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1. 发明公开

EP4202926A1 MAGNETIC TAPE CARTRIDGE, MAGNETIC TAPE DRIVE, MEMORY, MAGNETIC TAPE, MAGNETIC TAPE SYSTEM, AND OPERATION METHOD OF MAGNETIC TAPE DRIVE 审中-实审
公开(公告)号：EP4202926A1
公开(公告)日：2023-06-28
申请号：EP22214844.7
申请日：2022-12-20
申请人： FUJIFILM Corporation
发明人： YAMASAKI, Nagisa , NAKAO, Toru , MUSHA, Atsushi , TAKISHIMA, Kento
IPC分类号： G11B5/29 , G11B5/48 , G11B5/56 , G11B5/584 , G11B15/07 , G11B21/10
摘要： Provided are a magnetic tape cartridge, a magnetic tape drive, a memory, a magnetic tape, a magnetic tape system, and an operation method of a magnetic tape drive capable of suppressing off-track caused by deformation of a width of a magnetic tape with high accuracy. A magnetic tape cartridge includes a magnetic tape, and a storage medium in which information on the magnetic tape is stored. The magnetic tape has a recording surface. Data is recorded in the recording surface by a magnetic head in a state in which the magnetic tape is made to travel. The magnetic head is disposed at an inclined posture with respect to a width direction of the magnetic tape along the recording surface. Angle adjustment information obtained at a data recording timing which is a timing at which the data is recorded in the recording surface is stored in the storage medium. The angle adjustment information is information for adjusting an angle at which the magnetic head is inclined with respect to the width direction along the recording surface.

2. 发明授权

EP1898411B1 Apparatus for developing a dynamic servo signal from data in a magnetic disc drive and method 有权
标题翻译：装置和方法用于磁盘驱动器上的显影从数据动态伺服信号
公开(公告)号：EP1898411B1
公开(公告)日：2009-06-24
申请号：EP07020150.4
申请日：1999-11-04
申请人： Purchased Patent Management LLC
发明人： Despain, Alvin , Gaines, R Stockton
IPC分类号： G11B21/10 , G11B5/596
CPC分类号： B82Y15/00 , G11B5/5534 , G11B5/59605 , G11B5/59683 , G11B19/04 , G11B20/10009 , G11B20/18 , G11B21/10 , G11B27/36

3. 发明公开

EP1211683A3 Servo defect management scheme in hard disk drives 有权
标题翻译：系统的磁盘驱动器的伺服错误管理
公开(公告)号：EP1211683A3
公开(公告)日：2008-04-09
申请号：EP01122127.2
申请日：2001-09-14
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Chu, Sang-hoon , Shim, Jun-seok , Yu, Seong-hwan , Choi, Soo-Il , Lee, Kang-seok
IPC分类号： G11B21/10
CPC分类号： G11B5/59633 , G11B5/59688 , G11B27/3027
摘要： The present disclosure relates to a system for detecting a plurality of defect types on the surface of a disk in a hard disk drive. In particular, the disclosure relates to utilizing information obtained from a plurality of servo bits to determine if a sector contains a physical defect. Where such a defect is found, the sector's write gate is disabled and its burst signal data is ignored for track following purposes. In addition, large changes in PES are used to identify closure spike defects. Such defects are managed by providing a compensation signal to the read value of the PES to improve track following. Finally, high PES values are used to signal a third defect type where no other signs of defect are present. In such case, the sector is mapped as defective, but the burst signals continue to be used for track following purposes.

4. 发明公开

EP1850332A3 Head position control method, head position control device and disk device 审中-公开
标题翻译：头部位置控制方法，头部位置控制装置和磁盘装置
公开(公告)号：EP1850332A3
公开(公告)日：2008-01-23
申请号：EP06254975.3
申请日：2006-09-26
申请人： Fujitsu Ltd.
发明人： Hara, Takeshi, c/o Fujitsu Limited
IPC分类号： G11B5/596 , G11B21/10
CPC分类号： G11B5/59627 , G11B21/106
摘要： A head position control device controls the position of a head with respect to a disk where a post code 25 is assigned to a servo frame 16. Servo frames of a disk is constituted by a servo frame not having a post code recorded in an inner side zone 4-2 and a servo frame having a post code recorded in an outer side zone 4-1. The device reads the servo frame, demodulates a current position from the servo frame, drives an actuator 3 according to the modulated position, and controls the position of the head to a target position. While implementing a high TPI, the inspection time for post codes can be decreased with a servo frame occupying ratio in consideration of the data format.
摘要翻译：磁头位置控制装置控制磁头相对于磁盘的位置，其中邮编25被分配给伺服框架16.磁盘的伺服框架由不具有记录在内侧的邮编的伺服框架构成区域4-2和具有记录在外侧区域4-1中的邮政编码的伺服帧。该设备读取伺服帧，从伺服帧解调当前位置，根据调制后的位置驱动致动器3，并将头部的位置控制到目标位置。在实现高TPI的同时，考虑到数据格式，可以根据伺服帧占有率来减少邮政编码的检查时间。

5. 发明公开

EP0969465A4 APPARATUS FOR RECORDING AND REPRODUCING INFORMATION 审中-公开
标题翻译：信息记录与再现单元
公开(公告)号：EP0969465A4
公开(公告)日：2007-11-28
申请号：EP99900327
申请日：1999-01-18
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： UMEDA YOSHIO , KOHSO HIROSHI , INAGAKI TATSUHIKO , WADA TOSHIYUKI , KUWAMOTO MAKOTO
IPC分类号： G11B21/10 , G11B5/55
CPC分类号： G11B5/553 , G11B5/5582
摘要： Recording track density is increased to provide large storage by improving positioning accuracy that is limited by the presence of the vibration mode of an actuator (3) for positioning a magnetic head (2). A data recording and reproducing apparatus comprises a magnetic disk (1), a magnetic head (2) movable relative to the magnetic disk (1) to record and reproduce data, an actuator (3) supporting the magnetic head (2) and movable in response to a command, and a controller (4) for controlling the movement of the actuator (3) by producing commands according to the signals read by the magnetic head (2). The actuator (3) has at least one mode of vibration in addition to the mode of rigid-body motion. The controller (4), composed of an internal model including at least one mode of vibration, comprises a state estimation section for estimating the state variables of the modes of vibration and rigid-body motion of the actuator (3) from the signals read by the magnetic head (2) and the controlled variables corresponding to the move command given to the actuator (3), and a generator section for generating controlled variables by using the estimated state variables output from the state estimation section.

6. 发明公开

EP1355312A3 Disk device and disk medium 审中-公开
标题翻译：光盘装置和盘形介质
公开(公告)号：EP1355312A3
公开(公告)日：2007-03-28
申请号：EP03250681.8
申请日：2003-02-03
申请人： FUJITSU LIMITED
发明人： Ashikaga, Hiroshi, c/o Fujitsu Limited , Suzuki, Nobuyuki, c/o Fujitsu Limited
IPC分类号： G11B21/10 , G11B5/596
CPC分类号： G11B21/106 , G11B5/59633
摘要： A disk device and a disk medium in which a plurality of servo cylinders (20) on the surface of at least one disk (10) are divided into several areas (P0,P1) and a different servo signal frequency (FS0, FS1) is set and recorded for each of the areas (P0,P1). The servo cylinders (20) are divided into predetermined areas (P0,P1) and a different servo signal frequency (FS0,FS1) for each of the areas (P0,P1) is set so that the recording density of the servo signals recorded in the disk (10) can be set so as to allow the servo signal demodulation characteristic to be included in a relatively superior range. In such a disk device, the boundary between the area (P0) of a first servo signal frequency (FS0) and the area (P1) of a second servo signal frequency (FS1) adjoining the first servo signal frequency area (P0) is preferably formed with an area in which a servo signal pattern written with the first servo signal frequency (FS0) and a servo signal pattern written with the second servo signal frequency (FS1) are arranged on the same servo cylinders (20).

7. 发明公开

EP1755118A1 MAGNETIC RECORDING MEDIUM, AND MANUFACTURING METHOD, MANUFACTURING EQUIPMENT, RECORDING/REPRODUCING METHOD AND RECORD REPRODUCING DEVICE THEREOF 审中-公开
标题翻译：磁记录介质与方法，生产设备，录音播放和录制播放设备THEREFOR
公开(公告)号：EP1755118A1
公开(公告)日：2007-02-21
申请号：EP05736973.8
申请日：2005-04-28
申请人： Matsushita Electric Industries Co., Ltd.
发明人： MURAKAMI, Motoyoshi, c/oMatsushita E. Ind. Co.,Ltd , BIRUKAWA, Masahiro, c/oMatsushita E. Ind. Co.,Ltd
IPC分类号： G11B11/10 , G11B5/596 , G11B5/65 , G11B5/71 , G11B5/738 , G11B5/82 , G11B5/84 , G11B11/105 , G11B21/10
CPC分类号： G11B11/10582 , B82Y10/00 , G11B5/743 , G11B5/84 , G11B11/10578 , G11B11/10584 , G11B11/10586 , G11B2005/0021
摘要： With a magnetic recording medium, servo pits have to be recorded one disk at a time, which is a problem in that it takes more time and is more expensive. In view of this, with the present invention, at least one signal region whose surface roughness is different from that of other than the signal region is formed on the substrate of a magnetic recording medium comprising a recording layer on a substrate, or on an under layer formed on a substrate.
摘要翻译：用的磁记录介质，伺服凹坑具有要被记录一次一个磁盘，所有这是一个问题，DASS它需要更多的时间，并且更昂贵。鉴于此，在本发明中，至少一个信号区域，其表面粗糙度不同于做的以外的信号区域上的磁性记录介质的包括在一个基片的记录层的基片形成的，或上到下上的基片形成的层。

8. 发明公开

EP1059637A3 Verfahren zur Erweiterung der Bandbreite von analog gespeicherten Sprachsignalen für ein Diktiergerät 有权
标题翻译：处理用于扩展模拟存储的语音信号的带宽的语音记录
公开(公告)号：EP1059637A3
公开(公告)日：2006-12-06
申请号：EP00111728.2
申请日：2000-06-02
申请人： GBS Holding GmbH
发明人： Zhu, Ming, Dr.
IPC分类号： G10L15/26 , G11B27/024 , G11B21/10 , G11B21/02
CPC分类号： G11B20/10527 , G10L15/26 , G11C7/16 , G11C2207/16
摘要： Die Erfindung betrifft ein Verfahren zur Aufzeichnung und Wiedergabe eines Sprachsignals mittels eines Diktiergerätes zur späteren Spracherkennung in einem Spracherkennungssystem, sowie ein Diktiergerät. Bei der Aufzeichnung wird das Sprachsignal von einem Mikrofon aufgenommen und in einen niederfrequenten und einen hochfrequenten Anteil aufgespalten. Der niederfrequente Anteil des Sprachsignals wird in analoger Form gespeichert, der hochfrequente Anteil des Sprachsignals digitalisiert. Im weiteren wird der hochfrequente digitalisierte Anteil des Sprachsignales komprimiert, synchronisiert und gespeichert.

9. 发明公开

EP1683141A1 DISC DRIVE APPARATUS 审中-公开
标题翻译：光盘驱动器设备
公开(公告)号：EP1683141A1
公开(公告)日：2006-07-26
申请号：EP04770245.1
申请日：2004-10-13
申请人： Koninklijke Philips Electronics N.V.
发明人： HEERTJES, Marcel, F. , SPERLING, Frank, B.
IPC分类号： G11B7/09 , G11B21/10 , G11B5/55 , G11B5/596
CPC分类号： G11B21/106 , G11B5/5582 , G11B5/596 , G11B7/0941 , G11B7/0946 , G11B7/0948
摘要： A method is described for controlling an optical disc drive apparatus (1) of a type comprising: scanning means (30) for scanning a record track of an optical disc (2), said scanning means (30) comprising at least one read/write element (34) to be positioned with respect to the disc (2), and at least one optical detector (35) for generating a read signal (SR); actuator means (50) for controlling the positioning of said at least one read/write element (34); a control circuit (290) for receiving said read signal (SR) and generating at least one actuator control signal (SCR) on the basis of at least one signal component of said read signal (SR), the control circuit (290) having at least one variable gain (Ϝ); said control circuit (290), said actuator means (50), said read/write element (34), and said optical detector (35) defining a control loop (200) having a critical frequency (ωCP); the method comprises the steps of: selectively setting the gain (Ϝ), for signal components having a frequency in a predefined range corresponding to said critical frequency (ωCP), to a value lower than a value for signal components having a frequency outside said range.
摘要翻译：描述了一种用于控制光盘驱动装置（1）的方法，该方法包括：用于扫描光盘（2）的记录道的扫描装置（30），所述扫描装置（30）包括至少一个读/写元件（34）相对于盘（2）定位，以及至少一个光学检测器（35），用于产生读取信号（SR）; 致动器装置（50），用于控制所述至少一个读/写元件（34）的定位; 控制电路（290），用于接收所述读取信号（SR）并基于所述读取信号（SR）的至少一个信号分量产生至少一个致动器控制信号（SCR），所述控制电路（290）具有在至少一个可变增益（Ϝ）; 所述控制电路（290），所述致动器装置（50），所述读/写元件（34）和所述光检测器（35）限定具有临界频率（ωCP）的控制环路（200）; 该方法包括以下步骤：对于具有对应于所述临界频率（ωCP）的预定义范围内的频率的信号分量，将增益（ε）选择性地设置为低于具有所述范围外的频率的信号分量的值。

10. 发明公开

EP1665239A1 DISC DRIVE APPARATUS 有权
标题翻译：光盘驱动器设备
公开(公告)号：EP1665239A1
公开(公告)日：2006-06-07
申请号：EP04769944.2
申请日：2004-09-06
申请人： Koninklijke Philips Electronics N.V.
发明人： COOLEN, Rob, J., M. , CREMERS, Franciscus, L., M. , LEENKNEGT, George, A., L. , HEERTJES, Marcel, F.
IPC分类号： G11B7/09 , G11B19/04 , G11B5/55 , G11B21/10
CPC分类号： G11B21/106 , G11B5/5582 , G11B7/0946 , G11B19/04
摘要： A method is described for detecting a mechanical shock in a disc drive apparatus (1) of a type comprising: scanning means (30) for scanning record tracks of a disc (2) and for generating a read signal (SR); actuator means (50) for controlling the positioning of at least one read/write element (34) of said scanning means; a control circuit (90) for receiving said read signal (SR), deriving at least one error signal (RE) from said read signal, and generating at least one actuator control signal (SCR) on the basis of said error signal. The method comprises the steps of: -determining a shock sensitivity function (SSHOCK) which describes the relationship between shocks (OExT) and said error signal; determining or at least approximating an inverse shock sensitivity function (S-1SHOCK) as the inverse of said shock sensitivity function (SSHOCK); - and applying said inverse shock sensitivity function (S1-SHOCK) on said error signal.
摘要翻译：描述了一种用于检测磁盘驱动装置（1）中的机械冲击的方法，该装置包括：扫描装置（30），用于扫描磁盘（2）的记录磁道并用于产生读取信号（SR）; 致动器装置（50），用于控制所述扫描装置的至少一个读/写元件（34）的定位; 控制电路（90），用于接收所述读取信号（SR），从所述读取信号导出至少一个误差信号（RE），并且基于所述误差信号产生至少一个致动器控制信号（SCR）。该方法包括以下步骤： - 确定描述冲击（OExT）与所述误差信号之间的关系的冲击敏感度函数（SSHOCK）确定或至少近似作为所述震动敏感度函数（SSHOCK）的倒数的反冲击敏感度函数（S-1SHOCK）; - 对所述误差信号应用所述反冲击灵敏度函数（S1-SHOCK）。

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