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公开(公告)号：US20140254043A1
公开(公告)日：2014-09-11
申请号：US13856210
申请日：2013-04-03
Applicant: LSI CORPORATION
Inventor： Yu Liao , Haotian Zhang , Haitao Xia
CPC classification number: H04L7/0331 , G11B20/10009 , G11B20/10037 , G11B20/10222 , H04L7/0062 , H04L7/04
Abstract: Embodiments of the invention can be manifested as methods for converting analog waveforms into digital sampled signals. In at least one such embodiment, the method includes (i) sampling, based on a sampling-clock signal, an analog waveform received from a transmission channel to generate a digital sampled signal, (ii) generating a digital target signal by applying a specified reference data pattern to a model of the transmission channel, and (iii) adjusting the sampling-clock signal by comparing the digital sampled signal to the digital target signal. Embodiments of the invention can also be manifested as apparatuses that convert analog waveforms into digital sampled signals.
Abstract translation: 本发明的实施例可以表现为将模拟波形转换为数字采样信号的方法。 在至少一个这样的实施例中，该方法包括（i）基于采样时钟信号对从传输信道接收的模拟波形进行采样以产生数字采样信号，（ii）通过应用指定的 参考数据模式到传输信道的模型，以及（iii）通过将数字采样信号与数字目标信号进行比较来调整采样时钟信号。 本发明的实施例也可以表现为将模拟波形转换为数字采样信号的装置。
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公开(公告)号：US09019641B2
公开(公告)日：2015-04-28
申请号：US13714233
申请日：2012-12-13
Applicant: LSI Corporation
Inventor： Haotian Zhang , Yu Liao , Haitao Xia
CPC classification number: G11B27/322 , G11B5/59616 , G11B20/10 , G11B27/3072 , G11B2220/2508 , H04B1/1027
Abstract: The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for detecting patterns in a data stream. In one case, a data processing system is disclosed that includes: a pattern detector circuit operable to generate a pattern value based upon a comparison of a defined pattern to a first portion of a received input; and a comparator circuit operable to compare the pattern value to an adapted threshold, and to selectively assert a pattern found signal based at least in part on the comparison of the pattern value and the adapted threshold, where the adapted threshold is adjusted based at least in part on a noise component of a second portion of the received input.
Abstract translation: 本发明涉及用于数据处理的系统和方法，更具体地涉及用于检测数据流中的模式的系统和方法。 在一种情况下，公开了一种数据处理系统，其包括：模式检测器电路，可操作以基于定义的模式与接收到的输入的第一部分的比较来生成模式值; 以及比较器电路，其可操作以将所述模式值与适应的阈值进行比较，并且至少部分地基于所述模式值与所述适应阈值的比较来选择性地断言模式发现信号，其中所述适应阈值至少基于 部分是接收输入的第二部分的噪声分量。
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3.发明授权公开(公告)号：US08873180B2
公开(公告)日：2014-10-28
申请号：US13856210
申请日：2013-04-03
Applicant: LSI Corporation
Inventor： Yu Liao , Haotian Zhang , Haitao Xia
CPC classification number: H04L7/0331 , G11B20/10009 , G11B20/10037 , G11B20/10222 , H04L7/0062 , H04L7/04
Abstract: Embodiments of the invention can be manifested as methods for converting analog waveforms into digital sampled signals. In at least one such embodiment, the method includes (i) sampling, based on a sampling-clock signal, an analog waveform received from a transmission channel to generate a digital sampled signal, (ii) generating a digital target signal by applying a specified reference data pattern to a model of the transmission channel, and (iii) adjusting the sampling-clock signal by comparing the digital sampled signal to the digital target signal. Embodiments of the invention can also be manifested as apparatuses that convert analog waveforms into digital sampled signals.
Abstract translation: 本发明的实施例可以表现为将模拟波形转换为数字采样信号的方法。 在至少一个这样的实施例中，该方法包括（i）基于采样时钟信号对从传输信道接收的模拟波形进行采样以产生数字采样信号，（ii）通过应用指定的 参考数据模式到传输信道的模型，以及（iii）通过将数字采样信号与数字目标信号进行比较来调整采样时钟信号。 本发明的实施例也可以表现为将模拟波形转换为数字采样信号的装置。
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4.发明授权公开(公告)号：US08854762B2
公开(公告)日：2014-10-07
申请号：US13710351
申请日：2012-12-10
Applicant: LSI Corporation
Inventor： Lu Lu , Haotian Zhang , Haitao Xia
CPC classification number: G11B20/10046
Abstract: Systems, methods, devices, circuits for data processing, and more particularly to data processing including operational marginalization capability.
Abstract translation: 用于数据处理的系统，方法，设备，电路，更具体地涉及包括操作边缘化能力的数据处理。
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5.发明申请ZERO GAIN START AND GAIN ACQUISITION BASED ON ADAPTIVE ANALOG-TO-DIGITAL CONVERTER TARGET 有权基于自适应模数转换器目标的零增益开始和增益收购公开(公告)号：US20140104717A1
公开(公告)日：2014-04-17
申请号：US13652706
申请日：2012-10-16
Applicant: LSI CORPORATION
Inventor： Haotian Zhang , Yu Liao , Haitao Xia
IPC: G11B5/09
CPC classification number: G11B20/10027
Abstract: Aspects of the disclosure pertain to a system and method for providing zero gain start (ZGS) and gain acquisition based on an adaptive analog-to-digital converter (ADC) target. The adaptive ADC target is used to collect channel characteristics and based on the adaptive ADC target, an adjusted 2T amplitude target value is generated.
Abstract translation: 本公开的方面涉及用于基于自适应模数转换器（ADC）目标提供零增益开始（ZGS）和增益采集的系统和方法。 自适应ADC目标用于收集信道特性，并基于自适应ADC目标，产生调整后的2T幅度目标值。
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Patent Agency Ranking
公开(公告)号：US09218845B2
公开(公告)日：2015-12-22
申请号：US14148306
申请日：2014-01-06
Applicant: LSI Corporation
Inventor： Lu Pan , Haitao Xia , Haotian Zhang , Rui Cao
CPC classification number: G11B20/10009 , G11B20/10046 , G11B20/10305 , G11B20/10361 , G11B20/10388 , G11B20/1217
Abstract: Systems and method relating generally to data processing, and more particularly to systems and methods for utilizing multiple data streams for data recovery from a storage device. As an example, a data processing system is discussed that includes a first read head and a second read head each operable to sense information on a storage medium. A synthesizer circuit is operable to determine a quality metric based upon a signal to noise ratio of a first preamble pattern compared with a signal to noise ratio of a second preamble pattern. A balancing circuit is operable to generate a composite output as a combination of a first data set derived from the first read head a second data set derived from the second read head based at least in part on the quality metric.
Abstract translation: 一般涉及数据处理的系统和方法，更具体地涉及用于利用多个数据流进行数据从存储设备的数据恢复的系统和方法。 作为示例，讨论了包括第一读取头和第二读取头的数据处理系统，每个读取头和第二读取头可操作以感测存储介质上的信息。 合成器电路可操作以基于与第二前导码模式的信噪比相比较的第一前导码模式的信噪比来确定质量度量。 平衡电路可操作以至少部分地基于质量度量来生成作为从第一读取头导出的从第二读取头导出的第二数据集的第一数据集合的组合的复合输出。
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公开(公告)号：US20140168810A1
公开(公告)日：2014-06-19
申请号：US13714233
申请日：2012-12-13
Applicant: LSI CORPORATION
Inventor： Haotian Zhang , Yu Liao , Haitao Xia
CPC classification number: G11B27/322 , G11B5/59616 , G11B20/10 , G11B27/3072 , G11B2220/2508 , H04B1/1027
Abstract: The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for detecting patterns in a data stream.
Abstract translation: 本发明涉及用于数据处理的系统和方法，更具体地涉及用于检测数据流中的模式的系统和方法。
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8.发明申请公开(公告)号：US20140160592A1
公开(公告)日：2014-06-12
申请号：US13710351
申请日：2012-12-10
Applicant: LSI CORPORATION
Inventor： Lu Lu , Haotian Zhang , Haitao Xia
IPC: G11B5/035
CPC classification number: G11B20/10046
Abstract: Systems, methods, devices, circuits for data processing, and more particularly to data processing including operational marginalization capability.
Abstract translation: 用于数据处理的系统，方法，设备，电路，更具体地涉及包括操作边缘化能力的数据处理。
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公开(公告)号：US09288084B1
公开(公告)日：2016-03-15
申请号：US14259338
申请日：2014-04-23
Applicant: LSI Corporation
Inventor： Lu Lu , Haitao Xia , Haotian Zhang , Jianzhong Huang
CPC classification number: H04L25/03006 , G11B20/10009 , G11B20/10046 , H04L25/03019 , H04L25/067 , H04L27/01 , H04L2025/03592
Abstract: A data processing system includes an equalizer circuit operable to equalize digital data according to tap coefficients to yield equalized data, a tap coefficient adaptation circuit operable to adapt the tap coefficients based at least in part on a scaled error signal, a data detector operable to apply a data detection algorithm to the digital data to generate hard decisions and soft decisions, an error calculation circuit operable to calculate an error signal based on the equalized data and on the hard decisions, and a scaling circuit operable to scale the error signal based on the soft decisions to yield the scaled error signal.
Abstract translation: 数据处理系统包括均衡器电路，其可操作以根据抽头系数对数字数据进行均衡以产生均衡的数据;抽头系数适配电路，用于至少部分地基于缩放的误差信号来调整抽头系数;数据检测器，可操作以应用 用于产生硬判决和软决策的数据检测算法，用于基于均衡数据和硬判决来计算误差信号的误差计算电路，以及可用于根据所述硬判决来缩放误差信号的缩放电路 产生缩放误差信号的软判决。
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公开(公告)号：US09196298B1
公开(公告)日：2015-11-24
申请号：US14320011
申请日：2014-06-30
Applicant: LSI Corporation
Inventor： Haotian Zhang , Lu Pan , Haitao Xia
CPC classification number: G11B20/1217 , G11B5/09 , G11B5/4813 , G11B20/10037 , G11B20/10222 , G11B20/10481 , G11B2020/1232
Abstract: An apparatus includes an array reader with multiple of read heads operable to read a preamble pattern from a magnetic storage medium. A number of analog to digital converters are operable to sample an output of each of the read heads to generate digital data streams for the preamble pattern. A zero phase start calculation circuit is operable to calculate a phase offset between the digital data streams and to generate an integer phase adjustment signal and a fractional phase adjustment signal.
Abstract translation: 一种装置包括具有多个读取头的阵列读取器，其可操作以从磁性存储介质读取前导码模式。 多个模数转换器可操作以对每个读取头的输出进行采样以产生用于前同步码模式的数字数据流。 零相位开始计算电路可用于计算数字数据流之间的相位偏移并产生整数相位调整信号和分数相位调整信号。
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