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1. 发明公开

EP4411734A1 MAGNETIC TAPE, MAGNETIC TAPE CARTRIDGE, SERVO PATTERN RECORDING DEVICE, MAGNETIC TAPE DRIVE, MAGNETIC TAPE SYSTEM, DETECTION DEVICE, INSPECTION DEVICE, SERVO PATTERN RECORDING METHOD, MANUFACTURING METHOD FOR MAGNETIC TAPE, DETECTION METHOD, AND INSPECTION METHOD 审中-公开
公开(公告)号：EP4411734A1
公开(公告)日：2024-08-07
申请号：EP22875447.9
申请日：2022-05-20
申请人： FUJIFILM Corporation
发明人： NAKAO, Toru , KANEKO, Tetsuya , AKANO, Yoichi
IPC分类号： G11B5/09 , G11B5/265 , G11B5/29 , G11B5/584 , G11B21/10 , G11B33/12 , G11B20/18 , G11B23/107 , G11B23/113 , G11B15/43 , G11B15/62
CPC分类号： G11B20/18 , G11B23/113 , G11B5/584 , G11B5/265 , G11B5/29 , G11B23/107 , G11B5/09 , G11B33/12 , G11B21/10 , G11B15/62 , G11B15/43
摘要： A plurality of servo patterns are recorded in a magnetic tape along a longitudinal direction. The servo pattern is at least one linear magnetization region pair. The linear magnetization region pair includes a first linear magnetization region, which is linearly magnetized, and a second linear magnetization region, which is linearly magnetized. The first linear magnetization region and the second linear magnetization region are inclined in opposite directions with respect to a first imaginary straight line along a width direction of the magnetic tape. The first linear magnetization region has a steeper inclined angle with respect to the first imaginary straight line than the second linear magnetization region.

2. 发明公开

EP3690883A1 HEALTH MANAGEMENT FOR MAGNETIC STORAGE MEDIA 审中-实审
公开(公告)号：EP3690883A1
公开(公告)日：2020-08-05
申请号：EP20154549.8
申请日：2020-01-30
申请人： Marvell Asia Pte, Ltd.
发明人： NANGARE, Nitin
IPC分类号： G11B27/36 , G11B20/18 , G11B5/012 , G06F3/06
摘要： The present disclosure describes aspects of health management for magnetic storage media. In some aspects, a media health manager determines, with a read channel, read metrics for a sector of magnetic storage media that resides in a zone of magnetic storage media. The media health manager accesses read metrics of the zone and updates the read metrics of the zone based on the read metrics determined for the sector to provide updated read metrics for the zone of magnetic storage media. A health score for the zone of magnetic storage media is then determined with a neural network based on the updated read metrics of the zone of magnetic storage media. By so doing, gradual wear of the magnetic storage media may be predicted using the health score, enabling replacement of a magnetic storage media device before failure to improve reliability or availability of data stored to the device.

3. 发明授权

EP1803118B1 RECORDING APPARATUS AND METHOD 有权转让
公开(公告)号：EP1803118B1
公开(公告)日：2019-07-03
申请号：EP05856503.7
申请日：2005-10-10
申请人： Samsung Electronics Co., Ltd.
发明人： HWANG, Sung-Hee 150-1401 Jugong 1-danji Apt. , LEE, Kyung-Geun 229-1006 Sibeomdanji Woosung Apt.
IPC分类号： G11B7/007 , G11B20/18

4. 发明公开

EP3467829A1 DISC-LIKE RECORDING MEDIUM, RECORDING DEVICE, RECORDING METHOD, REPRODUCTION DEVICE, AND REPRODUCTION METHOD 有权转让
公开(公告)号：EP3467829A1
公开(公告)日：2019-04-10
申请号：EP17802595.3
申请日：2017-05-12
申请人： Sony Corporation
发明人： HIGASHINO, Satoru
IPC分类号： G11B20/12 , G11B7/007 , G11B20/10 , G11B20/18
摘要： The present technology relates to a disk-type recording medium, a recording apparatus, a recording method, a reproducing apparatus, and a reproducing method, which are capable of recording, for example, data with high density and reproducing data recorded with high density robustly.
In the disk-type recording medium, synchronization patterns for synchronization are recorded in two adjacent tracks with a shift in a track direction so that positions in the track direction do not overlap. The present technology can be applied to, for example, optical discs, other disk-type recording mediums, and the like.

5. 发明授权

EP2063428B1 Content data recording apparatus and method 有权
公开(公告)号：EP2063428B1
公开(公告)日：2018-12-26
申请号：EP08013665.8
申请日：2008-07-30
申请人： Kabushiki Kaisha Toshiba
发明人： Aoki, Toshiaki, c/o Intellectual Property Division
IPC分类号： G11B20/18 , G06F11/10
CPC分类号： G11B20/1803 , G06F11/1068 , G11B20/1879 , G11B20/1883 , G11B2020/183
摘要： A content data recording apparatus includes a code addition unit (20) adding an error correction code to an input content data, a data storing unit (30, 40, 50, 70) temporarily storing the content data, and outputting it, a plurality of nonvolatile memories (81) that enable writing/reading of the content data, a generator (82) generating a write address and a read address, a read buffer (90) temporarily storing the read content data, and outputting it, an error correction unit (100) correcting an error of the content data based on the error correction code, and giving correction impossible notification when the error is not corrected by the error correction code, and a controller (60) carrying out a read control for reading content data, and carrying out a first rewrite control for controlling the data storing unit so that the data storing unit again outputs content data, and writing the content data again.

6. 发明授权

EP2843662B1 Systems and methods for multi-level encoding and decoding 有权转让
公开(公告)号：EP2843662B1
公开(公告)日：2018-10-03
申请号：EP14173906.0
申请日：2014-06-25
申请人： LSI Corporation
发明人： Pan, Lu , Lu, Lu , Xia, Haitao
IPC分类号： G11B20/18
CPC分类号： G11B5/09 , G11B5/012 , G11B20/1833
摘要： A storage system includes a storage medium operable to maintain a data set, a read/write head assembly operable to write the data set to the storage medium and to read the data set from the storage medium, a multi-level encoder operable to encode the data set at a plurality of different code rates before it is written to the storage medium, and a multi-level decoder operable to decode the data set retrieved from the storage medium and to apply decoded values encoded at a lower code rate when decoding values encoded at a higher code rate.

7. 发明公开

EP3306611A1 RECORDING DEVICE, RECORDING METHOD, RECORDING MEDIUM 有权
标题翻译：记录装置，记录方法，记录介质
公开(公告)号：EP3306611A1
公开(公告)日：2018-04-11
申请号：EP16799632.1
申请日：2016-03-09
申请人： Sony Corporation
发明人： KURAOKA, Tomotaka
IPC分类号： G11B20/12 , G11B7/004 , G11B7/0045 , G11B20/10 , G11B20/18 , G11B27/00
摘要： In order to realize efficient access in the case of restoring read failure data by RMW at the time of data rewriting, a recording apparatus includes a write/read unit capable of performing data writing in a second data unit, in which a plurality of first data units of a predetermined amount of data are consecutive, and data reading in the first data unit with respect to a recording medium and a control unit. In response to a rewrite instruction of data, the control unit instructs the write/read unit to generate write data in the second data unit using update data relevant to the rewrite instruction and recorded data read out from the recording medium and to write the write data at a non-recording address on the recording medium, and generates or updates replacement information for associating an address at which the write data is written, as a replacement destination, with an address of a replacement source. In addition, the control unit generates extended replacement information including validity/invalidity information for each piece of data in the first data unit in the write data, as information linked to the replacement information, according to predetermined conditions.
摘要翻译：为了在数据重写时通过RMW恢复读取失败数据的情况下实现高效访问，记录装置包括能够在第二数据单元中执行数据写入的写入/读取单元，其中多个第一数据预定量的数据的单元是连续的，并且在第一数据单元中相对于记录介质和控制单元的数据读取。响应于数据的重写指令，控制单元使用与重写指令相关的更新数据和从记录介质读出的记录数据指示写入/读取单元在第二数据单元中生成写入数据，并写入写入数据在记录介质上的非记录地址处生成或更新用于将写入写入数据的地址作为替换目的地与替换源的地址相关联的替换信息。另外，控制单元根据预定条件，生成包括写入数据中的第一数据单元中的每个数据的有效/无效信息的扩展替换信息作为链接到替换信息的信息。

8. 发明授权

EP2833360B1 DECODING DEVICE AND DECODING METHOD 有权
标题翻译：解码设备和解码方法
公开(公告)号：EP2833360B1
公开(公告)日：2018-02-28
申请号：EP13769315.6
申请日：2013-03-28
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： NAKATA, Kohei , HINO, Yasumori , TAKAGI, Yuji , NAKASENDO, Tsuyoshi
IPC分类号： G11B20/18 , G11B20/14 , H03M13/41 , H04L1/00
CPC分类号： G11B20/10 , G11B7/005 , G11B20/10277 , H03M13/1105 , H03M13/1515 , H03M13/41 , H03M13/6331 , H04L1/004
摘要： A decoding device includes: an interference canceling circuit (104) which extracts, from states of 2 K -number (where K is a natural number) of detected signals that are likely within a range of K bit width where an interference between bits of the digital information occurs due to predetermined frequency characteristics, most likely 2 M -number (where M is a natural number) of detected signals respectively corresponding to states of 2 M -number of detected signals which exist within a range of M bit width that is included in the range of K bit width; and a Viterbi decoding circuit (105) which generates a decoded signal by calculating differences between the 2 M -number of detected signals extracted by the interference canceling circuit (104) and expectation signals respectively corresponding to the 2 M -number of detected signals and also by selecting a transition sequence of a state of a detected signal for which the calculated difference is smallest.

9. 发明公开

EP3267440A1 DATA DETECTION DEVICE, REPRODUCTION DEVICE, AND DATA DETECTION METHOD 有权
标题翻译：数据检测装置，再现装置和数据检测方法
公开(公告)号：EP3267440A1
公开(公告)日：2018-01-10
申请号：EP15884029.8
申请日：2015-12-09
申请人： Sony Corporation
发明人： HIGASHINO, Satoru
IPC分类号： G11B20/10 , G11B20/18
CPC分类号： G11B20/10055 , G11B20/10009 , G11B20/10046 , G11B20/10277 , G11B20/10287
摘要： Data detection capability is improved by whitening crosstalk noise from an equalization signal and detecting binary data. Each of a plurality of detection signals generated by using photoreceptor signals of a plurality of divided areas of an optical detection section is input to one of a plurality of adaptive equalizers, and outputs of the plurality of adaptive equalizers are computed to obtain an equalization signal for returning light at the time of shining of light onto bounds including a target track subject to data detection and adjacent tracks of an optical recording medium having a plurality of tracks formed thereon. Crosstalk noise from the adjacent tracks included in the equalization signal obtained by this multi-input adaptive equalization process is whitened first, followed by a binarization process. Also, an equalization error is found from an equalization target obtained based on a binary detection result and from the equalization signal obtained by the multi-input adaptive equalization process, and the equalization error is supplied to the plurality of adaptive equalizers as a control signal for adaptive equalization. Further, a whitening factor updating process is also performed to adaptively update a filter factor of a whitening filter.
摘要翻译：通过使来自均衡信号的串扰噪声白化并检测二进制数据来改善数据检测能力。通过使用光学检测部分的多个分割区域的光感受器信号生成的多个检测信号中的每一个被输入到多个自适应均衡器中的一个，并且计算多个自适应均衡器的输出以获得均衡信号，在光照射时将光返回到包括受到数据检测的目标轨道和其上形成有多个轨道的光学记录介质的相邻轨道的边界上。通过该多输入自适应均衡处理获得的均衡信号中包括的相邻轨道的串扰噪声首先被白化，随后是二值化处理。而且，从基于二进制检测结果获得的均衡目标和通过多输入自适应均衡处理获得的均衡信号中找到均衡误差，并且将均衡误差提供给多个自适应均衡器作为用于自适应均衡。此外，还执行白化因子更新处理以自适应地更新白化滤波器的滤波因子。

10. 发明公开

EP3262500A1 DATA STRIPPING, ALLOCATION AND RECONSTRUCTION 审中-公开
标题翻译：数据泄漏，分配和重建
公开(公告)号：EP3262500A1
公开(公告)日：2018-01-03
申请号：EP16755994.7
申请日：2016-02-26
申请人： Agency for Science, Technology and Research
发明人： JIN, Chao , CHEN, Shibin , XI, Weiya , YONG, Khai Leong , XU, Quanqing
IPC分类号： G06F3/06 , G06F11/10 , G11B20/18 , G06F12/08 , G06F17/30
CPC分类号： G06F11/2094 , G06F3/06 , G06F11/1076 , G06F11/1088 , G06F17/30 , G06F2201/82 , G06F2211/104
摘要： A method for data stripping, allocation and reconstruction in an active drive storage system including a plurality of active object storage devices, each of the plurality of active object storage devices including one or more storage devices and a controller is provided. The method includes the controller of the identified one of the plurality of active object storage devices segmenting the received data into a plurality of data chunks and generating one or more parity chunks in response to the plurality of data chunks. The method further includes the controller of the identified one of the plurality of active object storage devices reorganizing the plurality of data chunks and the one or more parity chunks in response to a number of the plurality of data chunks and a number of the one or more of the plurality of active object storage devices into which the received data is to be stored. Finally, the method includes the step of the controller of the identified one of the plurality of active object storage devices storing the plurality of data chunks and the one or more parity chunks into the one or more of the plurality of active object storage devices.

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