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    • 32. 发明授权
    • Magnetic disk drive with parameter setting
    • 带参数设置的磁盘驱动器
    • US07136240B2
    • 2006-11-14
    • US11050397
    • 2005-02-02
    • Noboru YoshidaMasato Taniguchi
    • Noboru YoshidaMasato Taniguchi
    • G11B20/10
    • G11B5/40G11B33/144
    • Embodiments of the invention are directed to setting optimum FIR filter coefficients. In one embodiment, a POR (Power On Reset) control block acquires temperature data from a thermistor. If the temperature is the first to have been detected as falling within a low temperature range, a filter coefficient determining block in a read/write channel determines filter coefficients of a FIR filter by using the signal acquired from the magnetic disk. The determined filter coefficients are set to the FIR filter. If the temperature data does not satisfy the above-mentioned condition, filter coefficients registered in a filter coefficient table are set to the FIR filter.
    • 本发明的实施例涉及设置最佳FIR滤波器系数。 在一个实施例中,POR(上电复位)控制块从热敏电阻获取温度数据。 如果温度首先被检测为落在低温范围内,则读/写通道中的滤波器系数确定块通过使用从磁盘获取的信号来确定FIR滤波器的滤波器系数。 将确定的滤波器系数设置为FIR滤波器。 如果温度数据不满足上述条件,则将滤波器系数表中记录的滤波器系数设置为FIR滤波器。