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

US07663832B2 Method of compensating for track zero position in reference servo track copying system and disc drive using the same 失效
标题翻译：补偿参考伺服轨道复制系统中磁道零点位置的方法及使用其的磁盘驱动器
公开(公告)号：US07663832B2
公开(公告)日：2010-02-16
申请号：US11287406
申请日：2005-11-28
申请人： Da-woon Chung , Jun Jeong
发明人： Da-woon Chung , Jun Jeong
IPC分类号： G11B21/02
CPC分类号： G11B5/59633 , G11B5/59627 , G11B5/59666
摘要： A method and apparatus for exactly compensating for a track zero position when copying a reference servo pattern in a disc drive adopting a reference servo track copying method. The method of compensating for a track zero position in a reference servo track copy system for copying a reference servo pattern in a head disc assembly into which a reference disc, on which the reference servo pattern is recorded, produced offline and at least one blank disc are assembled, includes: searching for a collision position of an actuator arm against a stopper for limiting the displacement of the actuator arm on the reference servo pattern; calculating an optimal track zero position based on the searched collision position; and copying the reference servo pattern on all disc surfaces from the calculated optimal track zero position.
摘要翻译：一种在采用基准伺服轨道复制方法的盘驱动器中复制参考伺服模式时，用于精确补偿轨道零位置的方法和装置。补偿参考伺服轨道复制系统中的轨道零位置的方法，用于复制头盘组件中的参考伺服模式，其中记录有参考伺服模式的参考盘离线产生，并且至少一个空白盘包括：将致动器臂的碰撞位置抵靠止动件，以限制致动器臂在基准伺服模式上的位移; 基于搜索的碰撞位置计算最佳轨迹零位置; 并将所述盘表面上的参考伺服图案从所计算的最佳轨迹零位置复制。

2. 发明授权

US07430093B2 Seek control method of hard disk drive, recording medium storing method and hard disk drive adopting method 失效
标题翻译：寻求硬盘驱动器的控制方法，记录介质存储方法和硬盘驱动器采用方法
公开(公告)号：US07430093B2
公开(公告)日：2008-09-30
申请号：US11480443
申请日：2006-07-05
申请人： Jung-ho Lee , Da-woon Chung , Dong-wook Lee , Byoung-kul Ji
发明人： Jung-ho Lee , Da-woon Chung , Dong-wook Lee , Byoung-kul Ji
IPC分类号： G11B5/596
CPC分类号： G11B5/5565 , G11B5/5547
摘要： The present invention relates to a hard disk drive performing a seek control method using a multi-sinusoidal wave acceleration profile, where the seek control method is capable of coping with a variation in a voice coil motor driving current due to variances in a peripheral environment. The seek control method of the present invention includes: calculating a seek time scaling (STC) related to variations in a voice coil motor (VCM) driving current due to variation in a peripheral environment; calculating an acceleration distance ratio (ALR) of an acceleration distance to a maximum seek distance without a coast mode according to the STC; calculating position profiles in an acceleration mode, the coast mode and a deceleration mode, respectively, using both the STC and the ALR; and performing a seek operation by generating the VCM driving current according to the position profiles and applying the VCM driving current to a VCM.
摘要翻译：本发明涉及一种执行使用多正弦波加速度分布的搜索控制方法的硬盘驱动器，其中搜索控制方法能够应对由于周边环境的变化而导致的音圈马达驱动电流的变化。本发明的搜索控制方法包括：计算由于周边环境的变化而导致的音圈电机（VCM）的变化相关的寻道时间缩放（STC）的驱动电流; 根据STC计算加速距离与没有惯性模式的最大寻道距离的加速距离比（ALR）; 使用STC和ALR两者分别在加速模式，惯性模式和减速模式下计算位置分布; 并通过根据位置分布生成VCM驱动电流并将VCM驱动电流施加到VCM来执行寻道操作。

3. 发明授权

US07333286B2 Method of writing a reference servo signal of hard disk drive and apparatus suitable therefor 失效
标题翻译：写入硬盘驱动器的参考伺服信号的方法及其适用的装置
公开(公告)号：US07333286B2
公开(公告)日：2008-02-19
申请号：US11528547
申请日：2006-09-28
申请人： Kwang-jo Jung , Da-woon Chung , Byoung-kul Ji
发明人： Kwang-jo Jung , Da-woon Chung , Byoung-kul Ji
IPC分类号： G11B21/02
CPC分类号： G11B5/59661 , G11B5/59633
摘要： In a method of writing a reference servo signal of a hard disk drive having a spiral reference servo signal that is referred to when writing a final servo signal is written while a head is moved across a disk for a predetermined time at a target movement velocity, an actual movement velocity of the head is detected from a counter electromotive force generated in a voice coil motor that moves that head, for the predetermined time during which the spiral reference servo signal is written, and the head is controlled to maintain the target movement velocity by feeding back the detected actual movement velocity.
摘要翻译：在头部以目标移动速度在盘上移动预定时间的同时，在写入写入最终伺服信号时参考的具有螺旋参考伺服信号的硬盘驱动器的参考伺服信号的写入方法中，从在音圈电动机中产生的反电动势中检测头部的实际移动速度，该音调电动机在将螺旋基准伺服信号写入的预定时间内移动该头部，并且控制头部以保持目标移动速度通过反馈检测到的实际移动速度。

4. 发明申请

US20070297086A1 HDD WRITE CONTROL METHOD AND APPARATUS 失效
标题翻译：硬盘写入控制方法和装置
公开(公告)号：US20070297086A1
公开(公告)日：2007-12-27
申请号：US11766944
申请日：2007-06-22
申请人： Jung-ho LEE , Da-woon CHUNG
发明人： Jung-ho LEE , Da-woon CHUNG
IPC分类号： G11B21/02 , G11B15/04
CPC分类号： G11B5/40 , G11B5/02 , G11B5/5521 , G11B19/043 , G11B21/12
摘要： A Hard Disk Drive (HDD) and related write control method are disclosed. The write control method includes; detecting a free fall state during a current write operation to a current sector, waiting until completion of the current write operation to the current sector, and thereafter stopping the current write operation and unloading a read/write head performing the current write operation.
摘要翻译：公开了一种硬盘驱动器（HDD）和相关的写入控制方法。写控制方法包括：在对当前扇区的当前写入操作期间检测自由落体状态，等待直到对当前扇区的当前写入操作完成，然后停止当前写入操作并卸载执行当前写入操作的读/写头。

5. 发明授权

US07193799B2 Apparatus and method of removing resonance frequency in system 有权
标题翻译：在系统中去除谐振频率的装置和方法
公开(公告)号：US07193799B2
公开(公告)日：2007-03-20
申请号：US10155023
申请日：2002-05-28
申请人： Da-woon Chung
发明人： Da-woon Chung
IPC分类号： G11B5/09
CPC分类号： G11B5/5521 , G11B5/59627
摘要： An apparatus and a method to remove a resonance frequency of a system in which an unnecessary resonance frequency occurs in a head stack assembly (HSA) having a head for reading/writing data. The HSA is identified and filtered to prevent mechanical damage caused by resonance. The system is artificially excited to identify a potential resonance frequency of the system. The system is designed so that the identified resonance frequency is filtered. Thus, resonance frequency components outside of Nyquist frequency bandwidth of the system can also be identified. Also, the resonance frequency can very easily be identified in a time domain without a complicated calculation process such as an additional frequency transformation process. Coefficients of a programmable filter are updated using the identified resonance frequency to prevent mechanical damage caused by resonance and improve a servo tracking performance and reliability of data.
摘要翻译：一种用于去除在具有用于读/写数据的磁头的磁头组组件（HSA）中发生不必要的共振频率的系统的共振频率的装置和方法。识别和过滤HSA以防止由共振引起的机械损伤。该系统被人为激发，以识别系统的潜在共振频率。该系统被设计成使得所识别的共振频率被过滤。因此，也可以识别系统的奈奎斯特频带以外的谐振频率分量。此外，谐振频率可以非常容易地在时域中被识别，而不需要诸如额外的频率变换处理的复杂的计算过程。使用识别的共振频率来更新可编程滤波器的系数，以防止由共振引起的机械损伤，并提高伺服跟踪性能和数据的可靠性。

6. 发明申请

US20070008646A1 Seek control method of hard disk drive, recording medium storing method and hard disk drive adopting method 失效
标题翻译：寻求硬盘驱动器的控制方法，记录介质存储方法和硬盘驱动器采用方法
公开(公告)号：US20070008646A1
公开(公告)日：2007-01-11
申请号：US11480443
申请日：2006-07-05
申请人： Jung-Ho Lee , Da-Woon Chung , Dong-Wook Lee , Byoung-Kul Ji
发明人： Jung-Ho Lee , Da-Woon Chung , Dong-Wook Lee , Byoung-Kul Ji
IPC分类号： G11B5/596 , G11B21/02
CPC分类号： G11B5/5565 , G11B5/5547
摘要： The present invention relates to a hard disk drive performing a seek control method using a multi-sinusoidal wave acceleration profile, where the seek control method is capable of coping with a variation in a voice coil motor driving current due to variances in a peripheral environment. The seek control method of the present invention includes: calculating a seek time scaling (STC) related to variations in a voice coil motor (VCM) driving current due to variation in a peripheral environment; calculating an acceleration distance ratio (ALR) of an acceleration distance to a maximum seek distance without a coast mode according to the STC; calculating position profiles in an acceleration mode, the coast mode and a deceleration mode, respectively, using both the STC and the ALR; and performing a seek operation by generating the VCM driving current according to the position profiles and applying the VCM driving current to a VCM.
摘要翻译：本发明涉及一种执行使用多正弦波加速度分布的搜索控制方法的硬盘驱动器，其中搜索控制方法能够应对由于周边环境的变化而导致的音圈马达驱动电流的变化。本发明的搜索控制方法包括：计算由于周边环境的变化而导致的音圈电机（VCM）的变化相关的寻道时间缩放（STC）的驱动电流; 根据STC计算加速距离与没有惯性模式的最大寻道距离的加速距离比（ALR）; 使用STC和ALR两者分别在加速模式，惯性模式和减速模式下计算位置分布; 并通过根据位置分布生成VCM驱动电流并将VCM驱动电流施加到VCM来执行寻道操作。

7. 发明授权

US08792199B2 Method and apparatus for servo pattern writing 有权
标题翻译：伺服模式写入的方法和装置
公开(公告)号：US08792199B2
公开(公告)日：2014-07-29
申请号：US13536992
申请日：2012-06-28
申请人： Da Woon Chung , Byoung Kul Ji
发明人： Da Woon Chung , Byoung Kul Ji
IPC分类号： G11B5/02
CPC分类号： G11B5/59638
摘要： Disclosed are servo pattern writing methods and apparatuses for performing the same. In one example, a method may include providing a plurality of disks having reference servo patterns written thereon; writing align patterns aligned with each other in a horizontal direction of the disk surface, on the plurality of disks, using a reference servo pattern of one of the plurality of disks; and writing a final servo pattern on each disk, using the align pattern written on each disk.
摘要翻译：公开了用于执行它们的伺服模式写入方法和装置。在一个示例中，方法可以包括提供其上写有参考伺服模式的多个盘; 使用所述多个盘之一的参考伺服图案，在所述多个盘上在所述盘表面的水平方向上对准的对准图案; 并使用写在每个磁盘上的对齐模式在每个磁盘上写入最终的伺服模式。

8. 发明申请

US20100284107A1 METHOD OF CONTROLLING FLYING HEIGHT OF MAGNETIC HEAD AND DISK DRIVE USING THE METHOD 失效
标题翻译：使用该方法控制磁头和磁盘驱动器的飞行高度的方法
公开(公告)号：US20100284107A1
公开(公告)日：2010-11-11
申请号：US12774872
申请日：2010-05-06
申请人： Ho-chul Shin , Da-woon Chung
发明人： Ho-chul Shin , Da-woon Chung
IPC分类号： G11B21/02
CPC分类号： G11B5/6005 , G11B5/6064
摘要： The flying heights of magnetic heads of a disk drive are set using an FOD (flying on demand) method in a bank mode. A first signal for adjusting the flying height of a magnetic head is issued to each magnetic head and the value of the first signal is scaled by scale values set for the magnetic heads, respectively, with one of the scale values differing from the others. The value of the first signal is changed until the magnetic head associated with the scale value different from the others touches down. A flying height for the magnetic head which touched down is determined based on the value of the first signal at the time of touch-down. The process is repeated, however with a different bank of scale values each time and set in such a way as to cause the sequential touch-down of the remaining magnetic heads, and determinations of flying heights for the magnetic heads.
摘要翻译：磁盘驱动器的磁头的飞行高度使用FOD（按需飞行）方式以存储模式设置。用于调整磁头的飞行高度的第一信号被发送到每个磁头，并且第一信号的值分别由对于磁头设置的刻度值缩放，其中一个刻度值与其他磁头之一不同。改变第一个信号的值，直到与不同于其他刻度的值相关联的磁头接触。基于触摸时的第一信号的值，确定触头的磁头的飞行高度。重复该过程，但是每次都具有不同的刻度值组，并且以这样一种方式设置，以使得剩余磁头顺序地向下触摸，以及确定磁头的飞行高度。

9. 发明申请

US20090284859A1 DATA STORAGE DEVICE HAVING DIFFERENT CONTROL INFORMATION IN DIFFERENT AREAS AND METHOD OF PROVIDING AND EMPLOYING THE SAME 审中-公开
标题翻译：在不同领域具有不同控制信息的数据存储设备及其提供和使用方法
公开(公告)号：US20090284859A1
公开(公告)日：2009-11-19
申请号：US12434104
申请日：2009-05-01
申请人： Da-woon CHUNG , Dong-wook LEE
发明人： Da-woon CHUNG , Dong-wook LEE
IPC分类号： G11B20/10 , G11B5/82
CPC分类号： G11B5/59627 , G11B20/1217 , G11B2020/1284 , G11B2220/2516
摘要： A data storage device, such as a disk drive unit, includes at least one disk for storing data therein. The disk is divided into a plurality of tracks. The disk has at least a first set of tracks that each have stored therein at least one repeatable runout correction code for at least one area of the track, and a second set of tracks that each do not have stored therein any repeatable runout correction codes.
摘要翻译：诸如盘驱动器单元的数据存储设备包括用于在其中存储数据的至少一个盘。盘被分成多个轨道。盘具有至少第一组轨道，每组轨道各自在其中存储有至少一个可重复的轨迹修正码，用于轨迹的至少一个区域，以及第二组轨道，其中每个轨道中没有存储任何可重复的跳动校正码。

10. 发明授权

US07359140B2 Method and apparatus of acceleration-based track seeking servo control of disk drive 失效
标题翻译：基于加速度轨迹寻找磁盘驱动器伺服控制的方法和装置
公开(公告)号：US07359140B2
公开(公告)日：2008-04-15
申请号：US10848167
申请日：2004-05-19
申请人： Da-woon Chung
发明人： Da-woon Chung
IPC分类号： G11B5/596
CPC分类号： G11B5/5547 , G11B5/5582 , G11B5/5586
摘要： A method and apparatus directed to acceleration-based track-seeking servo control of a disk drive, which minimize jerk generated at the start and end of track seeking, thereby reducing mechanical noise of the disc drive while shortening track-seek time. In the method directed to acceleration-based track seeking servo control of a disk drive, a transducer is moved to a target track by a track seeking control using an acceleration trajectory of a function where acceleration change is zero at the start and end of track seeking.
摘要翻译：一种针对磁盘驱动器的基于加速度的追踪伺服控制的方法和装置，其最小化在磁道搜索的开始和结束时产生的冲击，从而在缩短磁道搜索时间的同时减少磁盘驱动器的机械噪声。在针对磁盘驱动器的基于加速度的磁道寻求伺服控制的方法中，通过使用轨迹搜索控制的加速度轨迹将传感器移动到目标轨道，该加速轨迹在轨迹寻找的开始和结束时加速度变化为零。

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