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1. 发明申请

US20080100950A1 Control device, control method, and storage apparatus 失效
标题翻译：控制装置，控制方法和存储装置
公开(公告)号：US20080100950A1
公开(公告)日：2008-05-01
申请号：US11895464
申请日：2007-08-24
申请人： Nobuyuki Mitsunaga , Masahide Kanegae , Hiroyuki Tanaka , Isamu Tomita , Masao Kondo
发明人： Nobuyuki Mitsunaga , Masahide Kanegae , Hiroyuki Tanaka , Isamu Tomita , Masao Kondo
IPC分类号： G11B21/02
CPC分类号： G11B19/041 , G11B5/6064 , G11B5/607
摘要： Upon recording, a clearance control unit performs preheating by an added control value (B+R) of a base heater control value B and an adjustment heater control value R and switches that to merely the base heater control value B when it reaches a target sector so as to perform write. Upon reproduction, preheating is performed by the added control value (B+R), and the added control value (B+R) is maintained when it reaches a target sector so as to perform read. A correction processing unit 46 detects contact (touchdown) between the head and a medium surface while gradually increasing the adjustment heater control value R from a predetermined initial value Ro, sets a value, which is obtained by subtracting a heater control value Sp converted from a minimum clearance and the initial value Ro from a contact heater control value Rtd, as the base heater control value B, and sets the initial value Ro as the adjustment heater control value R. Write assist adjustment in which the measured adjustment heater control value R is adjusted to a heater control value that improves characteristic deterioration immediately after recording is started wherein preheating is switched to write heating is performed.
摘要翻译：在记录时，间隙控制单元通过基础加热器控制值B的附加控制值（B + R）和调节加热器控制值R执行预热，并且当其到达目标扇区时将其仅切换到基础加热器控制值B 以便执行写入。在再现时，通过附加的控制值（B + R）进行预热，并且当其到达目标扇区时保持附加的控制值（B + R）以便进行读取。校正处理单元46在从预定的初始值Ro逐渐增加调节加热器控制值R的同时检测头部和介质表面之间的接触（触地），设定通过减去从作为基础加热器控制值B，将来自接触加热器控制值Rtd的最小间隙和初始值Ro设定为初始值Ro作为调节加热器控制值R.写入辅助调整，其中测量的调节加热器控制值R为被调整到加热器控制值，其在开始其中预热切换到写入加热的记录开始之后立即改善特性劣化。

2. 发明授权

US07492543B2 Control device, control method, and storage apparatus for controlling read head and write head clearance 失效
标题翻译：用于控制读头和写头间隙的控制装置，控制方法和存储装置
公开(公告)号：US07492543B2
公开(公告)日：2009-02-17
申请号：US11895464
申请日：2007-08-24
申请人： Nobuyuki Mitsunaga , Masahide Kanegae , Hiroyuki Tanaka , Isamu Tomita , Masao Kondo
发明人： Nobuyuki Mitsunaga , Masahide Kanegae , Hiroyuki Tanaka , Isamu Tomita , Masao Kondo
IPC分类号： G11B21/02
CPC分类号： G11B19/041 , G11B5/6064 , G11B5/607
摘要： Upon recording, a clearance control unit performs preheating by an added control value (BR) of a base heater control value B and an adjustment heater control value R and switches that to value B when it reaches a target sector to perform write. Upon reproduction, preheating is performed by the value (BR) and the value (BR) is maintained when it reaches a target sector to perform read. A correction processing unit detects contact between the head and a medium surface while increasing the value R from a predetermined initial value Ro, and sets a new calculated base heater control value B, and value Ro as the adjustment heater control value R. Write assist adjustment in which the measured adjustment heater control value R is adjusted to a heater control value that improves characteristic deterioration immediately after recording is started wherein preheating is switched to write heating is performed.
摘要翻译：在记录时，间隙控制单元通过基本加热器控制值B的附加控制值（BR）和调节加热器控制值R执行预热，并且当其到达目标扇区以进行写入时切换到值B. 在再现时，通过值（BR）进行预热，并且当其到达目标扇区以进行读取时，维持值（BR）。校正处理单元在从预定的初始值Ro增加值R的同时，检测头与介质面之间的接触，并将新的计算的基础加热器控制值B和值Ro设置为调节加热器控制值R.写入辅助调整其中测量的调节加热器控制值R被调节到加热器控制值，该加热器控制值在开始其中预热被切换到写入加热的记录开始之后立即改善特性劣化。

3. 发明授权

US07808738B2 Information storage apparatus for adjusting flying height of head 失效
标题翻译：用于调节头部飞行高度的信息存储装置
公开(公告)号：US07808738B2
公开(公告)日：2010-10-05
申请号：US12212238
申请日：2008-09-17
申请人： Nobuyuki Mitsunaga , Noriaki Takemura
发明人： Nobuyuki Mitsunaga , Noriaki Takemura
IPC分类号： G11B21/02
CPC分类号： G11B5/6029 , G11B5/6064 , G11B5/607 , G11B19/041 , G11B19/046
摘要： A storage apparatus including a motor for rotating a medium and a head that has a heater. The clearance between the medium and the head is controlled by expansion of the head by the heater. Some embodiments could include a monitor configured to monitor atmospheric pressure, and a controller configured to control the heater in accordance with the atmospheric pressure so as to control the clearance. Some embodiments could include a monitor configured to monitor a driving current flowing through the motor, and a controller configured to control the heater in accordance with the driving current so as to control the clearance.
摘要翻译：一种存储装置，包括用于旋转介质的马达和具有加热器的头部。介质和头部之间的间隙由加热器的头部膨胀来控制。一些实施例可以包括被配置为监测大气压力的监视器，以及被配置为根据大气压控制加热器以控制间隙的控制器。一些实施例可以包括监视器，其被配置为监视流过马达的驱动电流，以及控制器，其被配置为根据驱动电流来控制加热器，以便控制间隙。

4. 发明授权

US06667613B1 Method of measuring resistance of magnetoresistive element 失效
标题翻译：磁阻元件电阻测量方法
公开(公告)号：US06667613B1
公开(公告)日：2003-12-23
申请号：US09661759
申请日：2000-09-14
申请人： Nobuyuki Mitsunaga
发明人： Nobuyuki Mitsunaga
IPC分类号： H01L4308
CPC分类号： G11B5/012 , G11B5/3903 , G11B5/455 , G11B2005/0016 , G11B2005/0018
摘要： An amplifier amplifies a potential difference appearing at sense channels. A resistor of a given resistance value and a magnetoresistive element are connected to the amplifier. First and second inspection currents of difference values are supplied to the resistor. The amplifier thus outputs a first and second voltages. The amplification characteristic or gain of the amplifier can be calculated based on the measured first and second voltages, the values of the inspection currents and the resistance of the resistor. A third inspection current is then supplied to the magnetoresistive element. The output voltage is likewise measured. The value of the third inspection current and the value of the measured output voltage in addition to the amplification characteristic enable a highly accurate determination of the value corresponding to the effective resistance of the magnetoresistive element.
摘要翻译：放大器放大出现在感测通道的电位差。给定电阻值的电阻和磁阻元件连接到放大器。差分值的第一和第二检查电流被提供给电阻器。因此，放大器输出第一和第二电压。可以基于测量的第一和第二电压，检查电流的值和电阻器的电阻来计算放大器的放大特性或增益。然后将第三检查电流提供给磁阻元件。输出电压同样被测量。除了放大特性之外，第三检查电流的值和测量的输出电压的值使得能够高度准确地确定与磁阻元件的有效电阻相对应的值。

5. 发明申请

US20090097151A1 INFORMATION STORAGE APPARATUS FOR ADJUSTING FLYING HEIGHT OF HEAD 失效
标题翻译：用于调节头部飞行高度的信息存储装置
公开(公告)号：US20090097151A1
公开(公告)日：2009-04-16
申请号：US12212238
申请日：2008-09-17
申请人： Nobuyuki Mitsunaga , Noriaki Takemura
发明人： Nobuyuki Mitsunaga , Noriaki Takemura
IPC分类号： G11B21/02
CPC分类号： G11B5/6029 , G11B5/6064 , G11B5/607 , G11B19/041 , G11B19/046
摘要： According to an aspect of an embodiment, a storage apparatus has a motor for rotating a medium, a head for writing data into or reading data from the medium, the head having a space control element for changing a flying height of the head over the medium and a controller for controlling the space control element so as to control the flying height of the head and the medium when writing data into or reading data from the medium, for monitoring a value of a driving current flowing through the motor, for detecting an error by comparison of data written into the medium and data read out from the medium, and for changing the flying height of the head by controlling the space control element in accordance with the monitored driving current when an error is detected.
摘要翻译：根据实施例的一个方面，存储装置具有用于旋转介质的马达，用于将数据写入介质或从介质读取数据的头部，头部具有用于改变头部在介质上的飞行高度的空间控制元件以及控制器，用于控制空间控制元件，以便在将数据写入或从介质读取数据时控制头和介质的飞行高度，以监视流过电机的驱动电流的值，以检测错误通过比较写入介质的数据和从介质读出的数据，并且通过在检测到错误时根据监视的驱动电流控制空间控制元件来改变头的飞行高度。

6. 发明授权

US6166872A Storage apparatus 失效
标题翻译：储存装置
公开(公告)号：US6166872A
公开(公告)日：2000-12-26
申请号：US157707
申请日：1998-09-21
申请人： Hiroshi Uno , Nobuyuki Mitsunaga
发明人： Hiroshi Uno , Nobuyuki Mitsunaga
IPC分类号： G11B5/012 , G11B5/035 , G11B5/09 , G11B5/48 , H05K1/11
CPC分类号： G11B5/09 , G11B5/012 , G11B5/035 , G11B5/486 , H05K1/118
摘要： A read signal from a head is amplified by a read amplifier disposed on a head actuator and is fed via a pair of read only transmission paths through an FPC to a control board. The read only transmission paths are provided with a compensation circuit consisting of an inductance and a resistor which are connected in parallel. The compensation circuit compensates for degradation of frequency characteristics of a read signal attributable to stray capacitance of the FPC and to stray capacitance on the control board side.
摘要翻译：来自头部的读取信号由设置在头致动器上的读取放大器放大，并且经由一对只读传输路径通过FPC馈送到控制板。仅读传输路径设置有并联连接的由电感和电阻组成的补偿电路。补偿电路补偿归因于FPC的杂散电容的读取信号和控制板侧的杂散电容的频率特性的劣化。

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