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1. 发明申请

US20080192379A1 Manufacturing method for magnetic disk drive 审中-公开
标题翻译：磁盘驱动器的制造方法
公开(公告)号：US20080192379A1
公开(公告)日：2008-08-14
申请号：US12011284
申请日：2008-01-24
申请人： Masayuki Kurita , Hideaki Tanaka , Noriaki Satoh , Toyomi Ohsawa , Toshiya Shiramatsu , Atsushi Yatagai , Satoshi Ohki , Hiroshi Ide , Hidekazu Kohira , Takehiko Hamaguchi
发明人： Masayuki Kurita , Hideaki Tanaka , Noriaki Satoh , Toyomi Ohsawa , Toshiya Shiramatsu , Atsushi Yatagai , Satoshi Ohki , Hiroshi Ide , Hidekazu Kohira , Takehiko Hamaguchi
IPC分类号： G11B5/48 , G11B5/56 , G11B5/60 , G11B21/21 , G01R31/01
CPC分类号： G11B5/455 , G11B5/3133 , G11B5/6029 , G11B5/607 , G11B5/6076 , Y10T29/49004
摘要： Embodiments of the present invention provide a process that monitors a magnetic playback signal while gradually increasing an electricity supply amount for a heater to thereby determine contact between a magnetic head slider and a magnetic disk medium. According to one embodiment, after components for configuring a magnetic recording/playback portion are assembled into a housing, magnetic information is played back on a specific track of a magnetic disk medium by using a playback element while gradually increasing an electricity supply amount for a heater of a magnetic head slider. An amplitude of a playback signal is measured at a plurality of portions along a circumferential direction of the track. Contact between the magnetic head slider and the magnetic disk medium is detected in accordance with an increase in variation in the measured amplitude. Then, a value obtained by subtracting an predetermined value of an electricity amount from an electricity amount in the event of detection of the contact is stored (set) as an appropriate electricity amount for the magnetic head slider into a storage portion.
摘要翻译：本发明的实施例提供了一种监视磁回放信号的过程，同时逐渐增加用于加热器的电力供应量，从而确定磁头滑块和磁盘介质之间的接触。根据一个实施例，在用于配置磁记录/重放部分的组件被组装到外壳中之后，通过使用回放元件在磁盘介质的特定轨道上回放磁信息，同时逐渐增加加热器的供电量的磁头滑块。沿着轨道的圆周方向的多个部分测量重放信号的幅度。根据测量幅度的变化的增加来检测磁头滑块和磁盘介质之间的接触。然后，通过从检测到接触的电量的电量中减去电量的预定值而获得的值作为用于磁头滑块的适当电量被存储（设置）到存储部分中。

2. 发明授权

US07864474B2 Disk drive and control method thereof 有权
标题翻译：磁盘驱动器及其控制方法
公开(公告)号：US07864474B2
公开(公告)日：2011-01-04
申请号：US11789866
申请日：2007-04-25
申请人： Noriaki Satoh , Toyomi Ohsawa , Yumi Nagano , Kouji Miyake , Yoshiaki Uji , Masayuki Kurita
发明人： Noriaki Satoh , Toyomi Ohsawa , Yumi Nagano , Kouji Miyake , Yoshiaki Uji , Masayuki Kurita
IPC分类号： G11B5/02
CPC分类号： G11B5/3133 , G11B5/6064 , G11B5/607 , G11B19/04
摘要： Embodiments in accordance with the present invention reduce the number of errors caused by the aged deterioration of a heater for adjusting the clearance between a head and a disk. According to one embodiment, a thermal fly height control (TFC) controller executes the measurement of a resistance value of a heater in a predetermined timing. The TFC controller judges whether or not the measured resistance value falls within a predetermined reference range. If the measured resistance value falls within the reference range, the processing ends without performing any other processing. If the measured resistance value goes out of the reference range, the TFC controller executes error handling processing in response to a resistance failure. As one of the error handling processing, the TFC controller notifies the host that the abnormality (resistance failure) has been detected in the resistance value of the TFC heater.
摘要翻译：根据本发明的实施例减少了用于调节头部和盘之间的间隙的加热器的老化劣化引起的误差的数量。根据一个实施例，热飞跃高度控制（TFC）控制器在预定定时执行加热器的电阻值的测量。 TFC控制器判断所测量的电阻值是否在预定的参考范围内。如果测量的电阻值落在参考范围内，则处理结束而不执行任何其它处理。如果测量的电阻值超出参考范围，则TFC控制器响应于电阻故障执行错误处理处理。作为错误处理处理之一，TFC控制器通知主机在TFC加热器的电阻值中检测到异常（电阻故障）。

3. 发明申请

US20080247079A1 Disk drive and control method thereof 有权
标题翻译：磁盘驱动器及其控制方法
公开(公告)号：US20080247079A1
公开(公告)日：2008-10-09
申请号：US11789866
申请日：2007-04-25
申请人： Noriaki Satoh , Toyomi Ohsawa , Yumi Nagano , Kouji Miyake , Yoshiaki Uji , Masayuki Kurita
发明人： Noriaki Satoh , Toyomi Ohsawa , Yumi Nagano , Kouji Miyake , Yoshiaki Uji , Masayuki Kurita
IPC分类号： G11B21/02
CPC分类号： G11B5/3133 , G11B5/6064 , G11B5/607 , G11B19/04
摘要： Embodiments in accordance with the present invention reduce the number of errors caused by the aged deterioration of a heater for adjusting the clearance between a head and a disk. According to one embodiment, a thermal fly height control (TFC) controller executes the measurement of a resistance value of a heater in a predetermined timing. The TFC controller judges whether or not the measured resistance value falls within a predetermined reference range. If the measured resistance value falls within the reference range, the processing ends without performing any other processing. If the measured resistance value goes out of the reference range, the TFC controller executes error handling processing in response to a resistance failure. As one of the error handling processing, the TFC controller notifies the host that the abnormality (resistance failure) has been detected in the resistance value of the TFC heater.
摘要翻译：根据本发明的实施例减少了用于调节头部和盘之间的间隙的加热器的老化劣化引起的误差的数量。根据一个实施例，热飞跃高度控制（TFC）控制器在预定定时执行加热器的电阻值的测量。 TFC控制器判断所测量的电阻值是否在预定的参考范围内。如果测量的电阻值落在参考范围内，则处理结束而不执行任何其它处理。如果测量的电阻值超出参考范围，则TFC控制器响应于电阻故障执行错误处理处理。作为错误处理处理之一，TFC控制器通知主机在TFC加热器的电阻值中检测到异常（电阻故障）。

4. 发明授权

US07630160B2 Magnetic disk drive, preamplifier for magnetic disk drive, flexible printed cable assembly for magnetic disk drive 失效
标题翻译：磁盘驱动器，用于磁盘驱动器的前置放大器，用于磁盘驱动器的柔性印刷电缆组件
公开(公告)号：US07630160B2
公开(公告)日：2009-12-08
申请号：US12006683
申请日：2008-01-04
申请人： Masayuki Kurita , Masashi Murai , Hideaki Tanaka , Noriaki Satoh , Hiroshi Fukuda , Tsukasa Fujimori
发明人： Masayuki Kurita , Masashi Murai , Hideaki Tanaka , Noriaki Satoh , Hiroshi Fukuda , Tsukasa Fujimori
IPC分类号： G11B15/18 , G11B33/14
CPC分类号： G11B33/121
摘要： Embodiments of the present invention help to improve the cost, mountability, and reliability of a magnetic disk drive that regulates a fly height of a magnetic head slider correspondingly to the operating altitude of the drive by using an air pressure sensor and a heater. According to one embodiment, a preamplifier is a semiconductor chip formed by three-dimensionally laminating thin film circuits on a bulk silicon wafer. An air pressure sensor is integrally formed on the semiconductor chip through a semiconductor process. The air pressure sensor is configured to include an isolating cavity, a diaphragm that deflecting in response to a change in a pressure difference between the isolating cavity and the outside, and lower and upper electrodes and for detecting variation in electrostatic capacitance. The preamplifier including the air pressure sensor integrally formed therein is attached to a flexible printed cable (FPC) to oppose the FPC. A through-hole is provided in a portion opposite the air pressure sensor of the FPC to introduce air pressure in an operating environment into a diaphragm of the air pressure sensor.
摘要翻译：本发明的实施例有助于提高磁盘驱动器的成本，安装性和可靠性，其通过使用空气压力传感器和加热器来调节磁头滑块的飞行高度，与驱动器的操作高度相对应。根据一个实施例，前置放大器是通过在体硅晶片上三维层叠薄膜电路而形成的半导体芯片。通过半导体工艺在半导体芯片上整体地形成气压传感器。空气压力传感器被构造成包括隔离腔，响应于隔离腔和外部之间的压差以及下部和上部电极的变化以及用于检测静电电容的变化而偏转的隔膜。包括一体地形成在其中的空气压力传感器的前置放大器附接到柔性印刷电缆（FPC）以与FPC相对。在与FPC的空气压力传感器相对的部分设置通孔，以将操作环境中的空气压力引入空气压力传感器的隔膜。

5. 发明申请

US20080273262A1 Magnetic disk drive, preamplifier for magnetic disk drive, flexible printed cable assembly for magnetic disk drive 失效
标题翻译：磁盘驱动器，用于磁盘驱动器的前置放大器，用于磁盘驱动器的柔性印刷电缆组件
公开(公告)号：US20080273262A1
公开(公告)日：2008-11-06
申请号：US12006683
申请日：2008-01-04
申请人： Masayuki Kurita , Masashi Murai , Hideaki Tanaka , Noriaki Satoh , Hiroshi Fukuda , Tsukasa Fujimori
发明人： Masayuki Kurita , Masashi Murai , Hideaki Tanaka , Noriaki Satoh , Hiroshi Fukuda , Tsukasa Fujimori
IPC分类号： G11B33/14
CPC分类号： G11B33/121
摘要： Embodiments of the present invention help to improve the cost, mountability, and reliability of a magnetic disk drive that regulates a fly height of a magnetic head slider correspondingly to the operating altitude of the drive by using an air pressure sensor and a heater. According to one embodiment, a preamplifier is a semiconductor chip formed by three-dimensionally laminating thin film circuits on a bulk silicon wafer. An air pressure sensor is integrally formed on the semiconductor chip through a semiconductor process. The air pressure sensor is configured to include an isolating cavity, a diaphragm that deflecting in response to a change in a pressure difference between the isolating cavity and the outside, and lower and upper electrodes and for detecting variation in electrostatic capacitance. The preamplifier including the air pressure sensor integrally formed therein is attached to a flexible printed cable (FPC) to oppose the FPC. A through-hole is provided in a portion opposite the air pressure sensor of the FPC to introduce air pressure in an operating environment into a diaphragm of the air pressure sensor.
摘要翻译：本发明的实施例有助于提高磁盘驱动器的成本，安装性和可靠性，其通过使用空气压力传感器和加热器来调节磁头滑块的飞行高度，与驱动器的操作高度相对应。根据一个实施例，前置放大器是通过在体硅晶片上三维层叠薄膜电路而形成的半导体芯片。通过半导体工艺在半导体芯片上整体地形成气压传感器。空气压力传感器被构造成包括隔离腔，响应于隔离腔和外部之间的压差以及下部和上部电极的变化以及用于检测静电电容的变化而偏转的隔膜。包括一体地形成在其中的空气压力传感器的前置放大器附接到柔性印刷电缆（FPC）以与FPC相对。在与FPC的空气压力传感器相对的部分设置通孔，以将操作环境中的空气压力引入空气压力传感器的隔膜。

6. 发明授权

US07969681B2 Disk drive and control method thereof 有权
标题翻译：磁盘驱动器及其控制方法
公开(公告)号：US07969681B2
公开(公告)日：2011-06-28
申请号：US11789626
申请日：2007-04-24
申请人： Noriaki Satoh , Toyomi Ohsawa , Yumi Nagano , Nobumasa Nishiyama
发明人： Noriaki Satoh , Toyomi Ohsawa , Yumi Nagano , Nobumasa Nishiyama
IPC分类号： G11B21/02
CPC分类号： G11B5/6064 , G11B5/6005
摘要： Embodiments in accordance with the present invention reduce the structural stress applied to a head, and to achieve the effective control, when the clearance between the head and a disk is adjusted by using a heater. According to one embodiment, the hard disk controller/microprocessing unit (HDC/MPU) controls a slew rate of a heater at the time of TFC (Thermal Fly height Control). In response to processing conditions, a HDC/MPU changes a slew rate of the output of electric current/voltage applied to the heater. This makes it possible to reduce the head stress, and to achieve the effective TFC. To be more specific, with reference to a temperature/slew rate table, the HDC/MPU changes a slew rate in response to the temperature in the read/write processing.
摘要翻译：根据本发明的实施例，通过使用加热器调节头部和盘片之间的间隙时，降低施加在头部上的结构应力，并实现有效的控制。根据一个实施例，硬盘控制器/微处理单元（HDC / MPU）在TFC（热飞行高度控制）时控制加热器的转换速率。响应于处理条件，HDC / MPU改变加到加热器上的电流/电压输出的转换速率。这使得可以减小头部应力，并实现有效的TFC。更具体地，参考温度/转换速率表，HDC / MPU根据读/写处理中的温度改变转换速率。

7. 发明授权

US07385777B2 Data storage device with heater, and control method therefor with timing control 失效
标题翻译：带加热器的数据存储装置及其具有定时控制的控制方法
公开(公告)号：US07385777B2
公开(公告)日：2008-06-10
申请号：US11514871
申请日：2006-09-01
申请人： Noriaki Satoh , Toyomi Ohsawa , Masaharu Kawamura , Hideki Ohzeki , Kazunari Tsuchimoto
发明人： Noriaki Satoh , Toyomi Ohsawa , Masaharu Kawamura , Hideki Ohzeki , Kazunari Tsuchimoto
IPC分类号： G11B21/02 , G11B5/596
CPC分类号： G11B5/3136 , G11B5/5547 , G11B5/6005 , G11B5/6064 , G11B5/607
摘要： Embodiments of the invention reduce a possibility that a head will collide with a medium when the clearance between the head and the medium is adjusted by using a medium, and sufficiently reduce the clearance even at an initial stage of accessing a data area. In one embodiment, a hard disk drive (HDD) keeps a heater in an OFF state for a period of time from the start of seek operation until the specified timing after a following mode starts. This prevents a head element from colliding with a magnetic disk, and also prevents flying properties from changing due to the deformation of the ABS. In the above specified timing, the heater is switched from OFF to ON. Specifically, for example, on completion of seek operation, in the timing in which a head arrives at a target track, or in the timing in which an HDC/MPU enters the following mode, the heater is turned ON.
摘要翻译：本发明的实施例减少了当通过使用介质来调整头部和介质之间的间隙时头部将与介质碰撞的可能性，并且即使在访问数据区域的初始阶段也足够地减小间隙。在一个实施例中，硬盘驱动器（HDD）将加热器保持在关闭状态，持续一段时间，从搜索操作开始直到在后续模式开始之后的指定定时。这样可防止头元件与磁盘碰撞，并且还防止由于ABS的变形引起的飞行性能的变化。在上述指定的时间，加热器从OFF切换到ON。具体地，例如，在寻道操作完成时，在头到达目标轨道的时刻，或者在HDC / MPU进入后续模式的定时中，加热器被接通。

8. 发明授权

US07369349B2 Data storage device with heater, and control method therefor involving different control modes 失效
标题翻译：具有加热器的数据存储装置及其控制方法涉及不同的控制模式
公开(公告)号：US07369349B2
公开(公告)日：2008-05-06
申请号：US11514813
申请日：2006-09-01
申请人： Noriaki Satoh , Masaharu Kawamura , Toyomi Ohsawa , Hideki Ohzeki , Kazunari Tsuchimoto
发明人： Noriaki Satoh , Masaharu Kawamura , Toyomi Ohsawa , Hideki Ohzeki , Kazunari Tsuchimoto
IPC分类号： G11B21/02 , G11B5/596
CPC分类号： G11B5/3136 , G11B5/6005 , G11B5/6029 , G11B5/6064
摘要： Embodiments of the invention reduce a possibility that a head will collide with a medium when the clearance between the head and the medium is adjusted by using a medium, and sufficiently reduce the clearance even at an initial stage of accessing a data area. In one embodiment, a hard disk drive (HDD) switches a heater from OFF to ON in the specified timing after a seek mode is switched to a following mode. Specifically, for example, on the completion of seek operation, in the timing in which a head arrives at a target track, or in the timing in which an HDC/MPU enters the following mode, the heater is turned ON, and this state is kept unchanged until access to the target sector is made.
摘要翻译：本发明的实施例减少了当通过使用介质来调整头部和介质之间的间隙时头部将与介质碰撞的可能性，并且即使在访问数据区域的初始阶段也足够地减小间隙。在一个实施例中，在寻找模式切换到后续模式之后，硬盘驱动器（HDD）在指定的定时将加热器从OFF切换到ON。具体地，例如，在寻道操作完成时，在头到达目标轨道的时刻，或者在HDC / MPU进入后续模式的时刻，加热器接通，该状态为保持不变，直到进入目标部门。

9. 发明申请

US20070247744A1 Disk drive and control method thereof 有权
标题翻译：磁盘驱动器及其控制方法
公开(公告)号：US20070247744A1
公开(公告)日：2007-10-25
申请号：US11789626
申请日：2007-04-24
申请人： Noriaki Satoh , Toyomi Ohsawa , Yumi Nagano , Nobumasa Nishiyama
发明人： Noriaki Satoh , Toyomi Ohsawa , Yumi Nagano , Nobumasa Nishiyama
IPC分类号： G11B21/02
CPC分类号： G11B5/6064 , G11B5/6005
摘要： Embodiments in accordance with the present invention reduce the structural stress applied to a head, and to achieve the effective control, when the clearance between the head and a disk is adjusted by using a heater. According to one embodiment, the hard disk controller/microprocessing unit (HDC/MPU) controls a slew rate of a heater at the time of TFC (Thermal Fly height Control). In response to processing conditions, a HDC/MPU changes a slew rate of the output of electric current/voltage applied to the heater. This makes it possible to reduce the head stress, and to achieve the effective TFC. To be more specific, with reference to a temperature/slew rate table, the HDC/MPU changes a slew rate in response to the temperature in the read/write processing.
摘要翻译：根据本发明的实施例，通过使用加热器调节头部和盘片之间的间隙时，降低施加在头部上的结构应力，并实现有效的控制。根据一个实施例，硬盘控制器/微处理单元（HDC / MPU）在TFC（热飞行高度控制）时控制加热器的转换速率。响应于处理条件，HDC / MPU改变加到加热器上的电流/电压输出的转换速率。这使得可以减小头部应力，并实现有效的TFC。更具体地，参考温度/转换速率表，HDC / MPU根据读/写处理中的温度改变转换速率。

10. 发明申请

US20070053103A1 Data storage device with heater, and control method therefor involving different control modes 失效
标题翻译：具有加热器的数据存储装置及其控制方法涉及不同的控制模式
公开(公告)号：US20070053103A1
公开(公告)日：2007-03-08
申请号：US11514813
申请日：2006-09-01
申请人： Noriaki Satoh , Masaharu Kawamura , Toyomi Ohsawa , Hideki Ohzeki , Kazunari Tsuchimoto
发明人： Noriaki Satoh , Masaharu Kawamura , Toyomi Ohsawa , Hideki Ohzeki , Kazunari Tsuchimoto
IPC分类号： G11B5/00
CPC分类号： G11B5/3136 , G11B5/6005 , G11B5/6029 , G11B5/6064
摘要： Embodiments of the invention reduce a possibility that a head will collide with a medium when the clearance between the head and the medium is adjusted by using a medium, and sufficiently reduce the clearance even at an initial stage of accessing a data area. In one embodiment, a hard disk drive (HDD) switches a heater from OFF to ON in the specified timing after a seek mode is switched to a following mode. Specifically, for example, on the completion of seek operation, in the timing in which a head arrives at a target track, or in the timing in which an HDC/MPU enters the following mode, the heater is turned ON, and this state is kept unchanged until access to the target sector is made.
摘要翻译：本发明的实施例减少了当通过使用介质来调整头部和介质之间的间隙时头部将与介质碰撞的可能性，并且即使在访问数据区域的初始阶段也足够地减小间隙。在一个实施例中，在寻找模式切换到后续模式之后，硬盘驱动器（HDD）在指定的定时将加热器从OFF切换到ON。具体地，例如，在寻道操作完成时，在头到达目标轨道的时刻，或者在HDC / MPU进入后续模式的时刻，加热器接通，该状态为保持不变，直到进入目标部门。

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