专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09786316B2 Multi-track data readers with iterative inter-track interference cancellation 有权
公开(公告)号：US09786316B2
公开(公告)日：2017-10-10
申请号：US14957349
申请日：2015-12-02
申请人： Avago Technologies General IP (Singapore) Pte. Ltd.
发明人： George Mathew , Jongseung Park , Richard Rauschmayer , Bruce A. Wilson
IPC分类号： G11B5/035 , G11B20/10
CPC分类号： G11B20/10212 , G11B5/035 , G11B20/10009 , G11B20/10046 , G11B20/10268 , G11B20/10481
摘要： An apparatus for two-dimensional magnetic recording includes an array reader comprising a number of read sensors configured to read data from at least one track on a storage medium, a number of two-dimensional equalizer circuits each comprising inputs for receiving signals derived from each of the read sensors, each comprising an equalized output, and a number of iterative inter-track interference cancellation circuits, each operable to cancel inter-track interference in a different one of the equalized outputs from the two-dimensional equalizer circuits.

2. 发明申请

US20170162224A1 Multi-Track Data Processor With Iterative Inter-Track Interference Cancellation 有权
公开(公告)号：US20170162224A1
公开(公告)日：2017-06-08
申请号：US14957349
申请日：2015-12-02
申请人： Avago Technologies General IP (Singapore) Pte. Ltd.
发明人： George Mathew , Jongseung Park , Richard Rauschmayer , Bruce A. Wilson
IPC分类号： G11B20/10
CPC分类号： G11B20/10212 , G11B5/035 , G11B20/10009 , G11B20/10046 , G11B20/10268 , G11B20/10481
摘要： An apparatus for two-dimensional magnetic recording includes an array reader comprising a number of read sensors configured to read data from at least one track on a storage medium, a number of two-dimensional equalizer circuits each comprising inputs for receiving signals derived from each of the read sensors, each comprising an equalized output, and a number of iterative inter-track interference cancellation circuits, each operable to cancel inter-track interference in a different one of the equalized outputs from the two-dimensional equalizer circuits.

3. 发明授权

US09542959B2 Protecting information written to recording medium 有权
标题翻译：保护写入记录介质的信息
公开(公告)号：US09542959B2
公开(公告)日：2017-01-10
申请号：US14262739
申请日：2014-04-26
申请人： SEAGATE TECHNOLOGY INTERNATIONAL
发明人： Seong-yong Yoon , Tae-won Kim
IPC分类号： G11B5/02 , G11B20/10 , G11B20/12 , G11B19/04 , G11B20/00 , G11B5/00
CPC分类号： G11B5/02 , G11B19/04 , G11B20/00086 , G11B20/10212 , G11B20/1217 , G11B2005/001 , G11B2020/1238 , G11B2220/2516
摘要： A data storage device can include a recording medium; a controller unit to generate control signals in response to write information and write commands; and a transducer section coupled to receive the controls signals, and in response, write the write information into the recording medium and form a data protection pattern in the recording medium adjacent to the write information.
摘要翻译：数据存储装置可以包括记录介质; 控制器单元，用于响应于写入信息和写入命令产生控制信号; 以及耦合以接收控制信号的传感器部分，并且作为响应，将写入信息写入记录介质中，并在与写入信息相邻的记录介质中形成数据保护模式。

4. 发明申请

US20160125905A1 APPARATUS AND METHOD FOR DETECTING A SYMBOL ON A TWO-DIMENSIONAL STORAGE MEDIUM 审中-公开
标题翻译：用于检测二维存储介质上的符号的装置和方法
公开(公告)号：US20160125905A1
公开(公告)日：2016-05-05
申请号：US14929189
申请日：2015-10-30
申请人： THOMSON LICENSING
发明人： Xiaoming CHEN , Ingo Huetter , Meinolf BLAWAT , Klaus GAEDKE
IPC分类号： G11B7/003 , G11B20/10
CPC分类号： G11B7/003 , G06K7/10 , G06K7/14 , G06K7/1404 , G06K7/1408 , G06K7/1417 , G06N7/005 , G11B7/005 , G11B20/10212 , G11B20/10287
摘要： The invention relates to an apparatus and method for detecting a symbol from a set of readout values from a local neighborhood of a two-dimensional storage medium, comprising: evaluating a joint probability distribution for a given observation and a complete set of data patterns in the local neighborhood; and choosing as detection output a weighted average of the center values of the data patterns, using the values of the associated joint probability distribution as weights; wherein the joint probability distribution is a multi variant Gaussian probability distribution which employs vectorial observations, vectorial averages, and covariance matrixes.
摘要翻译：本发明涉及一种用于从二维存储介质的局部邻域的一组读出值中检测符号的装置和方法，包括：评估给定观测的联合概率分布和一组完整的数据模式当地邻里; 并使用相关的联合概率分布的值作为权重，选择数据模式的中心值的加权平均值作为检测输出; 其中联合概率分布是采用矢量观测，矢量平均和协方差矩阵的多变量高斯概率分布。

5. 发明授权

US09037955B1 Viterbi decoder method and apparatus with RI detector in servo channel 有权
标题翻译：维特比解码器方法和装置，其具有RI检测器在伺服信道中
公开(公告)号：US09037955B1
公开(公告)日：2015-05-19
申请号：US14244557
申请日：2014-04-03
申请人： MARVELL INTERNATIONAL LTD.
发明人： Zaihe Yu , Michael Madden
IPC分类号： G11B20/10 , H03M13/41 , H03M13/00 , G11B20/20
CPC分类号： G11B20/10212 , G11B20/10175 , G11B20/10222 , G11B20/10277 , G11B20/10398 , G11B20/20 , H03M13/3961 , H03M13/41 , H03M13/6343
摘要： Apparatus and methods are disclosed for decoding data stored on a data storage medium. A disclosed decoding method and decoder include a radial incoherence (RI) detector that increases the probability of detecting RI and improves the decoding performance in terms of the bit error rate of the decoded signal. RI is detected by comparing an input signal to the decoder against a RI threshold value and generating a RI-type signal. The RI detector may include a filter for filtering out noise and error in the RI-type signal, an adaptive threshold unit that adjusts the RI threshold value based upon the RI-type signal, a transition-based threshold unit that adjusts the RI threshold value based upon each transition in the input signal, or a path-based threshold unit that adjusts the RI threshold value based upon a best surviving path corresponding to the input signal, in combination or alone.
摘要翻译：公开了用于对存储在数据存储介质上的数据进行解码的装置和方法。所公开的解码方法和解码器包括径向不相干（RI）检测器，其增加检测RI的概率，并且根据解码信号的误码率提高解码性能。通过将输入信号与解码器相对于RI阈值进行比较并产生RI型信号来检测RI。 RI检测器可以包括用于滤除RI型信号中的噪声和误差的滤波器，基于RI型信号调整RI阈值的自适应阈值单元，调整RI阈值的基于过渡的阈值单元基于输入信号中的每个转换，或者基于路径的阈值单元，其组合地或组合地基于基于与输入信号对应的最佳幸存路径来调整RI阈值。

6. 发明授权

US08964322B2 Size adjustable inter-track interference cancellation 有权
标题翻译：尺寸可调的轨道间干扰消除
公开(公告)号：US08964322B2
公开(公告)日：2015-02-24
申请号：US13942163
申请日：2013-07-15
申请人： Seagate Technology LLC
发明人： Seungyoul Jeong , Joowon Cho , Donghyuk Park , Eunyeong Hong
IPC分类号： G11B5/09 , G11B20/10
CPC分类号： G11B20/10212 , G11B20/10268
摘要： Technologies are described herein for cancelling inter-track interference in a storage device utilizing size-adjustable segments. Data is read from one or more sectors on a data track adjacent to a target sector on a target track of a recording medium of the storage device. The target sector is divided into a plurality of segments and data is decoded from the read signal read from each of the segments individually using corresponding data from the one or more sectors of the adjacent track and independent inter-track interference factor values.
摘要翻译：这里描述了用于消除利用尺寸可调节段的存储装置中的轨道间干扰的技术。在与存储装置的记录介质的目标轨道上的目标扇区相邻的数据轨道上的一个或多个扇区读取数据。目标扇区被分成多个段，并且数据从从每个段读取的读取信号单独地使用来自相邻轨道的一个或多个扇区的相应数据和独立的轨道间干扰因子值进行解码。

7. 发明申请

US20150015984A1 Storage Media Inter-Track interference Cancellation 审中-公开
标题翻译：存储介质间跟踪干扰消除
公开(公告)号：US20150015984A1
公开(公告)日：2015-01-15
申请号：US14500226
申请日：2014-09-29
申请人： LSI Corporation
发明人： Ming Jin , Erich F. Haratsch , George Mathew , Jongseung Park , Timothy W. Swatosh , Timothy B. Lund , Carl E. Forham
IPC分类号： G11B5/09 , G11B20/10
CPC分类号： G11B5/09 , G11B5/012 , G11B19/045 , G11B20/10046 , G11B20/10212 , G11B20/10462 , G11B20/1217 , G11B20/1423 , G11B2020/10759 , G11B2020/1232 , G11B2020/1298 , G11B2020/183 , G11B2020/185 , G11B2020/1856 , G11B2220/2516
摘要： Described embodiments provide a method of cancelling inter-track interference (ITI) from one or more sectors read from a desired track of a storage medium. A read channel reads sectors in a desired track of the storage medium. A decoder of the read channel decodes the read sectors, and if the read sectors are incorrectly recovered from the storage medium, selected sectors of a first adjacent track and a second adjacent track are read. An ITI canceller of the read channel estimates ITI in the read sectors of the desired track corresponding to the selected sectors of each adjacent track and subtracts the estimated ITI of each adjacent track from the data for the sectors of the desired track, providing updated sector data. The ITI cancelled data is replayed to the decoder, Which decodes the ITT cancelled data and provides the decoded ITI cancelled data as output of the read channel.
摘要翻译：所描述的实施例提供了从存储介质的期望轨迹读取的一个或多个扇区消除轨道间干扰（ITI）的方法。读通道读取存储介质的期望轨道中的扇区。读通道的解码器解码读扇区，并且如果从存储介质中错误地恢复读扇区，则读取第一相邻轨道和第二相邻轨道的选定扇区。读通道的ITI消除器估计对应于每个相邻磁道的所选扇区的期望磁道的读扇区中的ITI，并从期望磁道的扇区的数据中减去每个相邻磁道的估计ITI，从而提供更新的扇区数据。 ITI取消的数据被重播到解码器，解码器解码ITT取消的数据，并将解码的ITI取消的数据作为读取通道的输出。

8. 发明授权

US08879182B2 Storage media inter-track interference cancellation 有权
标题翻译：存储介质轨道间干扰消除
公开(公告)号：US08879182B2
公开(公告)日：2014-11-04
申请号：US13591937
申请日：2012-08-22
申请人： Erich Franz Haratsch , George Mathew , Ming Jin , Jongseung Park , Timothy W. Swatosh , Timothy B. Lund , Carl E. Forhan
发明人： Erich Franz Haratsch , George Mathew , Ming Jin , Jongseung Park , Timothy W. Swatosh , Timothy B. Lund , Carl E. Forhan
IPC分类号： G11B5/09 , G11B20/10 , G11B19/04 , G11B5/012 , G11B20/14 , G11B20/12 , G11B20/18
CPC分类号： G11B5/09 , G11B5/012 , G11B19/045 , G11B20/10046 , G11B20/10212 , G11B20/10462 , G11B20/1217 , G11B20/1423 , G11B2020/10759 , G11B2020/1232 , G11B2020/1298 , G11B2020/183 , G11B2020/185 , G11B2020/1856 , G11B2220/2516
摘要： Described embodiments provide a method of cancelling inter-track interference (ITI) from one or more sectors read from a desired track of a storage medium. A road channel reads sectors in a desired track of the storage medium. A decoder of the read channel decodes the read sectors, and if the read sectors are incorrectly recovered from the storage medium, selected sectors of a first adjacent track and a second adjacent track are read. An ITI canceller of the read channel estimates ITI in the read sectors of the desired track corresponding to the selected sectors of each adjacent track and subtracts the estimated ITI of each adjacent track from the data for the sectors of the desired track, providing updated sector data. The ITI cancelled data is replayed to the decoder, which decodes the ITI cancelled data and provides the decoded ITI cancelled data as output of the read channel.
摘要翻译：所描述的实施例提供了从存储介质的期望轨迹读取的一个或多个扇区消除轨道间干扰（ITI）的方法。道路通道读取存储介质的期望轨道中的扇区。读通道的解码器解码读扇区，并且如果从存储介质中错误地恢复读扇区，则读取第一相邻轨道和第二相邻轨道的选定扇区。读通道的ITI消除器估计对应于每个相邻磁道的所选扇区的期望磁道的读扇区中的ITI，并从期望磁道的扇区的数据中减去每个相邻磁道的估计ITI，从而提供更新的扇区数据。 ITI取消的数据被重播到解码器，解码器解码ITI取消的数据，并将解码的ITI取消数据作为读通道的输出。

9. 发明授权

US08854757B2 Systems and methods for old data inter-track interference compensation 有权
标题翻译：旧数据跟踪干扰补偿的系统和方法
公开(公告)号：US08854757B2
公开(公告)日：2014-10-07
申请号：US13705116
申请日：2012-12-04
申请人： LSI Corporation
发明人： George Mathew , Jongseung Park , Erich F. Haratsch , Bruce A. Wilson
IPC分类号： G11B5/09 , G11B20/10
CPC分类号： G11B20/10212 , G11B19/045
摘要： Systems and methods for data processing, and more particularly to estimating or calculating interference between tracks on a storage medium.
摘要翻译：用于数据处理的系统和方法，更具体地涉及估计或计算存储介质上的轨道之间的干扰。

10. 发明授权

US08743671B2 Method for adjusting recording condition, optical disc device, and information recording method 有权
标题翻译：调节记录条件的方法，光盘装置和信息记录方法
公开(公告)号：US08743671B2
公开(公告)日：2014-06-03
申请号：US13856149
申请日：2013-04-03
申请人： Hitachi Consumer Electronics Co. Ltd.
发明人： Takahiro Kurokawa , Hiroyuki Minemura
IPC分类号： G09B7/00
CPC分类号： G11B7/00456 , G11B7/0062 , G11B7/126 , G11B20/10009 , G11B20/10212 , G11B20/10277 , G11B20/10407 , G11B2220/2541
摘要： A recording adjustment method capable of controlling an edge position of a mark with high accuracy. Based on an acquired read-out signal waveform, a starting position of a last pulse is adjusted such that a so-called L-SEAT shift value for an end edge of the mark becomes minimum.
摘要翻译：一种能够高精度地控制标记的边缘位置的记录调整方法。基于获取的读出信号波形，调整最后脉冲的开始位置，使得标记的结束边缘的所谓的L-SEAT偏移值变为最小。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式