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1. 发明申请

US20050117245A1 Apparatus and method for unlatching a head within a data storage device 失效
标题翻译：用于在数据存储设备内解锁头的装置和方法
公开(公告)号：US20050117245A1
公开(公告)日：2005-06-02
申请号：US10986581
申请日：2004-11-12
申请人： Cheol-Hoon Park , Kwang-Jo Jung , Sang-Hoon Chu , Yong-Gwon Lee , Chul Park
发明人： Cheol-Hoon Park , Kwang-Jo Jung , Sang-Hoon Chu , Yong-Gwon Lee , Chul Park
IPC分类号： G11B21/12 , G11B5/54 , G11B21/02 , G11B5/596
CPC分类号： G11B5/54 , G11B21/12
摘要： For unlatching a head within a data storage device, such as a HDD (hard disc drive), a VCM (voice coil motor) amplifier with a switch is used for applying at least one cycle of an acceleration current pulse to a voice coil motor (VCM) for unlatching the head during an acceleration time zone. An analog to digital converter samples a characteristic of the VCM for indicating a speed of the head during the acceleration time zone. An unlatch controller terminates the acceleration time zone when the speed of the head is higher than a threshold speed, for more stable operation of the head but with guarantee of unlatching, regardless of the latch force within the HDD.
摘要翻译：为了解锁诸如HDD（硬盘驱动器）的数据存储设备内的磁头，具有开关的VCM（音圈电机）放大器用于将至少一个加速电流脉冲的周期施加到音圈电机（ VCM），用于在加速时区内解锁头。模数转换器对VCM的特性进行采样，以在加速时间段期间指示磁头的速度。当头部的速度高于阈值速度时，解锁控制器终止加速时间段，以便头部的更稳定的操作，但是保证不解锁，而与HDD内的锁定力无关。

2. 发明授权

US07145743B2 Apparatus and method for unlatching a head within a data storage device 失效
标题翻译：用于在数据存储设备内解锁头的装置和方法
公开(公告)号：US07145743B2
公开(公告)日：2006-12-05
申请号：US10986581
申请日：2004-11-12
申请人： Cheol-Hoon Park , Kwang-Jo Jung , Sang-Hoon Chu , Yong-Gwon Lee , Chul Park
发明人： Cheol-Hoon Park , Kwang-Jo Jung , Sang-Hoon Chu , Yong-Gwon Lee , Chul Park
IPC分类号： G11B21/02
CPC分类号： G11B5/54 , G11B21/12
摘要： For unlatching a head within a data storage device, such as a HDD (hard disc drive), a VCM (voice coil motor) amplifier with a switch is used for applying at least one cycle of an acceleration current pulse to a voice coil motor (VCM) for unlatching the head during an acceleration time zone. An analog to digital converter samples a characteristic of the VCM for indicating a speed of the head during the acceleration time zone. An unlatch controller terminates the acceleration time zone when the speed of the head is higher than a threshold speed, for more stable operation of the head but with guarantee of unlatching, regardless of the latch force within the HDD.
摘要翻译：为了解锁诸如HDD（硬盘驱动器）的数据存储设备内的磁头，具有开关的VCM（音圈电机）放大器用于将至少一个加速电流脉冲的周期施加到音圈电机（ VCM），用于在加速时区内解锁头。模数转换器对VCM的特性进行采样，以在加速时间段期间指示磁头的速度。当头部的速度高于阈值速度时，解锁控制器终止加速时间段，以便头部的更稳定的操作，但是保证不解锁，而与HDD内的锁定力无关。

3. 发明授权

US07489467B2 Method for measuring track width of hard disk drive 失效
标题翻译：测量硬盘驱动器磁道宽度的方法
公开(公告)号：US07489467B2
公开(公告)日：2009-02-10
申请号：US11699991
申请日：2007-01-31
申请人： Jae-Hyeong Kim , Yong-Gwon Lee , Sang-Hoon Chu , Cheol-Hoon Park
发明人： Jae-Hyeong Kim , Yong-Gwon Lee , Sang-Hoon Chu , Cheol-Hoon Park
IPC分类号： G11B21/02 , G11B5/596
CPC分类号： G11B27/36 , G11B2220/2516
摘要： In a method of measuring track widths in a hard disk drive a plurality of estimation values are calculated based on differences in intensity between a plurality first measurement signals produced in relation to a head of the hard disk drive based on a plurality of burst signals stored in servo sectors of a track when the head moves along the track on a first side of a center of the track, and a plurality of second measurement signals produced in relation to the head of the hard disk drive based on the plurality of burst signals when the head moves along the track on a second side of the center of the track opposite the first side. The estimation values are then normalized, and excessive variation in the track widths is detected based on the normalized estimation values.
摘要翻译：在测量硬盘驱动器中的磁道宽度的方法中，基于存储在硬盘驱动器中的多个突发信号，基于与硬盘驱动器的磁头相关的多个第一测量信号之间的强度差来计算多个估计值当磁头沿轨道的中心的第一侧上的轨道移动时轨道的伺服扇区，以及当基于多个突发信号时相对于硬盘驱动器的磁头产生的多个第二测量信号头部沿轨道的中心的第二侧沿第一侧移动。然后将估计值归一化，并且基于归一化的估计值来检测轨道宽度的过度变化。

4. 发明申请

US20070188903A1 Method for measuring track width of hard disk drive 失效
标题翻译：测量硬盘驱动器的磁道宽度的方法
公开(公告)号：US20070188903A1
公开(公告)日：2007-08-16
申请号：US11699991
申请日：2007-01-31
申请人： Jae-Hyeong Kim , Yong-Gwon Lee , Sang-Hoon Chu , Cheol-Hoon Park
发明人： Jae-Hyeong Kim , Yong-Gwon Lee , Sang-Hoon Chu , Cheol-Hoon Park
IPC分类号： G11B27/36
CPC分类号： G11B27/36 , G11B2220/2516
摘要： In a method of measuring track widths in a hard disk drive a plurality of estimation values are calculated based on differences in intensity between a plurality first measurement signals produced in relation to a head of the hard disk drive based on a plurality of burst signals stored in servo sectors of a track when the head moves along the track on a first side of a center of the track, and a plurality of second measurement signals produced in relation to the head of the hard disk drive based on the plurality of burst signals when the head moves along the track on a second side of the center of the track opposite the first side. The estimation values are then normalized, and excessive variation in the track widths is detected based on the normalized estimation values.
摘要翻译：在测量硬盘驱动器中的磁道宽度的方法中，基于存储在硬盘驱动器中的多个突发信号，基于与硬盘驱动器的磁头相关的多个第一测量信号之间的强度差来计算多个估计值当磁头沿轨道的中心的第一侧上的轨道移动时轨道的伺服扇区，以及当基于多个突发信号时相对于硬盘驱动器的磁头产生的多个第二测量信号头部沿轨道的中心的第二侧沿第一侧移动。然后将估计值归一化，并且基于归一化的估计值来检测轨道宽度的过度变化。

5. 发明授权

US07605994B2 Multiple sinusoidal seek servo system for reducing seek acoustics and seek time in hard disk drives 有权
标题翻译：多重正弦寻道伺服系统，用于减少寻求声学和寻找硬盘驱动器的时间
公开(公告)号：US07605994B2
公开(公告)日：2009-10-20
申请号：US11528960
申请日：2006-09-27
申请人： Chang-Ik Kang , Young-Hoon Kim , Sang-Hoon Chu
发明人： Chang-Ik Kang , Young-Hoon Kim , Sang-Hoon Chu
IPC分类号： G11B21/04
CPC分类号： G11B5/5526
摘要： A hard disk drive that includes a voice coil motor controlled by a servo. The servo provides a driving signal that has multiple sinusoidal waveforms. The multi-sinusoidal waveforms minimize seek time and vibrations in the drive.
摘要翻译：包括由伺服控制的音圈电机的硬盘驱动器。伺服器提供具有多个正弦波形的驱动信号。多正弦波形可以减少驱动器中的寻道时间和振动。

6. 发明申请

US20080106817A1 Multiple sinusoidal seek servo system for reducing seek acoustics and seek time in hard disk drives 有权
标题翻译：多重正弦寻道伺服系统，用于减少寻求声学和寻找硬盘驱动器的时间
公开(公告)号：US20080106817A1
公开(公告)日：2008-05-08
申请号：US11528960
申请日：2006-09-27
申请人： Chang-Ik Kang , Young-Hoon Kim , Sang-Hoon Chu
发明人： Chang-Ik Kang , Young-Hoon Kim , Sang-Hoon Chu
IPC分类号： G11B5/596
CPC分类号： G11B5/5526
摘要： A hard disk drive that includes a voice coil motor controlled by a servo. The servo provides a driving signal that has multiple sinusoidal waveforms. The multi-sinusoidal waveforms minimize seek time and vibrations in the drive.
摘要翻译：包括由伺服控制的音圈电机的硬盘驱动器。伺服器提供具有多个正弦波形的驱动信号。多正弦波形可以减少驱动器中的寻道时间和振动。

7. 发明申请

US20060103969A1 System and apparatus for position error signal linearization 审中-公开
标题翻译：用于位置误差信号线性化的系统和装置
公开(公告)号：US20060103969A1
公开(公告)日：2006-05-18
申请号：US10987044
申请日：2004-11-12
申请人： Sang-Hoon Chu , Young-Hoon Kim , Cheol Park , Kang Lee
发明人： Sang-Hoon Chu , Young-Hoon Kim , Cheol Park , Kang Lee
IPC分类号： G11B5/596 , G11B5/55
CPC分类号： G11B5/59627
摘要： A hard disk drive that utilizes a plurality of integrated gain compensation values to correct a non-linear position error signal (PES) function of the drive. The gain compensation values are generated, integrated and stored during an initial burn-in process of the drive. The PES is used in a servo loop to position a head relative to a track of a disk. The PES may have a non-linear function such that the signal is not representative of the actual position of the head. The integrated gain compensation values are used to correct the non-linear function so that the PES more accurately reflects the position of the head relative to the track.
摘要翻译：利用多个积分增益补偿值来校正驱动器的非线性位置误差信号（PES）功能的硬盘驱动器。增益补偿值在驱动器的初始老化过程中生成，积分和存储。 PES在伺服回路中用于相对于盘的轨道定位头部。 PES可以具有非线性功能，使得信号不代表头部的实际位置。积分增益补偿值用于校正非线性函数，使得PES更准确地反映头相对于轨道的位置。

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