值和边界值中的一个或多个的高或低值，并且基于一个或多个采样数据值来调整施加到信号的损耗补偿和偏移补偿中的至少一个和边界值。版权所有（C）2008，JPO＆INPIT

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