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1. 发明申请

US20080151405A1 SYSTEM AND METHOD FOR DRIVE-SIDE GUARANTEE OF QUALITY OF SERVICE AND FOR EXTENDING THE LIFETIME OF STORAGE DEVICES 有权
标题翻译：驱动器质量保证和延长存储设备寿命的系统和方法
公开(公告)号：US20080151405A1
公开(公告)日：2008-06-26
申请号：US12021645
申请日：2008-01-29
申请人： Erozan Mehmet Kurtas , Mehmet Fatih Erden , Xueshi Yang
发明人： Erozan Mehmet Kurtas , Mehmet Fatih Erden , Xueshi Yang
IPC分类号： G11B27/36
CPC分类号： G11B27/36 , G11B20/10101 , G11B20/182 , G11B2020/1863
摘要： A storage device has a storage medium, a plurality of read-write mechanisms, a quality monitoring and book-keeping unit and a scheduling unit. The plurality of read-write mechanisms is coupled to the storage medium. The quality monitoring and book-keeping unit is coupled to the plurality of read-write mechanisms and is adapted to monitor at least one performance parameter associated with each read-write mechanism during operation. The scheduling unit is coupled to the quality monitoring and book-keeping unit. The scheduling unit is adapted to rank each of the plurality of read-write mechanisms according to the at least one performance parameter and to responsively schedule use of a read-write mechanism according to its rank.
摘要翻译：存储装置具有存储介质，多个读写机构，质量监视和记录单元以及调度单元。多个读写机构耦合到存储介质。质量监视和记录单元耦合到多个读写机构，并且适于在操作期间监视与每个读写机构相关联的至少一个性能参数。调度单元耦合到质量监视和记录单元。调度单元适于根据至少一个性能参数对多个读写机构中的每一个进行排序，并根据其等级响应地调度对读写机制的使用。

2. 发明授权

US07643235B2 Synchronization for data communication 有权
标题翻译：同步数据通信
公开(公告)号：US07643235B2
公开(公告)日：2010-01-05
申请号：US11536310
申请日：2006-09-28
申请人： Mehmet Fatih Erden , Erozan Mehmet Kurtas , Mark Edward Re
发明人： Mehmet Fatih Erden , Erozan Mehmet Kurtas , Mark Edward Re
IPC分类号： G11B5/09
CPC分类号： G11B5/59616 , G11B5/59627
摘要： Timing recovery and synchronization for data communication is utilized. A pilot sequence of signals can be selected to improve recovery of a phase offset and a frequency offset in a communication system. Sampling instances can further be adjusted based on pilot sequences within a user data portion.
摘要翻译：利用数据通信的定时恢复和同步。可以选择信号的导频序列以改善通信系统中的相位偏移和频率偏移的恢复。可以基于用户数据部分内的导频序列来进一步调整采样实例。

3. 发明授权

US07602863B2 Method and apparatus for providing iterative timing recovery 有权
标题翻译：提供迭代定时恢复的方法和装置
公开(公告)号：US07602863B2
公开(公告)日：2009-10-13
申请号：US10950312
申请日：2004-09-24
申请人： Piya Kovintavewat , John Robert Barry , Mehmet Fatih Erden , Erozan Mehmet Kurtas
发明人： Piya Kovintavewat , John Robert Barry , Mehmet Fatih Erden , Erozan Mehmet Kurtas
IPC分类号： H04L27/06
CPC分类号： H04L25/03337 , H04L7/0054
摘要： A method includes the steps of receiving a signal indicative of data bits, and performing per survivor processing-iterative timing recovery (PSP-ITR) on the received signal to generate probabilities of the data bits. To perform PSP-ITR on the received signal, the signal can be processed using a per survivor processing-soft decision algorithm (PSP-SDA) which jointly performs timing recovery and equalization in accordance with embodiments of the present invention. The soft decision algorithm (SDA) can be, for example, a Bahl, Cocke, Jelinek, and Raviv (BCJR) algorithm or a Soft Output Viterbi Algorithm (SOVA) modified in accordance with the concepts of the present invention such that it is configured to implement per survivor processing (PSP) to jointly perform timing recovery and equalization.
摘要翻译：一种方法包括以下步骤：接收指示数据比特的信号，并对接收到的信号执行每个幸存者处理 - 迭代定时恢复（PSP-ITR），以产生数据比特的概率。为了对接收的信号执行PSP-ITR，可以使用根据本发明的实施例的共同执行定时恢复和均衡的每个幸存者处理软判决算法（PSP-SDA）来处理信号。软判决算法（SDA）可以是例如根据本发明的概念修改的Bahl，Cocke，Jelinek和Raviv（BCJR）算法或软输出维特比算法（SOVA），使得其被配置实施每个幸存者处理（PSP）来共同执行定时恢复和均衡。

4. 发明申请

US20080080082A1 SYNCHRONIZATION FOR DATA COMMUNICATION 有权
标题翻译：数据通信同步
公开(公告)号：US20080080082A1
公开(公告)日：2008-04-03
申请号：US11536310
申请日：2006-09-28
申请人： Mehmet Fatih Erden , Erozan Mehmet Kurtas , Mark Edward Re
发明人： Mehmet Fatih Erden , Erozan Mehmet Kurtas , Mark Edward Re
IPC分类号： G11B5/09 , G11B5/596
CPC分类号： G11B5/59616 , G11B5/59627
摘要： Timing recovery and synchronization for data communication is utilized. A pilot sequence of signals can be selected to improve recovery of a phase offset and a frequency offset in a communication system. Sampling instances can further be adjusted based on pilot sequences within a user data portion.
摘要翻译：利用数据通信的定时恢复和同步。可以选择信号的导频序列以改善通信系统中的相位偏移和频率偏移的恢复。可以基于用户数据部分内的导频序列来进一步调整采样实例。

5. 发明授权

US07286313B2 Correcting radial incoherence in servo track sensing 有权
标题翻译：纠正伺服轨迹检测中的径向不相干性
公开(公告)号：US07286313B2
公开(公告)日：2007-10-23
申请号：US11012813
申请日：2004-12-15
申请人： Mehmet Fatih Erden , Erozan Mehmet Kurtas
发明人： Mehmet Fatih Erden , Erozan Mehmet Kurtas
IPC分类号： G11B5/09
CPC分类号： G11B5/59627
摘要： A servo track sensing system receives equalized servo data from a servo demodulator and corrects for radial incoherence in the servo data. The system has a radial incoherence estimator that receives the equalized servo data and provides a radial incoherence estimate. A sequence detector receives the equalized servo data and the radial incoherence estimate, and provides a sequence detector output. A correlator receives the sequence detector output and provides correlator output data. The correlator output data has a reduced level of errors due to radial incoherence.
摘要翻译：伺服磁道感测系统从伺服解调器接收均衡的伺服数据，并校正伺服数据中的径向不相干性。该系统具有径向相干估计器，其接收均衡的伺服数据并提供径向不相干估计。序列检测器接收均衡的伺服数据和径向不相干估计，并提供序列检测器输出。相关器接收序列检测器输出并提供相关器输出数据。相关器输出数据由于径向不连贯而具有降低的误差水平。

6. 发明授权

US07424077B2 Jitter sensitive maximum-a-posteriori sequence detection 有权
标题翻译：抖动敏感最大后验序列检测
公开(公告)号：US07424077B2
公开(公告)日：2008-09-09
申请号：US11105008
申请日：2005-04-13
申请人： Xueshi Yang , Erozan Mehmet Kurtas , Rohit Negi , Xun Zhang
发明人： Xueshi Yang , Erozan Mehmet Kurtas , Rohit Negi , Xun Zhang
IPC分类号： H04L7/02
CPC分类号： H04L25/03178 , G11B20/10046 , G11B20/10212
摘要： A channel detector has an anchor points inserter, a desired signal calculator, a distance calculator and a data detector. The anchor points inserter is adapted to choose values of expected transition locations for transition shifts within a received signal and to insert anchor points corresponding to the chosen values within a bit detection interval. The desired signal calculator is coupled to the anchor points inserter and is adapted to estimate desired signals corresponding to transition location information from the anchor points inserter. The distance calculator is coupled to the desired signal calculator and is adapted to generate a distance calculator output based on distances between the received signal and each of the desired signals. The data detector is coupled to the distance calculator and is adapted to identify a bit sequence corresponding to a desired signal having a minimum distance from the received signal. The data detector is adapted to generate an output based on the distance calculator output.
摘要翻译：信道检测器具有锚点插入器，期望的信号计算器，距离计算器和数据检测器。锚点插入器适于选择接收信号内的转变位移的预期转换位置的值，并且在位检测间隔内插入与所选择的值对应的锚定点。期望的信号计算器耦合到锚点插入器，并且适于估计对应于来自锚点插入器的转换位置信息的期望信号。距离计算器耦合到期望的信号计算器，并且适于基于接收信号和每个期望信号之间的距离产生距离计算器输出。数据检测器耦合到距离计算器，并且适于识别与从接收信号具有最小距离的期望信号相对应的比特序列。数据检测器适于基于距离计算器输出生成输出。

7. 发明授权

US07561640B2 Method and apparatus for interative noise whitening with causal and anti-causal prediction filters 有权
标题翻译：用因果和反因果预测滤波器迭代噪声增白的方法和装置
公开(公告)号：US07561640B2
公开(公告)日：2009-07-14
申请号：US11102622
申请日：2005-04-08
申请人： Mustafa Nazmi Kaynak , Erozan Mehmet Kurtas
发明人： Mustafa Nazmi Kaynak , Erozan Mehmet Kurtas
IPC分类号： H04L27/06
CPC分类号： H04L25/03076 , H04L2025/03356 , H04L2025/03503 , H04L2025/03611
摘要： A channel detector includes a belief propagation detector that is coupled to a channel and adapted to receive a channel output and to generate tentative bit decisions based in part on the channel output. The channel detector further includes a causal and anti-causal channel output module coupled to the belief propagation detector and adapted to generate causal and anti-causal channel outputs based on the tentative bit decisions. The channel detector also includes a noise prediction module coupled to the causal and anti-causal channel output module and adapted to predict noise samples based on a difference between the channel output and the causal and anti-causal channel outputs. Further, the channel detector includes a noise prediction module adapted to whiten the channel output with the predicted noise samples and to return the whitened channel output to the belief propagation detector to generate new tentative bit decisions.
摘要翻译：信道检测器包括置信传播检测器，其被耦合到信道并且适于接收信道输出并且部分地基于信道输出产生临时位决定。信道检测器还包括耦合到置信传播检测器的因果信道输出模块和反因果信道输出模块，其适于基于暂定比特决定产生因果信道和反因果信道输出。信道检测器还包括耦合到因果信道和反因果信道输出模块的噪声预测模块，并且适于基于信道输出与因果信道和反因果信道输出之间的差异来预测噪声样本。此外，信道检测器包括噪声预测模块，其适于使用预测的噪声样本对信道输出进行白化，并将白化的信道输出返回到置信传播检测器以产生新的暂定位决定。

8. 发明申请

US20070288833A1 Communication channel with reed-solomon encoding and single parity check 有权
标题翻译：具有芦苇编码和单奇偶校验的通信信道
公开(公告)号：US20070288833A1
公开(公告)日：2007-12-13
申请号：US11450317
申请日：2006-06-09
申请人： Ivana Djurdjevic , Erozan Mehmet Kurtas , Cenk Argon
发明人： Ivana Djurdjevic , Erozan Mehmet Kurtas , Cenk Argon
IPC分类号： H03M13/03 , G06F11/00
CPC分类号： G11B20/10009 , G11B20/1833 , H03M13/098 , H03M13/1515 , H03M13/3905 , H03M13/3927
摘要： A communication channel including Reed-Solomon (RS) and single-parity-check (SPC) encoding/decoding. Multiple RS codewords are combined and then SPC encoded into an RS/SPC array. A soft-input soft-output (SISO) channel detector detects the RS/SPC encoded bits and provides soft (reliability) information on these bits. A combined RS and SPC error correction block provides a recovered user output. An iterative soft input decoding algorithm combines RS and SPC error correction.
摘要翻译：包括Reed-Solomon（RS）和单奇偶校验（SPC）编码/解码的通信信道。组合多个RS码字，然后将SPC编码为RS / SPC阵列。软输入软输出（SISO）通道检测器检测RS / SPC编码位，并在这些位上提供软（可靠性）信息。组合的RS和SPC误差校正块提供恢复的用户输出。迭代软输入解码算法结合了RS和SPC误差校正。

9. 发明授权

US06757122B1 Method and decoding apparatus using linear code with parity check matrices composed from circulants 有权
标题翻译：使用线性码的方法和解码装置与由循环组成的奇偶校验矩阵
公开(公告)号：US06757122B1
公开(公告)日：2004-06-29
申请号：US10160699
申请日：2002-05-30
申请人： Alexander Vasilievich Kuznetsov , Bane Vasic , Erozan Mehmet Kurtas
发明人： Alexander Vasilievich Kuznetsov , Bane Vasic , Erozan Mehmet Kurtas
IPC分类号： G11B509
CPC分类号： H03M13/2906 , H03M7/46 , H03M13/1131 , H03M13/1134 , H03M13/1137 , H03M13/116 , H03M13/15 , H03M13/1515
摘要： The present invention provides a novel method and apparatus for decoding digital information transmitted through the communication channel or recorded on a recording medium. The method and apparatus are preferably applied in the systems where data is encoded using regular LDPC codes with parity check matrices composed from circulants (a matrix is called a circulant if all its column or row are cyclic shifts each other).
摘要翻译：本发明提供一种用于解码通过通信信道发送或记录在记录介质上的数字信息的新颖方法和装置。该方法和装置优选地应用于使用具有由循环组成的奇偶校验矩阵的常规LDPC码来编码数据的系统（如果矩阵被称为循环，如果其所有列或行都是循环移位）。

10. 发明授权

US06707624B2 Method and apparatus for preprocessing low frequencies in perpendicular recording 有权
标题翻译：用于在垂直记录中预处理低频的方法和装置
公开(公告)号：US06707624B2
公开(公告)日：2004-03-16
申请号：US10116193
申请日：2002-04-04
申请人： Mehmet Faith Erden , Erozan Mehmet Kurtas
发明人： Mehmet Faith Erden , Erozan Mehmet Kurtas
IPC分类号： G11B2736
CPC分类号： G11B20/10009 , G11B27/36 , G11B2220/20
摘要： A method of preprocessing low frequency components of a perpendicular read-back signal in a data storage system in order to reduce low frequency noise includes introducing a dominant known perturbation, to the perpendicular read-back signal, which masks the effects of other low frequency noise sources and leaves the read-back signal with one dominant low frequency noise component. The method then further includes removing the dominant known perturbation from the read-back signal to recover low frequency portions of the read-back signal in order to determine values of bits read from a storage medium. A perpendicular recording data storage system configured to implement the method is also disclosed.
摘要翻译：为了降低低频噪声，在数据存储系统中预处理垂直回读信号的低频分量的方法包括将主要的已知扰动引入垂直回读信号，其掩蔽其他低频噪声的影响源和留下具有一个主要低频噪声分量的回读信号。该方法然后还包括从回读信号中去除主要的已知扰动，以恢复回读信号的低频部分，以便确定从存储介质读取的位的值。还公开了一种被配置为实现该方法的垂直记录数据存储系统。

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