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11. 发明授权

US06819513B2 Low power hard disk drive using multiple, individually controllable actuators 失效
标题翻译：低功率硬盘驱动器使用多个独立可控的执行器
公开(公告)号：US06819513B2
公开(公告)日：2004-11-16
申请号：US10038699
申请日：2002-01-02
申请人： Timothy J. Chainer , Anthony P. Praino
发明人： Timothy J. Chainer , Anthony P. Praino
IPC分类号： G11B1512
CPC分类号： G11B5/5552 , G11B5/4976 , G11B5/5526
摘要： A disk drive which incorporates separate actuators for each recording head so as to only place required recording heads over the recording media of multiple surface hard disk drives. The reduction in recording heads that are placed over the recording media reduces drag on the rotating disk holding the recording media and thereby reduces the power consumption. Reducing the number of recording heads over the recording media also reduces damage to the recording media surfaces in the event of a physical shock to the drive since inactive transducer heads are not in a position to damage the recording media.
摘要翻译：一个磁盘驱动器，其中包含用于每个记录头的单独的致动器，以便仅将所需的记录头放置在多个表面硬盘驱动器的记录介质上。放置在记录介质上的记录头的减少减少了保持记录介质的旋转盘上的拖动，从而降低了功耗。在记录介质上减少记录头的数量也可以减少在对驱动器造成物理冲击的情况下对记录介质表面的损坏，因为无效传感器头不能损坏记录介质。

12. 发明授权

US06728054B2 Drive with adaptive data format and head switch sequencing 有权
标题翻译：驱动器采用自适应数据格式和头切换排序
公开(公告)号：US06728054B2
公开(公告)日：2004-04-27
申请号：US09999329
申请日：2001-10-31
申请人： Yong Peng Chng , Steven Tian Chye Cheok , Patrick Tai Heng Wong , Ricky Wei Watt Yeo , Wesley Wing Hung Chan
发明人： Yong Peng Chng , Steven Tian Chye Cheok , Patrick Tai Heng Wong , Ricky Wei Watt Yeo , Wesley Wing Hung Chan
IPC分类号： G11B1512
CPC分类号： G11B20/10 , G11B19/02
摘要： A system for adapting head switching sequence in a disc drive includes a method of measuring the time duration for a head switch operation and the time duration of a track switch operation. The system compares the two time durations to determine whether head switching or track switching should be utilized within a zone of tracks on the surface of the data disc. Track switch time durations and head switch time durations may be averaged within a zone and the averages compared to determine whether to use head switching or track switching.
摘要翻译：用于在盘驱动器中适配头切换序列的系统包括测量头切换操作的持续时间和轨道切换操作的持续时间的方法。系统比较两个持续时间以确定在数据盘的表面上的磁道区域内是否应使用磁头切换或磁道切换。轨道切换时间持续时间和头切换时间可以在区域内进行平均，并且平均值进行比较以确定是否使用头切换或轨道切换。

13. 发明授权

US06714373B1 Magnetic disk device having an improved seek control 失效
标题翻译：具有改进的寻道控制的磁盘装置
公开(公告)号：US06714373B1
公开(公告)日：2004-03-30
申请号：US09603221
申请日：2000-06-26
申请人： Kiyotaka Sasaki
发明人： Kiyotaka Sasaki
IPC分类号： G11B1512
CPC分类号： G11B5/59605 , G11B5/5526
摘要： A magnetic disk device has an improved seek control in which a waiting time occurred in a first magnetic head while it is scanning a first track, is utilized efficiently and effectively by activating a second magnetic head such that the second magnetic head scans a second track during the waiting time of the first magnetic head.
摘要翻译：磁盘装置具有改进的寻道控制，其中在扫描第一轨道时第一磁头中发生等待时间，通过激活第二磁头而有效和高效地被利用，使得第二磁头扫描第二磁道第一磁头的等待时间。

14. 发明授权

US06687073B1 Method of simultaneously writing servo tracks on a hard disk drive 失效
标题翻译：在硬盘驱动器上同时写入伺服磁道的方法
公开(公告)号：US06687073B1
公开(公告)日：2004-02-03
申请号：US09944886
申请日：2001-08-31
申请人： Hanan Kupferman
发明人： Hanan Kupferman
IPC分类号： G11B1512
CPC分类号： G11B5/59655 , G11B5/59638
摘要： A method of writing servo tracks on the disk surfaces of a hard disk drive. The method involves simultaneously writing partial servo tracks, called servo wedges, until a complete first set of servo wedges is written on all the disk surfaces. Then the disks are rotated until the heads of the disk drive are correctly positioned to simultaneously write subsequent servo wedge sets. This process is repeated until enough servo wedge sets are written to complete a first servo track on all the disk surfaces. Then, the heads are pivoted to a new radial position to begin writing a new servo track just as before. Simultaneously writing servo wedges advantageously expedites the often costly servo writing process.
摘要翻译：一种在硬盘驱动器的磁盘表面上写入伺服磁道的方法。该方法包括同时写入称为伺服楔形的部分伺服磁道，直到完整的第一组伺服楔形件写入所有磁盘表面。然后旋转磁盘，直到磁盘驱动器的磁头正确定位，以便同时写入后续的伺服楔组。重复该过程，直到写入足够的伺服楔组以完成所有磁盘表面上的第一伺服磁道。然后，如前所述，磁头枢转到新的径向位置，开始写入新的伺服磁道。同时写入伺服楔可有助于加速经常昂贵的伺服写入过程。

15. 发明授权

US06650496B2 Fully integrated matrix magnetic recording head with independent control 失效
标题翻译：全集成矩阵磁记录头，独立控制
公开(公告)号：US06650496B2
公开(公告)日：2003-11-18
申请号：US09858225
申请日：2001-05-15
申请人： Jean-Pierre Nozieres , O. Girard , E. Saporito , L. Chiesi , Joern Raastad
发明人： Jean-Pierre Nozieres , O. Girard , E. Saporito , L. Chiesi , Joern Raastad
IPC分类号： G11B1512
CPC分类号： G11B5/3183 , G11B5/17 , G11B5/29 , G11B5/295 , G11B5/3103 , G11B5/313 , G11B5/3163 , G11B5/4976
摘要： A matrix array of recording heads, wherein each head is independent from another both in terms of its magnetic circuit and excitation conductors. Each individual head has a planar magnetic circuit and an helical coil wrapped around the lower part of the magnetic circuit. The matrix array is collectively fabricated using full thin film technology on non-magnetic substrates. Preferably, the heads are aligned in an oblique lattice with the write gaps aligned along rows and offset by a constant value along columns. Each individual head is connected to the control electronics through interconnects to the backside of the wafer, allowing independent control of the write parameters. The die forming the device is shaped on its edges and top surface to optimize head/medium positioning and minimize wear.
摘要翻译：一种记录头的矩阵阵列，其中在其磁路和激励导体方面，每个磁头独立于另一磁头。每个单独的头具有平面磁路和缠绕在磁路下部的螺旋线圈。在非磁性基板上使用全部薄膜技术集合地制作矩阵阵列。优选地，头部以倾斜格架排列，其中写入间隙沿着行排列并沿着列偏移恒定值。每个单独的头通过互连连接到控制电子器件到晶片的背面，允许对写入参数的独立控制。形成设备的模具在其边缘和顶部表面上成形，以优化头部/中间定位并使磨损最小化。

16. 发明授权

US06577464B2 Magnetic recording device having first actuator for coarse adjustment and second actuator for fine adjustment 有权
标题翻译：具有用于粗调的第一致动器和用于微调的第二致动器的磁记录装置
公开(公告)号：US06577464B2
公开(公告)日：2003-06-10
申请号：US09785855
申请日：2001-02-16
申请人： Masayoshi Nakagawa
发明人： Masayoshi Nakagawa
IPC分类号： G11B1512
CPC分类号： G11B5/5552
摘要： In a magnetic recording device, a control element placed on a flexible wiring board between a control device and first actuators includes a plurality of actuator-driving-signal connecting terminals connected to a plurality of second actuators, an actuator-driving-signal input terminal to which driving voltage for the second actuators is input from the control device, connecting wires for connecting the actuator-driving-signal input terminal to the actuator-driving-signal connecting terminals, signal selection elements incorporated in the connecting wires, and a decoder for selecting one of the signal selection elements so that a specific actuator-driving-signal connecting terminal is connected to the actuator-driving-signal input terminal.
摘要翻译：在磁记录装置中，放置在控制装置和第一致动器之间的柔性布线板上的控制元件包括连接到多个第二致动器的多个致动器驱动信号连接端子，致动器驱动信号输入端子用于第二致动器的驱动电压从控制装置输入，用于将致动器驱动信号输入端子连接到致动器驱动信号连接端子的连接线，并入连接线中的信号选择元件和用于选择的解码器信号选择元件中的一个，使得特定的致动器驱动信号连接端子连接到致动器驱动信号输入端子。

17. 发明授权

US06483654B2 Disk drive recording apparatus having actuator arm with dual heads and head switching control method 失效
标题翻译：磁盘驱动记录装置，具有带双头和头切换控制方式的执行器臂
公开(公告)号：US06483654B2
公开(公告)日：2002-11-19
申请号：US09948760
申请日：2001-09-10
申请人： Hye-Jeong Nam
发明人： Hye-Jeong Nam
IPC分类号： G11B1512
CPC分类号： G11B5/488 , G11B21/025
摘要： A disk drive recording apparatus includes an actuator arm with first and second heads extending from the actuator arm for writing and reading data to and from a first surface of a disk recording medium. The first and second heads are spaced apart from each other in a circumferential direction along the first surface of the disk recording medium. A switching device switches a data input/output path between the first head and the second head in response to a control signal. A microprocessor identifies a target position on the first surface of the disk recording medium and determines which one of the first and second heads is closer to the target position. The microprocessor then generates the control signal to switch the data input/output path to the first head when the first head is closer to the target position, and generates the control signal to switch the data input/output path to the second head when the second head is closer to the target position. The disk recording medium is preferably divided into three equally spaced intervals in the circumferential direction, and the first head is spaced apart from the second head by one of these intervals.
摘要翻译：磁盘驱动器记录装置包括致动器臂，其具有从致动器臂延伸的第一和第二头部，用于向盘记录介质的第一表面写入和读取数据。第一和第二磁头在盘记录介质的第一表面沿圆周方向彼此间隔开。开关装置响应于控制信号切换第一头部和第二头部之间的数据输入/输出路径。微处理器识别盘记录介质的第一表面上的目标位置，并确定第一和第二头中的哪一个更靠近目标位置。然后，当第一头靠近目标位置时，微处理器产生控制信号以将数据输入/输出路径切换到第一头，并且当第二头处于第二头时，产生控制信号以将数据输入/输出路径切换到第二头头靠近目标位置。盘记录介质优选在圆周方向上分成三个等间隔的间隔，并且第一头部与这些间隔中的一个间隔开第二头部。

18. 发明授权

US06198586B1 Voice recording/playback apparatus for producing a noise level of a voice output unit in a voice recording mode 失效
标题翻译：用于在语音记录模式中降低语音输出单元的噪声水平的语音记录/重放装置
公开(公告)号：US06198586B1
公开(公告)日：2001-03-06
申请号：US09040012
申请日：1998-03-17
申请人： Misao Furuya , Seiji Takamatsu
发明人： Misao Furuya , Seiji Takamatsu
IPC分类号： G11B1512
CPC分类号： G11B33/00 , G11B5/00813 , G11B15/125 , G11B20/24 , G11B31/00
摘要： A voice recording/playback apparatus includes a head unit which records a voice signal in a recording medium and for playing back a recorded voice signal from the recording medium. A playback head amplifier unit amplifies a playback signal output from the head unit. A voice output unit outputs a voice in accordance with the playback signal amplified by the playback head amplifier unit. A muting switch is provided between the playback head amplifier unit and the voice output unit. The muting switch cuts off a connection between the playback head amplifier unit and the voice output unit when a voice recording mode is performed by the head unit.
摘要翻译：语音记录/重放装置包括：头单元，其在记录介质中记录语音信号，并用于从记录介质播放记录的声音信号。回放头放大器单元放大从头单元输出的重放信号。语音输出单元根据由播放头放大器单元放大的重放信号输出声音。在回放头放大器单元和语音输出单元之间提供静音开关。当头单元执行语音记录模式时，静音开关切断播放头放大器单元和语音输出单元之间的连接。

19. 发明授权

US06765740B2 Composite magnetic head, magnetic disk drive using the head, and control method for the magnetic disk 失效
标题翻译：复合磁头，使用磁头的磁盘驱动器以及磁盘的控制方法
公开(公告)号：US06765740B2
公开(公告)日：2004-07-20
申请号：US09956977
申请日：2001-09-21
申请人： Reijiro Tsuchiya
发明人： Reijiro Tsuchiya
IPC分类号： G11B1512
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/012 , G11B5/2652 , G11B5/3103 , G11B5/3909 , G11B5/3945 , G11B5/3948 , G11B5/3961 , G11B5/3967 , G11B5/488 , G11B5/4886 , G11B5/4984 , G11B20/18 , G11B2005/001 , G11B2005/0016 , G11B2005/3996 , G11B2020/183
摘要： A conventional magnetic head has a structure, in which a MR element and a recording element are stacked. The influence of a recording magnetic field on the magnetically sensitive portion of a reproduction element is lessened and the performance of the MR element is stabilized. Also, the reliability of the magnetic disk drive using a MR element is enhanced. The magnetic disk drive uses a composite magnet head, which has a plurality of reproduction elements arranged such that the magnetically sensitive layer of a reproduction element of the composite magnetic head does not overlap with the normal direction projection of the recording element, and which lessens the influence of a recording magnetic field on the magnetically sensitive portion of each reproduction element.
摘要翻译：传统的磁头具有堆叠MR元件和记录元件的结构。记录磁场对再现元件的磁敏部分的影响减小，并且MR元件的性能稳定。此外，使用MR元件的磁盘驱动器的可靠性增强。磁盘驱动器使用复合磁头，其具有多个再现元件，其布置成使得复合磁头的再现元件的磁敏层不与记录元件的法线方向投影重叠，并且减小了记录磁场对每个再现元件的磁敏部分的影响。

20. 发明授权

US06594097B1 Reproduction amplifier circuit of hard disk drive 有权
标题翻译：复制放大器电路的硬盘驱动器
公开(公告)号：US06594097B1
公开(公告)日：2003-07-15
申请号：US09515709
申请日：2000-02-29
申请人： Michiya Sako
发明人： Michiya Sako
IPC分类号： G11B1512
CPC分类号： H03F3/72 , G11B5/00 , G11B5/012 , G11B5/02 , G11B5/40 , G11B2005/0016
摘要： The overvoltage applied on a head during switching of the head is prevented. At the time when the head switching signal changes, a switch S4 for turning on/off an operational amplifier Gm1 is turned off, and the operational amplifier Gm1 is turned off. Simultaneously, the switch S3 is turned on, the current source I1 is connected to a capacitor C1, and the capacitor C1 is discharged. Then, switches S1 and S2 for switching the MR head are switched. Finally, the switch S3 is turned off and the switch S4 is turned on, thus the switching of the MR head is finished.
摘要翻译：防止在头部切换期间施加在头部上的过电压。在磁头切换信号变化的时刻，用于使运算放大器Gm1导通/截止的开关S4截止，运算放大器Gm1截止。同时，开关S3导通，电流源I1连接到电容器C1，并且电容器C1被放电。然后，用于切换MR磁头的开关S1和S2被切换。最后，开关S3断开，开关S4导通，结束MR磁头的切换。

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