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1. 发明专利

JP2006012241A Lens position controller, lens position controlling method, and information storage device 有权
标题翻译：镜头位置控制器，镜头位置控制方法和信息存储设备
公开(公告)号：JP2006012241A
公开(公告)日：2006-01-12
申请号：JP2004185178
申请日：2004-06-23
申请人： Fujitsu Ltd , 富士通株式会社
发明人： IUMI YOSHIAKI
IPC分类号： G11B7/09
摘要： PROBLEM TO BE SOLVED: To precisely control the position of an irradiation lens for irradiating a recording medium with a light.
SOLUTION: There are provided: a means (23) for estimating a high-frequency component of a positional error signal; means (13, 14, and 15) for detecting the timing when noise is generated in the positional error signal; and a means (24) for removing the noise by replacing the original high-frequency component of the positional error signal with an estimated value for the high-frequency component at the timing when the noise is generated, wherein the position of the lens is controlled using the positional error signal in which the noise is removed. Alternatively, as the means for detecting the timing when the noise is generated in the positional error signal, a means using the difference between the original high-frequency component and the estimated value of the high-frequency component is provided, and the noise in the positional error signal is removed by an optional noise removing means. Alternatively, a means (21) for delaying the low-frequency component with respect to the high-frequency component of the positional error signal is provided, and the noise in the positional error signal is removed by the optional noise removing means using the delayed low-frequency component.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：精确地控制用于用光照射记录介质的照射透镜的位置。提供：一种用于估计位置误差信号的高频分量的装置（23）; 用于在位置误差信号中产生噪声时检测定时的装置（13,14和15）; 以及用于通过在产生噪声的定时用用于高频分量的估计值替换位置误差信号的原始高频分量来消除噪声的装置（24），其中控制透镜的位置使用去除噪声的位置误差信号。或者，作为用于检测在位置误差信号中产生噪声的定时的装置，提供使用原始高频分量与高频分量的估计值之间的差异的装置，并且通过可选的噪声去除装置去除位置误差信号。或者，提供用于相对于位置误差信号的高频分量来延迟低频分量的装置（21），并且通过使用延迟低的可选噪声去除装置去除位置误差信号中的噪声频率分量。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2002025078A MEMORY DEVICE, TRACKING CONTROL METHOD AND TRACKING CONTROLLER 失效
公开(公告)号：JP2002025078A
公开(公告)日：2002-01-25
申请号：JP2000199549
申请日：2000-06-30
申请人： FUJITSU LTD
发明人： IUMI YOSHIAKI
IPC分类号： G11B5/596 , G11B7/085 , G11B7/09 , G11B7/095
摘要： PROBLEM TO BE SOLVED: To constitute a servo system of simple constitution and a low cost by realizing the servo system capable of dealing with the higher order resonance frequency of an actuator. SOLUTION: This recorder has a carriage 5 which is mounted with a head 3 for at least reading a disk 1 and drives the head 3 to the track position of the disk 1, a detecting circuit 9 which detects the positional error to the track from the read output of the head and a servo control section 11 which controls the carriage in such a manner that the head follows up the track. The servo control section 11 has a digital filter for increasing the gain so as to have the gain higher than the open loop gain of the phase crossing frequency f6 within a range the gain does not attain >=0 dB at the frequency at which the phase reaches (-180+360×N) deg. in a frequency region where the open loop characteristic of the tracking servo system by the servo control section described above is higher than the phase crossing frequency f6 and lower than the higher order resonance frequency f9 of the carriage. A phase margin increases as the gain is increased.

3. 发明专利

JP2012067662A Engine control program and device 有权
标题翻译：发动机控制程序和设备
公开(公告)号：JP2012067662A
公开(公告)日：2012-04-05
申请号：JP2010212677
申请日：2010-09-22
申请人： Fujitsu Ltd , Transtron Inc , 富士通株式会社 , 株式会社トランストロン
发明人： EJIRI KAKU , IUMI YOSHIAKI
IPC分类号： F02D21/08 , F02D23/00 , F02D43/00 , F02D45/00
CPC分类号： Y02T10/144
摘要： PROBLEM TO BE SOLVED: To improve engine characteristics in a transient condition.SOLUTION: There is provided an engine control method which includes: acquiring a set value A of a fuel injection quantity to an engine having an exhaust circulator and variable nozzle turbo, a set value B of an engine speed, a measured value C of engine intake pressure and a measured value D of fresh air quantity; acquiring a target value E of the intake pressure and a target value F of the fresh air quantity corresponding to the set value A and B and a target value G of the nozzle opening of the variable nozzle turbo and a target value H of valve opening of the exhaust circulator corresponding to the set value A and B; calculating a correction amount H of the target value E corresponding to variation in the measured value C per unit time or variation in the target value E per unit time; calculating a controlled variable J of the nozzle opening of the variable nozzle turbo and a controlled variable K of the valve opening of exhaust circulator based on the target value E and F, the measured vales C and D and the correction amount H; and calculating a command value of the nozzle opening of the variable nozzle turbo and a command value of the valve opening of the exhaust circulator based on the controlled variables J and K and the target values G and H.
摘要翻译：要解决的问题：在瞬态条件下改善发动机特性。解决方案：提供了一种发动机控制方法，其包括：向具有排气循环器和可变喷嘴涡轮的发动机获取燃料喷射量的设定值A，发动机转速的设定值B，测量值C 的发动机进气压力和新鲜空气量的测量值D; 获取进气压力的目标值E和对应于设定值A和B的新鲜空气量的目标值F和可变喷嘴涡轮机的喷嘴开口的目标值G和阀开度的目标值H 排气循环器对应于设定值A和B; 计算对应于每单位时间的测量值C的变化或每单位时间的目标值E的变化的目标值E的校正量H; 基于目标值E和F，测量的值C和D以及校正量H，计算可变喷嘴涡轮的喷嘴开口的受控变量J和排气循环器的阀开度的受控变量K. 并根据受控变量J，K和目标值G，H计算出可变喷嘴涡轮的喷嘴开口的指令值和排气循环器的开度的指令值。（C） 2012年，JPO＆INPIT

4. 发明专利

JP2008065861A Magnetic head slider 审中-公开
标题翻译：磁头滑块
公开(公告)号：JP2008065861A
公开(公告)日：2008-03-21
申请号：JP2006239232
申请日：2006-09-04
申请人： Fujitsu Ltd , 富士通株式会社
发明人： FUJIMAKI TORU , IMAMURA TAKAHIRO , YOKOHATA TORU , IUMI YOSHIAKI
IPC分类号： G11B21/21 , G11B5/60
摘要： PROBLEM TO BE SOLVED: To provide a magnetic head slider which can make stabilized low floating by reducing the influence of the intermolecular force.
SOLUTION: The magnetic head slider of this invention is composed of a main slider provided at the end of the suspension and always in contact with the surface of a magnetic disk, an auxiliary slider sufficiently smaller and lighter than the main slider and elastically supported on it at a certain distance from the magnetic disk surface, and a magnetic head mounted on the auxiliary slider to make information recording and reproducing on the disk.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种磁头滑动器，其可以通过减小分子间力的影响而使稳定的低浮动。解决方案：本发明的磁头滑块由设置在悬架端部并总是与磁盘表面接触的主滑动件构成，辅助滑块足够小于主滑块并且比弹性地更轻支撑在与磁盘表面一定距离处的磁头，以及安装在辅助滑块上的磁头，用于在磁盘上进行信息记录和再现。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2012241667A Method and device for calculating target value 有权
标题翻译：用于计算目标值的方法和装置
公开(公告)号：JP2012241667A
公开(公告)日：2012-12-10
申请号：JP2011114786
申请日：2011-05-23
申请人： Fujitsu Ltd , 富士通株式会社 , Transtron Inc , 株式会社トランストロン
发明人： EJIRI KAKU , IUMI YOSHIAKI , SASAKI JUN
IPC分类号： F02D41/02 , F02B37/24 , F02D21/08 , F02D23/00 , F02D43/00 , F02M25/07
CPC分类号： Y02T10/144
摘要： PROBLEM TO BE SOLVED: To reduce NOx in a transient operation state with respect to engine control technology.SOLUTION: A method for calculating a target value includes: a step for obtaining a target value of an intake oxygen concentration and a target value of an engine intake air amount, which correspond to the set value of a fuel injection amount and the set value of an engine rotational speed of an engine having an exhaust gas circulation device and a variable nozzle turbo; a step for calculating a target value of an exhaust gas recirculation rate based on the obtained target value of the intake oxygen concentration and the reflux time required for returning an exhaust gas through the exhaust gas circulation device; and a step for calculating a target value of an engine fresh air amount based on the calculated target value of the exhaust gas recirculation rate and the obtained target value of the engine intake air amount. The engine characteristics in the transient state are improved.
摘要翻译：要解决的问题：为了在相对于发动机控制技术的瞬态操作状态下减少NOx。解决方案：一种用于计算目标值的方法包括：获得与燃料喷射量的设定值对应的进气氧浓度的目标值和发动机进气量的目标值的步骤，以及具有排气循环装置和可变喷嘴涡轮的发动机的发动机转速的设定值; 基于所获得的进气氧浓度的目标值和通过排气循环装置使废气返回所需的回流时间来计算排气再循环率的目标值的步骤; 以及基于计算出的排气再循环速度的目标值和所获得的发动机进气量的目标值来计算发动机新鲜空气量的目标值的步骤。改善了过渡状态下的发动机特性。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2009129518A Disk drive and method for correcting head floating amount 审中-公开
标题翻译：磁盘驱动器和校正头部浮动量的方法
公开(公告)号：JP2009129518A
公开(公告)日：2009-06-11
申请号：JP2007304983
申请日：2007-11-26
申请人： Fujitsu Ltd , 富士通株式会社
发明人： IUMI YOSHIAKI , IMAMURA TAKAHIRO
IPC分类号： G11B21/21 , G11B25/04 , G11B33/14
摘要： PROBLEM TO BE SOLVED: To measure atmospheric pressure in a device casing without using any atmospheric pressure sensor and to correct the floating fluctuation amount of a head according to the atmospheric pressure.
SOLUTION: A disk drive includes a power consumption detection means 23 for detecting the value of the power consumption of a spindle motor for rotating a recording medium, an atmospheric pressure calculation means 24 for calculating atmospheric pressure in the device from the value of power consumption, and a thermal expansion actuator as a floating amount correction means for correcting the floating amount of a head slider having a recording/reproducing head mounted thereon according to the atmospheric pressure in the device.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了测量装置壳体中的大气压力而不使用任何大气压力传感器，并根据大气压力校正头部的浮动波动量。解决方案：磁盘驱动器包括用于检测用于旋转记录介质的主轴电机的功耗值的功耗检测装置23，用于从装置的大小压力计算装置中的大气压计算的大气压计算装置24，功率消耗和作为浮动量校正装置的热膨胀致动器，用于根据装置中的大气压来校正其上安装有记录/再现头的磁头滑块的浮动量。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2008146688A Positioning control method of recording magnetic field and magnetic recording device 审中-公开
标题翻译：记录磁场和磁记录装置的定位控制方法
公开(公告)号：JP2008146688A
公开(公告)日：2008-06-26
申请号：JP2006328911
申请日：2006-12-06
申请人： Fujitsu Ltd , 富士通株式会社
发明人： OTAKE MASAYA , IUMI YOSHIAKI
IPC分类号： G11B5/31 , G11B5/02 , G11B21/10
摘要： PROBLEM TO BE SOLVED: To realize positioning control of a magnetic head with satisfactory accuracy at a low cost.
SOLUTION: The magnetic head capable of changing a distribution of a recording magnetic field is used. In the case where information is recorded to the recording medium, the magnetic head is moved onto a target recording track by an actuator, and when a difference in position between the magnetic head and the target recording track is within a prescribed range, the recording is performed by changing the distribution of the recording magnetic field outputted by the magnetic head in such a manner that the position to maximize the recording magnetic field of the magnetic head comes to the position of the target recording track (S4, S6).
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：以低成本实现令人满意的精度的磁头的定位控制。解决方案：使用能够改变记录磁场分布的磁头。在将信息记录到记录介质的情况下，磁头通过致动器移动到目标记录轨道上，并且当磁头和目标记录磁道之间的位置差在规定范围内时，记录是通过以使得磁头的记录磁场最大化的位置到达目标记录轨道的位置的方式改变由磁头输出的记录磁场的分布来执行（S4，S6）。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2004220718A Optical disk device and track jump control method 审中-公开
公开(公告)号：JP2004220718A
公开(公告)日：2004-08-05
申请号：JP2003008537
申请日：2003-01-16
申请人： Fujitsu Ltd , 富士通株式会社
发明人： IUMI YOSHIAKI
IPC分类号： G11B21/08 , G11B7/085
摘要： PROBLEM TO BE SOLVED: To perform accurately track jump with simple constitution with respect to an optical disk device and a track jump control method.
SOLUTION: Such a track jump control system comprising a fine actuator model monitoring movement of an actuator during tracking a track. a fine actuator servo compensator making a track jump output for a fine actuator by forming a feedback control loop for the fine actuator model at the same time track jump is started and giving a target value of track jump to the control loop, and a brake pulse generator calculating brake pulses for a carriage from an output of the fine actuator model at the same time a track jump is started, is arranged.
COPYRIGHT: (C)2004,JPO&NCIPI

9. 发明专利

JP2012012968A Engine control program and device 有权
标题翻译：发动机控制程序和设备
公开(公告)号：JP2012012968A
公开(公告)日：2012-01-19
申请号：JP2010148287
申请日：2010-06-29
申请人： Fujitsu Ltd , Transtron Inc , 富士通株式会社 , 株式会社トランストロン
发明人： EJIRI KAKU , MARUYAMA TSUGIHITO , IUMI YOSHIAKI
IPC分类号： F02D21/08 , F02D23/00 , F02D43/00
CPC分类号： Y02T10/144
摘要： PROBLEM TO BE SOLVED: To improve target value following performance by a proper aspect in intake control including a saturation element with respect to an engine having an exhaust gas recirculator and a variable nozzle turbo.SOLUTION: In this engine control method, from a control amount of a nozzle opening of the variable nozzle turbo and a control amount of a valve opening of the exhaust gas recirculator, a target value of the nozzle opening of the variable nozzle turbo and a target value of the valve opening of the exhaust gas recirculator, and a first saturation compensation amount for compensating the nozzle opening of the variable nozzle turbo with respect to the saturation of the valve opening of the exhaust gas recirculator and a second saturation compensation amount for compensating the valve opening of the exhaust gas recirculator with respect to the saturation of the nozzle opening of the variable nozzle turbo, a command value of the nozzle opening of the variable nozzle turbo and a command value of the valve opening of the exhaust gas recirculator are calculated, and an intake control system of the engine having the exhaust gas recirculator and the variable nozzle turbo is controlled.
摘要翻译：要解决的问题：通过相对于具有废气再循环器和可变喷嘴涡轮的发动机的饱和元件的进气控制中的适当方面来提高目标值。解决方案：在该发动机控制方法中，根据可变喷嘴涡轮机的喷嘴开度的控制量和排气再循环器的阀开度的控制量，可变喷嘴涡轮机的喷嘴开口的目标值和排气再循环器的阀开度的目标值，以及用于补偿可变喷嘴涡轮机的喷嘴开口相对于排气再循环器的阀开度的饱和度的第一饱和补偿量和第二饱和补偿量用于相对于可变喷嘴涡轮的喷嘴开口的饱和度补偿排气再循环器的阀开度，可变喷嘴涡轮的喷嘴开口的指令值和排气再循环器的阀开度的指令值并且控制具有废气再循环器和可变喷嘴涡轮的发动机的进气控制系统。版权所有（C）2012，JPO＆INPIT

10. 发明专利

JP2010003352A Ramp mechanism and magnetic disk device 审中-公开
标题翻译： RAMP机构和磁盘设备
公开(公告)号：JP2010003352A
公开(公告)日：2010-01-07
申请号：JP2008160930
申请日：2008-06-19
申请人： Fujitsu Ltd , 富士通株式会社
发明人： IUMI YOSHIAKI
IPC分类号： G11B21/12 , G11B21/22
摘要： PROBLEM TO BE SOLVED: To provide a ramp mechanism and a magnetic disk device in which lubricant attached to a head slider can be removed efficiently.
SOLUTION: A removal mechanism 30 having heating heaters 31, 32 for removing lubricant attached to side surface parts 13a, 13b of a flow-out end side of the head slider 13 when the head slider 13 having a magnetic head is evacuated at a ramp part 16 and stopped at the prescribed position is arranged at a ramp part 16 included in the magnetic disk device; the lubricant attached to the head slider 13 can be removed by evaporating the lubricant by heating of the heating heaters 31, 32.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供斜坡机构和磁盘装置，其中可以有效地去除附着在磁头滑块上的润滑剂。解决方案：具有加热加热器31,32的去除机构30，用于当具有磁头的磁头滑块13被排出时，用于去除附着到磁头滑块13的流出端侧的侧表面部分13a，13b的润滑剂在规定位置停止的斜坡部16配置在包含在磁盘装置中的斜坡部16上; 可以通过加热加热器31,32来蒸发润滑剂来除去附着在头滑块13上的润滑剂。（C）2010，JPO＆INPIT

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