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    Reducing read element power dissipation levels in a disc drive
    1.
    发明授权
    Reducing read element power dissipation levels in a disc drive 有权
    降低磁盘驱动器中的读取元件功耗级别

    公开(公告)号：US06693756B2

    公开(公告)日：2004-02-17

    申请号：US09894329

    申请日：2001-06-27

    申请人： Hweepeng Teo ,  Myint Ngwe ,  BengTheam Ko ,  FongKheon Chong ,  Kah Liang Gan

    发明人： Hweepeng Teo ,  Myint Ngwe ,  BengTheam Ko ,  FongKheon Chong ,  Kah Liang Gan

    IPC分类号： G11B503

    CPC分类号： G11B5/09 ,  G11B5/012 ,  G11B33/14 ,  G11B2005/0008 ,  G11B2005/001 ,  G11B2005/0013 ,  G11B2005/0016 ,  G11B2005/0018

    摘要： Apparatus and method for transferring data in a disc drive data handling system. A read/write head having separate write and read elements is used to write data to and transduce data from a disc recording surface. A preamplifier driver circuit applies write currents to the write element to write data to the recording surface and to apply a first read bias signal of selected, nonzero magnitude to the read element to transduce data from the recording surface. In response to the assertion of a write gate signal, the preamplifier driver circuit generates a second read bias signal of selected, nonzero magnitude and applies the second read bias signal to the read element while applying the write currents to the write element. This reduces the potential for damage to the read element due to cross-talk noise induced in the read bias signal from magnetic coupling between the read and write elements.

    摘要翻译： 用于在盘驱动器数据处理系统中传送数据的装置和方法。 具有单独写入和读取元件的读/写头用于向盘记录表面写入数据并从盘记录表面转换数据。 前置放大器驱动器电路向写入元件施加写入电流以将数据写入记录表面，并将所选择的非零幅度的第一读取偏置信号施加到读取元件以从记录表面转换数据。 响应于写入门信号的确认，前置放大器驱动器电路产生所选择的非零幅度的第二读偏置信号，并将第二读偏置信号施加到读元件，同时向写元件施加​​写电流。 这就降低了读取元件由于在读取和写入元件之间的磁耦合引起的读取偏置信号中引起的串扰噪声的可能性。

    Dynamic mask-ROM register patching
    2.
    发明授权
    Dynamic mask-ROM register patching 失效
    动态掩码ROM寄存器修补

    公开(公告)号：US07065605B2

    公开(公告)日：2006-06-20

    申请号：US10628696

    申请日：2003-07-28

    申请人： WeiMing Yeow ,  QuekLeong Choo ,  Myint Ngwe ,  FongKheon Chong ,  KianWai Ng

    发明人： WeiMing Yeow ,  QuekLeong Choo ,  Myint Ngwe ,  FongKheon Chong ,  KianWai Ng

    IPC分类号： G06F12/00

    CPC分类号： G11B20/18

    摘要： According to one embodiment of the present invention, a method of tuning a Power-On-Reset (POR) register in a data storage device comprises determining a tuned value for the POR register using feedback from the data storage device obtained during a certification process of the data storage device and storing a list in one or more system sectors of the data storage device, the list comprising an address of the POR register to be patched and the tuned value. According to another embodiment of the present invention, a disc drive comprises a rotatable disc, a microprocessor, and a memory. The memory has a start-up routine that, when executed by the microprocessor, causes the microprocessor to patch a Power-On-Reset (POR) register using a tuned values stored in one or more system sectors of the rotatable disc.

    摘要翻译： 根据本发明的一个实施例，一种调整数据存储设备中的上电复位（POR）寄存器的方法包括：使用来自在认证过程中获得的数据存储设备的反馈来确定POR寄存器的调谐值 数据存储装置，并将列表存储在数据存储装置的一个或多个系统扇区中，该列表包括要修补的POR寄存器的地址和调谐值。 根据本发明的另一个实施例，盘驱动器包括可旋转盘，微处理器和存储器。 存储器具有启动程序，当微处理器执行时，微处理器使用存储在可旋转盘的一个或多个系统扇区中的调谐值来修补上电复位（POR）寄存器。

    Dynamic mask-ROM register patching
    5.
    发明申请
    Dynamic mask-ROM register patching 失效
    动态掩码ROM寄存器修补

    公开(公告)号：US20050028023A1

    公开(公告)日：2005-02-03

    申请号：US10628696

    申请日：2003-07-28

    申请人： WeiMing Yeow ,  QuekLeong Choo ,  Myint Ngwe ,  FongKheon Chong ,  KianWai Ng

    发明人： WeiMing Yeow ,  QuekLeong Choo ,  Myint Ngwe ,  FongKheon Chong ,  KianWai Ng

    IPC分类号： G06F11/00 ,  G11B20/18

    CPC分类号： G11B20/18

    摘要： According to one embodiment of the present invention, a method of tuning a Power-On-Reset (POR) register in a data storage device comprises determining a tuned value for the POR register using feedback from the data storage device obtained during a certification process of the data storage device and storing a list in one or more system sectors of the data storage device, the list comprising an address of the POR register to be patched and the tuned value. According to another embodiment of the present invention, a disc drive comprises a rotatable disc, a microprocessor, and a memory. The memory has a start-up routine that, when executed by the microprocessor, causes the microprocessor to patch a Power-On-Reset (POR) register using a tuned values stored in one or more system sectors of the rotatable disc.

    摘要翻译： 根据本发明的一个实施例，一种调整数据存储设备中的上电复位（POR）寄存器的方法包括：使用来自在认证过程中获得的数据存储设备的反馈来确定POR寄存器的调谐值 数据存储装置，并将列表存储在数据存储装置的一个或多个系统扇区中，该列表包括要修补的POR寄存器的地址和调谐值。 根据本发明的另一个实施例，盘驱动器包括可旋转盘，微处理器和存储器。 存储器具有启动程序，当微处理器执行时，微处理器使用存储在可旋转盘的一个或多个系统扇区中的调谐值来修补上电复位（POR）寄存器。