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1. 发明专利

JP2007172833A Information recording and/or reproducing device, and device for controlling the same 审中-公开
标题翻译：信息记录和/或再现装置，以及用于控制其的装置
公开(公告)号：JP2007172833A
公开(公告)日：2007-07-05
申请号：JP2007078648
申请日：2007-03-26
申请人： Fujitsu Ltd , 富士通株式会社
发明人： TAKAMATSU KOHEI , TOMITA ISAMU , ITO KENJI , SAITO TOMOAKI , TSURUMI KOJI
IPC分类号： G11B21/10
摘要： PROBLEM TO BE SOLVED: To provide an information recording and/or reproducing device capable of reducing power consumption during a seeking operation, and its control device, regarding an information recording and/or reproducing device for recording information in a medium and/or reproducing information from the medium, and a device for controlling the same.
SOLUTION: The information recording and/or reproducing device for reproducing servo information recorded beforehand in a medium and executing a seeking operation based on the servo information includes a first control unit for instructing the seeking operation based on a command received from a host device, and a second control unit operated independently of the first control unit. The second control unit includes a counting means for starting counting upon detecting the servo information during the seeking operation started based on the command, a predicting means for predicting detection timing of next servo information based on the counting result, and a power saving means for executing power saving processing until the next servo information appears based on the prediction result.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在搜索操作期间降低功耗的信息记录和/或再现装置及其控制装置，用于在信息记录和/或再现装置中记录信息在介质和/ 或从介质再现信息，以及用于控制该信息的装置。解决方案：用于再现预先记录在介质中并基于伺服信息执行寻道操作的伺服信息的信息记录和/或再现装置包括：第一控制单元，用于基于从主机接收到的命令来指示寻道操作装置和独立于第一控制单元操作的第二控制单元。第二控制单元包括：计数装置，用于在根据该命令开始的寻道操作期间检测伺服信息时开始计数;预测装置，用于根据计数结果预测下一个伺服信息的检测定时;以及功率保存装置，用于执行基于预测结果直到下一个伺服信息出现的省电处理。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2006209902A Seek error retry method of disk apparatus, and disk apparatus 有权
标题翻译：磁盘设备的SEEK错误重试方法和磁盘设备
公开(公告)号：JP2006209902A
公开(公告)日：2006-08-10
申请号：JP2005023548
申请日：2005-01-31
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SAITO TOMOAKI
IPC分类号： G11B21/08 , G11B21/12
CPC分类号： G11B5/5547 , G11B5/48 , G11B21/083 , G11B21/22
摘要： PROBLEM TO BE SOLVED: To perform retry-process safely even at the time of seek error, in a disk apparatus having a ramp load mechanism.
SOLUTION: In a disk apparatus provided with a ramp (20) for retreating a head (26) from a disk (12), before seek retry at the time of seek error retry is started, it is checked whether the head (26) rides on the ramp (20) or not, when the head does not ride on the ramp (20), seek retry is performed as usual, when the head rides on the ramp (20), seek try is performed after repeating it from unloading. Therefore, in a ramp load applied apparatus, crush by ride of the ramp caused by a seek error can be prevented, and improvement of reliability can be expected.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：即使在寻求错误时也能安全地进行重试，在具有斜坡加载机构的盘装置中。解决方案：在设置有用于从盘（12）退回头（26）的斜坡（20）的盘装置中，在寻道错误重试开始之前的寻求重试之前，检查头（ 26）在斜坡（20）上骑行时，当头部没有骑在坡道（20）上时，如通常那样进行寻道重试，当头部骑在坡道（20）上时，重复进行寻求尝试从卸货。因此，在施加斜坡负载的装置中，可以防止由寻道误差引起的斜坡的摩擦，从而可以提高可靠性。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2005070964A Control method and disk device 审中-公开
标题翻译：控制方法和磁盘设备
公开(公告)号：JP2005070964A
公开(公告)日：2005-03-17
申请号：JP2003297637
申请日：2003-08-21
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SAITO TOMOAKI , KOSUGI TATSUHIKO
IPC分类号： G11B21/08 , G05B11/32 , G05B11/36 , G05B13/02 , G05D3/12
摘要： PROBLEM TO BE SOLVED: To provide a method for optimally adjusting at least either a pattern of the predictive action of a head that is inputted as the head's target position signal or a corresponding pattern of drive signals for driving the head, when applying feed-forward control to seek operation.
SOLUTION: The method comprises a step for holding a control system in an open-loop state; an experimental step for experimentally operating the head using the drive signals matching the drive-signal pattern; and a corrective step for correcting at least either the pattern of the predictive action or the pattern of the drive signals depending on the operating condition of the head in the experimental step.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于最佳地调整作为头的目标位置信号输入的头部的预测动作的图案或用于驱动头部的相应的驱动信号的图案的方法，当应用前瞻控制寻求操作。解决方案：该方法包括用于将控制系统保持在开环状态的步骤; 使用与驱动信号图案匹配的驱动信号实验地操作磁头的实验步骤; 以及校正步骤，用于根据实验步骤中的头部的操作条件来校正预测动作的图案或驱动信号的图案。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2008021380A Seek control device, seek control method, storage device 审中-公开
标题翻译： SEEK控制装置，SEEK控制方法，存储装置
公开(公告)号：JP2008021380A
公开(公告)日：2008-01-31
申请号：JP2006193654
申请日：2006-07-14
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SAITO TOMOAKI , TOMITA ISAMU
IPC分类号： G11B21/08
CPC分类号： G11B5/5547
摘要： PROBLEM TO BE SOLVED: To provide a seek control device which prevents deterioration of performance due to residual vibration at seek time, a seek control method, and a disk device thereof. SOLUTION: The seek control device which performs seek control of a head, is provided with an MCU 11 which acquires control information corresponding to data length directed from outside in the control information stored in a storage part 18 which stores control information for seek control for every data length extent which is the extent of a plurality of predetermined data lengths, and performs seek control based on the control information. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以防止由于寻道时间的残余振动导致的性能下降的寻道控制装置，寻道控制方法及其盘装置。解决方案：执行头部搜索控制的寻道控制装置设置有MCU 11，其获取与存储在存储用于搜索的控制信息的存储部分18中的控制信息中从外部指向的数据长度相对应的控制信息的MCU 11 控制作为多个预定数据长度的范围的每个数据长度范围，并且基于控制信息执行搜索控制。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2005243106A Position controller 有权
标题翻译：位置控制器
公开(公告)号：JP2005243106A
公开(公告)日：2005-09-08
申请号：JP2004049301
申请日：2004-02-25
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SAITO TOMOAKI , KOSUGI TATSUHIKO
IPC分类号： G11B21/08 , G11B5/55
CPC分类号： G11B5/5526
摘要： PROBLEM TO BE SOLVED: To highly accurately move a magnetic head to a target position at a high speed corresponding to characteristics unique to the VCM or the like of each disk device.
SOLUTION: An FF current plus gain adjusting part 130 adjusts acceleration current data or saturated acceleration current data based on the determination result of a position determining part 120 at the time of finishing seeking, and an FF current minus gain adjusting part 150 adjusts deceleration current data based on the determination result of a speed determining part 140 at the time of finishing seeking. Based on an error between an FF position track and a real position track, an FF position track adjusting part 100 corrects FF position track data stored in an FF position track generation part 50, and adjusts a last reached position to match a target position.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：以高速精确地将磁头移动到对应于每个磁盘装置的VCM等特有的特性的高速。解决方案：FF电流加增益调整部分130基于在完成寻找时的位置确定部分120的确定结果来调整加速电流数据或饱和加速度电流数据，并且FF电流减去增益调整部分150调整减速电流数据基于速度确定部件140在完成寻找时的确定结果。基于FF位置轨迹和实际位置轨迹之间的误差，FF位置轨迹调节部100对存储在FF位置轨迹生成部50中的FF位置轨迹数据进行校正，并且调整最终到达位置以匹配目标位置。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2000173211A STORAGE DEVICE AND DISK POSITION DETECTION METHOD USED IN THE DEVICE 失效
公开(公告)号：JP2000173211A
公开(公告)日：2000-06-23
申请号：JP34063298
申请日：1998-11-30
申请人： FUJITSU LTD
发明人： SAITO TOMOAKI , KOSUGI TATSUHIKO
IPC分类号： G05D3/12 , G11B5/55 , G11B5/596 , G11B21/08 , G11B21/10 , G11B33/08
摘要： PROBLEM TO BE SOLVED: To prevent the vibration of a head and to reduce the time required to move the head even though the number of servo patterns for one track on a disk is small and a servo pattern head is located in a dead zone. SOLUTION: The storage device is provided with a magnetic disk, which has two servo patterns per track, a servo demodulating circuit, which detects the position of a head as a detection position signal Sp1 based on the patterns, a comparison section 130, which outputs the difference between a target position signal Sp0 and the signal Sp1 as a positional error signal Ss, an amplifying section 131, which amplifies the signal Ss with a gain G1 that is lower than a gain G0, and a control section 132 which outputs a voice coil motor(VCM) operating amount signal Sm1 corresponding to the operating amount against a VCM 115 to move a magnetic head to the VCM 115 based on an amplified positional error signal P1.

7. 发明专利

JPH11353830A METHOD AND DEVICE FOR DRIVING ACTUATOR OF STORAGE DISK DEVICE 失效
公开(公告)号：JPH11353830A
公开(公告)日：1999-12-24
申请号：JP15270298
申请日：1998-06-02
申请人： FUJITSU LTD
发明人： SAITO TOMOAKI , GOFUKU TATSUYA
IPC分类号： G11B21/10 , G11B5/55
摘要： PROBLEM TO BE SOLVED: To prevent switching noise from being superposed onto a servo signal in a method and a device for driving an actuator that performs the PWM driving of the actuator. SOLUTION: The device has a storage disk 1, a head 2 that reads the information of the storage disk 1, a PWM driver 9 that generates a driving current with a pulse width corresponding to a current instruction value, a linear driver 10 that generates the driving current with a level corresponding to the current instruction value 10, an actuator VCM that is driven by the drive current and moves the head 2, and a control circuit 7 that creates the current instruction value for positioning the head according to servo information being read from the storage disk 1. In this constitution, the driving method includes a step for the PWM driving of an actuator by the PWM driver 9, and a step for change from the PWM driving to linear driving due to the linear driver while the control circuit 7 reads the servo information during the PWM driving.

8. 发明专利

JP2003217243A INFORMATION RECORDING AND/OR REPRODUCING DEVICE, AND METHOD FOR SAVING POWER THEREFOR 审中-公开
公开(公告)号：JP2003217243A
公开(公告)日：2003-07-31
申请号：JP2002008577
申请日：2002-01-17
申请人： FUJITSU LTD
发明人： TAKAMATSU KOHEI , TOMITA ISAMU , ITO KENJI , SAITO TOMOAKI , TSURUMI KOJI
IPC分类号： G11B19/00 , G11B5/55 , G11B19/20 , G11B21/08 , G11B21/10
摘要： PROBLEM TO BE SOLVED: To provide an information recording and/or reproducing device capable of reducing power consumption in the course of track follow-up operation, in seek operation, and in spindle motor start, and a method for saving power therefor, with respect to an information recording and/or reproducing device for recording information on a medium and/or for reproducing the information from the medium, and a method for saving power therefor. SOLUTION: The information recording and/or reproducing device reproduces servo information previously recorded on the medium and executes the track follow up operation based on the servo information. The frequency of tack follow up control in the course of the track follow up operation is reduced. Power saving is done in the course of the seek operation except in reproducing the servo information. In addition, the power saving is done until a spindle motor has stationary revolving speed. COPYRIGHT: (C)2003,JPO

9. 发明专利

JP2001101842A DISK DEVICE 失效
公开(公告)号：JP2001101842A
公开(公告)日：2001-04-13
申请号：JP27951299
申请日：1999-09-30
申请人： FUJITSU LTD
发明人： SAITO TOMOAKI , TOMITA ISAMU
IPC分类号： G11B20/12 , G11B5/55 , G11B21/08 , G11B27/10 , G11B19/02
摘要： PROBLEM TO BE SOLVED: To enhance the transfer efficiency of data by shortening the time required for changing heads and cylinders at the time of making access to sequential data. SOLUTION: This disk device accesses storage areas of upper surfaces and to storage areas of back surfaces continuously over plural disks in a cylinder on an access request to the sequential data.

10. 发明专利

JP2006351200A CONTROL METHOD, CONTROL CIRCUIT, AND STORAGE DEVICE 审中-公开
公开(公告)号：JP2006351200A
公开(公告)日：2006-12-28
申请号：JP2006242831
申请日：2006-09-07
申请人： FUJITSU LTD
发明人： SAITO TOMOAKI
IPC分类号： G11B21/10
摘要： PROBLEM TO BE SOLVED: To secure a phase margin of a control system with respect to a control method, a control circuit, and a storage device. SOLUTION: In a head control method of reproducing servo information recorded in a recording medium, a predictive position of a head is subtracted from an actual position of the head on the recording medium, which is obtained from reproduced servo information, to obtain a prediction error, and first feedback is performed for the control system which calculates a current value for driving the head by adding an inputted predictive value, and second feedback to the control system is performed only through a multiplier which multiplies the prediction error by a prescribed multiplication coefficient, and output values of the first and second feedback are added. COPYRIGHT: (C)2007,JPO&INPIT

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