公开(公告)号：US06721125B2

公开(公告)日：2004-04-13

申请号：US09892116

申请日：2001-06-26

申请人： Lawrence Matthias Bryant

发明人： Lawrence Matthias Bryant

IPC分类号： G11B5596

CPC分类号： G11B5/5552

摘要： An apparatus and method for sensing the position of a read/write head or transducer carried by a microactuator at a distal end of a primary actuator in a head disc assembly of a disc drive. The position sensing system has a fixed member attached to the primary actuator and a moveable member attached to the fixed member by an attachment device. The attachment device permits the moveable member to move in relation to the fixed member along a predetermined pathway. A secondary voice coil motor (VCM) drives the movement of the microactuator via a VCM coil that is affixed to the moveable member, wherein a high frequency signal is applied to the VCM coil. At least one sense coil is attached to the fixed member and positioned near the VCM coil, such that the sense coil will receive a portion of the high frequency signal transmitted from the VCM coil through mutual magnetic coupling. The magnitude of magnetic coupling at the sense coil will provide a position measurement of the VCM coil of the microactuator, and thus the transducer, relative to the primary actuator.

摘要翻译： 一种用于感测由微型致动器承载的读/写头或换能器在盘驱动器的头盘组件中的主致动器的远端处的位置的装置和方法。 位置检测系统具有附接到主致动器的固定构件和通过附接装置附接到固定构件的可移动构件。 附接装置允许可移动构件沿预定路径相对于固定构件移动。 次级音圈电机（VCM）通过固定在可移动部件上的VCM线圈驱动微致动器的运动，其中高频信号被施加到VCM线圈。 至少一个感测线圈附接到固定构件并且位于VCM线圈附近，使得感测线圈将接收通过相互磁耦合从VCM线圈传输的高频信号的一部分。 感测线圈处的磁耦合幅度将提供微致动器的VCM线圈的位置测量值，从而提供相对于主执行器的换能器的位置测量。

公开(公告)号：US07038225B2

公开(公告)日：2006-05-02

申请号：US10875629

申请日：2004-06-23

申请人： David Shiao-Min Kuo ,  Christopher Joseph Formato ,  Neil Deeman ,  Sundeep Chauhan ,  Lawrence Matthias Bryant

发明人： David Shiao-Min Kuo ,  Christopher Joseph Formato ,  Neil Deeman ,  Sundeep Chauhan ,  Lawrence Matthias Bryant

IPC分类号： H01J37/00 ,  G11B5/596

CPC分类号： H01L21/67259 ,  G11B7/261 ,  H01J2237/2025 ,  H01J2237/304 ,  H01L21/67253 ,  H01L21/681

摘要： Embodiments of the invention generally provide an electron beam substrate processing system. In one embodiment, the present invention provides an electron beam substrate processing system where a spindle shaft used to rotate substrates during processing includes two encoder wheels. One encoder wheel is configured to provide a rotational speed data signal to a rotational speed control system. Another encoder wheel is configured to provide a pattern generator clock signal at a higher frequency than the rotational speed data signal to a pattern generator. In one embodiment of the present invention, at least one of the encoder wheels is positioned adjacent the substrate to minimize torsional and differential movements between the at least one encoder wheel and the substrate.

摘要翻译： 本发明的实施例通常提供电子束基板处理系统。 在一个实施例中，本发明提供一种电子束基板处理系统，其中用于在加工过程中旋转基板的主轴用于包括两个编码轮。 一个编码轮构造成向转速控制系统提供转速数据信号。 另一个编码器轮被配置为向图案发生器提供比转速数据信号更高的频率的模式发生器时钟信号。 在本发明的一个实施例中，编码器轮中的至少一个定位成与基板相邻，以最小化编码轮和基板之间的扭转和差速运动。

公开(公告)号：US5760942A

公开(公告)日：1998-06-02

申请号：US563351

申请日：1995-11-28

申请人： Lawrence Matthias Bryant

发明人： Lawrence Matthias Bryant

IPC分类号： H04B10/158 ,  H04B10/10 ,  H04B10/06

CPC分类号： H04B10/66

摘要： Reduction of lower frequency interfering signals including signals from fluorescent light systems can be achieved by an optical receiving system, before the detection process, by differentiating the signal and then using a modified detection process to detect the differentiated signal. At least one data channel is included in the optical receiving system, each data channel including an optical receiving transducer which receives optical transmissions from an optical transmitter positioned a distance away from the optical receiving system. From the transducer, the received signal is differentiated and amplified to remove unwanted interfering signals from the received signal before it is transmitted to a detector. The detector converts the differentiated and amplified signal into an output data stream which corresponds to the signal originally presented to the optical transmitter.

摘要翻译： 包括来自荧光灯系统的信号的低频干扰信号的减少可以通过光接收系统在检测过程之前通过对信号进行微分，然后使用经修改的检测处理来检测微分信号来实现。 至少一个数据信道被包括在光接收系统中，每个数据信道包括光接收换能器，该光接收换能器接收距离光接收系统一定距离的光发射机的光传输。 从传感器中，接收到的信号被差分并放大，以在接收信号被传送到检测器之前从接收到的信号中去除不想要的干扰信号。 检测器将差分和放大的信号转换成对应于最初呈现给光发射机的信号的输出数据流。

公开(公告)号：US06771443B2

公开(公告)日：2004-08-03

申请号：US09917065

申请日：2001-07-26

申请人： Gabor Szita ,  Lawrence Matthias Bryant ,  Karl Arnold Belser ,  Alan Fennema

发明人： Gabor Szita ,  Lawrence Matthias Bryant ,  Karl Arnold Belser ,  Alan Fennema

IPC分类号： G11B509

CPC分类号： G11B21/106 ,  G11B5/59633

摘要： A propagating method is provided in which timing and servo sector information is propagated throughout a data storage media that initially contains only a guide pattern. The method uses an offset between the write element and the read element in a read/write head to position and propagate the timing information. In addition, a method for circumferentially aligning timing and servo sector information is disclosed that utilizes a time delay to position the propagated timing and servo sector information. Another method for attenuating timing errors during timing and servo sector propagation to a data storage media is disclosed. Timing errors are attenuated through the use of phase locked loop circuit and measurement of the phase error detected between different tracks on the data storage media. Apparatuses implementing the methods including a storage device readable by a computer system that implements the methods are provided.

摘要翻译： 提供传播方法，其中定时和伺服扇区信息在最初仅包含引导图案的数据存储介质中传播。 该方法使用读/写头中的写元件和读元件之间的偏移来定位和传播定时信息。 此外，公开了一种用于周期地对准定时和伺服扇区信息的方法，其利用时间延迟来定位传播的定时和伺服扇区信息。 公开了在定时和伺服扇区传播到数据存储介质期间衰减定时误差的另一种方法。 定时误差通过使用锁相环电路和测量在数据存储介质上的不同轨道之间检测到的相位误差来衰减。 提供实现包括实现该方法的计算机系统可读的存储装置的方法的装置。

公开(公告)号：US06724558B2

公开(公告)日：2004-04-20

申请号：US09772578

申请日：2001-01-30

申请人： Lawrence Matthias Bryant ,  Karl Arnold Belser ,  Robert Dale Murphy

发明人： Lawrence Matthias Bryant ,  Karl Arnold Belser ,  Robert Dale Murphy

IPC分类号： G11B5596

CPC分类号： G11B21/025 ,  G11B5/59644

摘要： A method and apparatus for reading and writing data from and to a data storage disc in a data storage device. The data storage disc includes a first disc surface and second disc surface for storing data. The data storage device includes an actuator assembly configured to selectively position a first transducer over the first disc surface and a second transducer over the second disc surface, wherein the first transducer is substantially identical to the second transducer. Furthermore, each transducer includes a read element and a write element, wherein the read element is offset from the write element by at least the width of one servo track.

摘要翻译： 一种用于在数据存储设备中从数据存储盘读取数据和向数据存储盘写入数据的方法和装置。 数据存储盘包括用于存储数据的第一盘表面和第二盘表面。 数据存储装置包括被配置成选择性地将第一换能器定位在第一盘表面上方的致动器组件和在第二盘表面上的第二换能器，其中第一换能器基本上与第二换能器相同。 此外，每个换能器包括读取元件和写入元件，其中读取元件至少与一个伺服轨迹的宽度偏离写入元件。