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1. 发明专利

JP2007018731A Head gimbal assembly 有权
标题翻译： HEAD GIMBAL ASSEMBLY
公开(公告)号：JP2007018731A
公开(公告)日：2007-01-25
申请号：JP2006291068
申请日：2006-10-26
申请人： Hitachi Global Storage Technologies Inc , 株式会社日立グローバルストレージテクノロジーズ
发明人： SATO NAOKI , KURITA MASAYUKI , TOKUYAMA MIKIO , JO KINKOKU
IPC分类号： G11B21/21
摘要： PROBLEM TO BE SOLVED: To avoid adverse effect such as a crosstalk current to a reproducing head due to high-frequency current of a recording head or turning on/off of a heat generating resistor. SOLUTION: The head gimbal assembly includes: a magnetic head assembly 1 provided with the recording head 1-2, the reproducing head 1-1, and the heat generating resistor 1-3 controlling the fly height of a magnetic head; and a suspension for mounting the magnetic head assembly 1. The wiring HTx, GTx of the heat generating resistor is disposed so that wiring RxX, RxY of the reproducing head is disposed therebetween. The wiring of the heat generating resistor is disposed between the wiring of the recording head and wiring of the reproducing head. A current wave form or a voltage wave form to the heat generating resistor having the wiring disposed near the wiring of the reproducing head is the wave form having a time constant of ≥1 μsec. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了避免由于记录头的高频电流或发热电阻器的导通/截止引起的对再现头的串扰电流的不利影响。头万向架组件包括：设置有记录头1-2的磁头组件1，再现头1-1和控制磁头的飞行高度的发热电阻器1-3; 以及用于安装磁头组件1的悬架。发热电阻器的布线HTx，GTx被布置成使得再现头的布线RxX，RxY位于它们之间。发热电阻器的布线设置在记录头的布线和再现头的布线之间。具有布置在再现头的布线附近的布线的发热电阻器的电流波形或电压波形是具有≥1微秒的时间常数的波形。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2005078786A Magnetic disk device and servo pattern recording method therefor 审中-公开
标题翻译：磁盘设备及其伺服模式记录方法
公开(公告)号：JP2005078786A
公开(公告)日：2005-03-24
申请号：JP2003312233
申请日：2003-09-04
申请人： Hitachi Global Storage Technologies Inc , 株式会社日立グローバルストレージテクノロジーズ
发明人： ANNA HIROSHI , SATO NAOKI , HORISAKI MAKOTO
IPC分类号： G11B21/10 , G11B5/09 , G11B5/596 , G11B21/02
CPC分类号： G11B5/59633
摘要： PROBLEM TO BE SOLVED: To provide a magnetic disk device and a servo pattern recording method which allow a servo signal of high quality to be written without being affected by variation of a rotation speed during self-servo write.
SOLUTION: The magnetic disk device is provided with a disk 102, a head 103 provided with a recording conversion element for writing information on the disk and a reproducing conversion element for reading information, and an actuator for driving the head to a radial direction of the disk. A servo pattern 110 for head positioning is recorded on a recording surface of the disk. In the servo pattern 110, a pattern sector marker 208a for detecting a passage time of the head, a track ID code 209, and a burst pattern 210 for detecting the radial position of the head are recorded following a preamble 207a for PLL acquisition, and a second preamble 207b and a second sector marker 208b are consecutively arranged.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种磁盘装置和伺服模式记录方法，其允许在不影响自伺服写入期间的转速的变化的情况下写入高质量的伺服信号。解决方案：磁盘装置设置有盘102，设置有用于在盘上写入信息的记录转换元件的头103和用于读取信息的再现转换元件以及用于将头驱动到径向的致动器方向盘。用于头部定位的伺服图案110被记录在盘的记录表面上。在伺服图形110中，用于检测磁头的通过时间的图形扇区标记208a，用于检测磁头的径向位置的磁道ID码209和突发模式210被记录在用于PLL获取的前同步码207a之后，并且连续布置第二前同步码207b和第二扇区标记208b。版权所有（C）2005，JPO＆NCIPI

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