公开(公告)号：US20110128648A1

公开(公告)日：2011-06-02

申请号：US12843723

申请日：2010-07-26

申请人： Toru EZAWA ,  Shuichi KOJIMA ,  Masahide KANEGAE ,  Kenichiro YAMADA ,  Katsuhiko KOUI ,  Masayuki TAKAGISHI

发明人： Toru EZAWA ,  Shuichi KOJIMA ,  Masahide KANEGAE ,  Kenichiro YAMADA ,  Katsuhiko KOUI ,  Masayuki TAKAGISHI

IPC分类号： G11B21/02

CPC分类号： G11B5/09 ,  G11B5/02 ,  G11B5/1278 ,  G11B5/314 ,  G11B2005/0005 ,  G11B2005/0024 ,  G11B2220/2516

摘要： According to one embodiment, an apparatus for controlling a head includes a transmitting module and a controller. The transmitting module is configured to transmit a write signal to a magnetic head having a spin torque oscillator at the time of recording data. The controller is configured to supply a drive signal that has a level higher than the ordinary level for a prescribed effective time, to the spin-torque oscillator in response to an input write gate that instructs the recording of data. During a period other than prescribed effective time, the controller supplies a drive signal having the ordinary level to the spin-torque oscillator.

摘要翻译： 根据一个实施例，一种用于控制头部的装置包括发射模块和控制器。 发送模块被配置为在记录数据时向具有自旋转矩振荡器的磁头发送写入信号。 控制器被配置为响应于指示数据记录的输入写入门，向自旋转矩振荡器提供具有高于普通电平的电平达到规定有效时间的驱动信号。 在规定的有效时间以外的期间，控制器向自旋转矩振荡器提供具有普通电平的驱动信号。

公开(公告)号：US20110317302A1

公开(公告)日：2011-12-29

申请号：US13048297

申请日：2011-03-15

申请人： Yuji SAKAI ,  Kazuhito SHIMOMURA ,  Masahide KANEGAE

发明人： Yuji SAKAI ,  Kazuhito SHIMOMURA ,  Masahide KANEGAE

IPC分类号： G11B27/36

CPC分类号： G11B5/6029 ,  G11B5/607

摘要： According to one embodiment, a disk storage apparatus includes a read module, a measuring module, and a compensating module. The read module is configured to read first and second signals recorded on a disk, from which to measure the flying height of a head. The measuring module is configured to calculate the flying height of the head from the first and second measurement signals read by the read module. The compensating module is configured to use the data representing the flying height representing error resulting from superparamagnetic effect, thereby compensating for the flying height measured by the measuring module.

摘要翻译： 根据一个实施例，盘存储装置包括读取模块，测量模块和补偿模块。 读取模块被配置为读取记录在盘上的第一和第二信号，以测量头的飞行高度。 测量模块被配置为从读取模块读取的第一和第二测量信号计算头部的飞行高度。 补偿模块被配置为使用表示由超顺磁效应导致的飞行高度的数据，从而补偿由测量模块测量的飞行高度。

公开(公告)号：US20090027800A1

公开(公告)日：2009-01-29

申请号：US12179104

申请日：2008-07-24

申请人： Tohru IWAMOTO ,  Masahide KANEGAE

发明人： Tohru IWAMOTO ,  Masahide KANEGAE

IPC分类号： G11B21/02

CPC分类号： G11B19/041 ,  G11B5/6064 ,  G11B5/607

摘要： According to an aspect of an embodiment, a storage apparatus includes a judgment unit which judges the clearance between a head and a recording medium. A mode switcher switches from a regular write mode in which data is written on the medium to a write verification mode in which error is checked by reading the data immediately after writing on the medium, where the judgment unit detects a clearance change. A heater control value adjustor corrects for errors detected in the write verification mode by changing a prescribed heater control value for the heater by executing write verifications. An access processor controls the clearance between the head and the medium by heating the head according to the adjusted heater control value, to compensate for operational variables such as low atmospheric pressure.

摘要翻译： 根据实施例的一个方面，一种存储装置包括判断头和记录介质之间的间隙的判断单元。 模式切换器从其中将数据写入介质的常规写入模式切换到写入验证模式，其中通过在写入介质之后立即读取数据来检查错误，其中判断单元检测到间隙改变。 加热器控制值调节器通过执行写入验证来改变加热器的规定加热器控制值来校正在写入验证模式中检测到的错误。 访问处理器通过根据调节的加热器控制值加热头部来控制头部和介质之间的间隙，以补偿诸如低大气压的操作变量。