-
公开(公告)号：US08743499B2
公开(公告)日：2014-06-03
申请号：US13527490
申请日：2012-06-19
CPC分类号： G11B5/00817 , G11B5/09 , G11B20/10046 , G11B20/10074 , G11B20/10287 , G11B2220/90
摘要： In one embodiment, a system includes a tape channel for reading data from a magnetic tape medium to produce a signal, a bank of noise whitening filters positioned subsequent to the tape channel adapted for receiving the signal, the bank of noise whitening filters being adapted for minimizing variance of noise affecting the signal at an output of the bank of noise whitening filters, wherein each noise whitening filter in the bank of noise whitening filters is dependent on a different possible data pattern, a soft DMAX detector adapted for calculating first soft information, dependent on the different possible data patterns, about each bit of the signal from the bank of noise whitening filters, and sending the first soft information to a soft decoder adapted for calculating second soft information about each bit of the signal and sending the second soft information to the soft DMAX detector.
摘要翻译： 在一个实施例中，系统包括用于从磁带介质读取数据以产生信号的带通道，位于适于接收信号的磁带通道之后的一组噪声白化滤波器，噪声增白滤波器组适于 最小化影响噪声白化滤波器组的输出处的信号的噪声的方差，其中噪声白化滤波器组中的每个噪声白化滤波器取决于不同的可能数据模式，适于计算第一软信息的软DMAX检测器， 取决于不同的可能数据模式，关于噪声白化滤波器组的信号的每个位，并且将第一软信息发送到软解码器，该软解码器适于计算关于信号的每个位的第二软信息，并且发送第二软信息 到软DMAX检测器。
-
公开(公告)号：US08797670B2
公开(公告)日：2014-08-05
申请号：US13527508
申请日：2012-06-19
CPC分类号： G11B20/10046 , G11B5/008 , G11B20/10074 , G11B20/10287 , G11B2020/185 , G11B2020/1853 , G11B2220/90
摘要： In accordance with one embodiment, a data storage system includes a tape channel for reading precoded data from a magnetic tape medium to produce a signal, a soft detector adapted for calculating first soft information about each bit of the signal and sending the first soft information to a soft decoder, and the soft decoder positioned subsequent to the soft detector, the soft decoder being adapted for calculating second soft information about each bit of the signal and sending the second soft information to the soft detector, wherein the precoded data includes a characteristic of being passed through at least one precoder prior to being written to the magnetic tape medium, and wherein the soft detector provides automatic compensation for the precoded data. Other systems, methods, and computer program products for reading data using an adaptive soft-output detector are described according to more embodiments.
摘要翻译： 根据一个实施例，数据存储系统包括用于从磁带介质读取预编码数据以产生信号的磁带通道，软检测器，适于计算关于信号的每个位的第一软信息，并将第一软信息发送到 软解码器和位于软检测器之后的软解码器，软解码器适于计算关于信号的每个位的第二软信息，并将第二软信息发送给软检测器，其中预编码数据包括 在写入磁带介质之前通过至少一个预编码器，并且其中软检测器为预编码数据提供自动补偿。 根据更多实施例描述了使用自适应软输出检测器读取数据的其它系统，方法和计算机程序产品。
-
公开(公告)号：US08743498B2
公开(公告)日：2014-06-03
申请号：US13527473
申请日：2012-06-19
CPC分类号： G11B20/10046 , G11B5/008 , G11B20/10268
摘要： In one embodiment, a data storage system includes a tape channel for reading data from a magnetic tape medium to produce a signal, a noise whitening filter positioned subsequent to the tape channel adapted for receiving the signal, wherein the noise whitening filter is adapted for minimizing variance of its output signal, a soft detector adapted for receiving output from the noise whitening filter, the soft detector adapted for calculating first soft information about each bit of the signal and sending the first soft information to a soft decoder, and the soft decoder positioned subsequent to the soft detector, the soft decoder being adapted for calculating second soft information about each bit of the signal and sending the second soft information to the soft detector. Other systems, methods, and computer program products are described according to more embodiments.
摘要翻译： 在一个实施例中，数据存储系统包括用于从磁带介质读取数据以产生信号的磁带通道，位于适于接收信号的磁带通道之后的噪声白化滤波器，其中噪声增白滤波器适于最小化 其输出信号的方差，适于接收来自噪声白化滤波器的输出的软检测器，软检测器适于计算关于信号的每个位的第一软信息，并将第一软信息发送到软解码器，并且软解码器定位 在软检测器之后，软解码器适于计算关于信号的每个位的第二软信息，并将第二软信息发送到软检测器。 根据更多实施例描述其它系统，方法和计算机程序产品。
-
公开(公告)号：US20130335848A1
公开(公告)日：2013-12-19
申请号：US13527473
申请日：2012-06-19
IPC分类号： G11B5/09
CPC分类号： G11B20/10046 , G11B5/008 , G11B20/10268
摘要： In one embodiment, a data storage system includes a tape channel for reading data from a magnetic tape medium to produce a signal, a noise whitening filter positioned subsequent to the tape channel adapted for receiving the signal, wherein the noise whitening filter is adapted for minimizing variance of its output signal, a soft detector adapted for receiving output from the noise whitening filter, the soft detector adapted for calculating first soft information about each bit of the signal and sending the first soft information to a soft decoder, and the soft decoder positioned subsequent to the soft detector, the soft decoder being adapted for calculating second soft information about each bit of the signal and sending the second soft information to the soft detector. Other systems, methods, and computer program products are described according to more embodiments.
摘要翻译： 在一个实施例中，数据存储系统包括用于从磁带介质读取数据以产生信号的磁带通道，位于适于接收信号的磁带通道之后的噪声白化滤波器，其中噪声增白滤波器适于最小化 其输出信号的方差，适于接收来自噪声白化滤波器的输出的软检测器，软检测器适于计算关于信号的每个位的第一软信息，并将第一软信息发送到软解码器，并且软解码器定位 在软检测器之后，软解码器适于计算关于信号的每个位的第二软信息，并将第二软信息发送到软检测器。 根据更多实施例描述其它系统，方法和计算机程序产品。
-
公开(公告)号：US20130335845A1
公开(公告)日：2013-12-19
申请号：US13527501
申请日：2012-06-19
CPC分类号： G11B20/10046 , G11B5/008 , G11B20/10074 , G11B20/10287 , G11B2020/185 , G11B2020/1853 , G11B2220/956
摘要： In one embodiment, a data storage system includes a tape channel for reading data from a tape to produce a signal, an adaptive noise whitening filter adapted for receiving the signal, the noise whitening filter being adapted for minimizing variance of noise affecting the signal output from the noise whitening filter, a soft DMAX detector adapted for receiving the signal from the noise whitening filter, the soft detector adapted for calculating first soft information about each bit of the signal and sending the first soft information to a soft decoder, and the soft decoder positioned subsequent to the soft detector, the soft decoder being adapted for calculating second soft information about each bit of the signal and sending the second soft information to the soft DMAX detector, wherein one or more noise whitening coefficients used in the noise whitening filter are updated using a noise whitening filter coefficient updater.
摘要翻译： 在一个实施例中，数据存储系统包括用于从磁带读取数据以产生信号的磁带通道，适于接收该信号的自适应噪声白化滤波器，所述噪声白化滤波器适于最小化影响从 噪声白化滤波器，适于接收来自噪声白化滤波器的信号的软DMAX检测器，软检测器适于计算关于信号的每个位的第一软信息并将第一软信息发送到软解码器，以及软解码器 定位在软检测器之后，软解码器适于计算关于信号的每个位的第二软信息，并将第二软信息发送到软DMAX检测器，其中在噪声白化滤波器中使用的一个或多个噪声白化系数被更新 使用噪声美白滤波系数更新器。
-
公开(公告)号：US08743500B2
公开(公告)日：2014-06-03
申请号：US13527501
申请日：2012-06-19
CPC分类号： G11B20/10046 , G11B5/008 , G11B20/10074 , G11B20/10287 , G11B2020/185 , G11B2020/1853 , G11B2220/956
摘要： In one embodiment, a data storage system includes a tape channel for reading data from a tape to produce a signal, an adaptive noise whitening filter adapted for receiving the signal, the noise whitening filter being adapted for minimizing variance of noise affecting the signal output from the noise whitening filter, a soft DMAX detector adapted for receiving the signal from the noise whitening filter, the soft detector adapted for calculating first soft information about each bit of the signal and sending the first soft information to a soft decoder, and the soft decoder positioned subsequent to the soft detector, the soft decoder being adapted for calculating second soft information about each bit of the signal and sending the second soft information to the soft DMAX detector, wherein one or more noise whitening coefficients used in the noise whitening filter are updated using a noise whitening filter coefficient updater.
摘要翻译： 在一个实施例中，数据存储系统包括用于从磁带读取数据以产生信号的磁带通道，适于接收该信号的自适应噪声白化滤波器，所述噪声白化滤波器适于最小化影响从 噪声白化滤波器，适于接收来自噪声白化滤波器的信号的软DMAX检测器，软检测器适于计算关于信号的每个位的第一软信息并将第一软信息发送到软解码器，以及软解码器 定位在软检测器之后，软解码器适于计算关于信号的每个位的第二软信息，并将第二软信息发送到软DMAX检测器，其中在噪声白化滤波器中使用的一个或多个噪声白化系数被更新 使用噪声美白滤波器系数更新器。
-
公开(公告)号：US20130335849A1
公开(公告)日：2013-12-19
申请号：US13527490
申请日：2012-06-19
IPC分类号： G11B5/09
CPC分类号： G11B5/00817 , G11B5/09 , G11B20/10046 , G11B20/10074 , G11B20/10287 , G11B2220/90
摘要： In one embodiment, a system includes a tape channel for reading data from a magnetic tape medium to produce a signal, a bank of noise whitening filters positioned subsequent to the tape channel adapted for receiving the signal, the bank of noise whitening filters being adapted for minimizing variance of noise affecting the signal at an output of the bank of noise whitening filters, wherein each noise whitening filter in the bank of noise whitening filters is dependent on a different possible data pattern, a soft DMAX detector adapted for calculating first soft information, dependent on the different possible data patterns, about each bit of the signal from the bank of noise whitening filters, and sending the first soft information to a soft decoder adapted for calculating second soft information about each bit of the signal and sending the second soft information to the soft DMAX detector.
摘要翻译： 在一个实施例中，系统包括用于从磁带介质读取数据以产生信号的带通道，位于适于接收信号的磁带通道之后的一组噪声白化滤波器，噪声增白滤波器组适于 最小化影响噪声白化滤波器组的输出处的信号的噪声的方差，其中噪声白化滤波器组中的每个噪声白化滤波器取决于不同的可能数据模式，适于计算第一软信息的软DMAX检测器， 取决于不同的可能数据模式，关于噪声白化滤波器组的信号的每个位，并且将第一软信息发送到软解码器，该软解码器适于计算关于信号的每个位的第二软信息，并且发送第二软信息 到软DMAX检测器。
-
公开(公告)号：US20130335846A1
公开(公告)日：2013-12-19
申请号：US13527508
申请日：2012-06-19
CPC分类号： G11B20/10046 , G11B5/008 , G11B20/10074 , G11B20/10287 , G11B2020/185 , G11B2020/1853 , G11B2220/90
摘要： In accordance with one embodiment, a data storage system includes a tape channel for reading precoded data from a magnetic tape medium to produce a signal, a soft detector adapted for calculating first soft information about each bit of the signal and sending the first soft information to a soft decoder, and the soft decoder positioned subsequent to the soft detector, the soft decoder being adapted for calculating second soft information about each bit of the signal and sending the second soft information to the soft detector, wherein the precoded data includes a characteristic of being passed through at least one precoder prior to being written to the magnetic tape medium, and wherein the soft detector provides automatic compensation for the precoded data. Other systems, methods, and computer program products for reading data using an adaptive soft-output detector are described according to more embodiments.
摘要翻译： 根据一个实施例，数据存储系统包括用于从磁带介质读取预编码数据以产生信号的磁带通道，软检测器，适于计算关于信号的每个位的第一软信息，并将第一软信息发送到 软解码器和位于软检测器之后的软解码器，软解码器适于计算关于信号的每个位的第二软信息，并将第二软信息发送给软检测器，其中预编码数据包括 在写入磁带介质之前通过至少一个预编码器，并且其中软检测器为预编码数据提供自动补偿。 根据更多实施例描述了使用自适应软输出检测器读取数据的其它系统，方法和计算机程序产品。
-
9.发明授权Data format using an efficient reverse concatenated modulation code for magnetic tape recording 有权数据格式使用有效的反向级联调制码进行磁带记录公开(公告)号：US09190076B2
公开(公告)日：2015-11-17
申请号：US13483004
申请日：2012-05-29
CPC分类号： G11B5/00813 , G11B20/1833 , G11B2020/1836 , G11B2020/185 , G11B2020/1853 , G11B2220/90 , H03M5/145 , H03M13/1102 , H03M13/13 , H03M13/1515 , H03M13/2906
摘要： In one embodiment, a tape drive system includes a write channel for writing data to a magnetic tape, the write channel utilizing a rate-(232/234) reverse concatenated modulation code. The write channel includes logic adapted for receiving a data stream comprising one or more data sets, logic adapted for separating each data set into a plurality of sub data sets, logic adapted for encoding each sub data set with a C2 encoding, logic adapted for encoding each C2-encoded sub data set with a modulation code, logic adapted for encoding each modulated sub data set with a C1 encoding, and logic adapted for simultaneously writing the encoded modulated sub data sets to data tracks of the magnetic tape. Other systems for writing data to a magnetic tape utilizing a rate-(232/234) reverse concatenated modulation code are described according to various other embodiments.
摘要翻译： 在一个实施例中，磁带驱动器系统包括用于将数据写入磁带的写入通道，该写入通道利用速率（232/234）反向级联调制码。 写通道包括适于接收包括一个或多个数据组的数据流的逻辑，适用于将每个数据集分成多个子数据集的逻辑，适用于使用C2编码对每个子数据集进行编码的逻辑，适用于编码的逻辑 具有调制码的每个C2编码的子数据集，适用于用C1编码对每个经调制的子数据集进行编码的逻辑，以及用于将编码的已调制子数据集同时写入到磁带的数据轨道的逻辑。 根据各种其他实施例，描述使用速率（232/234）反向级联调制码将数据写入磁带的其它系统。
-
10.发明申请PARTIAL REVERSE CONCATENATION FOR DATA STORAGE DEVICES USING COMPOSITE CODES 有权使用复合代码的数据存储设备的部分反向定义公开(公告)号：US20130326306A1
公开(公告)日：2013-12-05
申请号：US13483015
申请日：2012-05-29
CPC分类号： H03M13/2906 , G06F3/0619 , G06F3/064 , G06F3/0674 , G06F3/0677 , G06F3/0682 , G06F11/1076 , G11B20/1426 , G11B20/18 , G11B20/1833 , G11B2020/1836 , G11B2020/1853 , G11B2220/2516 , G11B2220/2537 , G11B2220/956 , H03M13/1102 , H03M13/1515 , H03M13/2909 , H03M13/6325 , H03M13/6343
摘要： In one embodiment, a data storage system includes a write channel for writing data to a storage medium, the write channel configured to utilize a partial reverse concatenated modulation code. The write channel includes logic adapted for encoding data sets using a C2 encoding scheme, logic adapted for adding a header to each subunit of the data sets, logic adapted for encoding the headers of the data sets with a first modulation encoding scheme, logic adapted for encoding data portions of the data sets with a second modulation encoding scheme, logic adapted for encoding portions of the one or more C2-encoded data sets using a C1 encoding scheme, logic adapted for combining the C1-encoded portions with the modulation-encoded headers of the C2-encoded data sets using a multiplexer, and logic adapted for writing the one or more combined C1- and C2-encoded data sets to data tracks.
摘要翻译： 在一个实施例中，数据存储系统包括用于将数据写入存储介质的写通道，该写通道被配置为利用部分反向级联调制码。 所述写通道包括适于使用C2编码方案对数据集进行编码的逻辑，适用于将数据组的每个子单元加上标题的逻辑，适用于利用第一调制编码方案对所述数据组的报头进行编码的逻辑， 使用第二调制编码方案对数据集的数据部分进行编码，适用于使用C1编码方案对一个或多个C2编码数据集的部分进行编码的逻辑，适用于将C1编码部分与调制编码报头 使用多路复用器的C2编码数据集，以及适于将一个或多个组合的C 1和C 2编码数据集写入数据磁道的逻辑。
-
-
-
-
-
-
-
-
-
搜索结果
105 条记录 (耗时 0.029 秒)