公开(公告)号：US07038870B2

公开(公告)日：2006-05-02

申请号：US10691757

申请日：2003-10-22

Applicant: Hiroaki Suzuki ,  Noriaki Sato ,  Michiya Kazusawa ,  Hideo Asano

Inventor： Hiroaki Suzuki ,  Noriaki Sato ,  Michiya Kazusawa ,  Hideo Asano

IPC: G11B5/02 ,  G11B5/09

CPC classification number: G11B5/012 ,  G11B2005/001 ,  G11B2005/0013

Abstract: A data storage device, data write method, and program to avoid extra power consumption and suppress a write error that may result from voltage variations. To write data onto a magnetic disk, a write circuit generates a write current that is to be supplied to a write head. The write circuit operates on a positive power supply voltage provided by a host computer, and on a negative power supply voltage generated by a programmable DC—DC converter mounted on a hard disk drive's card. The magnitude of the negative power supply voltage generated by the programmable DC—DC converter is varied in accordance with the temperature surrounding the magnetic disk. Further, the magnitude of the negative power supply voltage generated by the programmable DC—DC converter is varied in accordance with the magnitude of the positive power supply voltage supplied from the host computer.

Abstract translation: 数据存储设备，数据写入方法和程序，以避免额外的功耗并抑制可能由电压变化引起的写入错误。 为了将数据写入磁盘，写入电路产生要写入写入头的写入电流。 写入电路由主机提供的正电源电压和由安装在硬盘驱动器卡上的可编程DC-DC转换器产生的负电源电压进行操作。 由可编程DC-DC转换器产生的负电源电压的大小根据磁盘周围的温度而变化。 此外，由可编程DC-DC转换器产生的负电源电压的大小根据从主计算机提供的正电源电压的大小而变化。

公开(公告)号：US08259406B2

公开(公告)日：2012-09-04

申请号：US12964543

申请日：2010-12-09

Applicant: Michiya Kazusawa ,  Masayuki Kurita ,  Kenji Kuroki ,  Yoshihiko Maeda

Inventor： Michiya Kazusawa ,  Masayuki Kurita ,  Kenji Kuroki ,  Yoshihiko Maeda

IPC: G11B5/09

CPC classification number: G11B5/59616 ,  G11B5/3136 ,  G11B5/40 ,  G11B5/6064

Abstract: A disk drive including a sensor element that senses contact between a head slider and a disk, a head integrated circuit (IC) comprising an amplification circuit section that amplifies a signal of the head slider, a controller IC comprising a controller that accesses a register of the head IC for controlling the head IC, and an identification section, within the head IC, that determines a contact frequency of the contact by the sensor element by using a timing control signal of the controller IC.

Abstract translation: 一种磁盘驱动器，包括感测磁头滑动器和磁盘盘之间的接触的传感器元件，包括放大电路部分的头部集成电路（IC），其放大磁头滑动器的信号;控制器IC，包括：控制器， 用于控制头IC的头IC，以及头IC内的识别部，其通过使用控制器IC的定时控制信号确定传感器元件的接触的接触频率。

公开(公告)号：US20110141603A1

公开(公告)日：2011-06-16

申请号：US12964543

申请日：2010-12-09

Applicant: Michiya KAZUSAWA ,  Masayuki Kurita ,  Kenji Kuroki ,  Yoshihiko Maeda

Inventor： Michiya KAZUSAWA ,  Masayuki Kurita ,  Kenji Kuroki ,  Yoshihiko Maeda

IPC: G11B5/09

CPC classification number: G11B5/59616 ,  G11B5/3136 ,  G11B5/40 ,  G11B5/6064

Abstract: A disk drive including a sensor element that senses contact between a head slider and a disk, a head integrated circuit (IC) comprising an amplification circuit section that amplifies a signal of the head slider, a controller IC comprising a controller that accesses a register of the head IC for controlling the head IC, and an identification section, within the head IC, that determines a contact frequency of the contact by the sensor element by using a timing control signal of the controller IC.

Abstract translation: 一种磁盘驱动器，包括感测磁头滑动器和磁盘盘之间的接触的传感器元件，包括放大电路部分的头部集成电路（IC），其放大磁头滑动器的信号;控制器IC，包括：控制器， 用于控制头IC的头IC，以及头IC内的识别部，其通过使用控制器IC的定时控制信号确定传感器元件的接触的接触频率。