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    • 3. 发明授权
    • Recording device and controller and control method for a recording device
    • 记录装置和记录装置的控制器和控制方法
    • US07170705B2
    • 2007-01-30
    • US10250755
    • 2001-12-24
    • Masahiro ShimizuNobuyuki Kitazaki
    • Masahiro ShimizuNobuyuki Kitazaki
    • G11B19/04G11B21/02
    • G11B19/04G11B21/106
    • A process, apparatus, and system are disclosed for inhibiting erroneous control signals due to disruptive electromagnetic signals. In one embodiment, the invention prevents erroneous information writing in a recording device under the effect of background electromagnetic waves. A conductor pattern is formed on a printed wiring board on which wiring constituting a control circuit of a hard disk drive is formed. Background electromagnetic waves are detected by an electromagnetic wave detection circuit. In the case where an electromagnetic wave signal detected by the electromagnetic wave detection circuit exceeds a predetermined power, voltage, or current threshold, a write gate signal is turned off to inhibit a potential write operation.
    • 公开了一种用于抑制由于破坏性电磁信号引起的错误控制信号的过程,装置和系统。 在一个实施例中,本发明防止在背景电磁波的作用下在记录装置中的错误信息写入。 在形成有构成硬盘驱动器的控制电路的布线的印刷布线板上形成导体图案。 电磁波检测电路检测背景电磁波。 在由电磁波检测电路检测到的电磁波信号超过预定功率,电压或电流阈值的情况下,写入门信号被关闭以禁止写入动作。
    • 6. 发明申请
    • Disk drive device and method for production thereof
    • 磁盘驱动装置及其制造方法
    • US20080239554A1
    • 2008-10-02
    • US12079497
    • 2008-03-26
    • Sumie TakedaNobuya MatsubaraNobuyuki KitazakiToshifumi Kumano
    • Sumie TakedaNobuya MatsubaraNobuyuki KitazakiToshifumi Kumano
    • G11B5/596
    • G11B5/59688G11B5/59633
    • Embodiments of the present invention provide a magnetic disk device and a method for production thereof, the magnetic disk device being characterized in that the magnetic disk therein permits a plurality of tracks thereon to record correction data when necessary without decreasing its storage capacity. According to one embodiment, the magnetic disk device is characterized in that the magnetic disk has the first tracks and the second tracks formed thereon, the first tracks having servo data regions arranged cyclically, with a portion of a region between them being the correction data region and the remaining regions being the user data region, and the second tracks having the servo data regions arranged cyclically, with the region between them being the user data regions, and the multiprocessing unit (MPU) switches the servo extraction timing of the position information sampler depending on whether the track for servo reproduction by the magnetic head is the first track or the second track.
    • 本发明的实施例提供一种磁盘装置及其制造方法,其特征在于,其中的磁盘允许其上的多个轨道在必要时记录校正数据而不降低其存储容量。 根据一个实施例,磁盘装置的特征在于,磁盘具有形成在其上的第一轨道和第二轨道,第一轨道具有循环布置的伺服数据区域,其间的区域的一部分是校正数据区域 其余区域为用户数据区域,第二轨道具有循环布置的伺服数据区域,其间的区域是用户数据区域,多处理单元(MPU)切换位置信息采样器的伺服提取定时 取决于由磁头进行伺服再现的轨道是第一轨道还是第二轨道。
    • 10. 发明授权
    • Disk drive device and method for production thereof
    • 磁盘驱动装置及其制造方法
    • US07675700B2
    • 2010-03-09
    • US12079497
    • 2008-03-26
    • Sumie TakedaNobuya MatsubaraNobuyuki KitazakiToshifumi Kumano
    • Sumie TakedaNobuya MatsubaraNobuyuki KitazakiToshifumi Kumano
    • G11B5/09G11B5/596
    • G11B5/59688G11B5/59633
    • Embodiments of the present invention provide a magnetic disk device and a method for production thereof, the magnetic disk device being characterized in that the magnetic disk therein permits a plurality of tracks thereon to record correction data when necessary without decreasing its storage capacity. According to one embodiment, the magnetic disk device is characterized in that the magnetic disk has the first tracks and the second tracks formed thereon, the first tracks having servo data regions arranged cyclically, with a portion of a region between them being the correction data region and the remaining regions being the user data region, and the second tracks having the servo data regions arranged cyclically, with the region between them being the user data regions, and the multiprocessing unit (MPU) switches the servo extraction timing of the position information sampler depending on whether the track for servo reproduction by the magnetic head is the first track or the second track.
    • 本发明的实施例提供一种磁盘装置及其制造方法,其特征在于,其中的磁盘允许其上的多个轨道在必要时记录校正数据而不降低其存储容量。 根据一个实施例,磁盘装置的特征在于,磁盘具有形成在其上的第一轨道和第二轨道,第一轨道具有循环布置的伺服数据区域,其间的区域的一部分是校正数据区域 其余区域为用户数据区域,第二轨道具有循环布置的伺服数据区域,其间的区域是用户数据区域,多处理单元(MPU)切换位置信息采样器的伺服提取定时 取决于由磁头进行伺服再现的轨道是第一轨道还是第二轨道。