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11.发明授权Adaptive calibration of noise predictive finite impulse response filter based on decoder convergence 有权基于解码器收敛的噪声预测有限脉冲响应滤波器的自适应校准公开(公告)号：US09202519B2
公开(公告)日：2015-12-01
申请号：US14251350
申请日：2014-04-11
Applicant: LSI Corporation
Inventor： Bruce A. Wilson , Haitao Xia , Seongwook Jeong , Weijun Tan
CPC classification number: G11B20/1833 , G11B20/10046 , G11B20/10509 , G11B2020/185 , G11B2020/1856 , G11B2020/1863 , H03M13/1142
Abstract: A communication system and a noise predictive calibration method are disclosed. The communication system includes a decoder configured to decode an input signal, wherein the decoder produces one of: a converged data output when the decoder decodes the input signal successfully, and a non-converged data output when the decoder decodes the input signal unsuccessfully. The communication system also includes a convergence monitor configured to determine a calibration procedure based on at least one of: a number of times where the decoder decodes successfully, and a number of times where the decoder decodes unsuccessfully. A noise predictive calibration circuit is configured to utilize output produced by the decoder without qualification when the convergence monitor indicates utilization of a first calibration procedure. The noise predictive calibration circuit is further configured to utilize only the converged data output produced by the decoder when the convergence monitor indicates utilization of a second calibration procedure.
Abstract translation: 公开了通信系统和噪声预测校准方法。 通信系统包括：解码器，被配置为对输入信号进行解码，其中解码器产生以下之一：当解码器成功地解码输入信号时的收敛数据输出;当解码器解码输入信号失败时，输出非收敛数据。 通信系统还包括汇聚监视器，其被配置为基于以下中的至少一个来确定校准过程：解码器成功解码解码的次数以及解码器不成功解码的次数。 当收敛监视器指示使用第一校准过程时，噪声预测校准电路被配置为利用解码器产生的输出而不限定。 噪声预测校准电路还被配置为当会聚监视器指示使用第二校准过程时仅利用由解码器产生的会聚数据输出。
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公开(公告)号：US20140362461A1
公开(公告)日：2014-12-11
申请号：US13945216
申请日：2013-07-18
Applicant: LSI Corporation
Inventor： Weijun Tan , Shaohua Yang , Xuebin Wu
CPC classification number: G11B20/10046 , G11B20/10268
Abstract: The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for data detection.
Abstract translation: 本发明涉及用于数据处理的系统和方法，更具体地涉及用于数据检测的系统和方法。
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13.发明授权Read channel sampling utilizing two quantization modules for increased sample bit width 有权使用两个量化模块读取通道采样以增加采样位宽度公开(公告)号：US09281007B2
公开(公告)日：2016-03-08
申请号：US14198008
申请日：2014-03-05
Applicant: LSI Corporation
Inventor： Xuebin Wu , Yang Han , Weijun Tan , Shaohua Yang
CPC classification number: G11B20/10046 , G10L19/0208 , G11B5/012 , G11B5/5526 , G11B5/553 , G11B20/10009 , G11B20/10268 , G11B20/1403
Abstract: A communication channel structure and a decoding method supported by such a communication channel structure are disclosed. Such a communication channel includes a digital filter configured for filtering an input signal and two quantizer configured for quantizing the filtered signal. A first quantizer is utilized to quantize the filtered signal to produce a first quantized sample having a first precision and a second quantizer is utilized to quantize the filtered signal to produce a second quantized sample having a second precision, wherein the second precision is different from the first precision. The communication channel also includes an iterative decoder configured for utilizing the first quantized sample for a first global iteration of a decoding process and utilizing the second quantized sample for at least one subsequent global iteration of the decoding process.
Abstract translation: 公开了一种由这种通信信道结构支持的通信信道结构和解码方法。 这样的通信信道包括被配置为对输入信号进行滤波的数字滤波器和被配置为量化滤波信号的两个量化器。 利用第一量化器来量化滤波后的信号以产生具有第一精度的第一量化样本，并且使用第二量化器量化滤波信号以产生具有第二精度的第二量化样本，其中第二精度不同于 第一精度。 通信信道还包括迭代解码器，其被配置为利用第一量化样本进行解码过程的第一全局迭代，并且利用第二量化样本进行解码过程的至少一个后续全局迭代。
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公开(公告)号：US09110821B2
公开(公告)日：2015-08-18
申请号：US14243107
申请日：2014-04-02
Applicant: LSI Corporation
Inventor： Weijun Tan , Fan Zhang , Shaohua Yang
CPC classification number: G06F11/10 , G11B20/10009 , G11B20/10287 , G11B20/10296 , G11B20/1816 , G11B20/1883
Abstract: Various embodiments of the present invention provide systems and methods for media defect detection. As an example, a method is discusses that includes: receiving a decoded output including a first multi-bit symbol; receiving a detected output including a second multi-bit bit symbol; calculating values based upon respective combinations of the first multi-bit symbol and the second multi-bit symbols; calculating a first product and the second product based upon some of the aforementioned values; and asserting a suspect symbol indicator indicating a probability that the symbol is incorrect when at least one of the first product and the second product is negative.
Abstract translation: 本发明的各种实施例提供了用于介质缺陷检测的系统和方法。 作为示例，讨论了一种方法，其包括：接收包括第一多位符号的解码输出; 接收包括第二多位位符号的检测输出; 基于第一多位符号和第二多位符号的相应组合计算值; 基于一些上述值计算第一产品和第二产品; 并且当第一产品和第二产品中的至少一个为负时，断定指示符号不正确的概率的可疑符号指示符。
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公开(公告)号：US20140181625A1
公开(公告)日：2014-06-26
申请号：US13721417
申请日：2012-12-20
Applicant: LSI CORPORATION
Inventor： Weijun Tan , Xuebin Wu , Shaohua Yang
IPC: H03M13/25
CPC classification number: H03M13/3746 , H03M13/1102 , H03M13/1515 , H03M13/29 , H03M13/6331
Abstract: An apparatus comprises read channel circuitry and signal processing circuitry associated with the read channel circuitry. The signal processing circuitry is configured to determine a first set of soft outputs, hard decisions and reliability indicators for a read channel data signal, to determine a second set of soft outputs, hard decisions and reliability indicators based at least in part on the first set of soft outputs, hard decisions and reliability indicators, and to perform an iterative decoding process to decode the read channel data signal based at least in part on the second set of soft outputs, hard decisions and reliability indicators. The first set of soft outputs, hard decisions and reliability indicators are used to determine a reduced-state trellis for determining the second set of soft outputs, hard decisions and reliability indicators.
Abstract translation: 一种装置包括读通道电路和与读通道电路相关联的信号处理电路。 信号处理电路被配置为确定用于读通道数据信号的第一组软输出，硬判决和可靠性指示符，以至少部分地基于第一组来确定第二组软输出，硬判决和可靠性指示符 软输出，硬判决和可靠性指示器，并且执行迭代解码处理，以至少部分地基于第二组软输出，硬判决和可靠性指示器来解码读通道数据信号。 第一组软输出，硬判决和可靠性指标用于确定用于确定第二组软输出，硬判决和可靠性指标的缩小状态网格。
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Patent Agency Ranking
公开(公告)号：US08730606B1
公开(公告)日：2014-05-20
申请号：US13681917
申请日：2012-11-20
Applicant: LSI Corporation
Inventor： Weijun Tan , Shaohua Yang
IPC: G11B5/09
CPC classification number: G11B20/18 , G11B20/10046 , G11B20/1816 , G11B20/1833 , G11B2020/185
Abstract: Read channel circuitry comprises a decoder and error correction circuitry. The error correction circuitry is configured to calibrate a first set of filters using a read channel data signal, to determine first hard decision information regarding the read channel data signal using the calibrated first set of filters, to determine an error corrected read channel data signal using the first hard decision information, to calibrate a second set of filters using the error corrected read channel data signal, to determine second hard decision information regarding the error corrected read channel data signal using the calibrated second set of filters, and to decode the second hard decision information. The first set of filters and the second set of filters are calibrated in respective first and second calibrators.
Abstract translation: 读通道电路包括解码器和纠错电路。 误差校正电路被配置为使用读取通道数据信号来校准第一组滤波器，以使用校准的第一组滤波器来确定关于读取的通道数据信号的第一硬判决信息，以使用以下方式确定纠错的读通道数据信号： 第一硬判决信息，使用纠错的读通道数据信号来校准第二组滤波器，以使用校准的第二组滤波器来确定关于纠错的读通道数据信号的第二硬判决信息，并且解码第二硬 决策信息。 第一组滤波器和第二组滤波器在相应的第一和第二校准器中校准。
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17.发明申请ADAPTIVE CALIBRATION OF NOISE PREDICTIVE FINITE IMPULSE RESPONSE FILTER BASED ON DECODER CONVERGENCE 有权基于解码器融合的噪声预测有限脉冲响应滤波器的自适应校准公开(公告)号：US20150279421A1
公开(公告)日：2015-10-01
申请号：US14251350
申请日：2014-04-11
Applicant: LSI Corporation
Inventor： Bruce A. Wilson , Haitao Xia , Seongwook Jeong , Weijun Tan
CPC classification number: G11B20/1833 , G11B20/10046 , G11B20/10509 , G11B2020/185 , G11B2020/1856 , G11B2020/1863 , H03M13/1142
Abstract: A communication system and a noise predictive calibration method are disclosed. The communication system includes a decoder configured to decode an input signal, wherein the decoder produces one of: a converged data output when the decoder decodes the input signal successfully, and a non-converged data output when the decoder decodes the input signal unsuccessfully. The communication system also includes a convergence monitor configured to determine a calibration procedure based on at least one of: a number of times where the decoder decodes successfully, and a number of times where the decoder decodes unsuccessfully. A noise predictive calibration circuit is configured to utilize output produced by the decoder without qualification when the convergence monitor indicates utilization of a first calibration procedure. The noise predictive calibration circuit is further configured to utilize only the converged data output produced by the decoder when the convergence monitor indicates utilization of a second calibration procedure.
Abstract translation: 公开了通信系统和噪声预测校准方法。 通信系统包括：解码器，被配置为对输入信号进行解码，其中解码器产生以下之一：当解码器成功地解码输入信号时的收敛数据输出;当解码器解码输入信号失败时，输出非收敛数据。 通信系统还包括汇聚监视器，其被配置为基于以下中的至少一个来确定校准过程：解码器成功解码解码的次数以及解码器不成功解码的次数。 当收敛监视器指示使用第一校准过程时，噪声预测校准电路被配置为利用解码器产生的输出而不限定。 噪声预测校准电路还被配置为当会聚监视器指示使用第二校准过程时仅利用由解码器产生的会聚数据输出。
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18.发明申请Read Channel Sampling Utilizing Two Quantization Modules for Increased Sample Bit Width 有权读取通道采样利用两个量化模块增加采样位宽度公开(公告)号：US20150228303A1
公开(公告)日：2015-08-13
申请号：US14198008
申请日：2014-03-05
Applicant: LSI Corporation
Inventor： Xuebin Wu , Yang Han , Weijun Tan , Shaohua Yang
IPC: G11B20/10
CPC classification number: G11B20/10046 , G10L19/0208 , G11B5/012 , G11B5/5526 , G11B5/553 , G11B20/10009 , G11B20/10268 , G11B20/1403
Abstract: A communication channel structure and a decoding method supported by such a communication channel structure are disclosed. Such a communication channel includes a digital filter configured for filtering an input signal and two quantizer configured for quantizing the filtered signal. A first quantizer is utilized to quantize the filtered signal to produce a first quantized sample having a first precision and a second quantizer is utilized to quantize the filtered signal to produce a second quantized sample having a second precision, wherein the second precision is different from the first precision. The communication channel also includes an iterative decoder configured for utilizing the first quantized sample for a first global iteration of a decoding process and utilizing the second quantized sample for at least one subsequent global iteration of the decoding process.
Abstract translation: 公开了一种由这种通信信道结构支持的通信信道结构和解码方法。 这样的通信信道包括被配置为对输入信号进行滤波的数字滤波器和被配置为量化滤波信号的两个量化器。 利用第一量化器来量化滤波后的信号以产生具有第一精度的第一量化样本，并且使用第二量化器量化滤波信号以产生具有第二精度的第二量化样本，其中第二精度不同于 第一精度。 通信信道还包括迭代解码器，其被配置为利用第一量化样本进行解码过程的第一全局迭代，并且利用第二量化样本进行解码过程的至少一个后续全局迭代。
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公开(公告)号：US08810948B2
公开(公告)日：2014-08-19
申请号：US13722296
申请日：2012-12-20
Applicant: LSI Corporation
Inventor： Shaohua Yang , Jin Lu , Weijun Tan
CPC classification number: G11B20/10 , G11B20/10046
Abstract: An apparatus comprises read channel circuitry and signal processing circuitry associated with the read channel circuitry. The signal processing circuitry is configured to: equalize an oversampled digital data signal to determine an equalized digital data signal, filter the equalized digital data signal, determine a hard decision and reliability of the filtered digital data signal, and decode the filtered digital data signal based at least in part on the hard decision and reliability. The oversampled digital data signal comprises a first set of sampled digital data and a corresponding second set of sampled digital data, each of the samples in the first set of sampled digital data being offset from a corresponding one of the sample in the second set of sampled digital data by a phase difference.
Abstract translation: 一种装置包括读通道电路和与读通道电路相关联的信号处理电路。 信号处理电路被配置为：对过采样的数字数据信号进行均衡以确定均衡的数字数据信号，滤除均衡的数字数据信号，确定滤波数字数据信号的硬判决和可靠性，以及基于滤波的数字数据信号进行解码 至少部分在于硬的决定和可靠性。 过采样的数字数据信号包括第一组采样数字数据和相应的第二组采样数字数据，第一组采样数字数据中的每个样本与第二组采样数据中的样本中相应的一个采样偏移 数字数据由相位差组成。
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公开(公告)号：US20140211337A1
公开(公告)日：2014-07-31
申请号：US14243107
申请日：2014-04-02
Applicant: LSI Corporation
Inventor： Weijun Tan , Fan Zhang , Shaohua Yang
CPC classification number: G06F11/10 , G11B20/10009 , G11B20/10287 , G11B20/10296 , G11B20/1816 , G11B20/1883
Abstract: Various embodiments of the present invention provide systems and methods for media defect detection.
Abstract translation: 本发明的各种实施例提供了用于介质缺陷检测的系统和方法。
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