公开(公告)号：US07610019B2

公开(公告)日：2009-10-27

申请号：US11449068

申请日：2006-06-08

申请人： Jaekyun Moon ,  Younggyun Kim ,  Barrett J. Brickner ,  Paul C. Edwards ,  Michael E. Butenhoff

发明人： Jaekyun Moon ,  Younggyun Kim ,  Barrett J. Brickner ,  Paul C. Edwards ,  Michael E. Butenhoff

IPC分类号： H04B17/00

CPC分类号： H04L1/0001 ,  H04B7/0811 ,  H04B7/0814 ,  H04L1/0015 ,  H04L1/206

摘要： An apparatus for dynamic diversity signal reception based upon receiver-side link quality assessments includes two or more antennae. At least one switch is connected to the two or more antennae. A dynamic diversity controller is connected to the at least one switch. The dynamic diversity controller includes a link quality assessor to assess link quality and generate a link characterization value. A diversity configuration selector, responsive to the link characterization value, selectively activates the at least one switch to implement a dynamic diversity configuration. The link quality assessor includes a signal strength analyzer, a modem detector, and/or a MAC layer analyzer to assess the received signal and generate the link characterization value.

摘要翻译： 基于接收机侧链路质量评估的用于动态分集信号接收的装置包括两个或更多个天线。 至少一个开关连接到两个或更多个天线。 动态分集控制器连接到至少一个开关。 动态分集控制器包括链路质量评估者，以评估链路质量并生成链路特征值。 响应于链路特征值的分集配置选择器选择性地激活至少一个交换机以实现动态分集配置。 链路质量评估器包括信号强度分析器，调制解调器检测器和/或MAC层分析器，以评估所接收的信号并产生链路表征值。

公开(公告)号：US20070286268A1

公开(公告)日：2007-12-13

申请号：US11894102

申请日：2007-08-20

申请人： Younggyun Kim ,  Jaekyun Moon

发明人： Younggyun Kim ,  Jaekyun Moon

IPC分类号： H04B3/46

CPC分类号： H04L27/2662 ,  H04L25/03159 ,  H04L27/2657 ,  H04L27/2676 ,  H04L2025/03414

摘要： Digital communication signals that encode information in the phase may be susceptible to phase error from many sources. A device corrects for carrier and sampling phase errors, as well as additive phase noise. A digital phase locked loop simultaneously tracks the carrier phase error and the sampling phase error, and corrects the signal in the frequency domain. The device may use the sampling phase error to advance or delay the sampling window used to convert the signal from the time domain to the frequency domain.

摘要翻译： 在该阶段编码信息的数字通信信号可能容易受到许多来源的相位误差的影响。 设备校正载波和采样相位误差以及相位相位噪声。 数字锁相环同时跟踪载波相位误差和采样相位误差，并校正频域中的信号。 该装置可以使用采样相位误差推进或延迟用于将来自时域的信号转换到频域的采样窗口。

公开(公告)号：US20070079209A1

公开(公告)日：2007-04-05

申请号：US11224351

申请日：2005-09-13

申请人： Jihoon Park ,  Jaekyun Moon ,  Jun Lee

发明人： Jihoon Park ,  Jaekyun Moon ,  Jun Lee

IPC分类号： H03M13/00

CPC分类号： H03M13/09 ,  H03M13/033

摘要： A method of detecting an occurrence of an error event in data and an apparatus for the same are provided. The method includes: preparing an error detection code wherein syndrome sequences for dominant error events are all different; generating a codeword from source data using the error detection code; detecting the occurrence of the dominant error event in the codeword by checking a syndrome computed from the codeword; and determining a type and likely error starting positions of the occurred dominant error event using the syndrome sequences correspond to the syndrome.

摘要翻译： 提供一种检测数据中的错误事件的发生的方法及其装置。 该方法包括：准备错误检测码，其中主要误差事件的校正子序列全部不同; 使用所述错误检测码从源数据生成码字; 通过检查从码字计算的校正子来检测码字中的主要错误事件的发生; 并且使用所述综合征序列确定所发生的主要错误事件的类型和可能的错误开始位置对应于所述综合征。

公开(公告)号：US07173990B2

公开(公告)日：2007-02-06

申请号：US10141628

申请日：2002-05-06

申请人： Younggyun Kim ,  Farshid R Rad ,  Barrett J Brickner ,  Jaekyun Moon

发明人： Younggyun Kim ,  Farshid R Rad ,  Barrett J Brickner ,  Jaekyun Moon

IPC分类号： H04L1/02 ,  H04L5/12

CPC分类号： H04B7/0848 ,  H04B7/0837 ,  H04L1/06 ,  H04L25/0204 ,  H04L25/03159 ,  H04L25/067 ,  H04L27/38 ,  H04L2025/03414 ,  H04L2025/0342 ,  H04L2025/03426 ,  H04L2027/003 ,  H04L2027/004 ,  H04L2027/0057

摘要： A wireless communication technique enables equalization, soft demapping and phase error estimation functions to be performed jointly based on multiple observations of a transmitted symbol in wireless communication systems employing receive diversity. Multiple observations of a symbol are obtained from multiple antenna paths in a wireless receiver. Equalization, soft demapping and phase error estimation functions can be integrated within shared hardware, rather than distributed among separate hardware blocks, promoting reduced size, complexity and cost in a wireless receiver.

摘要翻译： 无线通信技术使得能够基于采用接收分集的无线通信系统中的传输符号的多个观察来共同执行均衡，软解映射和相位误差估计功能。 从无线接收机中的多个天线路径获得符号的多个观察结果。 均衡，软解映射和相位误差估计功能可以集成在共享硬件中，而不是分布在不同的硬件块之间，从而在无线接收机中促进尺寸减小，复杂度和成本的降低。

公开(公告)号：US07075547B2

公开(公告)日：2006-07-11

申请号：US10219397

申请日：2002-08-15

申请人： Jaekyun Moon

发明人： Jaekyun Moon

IPC分类号： G06T9/00

CPC分类号： G06K9/6286 ,  G06K9/6281 ,  G11B20/10009 ,  G11B20/10296 ,  H04L25/067

摘要： Low complexity signal-space detection can be applied to a variety of systems, e.g., data storage systems, data communication systems, DVD systems, systems that use media subject to a d=2 minimum run-length constraint, etc. The signal-space detector/method estimates a channel input symbol based on a finite number of observation samples. For example, in the binary input case, the signal-space detector divides a multidimensional space into two disjoint regions corresponding to opposite symbol decisions. The detection system/method determines in which region the observation vector falls and releases a corresponding hard decision, e.g., a binary symbol decision. Further, a soft decision can be provided that measures the reliability of the symbol decision.

公开(公告)号：US20060085721A1

公开(公告)日：2006-04-20

申请号：US11242874

申请日：2005-10-05

申请人： Jaekyun Moon ,  Jihoon Park ,  Jun Lee

发明人： Jaekyun Moon ,  Jihoon Park ,  Jun Lee

IPC分类号： H03M13/00

CPC分类号： G11B20/1813 ,  H03M13/09

摘要： Apparatuses and methods for detecting error events in a codeword reproduced by perpendicular magnetic recording medium (PMR. The method includes: generating cyclic redundancy check (CRC) parity bits based on a generator polynomial for a source information sequence to be recorded on PMR medium and recording a codeword in which the generated CRC parity bits are added to the source information sequence; and reading the recorded codeword and an error event in the read codeword. It is possible to detect error events when a codeword recorded by PMR is read, using a small number of bits.

摘要翻译： 用于检测由垂直磁记录介质再现的码字中的错误事件的装置和方法（PMR。该方法包括：基于用于待记录在PMR介质上的源信息序列的生成多项式和记录的循环冗余校验（CRC）奇偶校验位 其中生成的CRC奇偶校验位被添加到源信息序列的码字;以及读取所读取的码字中记录的码字和错误事件，当读取由PMR记录的码字时，可以使用小的 位数。

公开(公告)号：US08327217B1

公开(公告)日：2012-12-04

申请号：US12589635

申请日：2009-10-26

申请人： Seongwook Jeong ,  Jaekyun Moon

发明人： Seongwook Jeong ,  Jaekyun Moon

IPC分类号： G06F11/00

CPC分类号： H04L25/067

摘要： A probability is determined, including by obtaining a set of probability ratios, wherein each probability ratio in the set is a ratio of a first probability to a second probability. A probability P(Em=z) that an mth error symbol Em has a level of z is determining based at least in part on one or more dominant error patterns.

摘要翻译： 确定概率，包括通过获得一组概率比，其中集合中的每个概率比是第一概率与第二概率的比率。 第m个误差符号Em具有z的电平的概率P（Em = z）至少部分地基于一个或多个主要误差模式来确定。

公开(公告)号：US08108759B2

公开(公告)日：2012-01-31

申请号：US11999263

申请日：2007-12-04

申请人： Jaekyun Moon ,  Jihoon Park

发明人： Jaekyun Moon ,  Jihoon Park

IPC分类号： H03M13/00

CPC分类号： H03M13/15

摘要： In general, the disclosure describes techniques for detecting and correcting single or multiple occurrences of data error patterns. This disclosure discusses the generation and application of high-rate error-pattern-correcting codes to correct single instances of targeted error patterns in codewords, and to further correct a significant portion of multiple instances of targeted error patterns, with the least redundancy. In accordance with the techniques, a lowest-degree generator polynomial may be constructed that targets a set of dominant error patterns that make up a very large percentage of all observed occurrences of errors. The lowest-degree generator polynomial produces distinct, non-overlapping syndrome sets for the target error patterns. The lowest-degree generator polynomial may be constructed such that no two error patterns within the list of dominant error patterns map to the same syndrome set, and the single occurrence and starting position of any of the target error patterns can be successfully identified.

摘要翻译： 通常，本公开描述了用于检测和校正单次或多次数据错误模式的技术。 该公开内容讨论了高速率错误模式校正码的生成和应用，以纠正码字中的目标错误模式的单个实例，并且以最小冗余度进一步校正目标错误模式的多个实例的重要部分。 根据这些技术，可以构造最低度生成多项式，其针对构成所有观察到的错误出现的非常大百分比的一组主要误差模式。 最低度生成多项式为目标错误模式产生不同的，非重叠的综合征集。 可以构造最低度生成多项式，使得在主要误差模式列表内没有两个错误模式映射到相同的校正子集合，并且可以成功地识别任何目标错误模式的单个出现和开始位置。

公开(公告)号：US07649952B1

公开(公告)日：2010-01-19

申请号：US11174428

申请日：2005-07-01

申请人： Jaekyun Moon

发明人： Jaekyun Moon

IPC分类号： H04L5/12

CPC分类号： H04L25/03318 ,  H04L25/03203

摘要： A method of analyzing soft symbol information in a communication system that transmits multiple independent data streams is disclosed. The method includes setting a trellis structure using a fixed spatial delay constraint, calculating a joint probability between a targeted symbol and a set of observation samples either recursively or nonrecursively, and approximating a likelihood function for a given branch by a single probability density function with mean and variance computed based on available soft information on past symbols relative to the branch that is being currently considered.

摘要翻译： 公开了一种在发送多个独立数据流的通信系统中分析软符号信息的方法。 该方法包括使用固定空间延迟约束设置网格结构，以递归或非递归方式计算目标符号和一组观察样本之间的联合概率，并且通过具有平均值的单个概率密度函数近似给定分支的似然函数 以及基于当前考虑的关于分支的过去符号的可用软信息计算的方差。

公开(公告)号：US20080148129A1

公开(公告)日：2008-06-19

申请号：US11999263

申请日：2007-12-04

申请人： Jaekyun Moon ,  Jihoon Park

发明人： Jaekyun Moon ,  Jihoon Park

IPC分类号： G06F11/10 ,  H03M13/15

CPC分类号： H03M13/15

摘要： In general, the disclosure describes techniques for detecting and correcting single or multiple occurrences of data error patterns. This disclosure discusses the generation and application of high-rate error-pattern-correcting codes to correct single instances of targeted error patterns in codewords, and to further correct a significant portion of multiple instances of targeted error patterns, with the least redundancy. In accordance with the techniques, a lowest-degree generator polynomial may be constructed that targets a set of dominant error patterns that make up a very large percentage of all observed occurrences of errors. The lowest-degree generator polynomial produces distinct, non-overlapping syndrome sets for the target error patterns. The lowest-degree generator polynomial may be constructed such that no two error patterns within the list of dominant error patterns map to the same syndrome set, and the single occurrence and starting position of any of the target error patterns can be successfully identified.

摘要翻译： 通常，本公开描述了用于检测和校正单次或多次数据错误模式的技术。 该公开内容讨论了高速率错误模式校正码的生成和应用，以纠正码字中的目标错误模式的单个实例，并且以最小冗余度进一步校正目标错误模式的多个实例的重要部分。 根据这些技术，可以构造最低度生成多项式，其针对构成所有观察到的错误出现的非常大百分比的一组主要误差模式。 最低度生成多项式为目标错误模式产生不同的，非重叠的综合征集。 可以构造最低度生成多项式，使得在主要误差模式列表内没有两个错误模式映射到相同的校正子集合，并且可以成功地识别任何目标错误模式的单个出现和开始位置。