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51. 发明授权

US07948703B1 Adaptive target optimization methods and systems for noise whitening based viterbi detectors 有权
标题翻译：基于噪声漂白的维特比检测器的自适应目标优化方法和系统
公开(公告)号：US07948703B1
公开(公告)日：2011-05-24
申请号：US12356391
申请日：2009-01-20
申请人： Xueshi Yang
发明人： Xueshi Yang
IPC分类号： G11B5/02
CPC分类号： G11B20/10009 , G11B20/10037 , G11B20/10046 , G11B20/10296 , G11B20/10379 , G11B20/10398 , G11B20/24 , G11B2220/2516
摘要： Apparatuses and methods are provided for adaptively updating a target for a recording channel, such as a magnetic recording channel. In some embodiments, a read channel apparatus is provided which includes data path modules and adaptive path modules. The data path modules estimate user information from a recording channel, and the adaptive path modules adaptively update the target taps of the recording channel. The adaptive path modules may use a linearly constrained least-mean square (LC-LMS) algorithm to determine the amount and direction of each tap update, where the linear constraint may be a maximum phase or a mixed phase constraint. The adaptive path modules may operate independently of and be decoupled from the data path modules.
摘要翻译：提供了用于自适应地更新诸如磁记录通道的记录通道的目标的装置和方法。在一些实施例中，提供了包括数据路径模块和自适应路径模块的读通道装置。数据路径模块从记录通道估计用户信息，并且自适应路径模块自适应地更新记录通道的目标抽头。自适应路径模块可以使用线性约束最小均方（LC-LMS）算法来确定每个抽头更新的量和方向，其中线性约束可以是最大相位或混合阶段约束。自适应路径模块可以独立于数据路径模块并与数据路径模块解耦。

52. 发明授权

US07933092B1 Method and apparatus for estimating a position of a head in a disk drive 有权
标题翻译：用于估计磁盘驱动器中磁头位置的方法和装置
公开(公告)号：US07933092B1
公开(公告)日：2011-04-26
申请号：US12470987
申请日：2009-05-22
申请人： Xueshi Yang , Michael Madden , Zining Wu
发明人： Xueshi Yang , Michael Madden , Zining Wu
IPC分类号： G11B5/596
CPC分类号： G11B5/5556 , G11B5/59611
摘要： In a method for providing an estimate of a head position for a disk drive, a readback signal is filtered. The readback signal includes a first position signal component corresponding to a first position pattern on a disk, and includes a second position signal component corresponding to a second position pattern on the disk. Filtering the readback signal includes using a filter determined based on statistical information regarding a noise component of the readback signal. An estimate of an amplitude of the first position signal component is generated based on the filtered readback signal, and an estimate of an amplitude of the second position signal component is generated based on the filtered readback signal. An estimate of a head position with respect to a track on the disk is generated based on the estimate of the amplitude of the first position signal component and the estimate of the amplitude of the second position signal component.
摘要翻译：在用于提供磁盘驱动器的磁头位置的估计的方法中，滤波回读信号。回读信号包括对应于盘上的第一位置图案的第一位置信号分量，并且包括对应于盘上的第二位置图案的第二位置信号分量。过滤回读信号包括使用基于关于回读信号的噪声分量的统计信息确定的滤波器。基于经滤波的回读信号生成第一位置信号分量的振幅的估计，并且基于滤波的回读信号生成第二位置信号分量的振幅的估计。基于第一位置信号分量的振幅的估计和第二位置信号分量的振幅的估计，产生相对于磁盘上的磁道的磁头位置的估计。

53. 发明授权

US07782232B2 Encoding and decoding methods using generalized concatenated codes (GCC) 有权
标题翻译：使用广义级联码（GCC）的编码和解码方法
公开(公告)号：US07782232B2
公开(公告)日：2010-08-24
申请号：US12187160
申请日：2008-08-06
申请人： Xueshi Yang , Gregory Burd , Heng Tang , Panu Chaichanavong , Zining Wu
发明人： Xueshi Yang , Gregory Burd , Heng Tang , Panu Chaichanavong , Zining Wu
IPC分类号： H03M13/00
CPC分类号： H03M13/2945 , G06F11/1068 , H03M13/033 , H03M13/1515 , H03M13/2903 , H03M13/2906
摘要： Systems, apparatuses, and methods for encoding and decoding using generalized concatenated codes (GCC) are described. The methods include receiving data; encoding the received data to obtain first encoded data; encoding the first encoded data until a GCC encoding reaches an intermediate level; and terminating the GCC encoding at the intermediate level.
摘要翻译：描述使用广义级联码（GCC）的编码和解码的系统，装置和方法。方法包括接收数据; 对所接收的数据进行编码以获得第一编码数据; 对第一编码数据进行编码，直到GCC编码达到中间级; 并终止中级的GCC编码。

54. 发明申请

US20090055605A1 METHOD AND SYSTEM FOR OBJECT-ORIENTED DATA STORAGE 审中-公开
标题翻译：面向对象数据存储的方法和系统
公开(公告)号：US20090055605A1
公开(公告)日：2009-02-26
申请号：US12184630
申请日：2008-08-01
申请人： Zining Wu , Xueshi Yang
发明人： Zining Wu , Xueshi Yang
IPC分类号： G06F12/02 , G06F12/16
CPC分类号： G11C11/56 , G11C11/5628 , G11C2211/5641
摘要： In accordance with the present invention, data may be written and read differently in accordance with their attributes, which may include, inter alia, critical vs. non-critical data, streaming vs. non-streaming media, confidential vs. non-confidential, or read/write speed requirements. A data block to be written may be considered an object, and is examined, and from its attributes one or more memory device operating modes may be determined, such as different numbers of bits per cell, different numbers of error-correction code (ECC) parities per user data block, and encryption vs. lack of encryption. The storage controller then performs the writing process according to the mode(s) of operation determined by the attributes. Multi-level flash memory, in particular, is capable of operating in these various modes, at a trade-off between reliability, speed, endurance on the one hand, and capacity on the other hand.
摘要翻译：根据本发明，数据可以根据它们的属性被不同地写入和读取，这些属性可以包括关键与非关键数据，流与非流媒体，机密与非机密，或读/写速度要求。要写入的数据块可以被认为是一个对象，并被检查，并且从其属性可以确定一个或多个存储器件操作模式，例如每个单元的不同位数，不同数量的纠错码（ECC）每个用户数据块的奇偶校验，以及加密与缺乏加密。然后，存储控制器根据由属性确定的操作模式执行写入处理。特别地，多级闪存能够以这些各种模式操作，一方面在可靠性，速度，耐力和容量之间进行折衷。

55. 发明申请

US20090040081A1 ENCODING AND DECODING METHODS USING GENERALIZED CONCATENATED CODES (GCC) 有权
标题翻译：使用通用的编码（GCC）编码和解码方法
公开(公告)号：US20090040081A1
公开(公告)日：2009-02-12
申请号：US12187160
申请日：2008-08-06
申请人： Xueshi Yang , Gregory Burd , Heng Tang , Panu Chaichanavong , Zinging Wu
发明人： Xueshi Yang , Gregory Burd , Heng Tang , Panu Chaichanavong , Zinging Wu
IPC分类号： H03M13/00
CPC分类号： H03M13/2945 , G06F11/1068 , H03M13/033 , H03M13/1515 , H03M13/2903 , H03M13/2906
摘要： Systems, apparatuses, and methods for encoding and decoding using generalized concatenated codes (GCC) are described. The methods include receiving data; encoding the received data to obtain first encoded data; encoding the first encoded data until a GCC encoding reaches an intermediate level; and terminating the GCC encoding at the intermediate level.
摘要翻译：描述使用广义级联码（GCC）的编码和解码的系统，装置和方法。方法包括接收数据; 对所接收的数据进行编码以获得第一编码数据; 对第一编码数据进行编码，直到GCC编码达到中间级; 并终止中级的GCC编码。

56. 发明申请

US20070296500A1 Channel state aided automatic gain control 有权
标题翻译：通道状态辅助自动增益控制
公开(公告)号：US20070296500A1
公开(公告)日：2007-12-27
申请号：US11450076
申请日：2006-06-09
申请人： Xueshi Yang
发明人： Xueshi Yang
IPC分类号： H03G3/00
CPC分类号： H03G3/3052
摘要： An apparatus comprises a circuit for producing a channel gain control signal, and an amplifier for amplifying a signal of interest in response to the channel gain control signal, wherein the channel gain control signal is generated from a channel state signal that is not derived from the signal of interest.
摘要翻译：一种装置包括用于产生信道增益控制信号的电路和用于响应于信道增益控制信号放大感兴趣的信号的放大器，其中信道增益控制信号是从不是从信道增益控制信号导出的信道状态信号产生的感兴趣的信号。

57. 发明授权

US09065623B1 Mixed mapping for rate compatible trellis coded modulation 有权
标题翻译：用于速率兼容网格编码调制的混合映射
公开(公告)号：US09065623B1
公开(公告)日：2015-06-23
申请号：US13249754
申请日：2011-09-30
申请人： Zhengang Chen , Shashi Kiran Chilappagari , Xueshi Yang , Gregory Burd
发明人： Zhengang Chen , Shashi Kiran Chilappagari , Xueshi Yang , Gregory Burd
IPC分类号： H04L1/00 , H03M13/25 , H04L27/18 , H04L27/34
CPC分类号： H04L1/006 , H03M13/25 , H03M13/256 , H03M13/6362 , H04L1/0041 , H04L1/0069 , H04L27/186 , H04L27/3416
摘要： Systems, methods, apparatus, and techniques are provided for producing encoded trellis coded modulation (TCM) data from user information. Encoding parameters are selected based on a target information rate. The encoding parameters include a first dimensionality value and a second dimensionality value. A first part of the user information is encoded based on the first dimensionality value to produce a first number of coded bits, and a second part of the user information is encoded based on the second dimensionality value to produce a second number of coded bits.
摘要翻译：提供了系统，方法，装置和技术，用于从用户信息产生编码网格编码调制（TCM）数据。基于目标信息速率来选择编码参数。编码参数包括第一维度值和第二维度值。用户信息的第一部分基于第一维度值进行编码，以产生第一数量的编码比特，并且基于第二维度值对用户信息的第二部分进行编码以产生第二数量的编码比特。

58. 发明授权

US08892809B2 Data compression and encoding in a memory system 有权
标题翻译：内存系统中的数据压缩和编码
公开(公告)号：US08892809B2
公开(公告)日：2014-11-18
申请号：US13279914
申请日：2011-10-24
申请人： Xueshi Yang
发明人： Xueshi Yang
IPC分类号： G06F12/00 , G06F15/16 , G06F13/12 , G06F12/02 , G06F12/04
CPC分类号： G06F12/023 , G06F12/0246 , G06F12/04 , G06F2212/1032 , G06F2212/401 , G06F2212/403 , G06F2212/7201
摘要： Embodiments provide a method comprising receiving input data comprising a plurality of data sectors; compressing the plurality of data sectors to generate a corresponding plurality of compressed data sectors; splitting a compressed data sector of the plurality of compressed data sectors to generate a plurality of split compressed data sectors; and storing the plurality of compressed data sectors, including the plurality of split compressed data sectors, in a plurality of memory pages of a memory.
摘要翻译：实施例提供一种方法，包括接收包括多个数据扇区的输入数据; 压缩所述多个数据扇区以产生对应的多个压缩数据扇区; 分割所述多个压缩数据扇区中的压缩数据扇区以产生多个分割压缩数据扇区; 以及将包括所述多个分割压缩数据扇区的所述多个压缩数据扇区存储在存储器的多个存储器页中。

59. 发明授权

US08799556B2 Adaptive read and write systems and methods for memory cells 有权
标题翻译：自适应读写系统和存储单元的方法
公开(公告)号：US08799556B2
公开(公告)日：2014-08-05
申请号：US13095094
申请日：2011-04-27
申请人： Xueshi Yang , Gregory Burd
发明人： Xueshi Yang , Gregory Burd
IPC分类号： G06F12/00 , G06F13/00 , G06F13/28 , G11C16/28 , G11C16/10 , G11C11/56
CPC分类号： G11C16/10 , G11C11/5628 , G11C11/5642 , G11C16/28 , G11C2211/5634
摘要： An apparatus including: a plurality of multi-level memory cells configured to store data, wherein one or more of the multi-level memory cells are designated as pilot memory cells, and wherein each pilot memory cell is configured to store known, pre-determined data; an estimation block configured to, based on the known, pre-determined data, determine (i) estimated mean values of level distributions of the multi-level memory cells and (ii) estimated standard deviation values of level distributions of the multi-level memory cells; and a computation block configured to compute at least optimal or near optimal detection threshold values of level distributions of the multi-level memory cells based, at least in part, on (i) the estimated mean values and (ii) the estimated standard deviation values, wherein the optimal or near optimal detection threshold values are to be used in order to facilitate reading of the data stored in the multi-level memory cells.
摘要翻译：一种装置，包括：多个多级存储器单元，被配置为存储数据，其中所述多级存储器单元中的一个或多个被指定为导频存储器单元，并且其中每个导频存储器单元被配置为存储已知的预定数据; 基于已知的预定数据，估计块确定（i）多级存储器单元的电平分布的估计平均值和（ii）多级存储器的级别分布的估计标准偏差值细胞; 以及计算块，被配置为至少部分地基于（i）估计的平均值和（ii）所估计的标准偏差值来计算所述多级存储器单元的电平分布的至少最佳或接近最佳检测阈值其中，要使用最佳或接近最佳检测阈值以便于读取存储在多级存储器单元中的数据。

60. 发明授权

US08732543B1 Tensor product codes for flash 有权
标题翻译：闪光灯的产品代码
公开(公告)号：US08732543B1
公开(公告)日：2014-05-20
申请号：US13184949
申请日：2011-07-18
申请人： Xueshi Yang
发明人： Xueshi Yang
IPC分类号： H03M13/00
CPC分类号： H03M13/2945 , H03M13/1102 , H03M13/1515 , H03M13/152 , H03M13/19 , H03M13/2906 , H03M13/2942
摘要： In embodiments, data may be encoded based on a tensor product code by encoding incoming data to produce first codewords, and encoding the first codewords to produce second codewords. The incoming data may be combined with the second codewords to produce messages, which can then be transmitted and/or stored. Decoding a received message may include encoding a data portion to produce an intermediate code, and decoding the intermediate code using a codeword portion of the message to produce a corrected codeword. The data portion may then be decoded using the corrected codeword to recover data from the message.
摘要翻译：在实施例中，可以通过对输入数据进行编码以产生第一码字，并且对第一码字进行编码以产生第二码字，可以基于张量产品码对数据进行编码。输入数据可以与第二码字组合以产生消息，然后可以发送和/或存储消息。对接收的消息进行解码可以包括对数据部分进行编码以产生中间代码，以及使用消息的码字部分对中间代码进行解码以产生校正的码字。然后可以使用校正的码字对数据部分进行解码，以从消息中恢复数据。

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