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1. 发明授权

US09048879B1 Error correction system using an iterative product code 有权
标题翻译：纠错系统使用迭代产品代码
公开(公告)号：US09048879B1
公开(公告)日：2015-06-02
申请号：US13586710
申请日：2012-08-15
申请人： Shaohua Yang , Zining Wu , Gregory Burd , Xueshi Yang , Hongwei Song , Nedeljko Varnica
发明人： Shaohua Yang , Zining Wu , Gregory Burd , Xueshi Yang , Hongwei Song , Nedeljko Varnica
IPC分类号： H03M13/29 , H04L1/00
CPC分类号： H03M13/2945 , H03M13/098 , H03M13/1102 , H03M13/1515 , H03M13/23 , H03M13/2909 , H03M13/2957 , H03M13/3746 , H04L1/0065
摘要： An error correction system includes an iterative code that employs an interleaved component code and an embedded parity component code. In some embodiments, on the transmission side, input signals received at an input node are encoded based on the interleaved code, which encodes an interleaved version of the input data to produce a first set of codewords. At least a portion of the first set of codewords preferably is divided into a plurality of symbols which are encoded based on the embedded parity code to provide encoded data. Similarly, in some embodiments, on the receiving side, received data are detected to produce detected information and soft outputs. The detected information is decoded based on the embedded parity code to obtain decoded information. The decoded information preferably is used, together with other soft information, by an interleaved decoder to generate reliability metrics for biasing a subsequent decoding iteration.
摘要翻译：纠错系统包括使用交织分量代码和嵌入奇偶校验分量代码的迭代代码。在一些实施例中，在传输侧，在输入节点处接收的输入信号基于交织的代码进行编码，该代码编码输入数据的交错版本以产生第一组码字。第一组码字的至少一部分优选地被划分为多个符号，这些符号基于嵌入的奇偶校验码被编码以提供编码数据。类似地，在一些实施例中，在接收侧，检测所接收的数据以产生检测到的信息和软输出。检测到的信息根据嵌入的奇偶校验码进行解码以获得解码的信息。解码的信息优选地与其他软信息一起被交织的解码器使用以产生用于偏置随后的解码迭代的可靠性度量。

2. 发明授权

US08788916B2 Architecture and control of reed-solomon error-correction decoding 有权
标题翻译：簧片单声道纠错解码的架构与控制
公开(公告)号：US08788916B2
公开(公告)日：2014-07-22
申请号：US13554830
申请日：2012-07-20
申请人： Siu-Hung Fred Au , Gregory Burd , Zining Wu , Jun Xu , Ichiro Kikuchi , Tony Yoon
发明人： Siu-Hung Fred Au , Gregory Burd , Zining Wu , Jun Xu , Ichiro Kikuchi , Tony Yoon
IPC分类号： H03M13/00
CPC分类号： H03M13/458 , H03M13/098 , H03M13/1102 , H03M13/1515 , H03M13/153 , H03M13/1545 , H03M13/1555 , H03M13/2906 , H03M13/3707 , H03M13/4146 , H03M13/45 , H03M13/451 , H03M13/63 , H03M13/6511
摘要： Systems and methods are provided for implementing various aspects of a Reed-Solomon (RS) error-correction system. A detector can provide a decision-codeword from a channel and can also provide soft-information for the decision-codeword. If the decision-codeword corresponds to an inner code and an RS code is the outer code, a soft-information map can process the soft-information for the decision-codeword to produce soft-information for a RS decision-codeword. A RS decoder can employ the Berlekamp-Massey algorithm (BMA), list decoding, and a Chien search, and can include a pipelined architecture. A threshold-based control circuit can be used to predict whether list decoding will be needed and can suspend the list decoding operation if it predicts that list decoding is not needed.
摘要翻译：提供系统和方法来实现里德 - 所罗门（RS）纠错系统的各个方面。检测器可以从信道提供判决码字，并且还可以为判决码字提供软信息。如果判决码字对应于内码，RS码是外码，则软信息映射可以处理用于判决码字的软信息以产生用于RS判决码字的软信息。 RS解码器可以使用Berlekamp-Massey算法（BMA），列表解码和Chien搜索，并且可以包括流水线架构。可以使用基于阈值的控制电路来预测是否需要列表解码，并且如果它预测不需要列表解码，则可以暂停列表解码操作。

3. 发明授权

US08583981B2 Concatenated codes for holographic storage 有权
标题翻译：全息存储连接码
公开(公告)号：US08583981B2
公开(公告)日：2013-11-12
申请号：US11955005
申请日：2007-12-12
申请人： Nedeljko Varnica , Gregory Burd , Seo-How Low , Lingyan Sun , Zining Wu
发明人： Nedeljko Varnica , Gregory Burd , Seo-How Low , Lingyan Sun , Zining Wu
IPC分类号： H03M13/00
CPC分类号： H03M13/116 , G06F11/1008 , H03M13/1102 , H03M13/152 , H03M13/2906 , H03M13/2957 , H03M13/2966 , H03M13/353 , H03M13/6561
摘要： Systems and methods for constructing concatenated codes for data storage channels, such as holographic storage channels, are provided. The concatenated codes include an outer BCH code and an inner iteratively decodable code, such as an LDPC code or turbo code. The correction power and coding rate of one or both of the codes may be programmable based on the channel characteristics and the desired SNR coding gain. The correction power and/or coding rate of the inner and/or outer code may also be dynamically adjusted in real-time to compensate for time-varying error conditions on the channel.
摘要翻译：提供了用于构建诸如全息存储通道的数据存储通道的级联代码的系统和方法。连接的代码包括外部BCH码和内部可迭代地解码的码，例如LDPC码或turbo码。一个或两个代码的校正功率和编码率可以基于信道特性和期望的SNR编码增益来编程。内部和/或外部代码的校正功率和/或编码率也可以被实时动态地调整以补偿信道上的时变误差条件。

4. 发明授权

US08489960B1 LDPC codes and expansion method 有权
标题翻译： LDPC码和扩展方法
公开(公告)号：US08489960B1
公开(公告)日：2013-07-16
申请号：US13614065
申请日：2012-09-13
申请人： Adina Matache , Heng Tang , Gregory Burd , Aditya Ramamoorthy , Jun Xu , Zining Wu
发明人： Adina Matache , Heng Tang , Gregory Burd , Aditya Ramamoorthy , Jun Xu , Zining Wu
IPC分类号： H03M13/00
CPC分类号： H03M13/1177 , H03M13/116 , H03M13/1188
摘要： A communications device including a low-density parity check (LDPC) encoder and a transmitter. The LDPC encoder is configured to (i) receive data, and (ii) in response to the received data, generate encoded data using a predetermined LDPC matrix, in which the predetermined LDPC matrix is specified by a predetermined base matrix. The transmitter is configured to transmit the encoded data over a communications channel.
摘要翻译：一种包括低密度奇偶校验（LDPC）编码器和发射机的通信设备。 LDPC编码器被配置为（i）接收数据，并且（ii）响应于所接收的数据，使用预定的LDPC矩阵来生成编码数据，其中预定的LDPC矩阵由预定的基本矩阵指定。发射机被配置为通过通信信道发送编码数据。

5. 发明授权

US08441750B1 Method and system for compensating for adjacent tracks during reading of data 有权
标题翻译：在数据读取期间补偿相邻轨道的方法和系统
公开(公告)号：US08441750B1
公开(公告)日：2013-05-14
申请号：US13610468
申请日：2012-09-11
申请人： Nitin Nangare , Gregory Burd , Zining Wu
发明人： Nitin Nangare , Gregory Burd , Zining Wu
IPC分类号： G11B5/09 , G11B5/035
CPC分类号： G11B5/012 , G11B5/09 , G11B5/4886 , G11B20/10009 , G11B2220/2516
摘要： A storage controller includes a device controller and a read data channel. The read data channel includes a decoder for decoding output of a detector, where the detector is for reading data requested from a storage medium by the device controller, and the storage medium has a plurality of tracks of data thereon. When the device controller requests data from a current track of data on the storage device, the detector reads an adjacent track of data, the decoder decodes data from the adjacent track of data, the detector reads data from the current track, and the decoder decodes the data read from the current track, based on the decoded and stored data from the adjacent track of data. A storage system includes a storage medium having a plurality of tracks of data thereon and a storage controller as described above.
摘要翻译：存储控制器包括设备控制器和读取数据通道。读取数据通道包括用于解码检测器的输出的解码器，其中检测器用于从设备控制器读取从存储介质请求的数据，并且存储介质上有多条数据轨迹。当设备控制器从存储设备上的当前数据轨道请求数据时，检测器读取相邻的数据轨道，解码器从相邻的数据轨道解码数据，检测器从当前轨道读取数据，并且解码器解码基于来自相邻轨道的数据的解码和存储的数据从当前轨道读取的数据。存储系统包括其上具有多条数据轨道的存储介质和如上所述的存储控制器。

6. 发明授权

US08331169B1 Determining threshold voltage distribution in flash memory 有权
标题翻译：确定闪存中的阈值电压分布
公开(公告)号：US08331169B1
公开(公告)日：2012-12-11
申请号：US13323787
申请日：2011-12-12
申请人： Xueshi Yang , Zining Wu , Gregory Burd
发明人： Xueshi Yang , Zining Wu , Gregory Burd
IPC分类号： G11C7/00
CPC分类号： G11C16/26 , G11C16/06 , G11C16/3404
摘要： Methods, apparatuses, and systems for comparing threshold voltages of a plurality of flash memory cells to a plurality of reference voltages. A number of flash memory cells having threshold voltages that fall within each bin of a plurality of bins is determined. The plurality of bins each represent a plurality of threshold voltage ranges. A threshold voltage distribution of the plurality of flash memory cells is calculated based at least in part on the number of flash memory cells that fall into each of the bins.
摘要翻译：用于将多个快闪存储器单元的阈值电压与多个参考电压进行比较的方法，装置和系统。确定具有落在多个箱体的每个箱体内的阈值电压的多个闪存单元。多个箱体各自表示多个阈值电压范围。至少部分地基于落入每个仓的闪存单元的数量来计算多个快闪存储单元的阈值电压分布。

7. 发明申请

US20120284588A1 ARCHITECTURE AND CONTROL OF REED-SOLOMON ERROR-CORRECTION DECODING 有权
公开(公告)号：US20120284588A1
公开(公告)日：2012-11-08
申请号：US13554830
申请日：2012-07-20
申请人： Siu-Hung Fred Au , Gregory Burd , Zining Wu , Jun Xu , Ichiro Kikuchi , Tony Yoon
发明人： Siu-Hung Fred Au , Gregory Burd , Zining Wu , Jun Xu , Ichiro Kikuchi , Tony Yoon
IPC分类号： H03M13/07 , G06F11/10
CPC分类号： H03M13/458 , H03M13/098 , H03M13/1102 , H03M13/1515 , H03M13/153 , H03M13/1545 , H03M13/1555 , H03M13/2906 , H03M13/3707 , H03M13/4146 , H03M13/45 , H03M13/451 , H03M13/63 , H03M13/6511
摘要： Systems and methods are provided for implementing various aspects of a Reed-Solomon (RS) error-correction system. A detector can provide a decision-codeword from a channel and can also provide soft-information for the decision-codeword. If the decision-codeword corresponds to an inner code and an RS code is the outer code, a soft-information map can process the soft-information for the decision-codeword to produce soft-information for a RS decision-codeword. A RS decoder can employ the Berlekamp-Massey algorithm (BMA), list decoding, and a Chien search, and can include a pipelined architecture. A threshold-based control circuit can be used to predict whether list decoding will be needed and can suspend the list decoding operation if it predicts that list decoding is not needed.

8. 发明授权

US08225185B1 RS codec architecture that combines a compact encoder and serial BMA 有权
标题翻译： RS编解码架构，结合了紧凑型编码器和串行BMA
公开(公告)号：US08225185B1
公开(公告)日：2012-07-17
申请号：US12027778
申请日：2008-02-07
申请人： Heng Tang , Fred Siu-Hung Au , Gregory Burd , Zining Wu
发明人： Heng Tang , Fred Siu-Hung Au , Gregory Burd , Zining Wu
IPC分类号： H03M13/15 , H03M13/00
CPC分类号： H03M13/6502 , H03M13/153 , H03M13/157 , H03M13/158 , H03M13/159
摘要： A Reed-Solomon (RS) coding system is provided that can employ an RS code of varying correction power, and which can maintain a small area requirement. The Reed-Solomon coding system can include an RS encoder and an RS decoder. Both of these components can be implemented using primarily constant multipliers rather than more area-consuming general multipliers. For example, the programmable encoder can be realized by implementing polynomials with constant coefficients rather than variable coefficients, and a Berlekamp-Massey algorithm performed by the decoder can be realized using a serial implementation. To further reduce the area of the coding system, hardware sharing can be utilized between the RS encoder and the RS decoder.
摘要翻译：提供了一种可以采用不同校正功率的RS码的Reed-Solomon（RS）编码系统，可以保持小面积要求。里德 - 所罗门编码系统可以包括RS编码器和RS解码器。这些组件都可以使用主要的恒定乘法器来实现，而不是使用更多的占用空间的一般乘法器。例如，可编程编码器可以通过实现具有常数系数而不是可变系数的多项式来实现，并且可以使用串行实现来实现由解码器执行的Berlekamp-Massey算法。为了进一步减小编码系统的面积，可以在RS编码器和RS解码器之间利用硬件共享。

9. 发明授权

US08225148B2 Systems and methods for achieving higher coding rate using parity interleaving 有权
标题翻译：使用奇偶交织实现更高编码率的系统和方法
公开(公告)号：US08225148B2
公开(公告)日：2012-07-17
申请号：US13112915
申请日：2011-05-20
申请人： Heng Tang , Gregory Burd , Zining Wu , Panu Chaichanavong
发明人： Heng Tang , Gregory Burd , Zining Wu , Panu Chaichanavong
IPC分类号： G06F11/00 , H03M13/00
CPC分类号： G11B20/1423 , H03M5/145
摘要： The disclosed technology provides systems and methods for encoding data based on a run-length-limited code and an error correction code to provide codewords. The codewords include RLL-encoded data that are produced based on the RLL code, and parity information that are produced based on the error correction code. The parity information is interleaved among the RLL-encoded data. In one embodiment, the codeword is produced by separately producing the RLL-encoded data and the parity information, and interleaving the parity information among the RLL-encoded data. In one embodiment, the codeword is produced by producing the RLL-encoded data, and using erasure decoding to compute the parity information.
摘要翻译：所公开的技术提供了基于游程长度限制代码和纠错码来编码数据以提供码字的系统和方法。码字包括基于RLL码产生的RLL编码数据和基于纠错码产生的奇偶校验信息。奇偶校验信息在RLL编码数据之间进行交织。在一个实施例中，通过分别产生RLL编码数据和奇偶校验信息，以及在RLL编码数据之间交织奇偶校验信息来产生码字。在一个实施例中，通过产生RLL编码数据并使用擦除解码来计算奇偶校验信息来产生码字。

10. 发明授权

US08086945B1 Tensor product codes containing an iterative code 有权
标题翻译：包含迭代代码的产品代码
公开(公告)号：US08086945B1
公开(公告)日：2011-12-27
申请号：US12946112
申请日：2010-11-15
申请人： Jun Xu , Panu Chaichanavong , Gregory Burd , Zining Wu
发明人： Jun Xu , Panu Chaichanavong , Gregory Burd , Zining Wu
IPC分类号： G06F11/00
CPC分类号： H03M13/2933 , H03M13/2909 , H03M13/2948
摘要： Systems and methods are provided for encoding a stream of datawords based on a tensor product code to provide a stream of codewords, and detecting and decoding a stream of received data based on a tensor product code to provide a decoded stream of data. In one aspect, the tensor product code is based on two codes including an inner code and an outer parity hiding code, where the outer parity hiding code is an iterative code. In certain embodiments, the outer parity hiding code is a Turbo code or a low density parity check (LDPC) code.
摘要翻译：提供了系统和方法，用于基于张量产品代码来编码数据词流，以提供码字流，并且基于张量产品代码检测和解码接收到的数据流，以提供经解码的数据流。在一个方面，张量乘积代码基于两个代码，包括内部代码和外部奇偶校验隐藏代码，其中外部奇偶校验隐藏代码是迭代代码。在某些实施例中，外部奇偶校验隐藏代码是Turbo码或低密度奇偶校验（LDPC）码。

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