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    • 1. 发明授权
    • Magnetic disk writing method and a magnetic disk apparatus
    • 磁盘写入方法和磁盘装置
    • US5896239A
    • 1999-04-20
    • US125311
    • 1993-09-21
    • Shinichi MakiTatsuya MasudaKazunobu TomiyamaYoshihisa Matsumoto
    • Shinichi MakiTatsuya MasudaKazunobu TomiyamaYoshihisa Matsumoto
    • G11B5/02G11B5/012G11B5/55G11B5/596G11B23/00G11B5/09
    • G11B5/5526G11B5/012G11B23/0007G11B5/59605
    • A method and disk apparatus, for writing data disk apparatus, that reduces the adverse influence of noise caused by data head writing on a read signal of a servo head even though the data head and the servo head are collaterally paired with no disks there between. A magnetic disk apparatus comprises a plurality of magnetic disks that are stacked at predetermined intervals; a servo head for reading servo signals recorded on a servo surface of one of the magnetic disks; a plurality of data heads, one of which is provided for each data surface of the magnetic disks with a first data head being collaterally positioned with the servo head, with no intervening magnetic disk, and second data heads being positioned at other than the collateral position; and an actuator for supporting the servo head and the data heads and for positioning the servo head and the data heads by moving them radially relative to the magnetic disks. The method comprises the steps of: producing a write current whose value is varied by selecting either the first data head or one of the second data heads in consonance with a head select signal; and driving, at the write current value, the data head that is selected by the head select signal in consonance with write data. The magnetic disk apparatus further comprises a write circuit for varying a write current value by selecting either the first data head or one of the second data heads in consonance with a head select signal, and for driving the selected data head in consonance with write data.
    • 即使数据磁头和伺服磁头与其间没有磁盘成对配对,也可以减少数据磁头写入对伺服磁头的读取信号造成的噪声的不良影响的方法和磁盘装置。 磁盘装置包括以预定间隔堆叠的多个磁盘; 用于读取记录在一个磁盘的伺服表面上的伺服信号的伺服头; 多个数据头,其中一个为磁盘的每个数据表面提供,第一数据头与伺服头相互定位,没有中间磁盘,第二数据磁头位于辅助位置之外 ; 以及用于支撑伺服头和数据头的致动器,并且用于通过相对于磁盘径向移动来定位伺服头和数据头。 该方法包括以下步骤:通过根据头部选择信号选择第一数据头或第二数据头之一来产生其值被改变的写入电流; 并以写入当前值驱动由头部选择信号选择的与写入数据相符合的数据头。 磁盘装置还包括写入电路,用于通过根据头部选择信号选择第一数据头或第二数据头中的一个来改变写入电流值,并且用于根据写入数据来驱动所选择的数据头。
    • 9. 发明授权
    • Magnetic spring arm assembly including structure for preventing damage
to a conductive layer resulting from bending
    • 磁性弹簧臂组件包括用于防止由弯曲导致的导电层损坏的结构
    • US5612840A
    • 1997-03-18
    • US248334
    • 1994-05-24
    • Sinji HiraokaYoshihisa MatsumotoIsamu ItohShigeo Terashima
    • Sinji HiraokaYoshihisa MatsumotoIsamu ItohShigeo Terashima
    • G11B5/60G11B5/48G11B21/21
    • G11B5/486G11B5/4833
    • A magnetic head unit is provided by which damage to a conductive-pattern layer formed on a spring arm during a bending process of the spring arm can be prevented. The magnetic head unit comprises a magnetic head and a spring arm having a bent portion which is bent to generate an elastic force. The magnetic head is mounted on an end of the spring arm. At least one conductive-pattern layer is formed on a surface of the spring arm to extend from a gimbal portion where the magnetic head is mounted to a attachment portion where the spring arm is mounted to a member of a magnetic head driving mechanism. The bent portion has a first portion and a second portion separated from the first portion. The conductive-pattern layer passes through the second portion. No external force is applied to the conductive-pattern layer formed during a bending process for the bent portion. A dispersing-pattern layer may be provided for dispersing an external force exerted on the conductive-pattern layer during the bending process of the bent portion so that said conductive-pattern layer is protected from being damaged due to the external force being concentrated onto said conductive-pattern layer.
    • 提供一种磁头单元,可以防止在弹簧臂的弯曲过程中在弹簧臂上形成的导电图案层的损坏。 磁头单元包括磁头和具有弯曲部分以产生弹力的弯曲部分的弹簧臂。 磁头安装在弹簧臂的一端。 至少一个导电图案层形成在弹簧臂的表面上,从安装磁头的万向节部分延伸到安装弹簧臂的安装部分到磁头驱动机构的构件上。 弯曲部分具有与第一部分分离的第一部分和第二部分。 导电图案层通过第二部分。 对于弯曲部分的弯曲处理期间形成的导电图案层没有施加外力。 可以提供分散图案层,用于在弯曲部分的弯曲过程期间分散施加在导电图案层上的外力,使得所述导电图案层由于外力被集中到所述导电层上而被损坏 图案层。