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    • 5. 发明授权
    • Wireless power supply apparatus
    • 无线供电装置
    • US08217535B2
    • 2012-07-10
    • US12730459
    • 2010-03-24
    • Akiyoshi UchidaMasakazu Taguchi
    • Akiyoshi UchidaMasakazu Taguchi
    • H01F37/00
    • H02J50/12H02J5/005H02J7/025H02J50/90
    • A wireless power supply includes: a power transmitting coil resonant at a first resonant frequency that generates a magnetic field resonance, a power receiving coil resonant at the first resonant frequency, a power receiving unit that outputs energy received by the power receiving resonant coil; a distance detector that detects a distance between the power transmitting resonant coil and the power receiving resonant coil; a power transmitting frequency controller that changes the first resonant frequency to a second resonant frequency on the basis of the distance detected by the distance detector; and a power receiving frequency controller that changes the first resonant frequency of the power receiving resonant coil from the first resonant frequency to a second resonant frequency on the basis of the distance detected by the distance detector.
    • 无线电源包括:以产生磁场谐振的第一谐振频率谐振的功率传输线圈,以第一谐振频率谐振的受电线圈;输出由电力接收谐振线圈接收的能量的功率接收单元; 距离检测器,其检测所述发射功率谐振线圈和所述受电谐振线圈之间的距离; 功率发射频率控制器,其基于由所述距离检测器检测到的距离,将所述第一谐振频率改变为第二谐振频率; 以及功率接收频率控制器,其基于由距离检测器检测到的距离,将电力接收用谐振线圈的第一谐振频率从第一谐振频率改变为第二谐振频率。
    • 6. 发明授权
    • Magnetic disk apparatus and magnetic disk access control method
    • 磁盘装置和磁盘访问控制方法
    • US07848049B2
    • 2010-12-07
    • US12484866
    • 2009-06-15
    • Mineo MoribeMasakazu TaguchiAtsushi Tanaka
    • Mineo MoribeMasakazu TaguchiAtsushi Tanaka
    • G11B21/02G11B5/596
    • G11B5/59633G11B5/59672
    • A magnetic disk apparatus includes a magnetic disk, a magnetic head, a reverse-pulse detector, and a re-magnetizer. The magnetic disk includes a data recording area and a servo-pattern area. The magnetic regions of the servo-pattern area have been pre-magnetized in the same direction or pre-magnetizing direction. The magnetic head is arranged to reciprocate radially of the magnetic disk. The reverse-pulse detector is provided for reading the servo-pattern area with the magnetic head before data recording or reproducing with respect to the data recording area is performed. The reverse-pulse detector detects, from servo reproduction signal pulses, reverse pulses corresponding to the reversal of magnetization direction relative to the pre-magnetizing direction. The re-magnetizer causes the magnetic head to perform the re-magnetizing of the magnetic regions in the servo-pattern area when the count of reverse pulses is not smaller than a threshold number.
    • 磁盘装置包括磁盘,磁头,反向脉冲检测器和再磁化器。 磁盘包括数据记录区域和伺服图案区域。 伺服图案区域的磁区已经沿相同方向或预磁化方向预磁化。 磁头布置成在磁盘的径向往复运动。 反相脉冲检测器被提供用于在执行关于数据记录区域的数据记录或再现之前用磁头读取伺服图案区域。 反向脉冲检测器从伺服再现信号脉冲检测相对于预磁化方向反转磁化方向的反向脉冲。 当反向脉冲的计数不小于阈值时,再磁化器使磁头执行伺服图形区域中的磁区的再磁化。
    • 7. 发明申请
    • WIRELESS POWER SUPPLY APPARATUS
    • 无线电源设备
    • US20100244580A1
    • 2010-09-30
    • US12730459
    • 2010-03-24
    • Akiyoshi UchidaMasakazu Taguchi
    • Akiyoshi UchidaMasakazu Taguchi
    • H02J17/00
    • H02J50/12H02J5/005H02J7/025H02J50/90
    • A wireless power supply includes: a power transmitting coil resonant at a first resonant frequency that generates a magnetic field resonance, a power receiving coil resonant at the first resonant frequency, a power receiving unit that outputs energy received by the power receiving resonant coil; a distance detector that detects a distance between the power transmitting resonant coil and the power receiving resonant coil; a power transmitting frequency controller that changes the first resonant frequency to a second resonant frequency on the basis of the distance detected by the distance detector; and a power receiving frequency controller that changes the first resonant frequency of the power receiving resonant coil from the first resonant frequency to a second resonant frequency on the basis of the distance detected by the distance detector.
    • 无线电源包括:以产生磁场谐振的第一谐振频率谐振的功率传输线圈,以第一谐振频率谐振的受电线圈;输出由电力接收谐振线圈接收的能量的功率接收单元; 距离检测器,其检测所述发射功率谐振线圈和所述受电谐振线圈之间的距离; 功率发射频率控制器,其基于由所述距离检测器检测到的距离,将所述第一谐振频率改变为第二谐振频率; 以及功率接收频率控制器,其基于由距离检测器检测到的距离,将电力接收用谐振线圈的第一谐振频率从第一谐振频率改变为第二谐振频率。
    • 8. 发明申请
    • MAGNETIC DISK APPARATUS AND MAGNETIC DISK ACCESS CONTROLLING METHOD
    • 磁盘设备和磁盘访问控制方法
    • US20100020436A1
    • 2010-01-28
    • US12479397
    • 2009-06-05
    • Mineo MoribeMasakazu TaguchiKazuyuki Ozaki
    • Mineo MoribeMasakazu TaguchiKazuyuki Ozaki
    • G11B5/596
    • G11B5/59688B82Y10/00G11B5/59633G11B5/743G11B5/746G11B5/82G11B5/855
    • A magnetic disk apparatus includes a magnetic disk, a magnetic head, a servo reproduction signal generator and a magnetic head controller. The disk includes a data recording area and a servo-pattern area. The data recording area includes a non-magnetic area scattered with magnetic regions, and the servo-pattern area includes uniformly magnetized magnetic regions larger than the magnetic regions in the recording area. The magnetic head reciprocates radially of the disk, giving a magnetization direction to the magnetic regions in the data recording area and reading the magnetization direction of the magnetic regions in the data recording area and the servo-pattern area. The servo reproduction signal generator reads the servo-pattern area, using the magnetic head, via an absolute-value calculation circuit to generate a servo reproduction signal before the recording or reading with respect to the data recording area. The magnetic head controller performs recording or reproducing with respect to the data recording area by controlling the magnetic head based on the servo reproduction signal.
    • 磁盘装置包括磁盘,磁头,伺服再现信号发生器和磁头控制器。 盘包括数据记录区和伺服图案区。 数据记录区域包括与磁性区域分散的非磁性区域,伺服图案区域包括比记录区域中的磁性区域大的均匀磁化的磁性区域。 磁头沿圆盘的径向往复运动,给数据记录区域的磁性区域提供磁化方向,并读取数据记录区域和伺服图形区域中磁区的磁化方向。 伺服再现信号发生器通过绝对值计算电路使用磁头读取伺服图形区域,以在相对于数据记录区域进行记录或读取之前产生伺服再现信号。 磁头控制器通过基于伺服再现信号控制磁头来执行关于数据记录区域的记录或再现。
    • 10. 发明授权
    • Data reproduction device
    • 数据再现装置
    • US07372797B2
    • 2008-05-13
    • US10628687
    • 2003-07-28
    • Toshikazu KanaokaMasakazu Taguchi
    • Toshikazu KanaokaMasakazu Taguchi
    • G11B5/09G11B20/10G11B7/00
    • G11B7/005G11B5/012G11B5/09G11B20/10009G11B20/10037G11B20/10046G11B20/10222G11B20/10425G11B27/3027H03L7/00
    • A data reproduction device for sampling a signal reproduced from a recording medium based on a synchronization clock signal synchronized with the reproduced signal includes: an analog-to-digital conversion part converting the reproduced signal into a first digital signal based on a first clock signal; an interpolation part interpolating the first digital signal so that the first digital signal is equalized with a second digital signal sampled based on a second clock signal having a frequency n times the frequency of the first clock signal; an optimum phase detection part receiving the output of the interpolation part and detecting the phase error between the optimum point of the reproduced signal and the synchronization clock signal; a phase correction part correcting the phase of the reproduced signal based on the phase error; and an information data start detection part detecting the start of information data based on the phase error.
    • 根据与再现信号同步的同步时钟信号,对从记录介质再现的信号进行采样的数据再现装置包括:模数转换部分,基于第一时钟信号将再现信号转换为第一数字信号; 内插部分内插第一数字信号,使得第一数字信号与基于具有n倍于第一时钟信号频率的频率的第二时钟信号采样的第二数字信号相等; 接收内插部分的输出并检测再生信号的最佳点与同步时钟信号之间的相位误差的最佳相位检测部分; 相位校正部,基于相位误差校正再现信号的相位; 以及信息数据开始检测部,其基于相位误差来检测信息数据的开始。