公开(公告)号：US06298545B1

公开(公告)日：2001-10-09

申请号：US09459140

申请日：1999-12-10

申请人： Khosrow Mohajerani ,  Joseph M. Sampietro ,  Anoush M. Fard ,  Jeffrey G. Barina ,  Muhammad A. Hawwa ,  LeRoy A. Volz ,  Tien Q. Le ,  Daniel R. Vigil

发明人： Khosrow Mohajerani ,  Joseph M. Sampietro ,  Anoush M. Fard ,  Jeffrey G. Barina ,  Muhammad A. Hawwa ,  LeRoy A. Volz ,  Tien Q. Le ,  Daniel R. Vigil

IPC分类号： G11B542

CPC分类号： G11B5/54 ,  G11B5/4873 ,  G11B5/5552 ,  G11B21/085 ,  G11B21/24 ,  Y10T29/49025

摘要： A system for positioning a transducing head in a disc drive device over a selected track of a rotatable disc includes an actuator arm which is rotatable about an axis, a head suspension mechanism connected to the actuator arm, and a slider carrying a transducing head and supported by the head suspension mechanism. A low resolution motor moves the actuator arm about the axis to effect coarse movement of the head between tracks of the disc. A piezoelectric element is embedded in the actuator arm to distort the arm to effect fine positioning of the head. Control circuitry distributes electrical signals to the low resolution motor and the piezoelectric element to selectively control movement thereof. The piezoelectric element is embedded in the actuator arm by removing a predetermined amount of material from the actuator arm and bonding the piezoelectric element in the resulting space in the actuator arm.

摘要翻译： 用于将转换头定位在可旋转盘的选定轨道上的盘驱动装置中的系统包括可围绕轴旋转的致动器臂，连接到致动器臂的头悬挂机构，以及承载换能头的滑块 通过头悬挂机构。 低分辨率马达使致动器臂围绕轴线移动，以使头部在盘的轨道之间进行粗略移动。 压电元件嵌入在致动器臂中以扭曲臂以实现头部的精细定位。 控制电路将电信号分配到低分辨率电动机和压电元件以选择性地控制其运动。 通过从致动器臂中移除预定量的材料并将压电元件接合在致动器臂中的所得空间中，将压电元件嵌入致动器臂中。

公开(公告)号：US5557550A

公开(公告)日：1996-09-17

申请号：US212201

申请日：1994-03-11

申请人： Daniel R. Vigil ,  LeRoy A. Volz

发明人： Daniel R. Vigil ,  LeRoy A. Volz

IPC分类号： G11B5/55 ,  G11B19/04 ,  H02H5/04 ,  H02H9/00 ,  G08B21/00

CPC分类号： G11B19/04 ,  G11B5/5565 ,  H02H5/044

摘要： Junction overheating in an actuator controller IC used to position read/write heads in a magnetic disc storage device is prevented by temporarily decreasing actuator controller IC output signal duty cycle when excessive junction temperature is present. The present invention includes means for monitoring and comparing actuator controller IC junction temperature to a reference temperature, and for outputting a warning signal when junction temperature exceeds the reference temperature by too large a margin. The present invention introduces a time delay into the output signal from the actuator controller IC when the warning signal is present. The time delay may be fixed or variable in duration, and may be varied progressively in duration. The time delay may be generated using circuitry, software, firmware, or a combination thereof.

摘要翻译： 用于将读/写磁头定位在磁盘存储装置中的致动器控制器IC中的结过热通过在存在过多结温时暂时降低致动器控制器IC输出信号占空比来防止。 本发明包括用于监视和比较致动器控制器IC结温与参考温度的装置，并且当结温超过参考温度时输出警告信号太大的余量。 当存在警告信号时，本发明引入来自致动器控制器IC的输出信号的时间延迟。 时间延迟可以是固定的或持续时间可变的，并且可以在持续时间内逐渐变化。 可以使用电路，软件，固件或其组合来生成时​​间延迟。

公开(公告)号：US5185681A

公开(公告)日：1993-02-09

申请号：US591037

申请日：1990-09-28

申请人： Leroy A. Volz ,  Haim Nissimov

发明人： Leroy A. Volz ,  Haim Nissimov

IPC分类号： G11B5/55 ,  G11B5/596

CPC分类号： G11B5/59627 ,  G11B5/5565

摘要： A thermal offset compensation system is provided for use in a computer disk drive unit have a dedicated servo surface on one of a plurality of memory storage disks. The disk drive unit has a plurality of electromagnetic heads displaced as a group relative to respective storage surfaces on the disks to read and/or write data in concentric tracks. One of the heads comprises a servo head for reading servo data prerecorded onto the dedicated servo surface to align the remaining heads relative to corresponding cylinders of data tracks. Thermally induced offsets of the data heads relative to the servo head are measured on one or more calibration cylinders located in the inner and outer guard bands of each storage surface. The average offset of the data heads, taken collectively, is determined and subsequently compensated-for when any data head is utilized to read or write data on a selected track. The thermal compensation offset is determined during a spin-up operation of the disk drive unit, and then periodically thereafter upon receipt of any host command by the disk drive unit.

摘要翻译： 提供热偏移补偿系统用于计算机磁盘驱动单元，其具有在多个存储器盘之一上的专用伺服表面。 磁盘驱动器单元具有多个电磁头相对于磁盘上的相应存储表面作为一组移位以在同心磁道中读取和/或写入数据。 头中的一个包括用于读取预先记录在专用伺服表面上的伺服数据的伺服头，用于相对于数据轨道的相应气缸对准剩余的头。 在位于每个存储表面的内部和外部保护带中的一个或多个校准气缸上测量数据磁头相对于伺服磁头的热感测偏移。 当采用任何数据头来读取或写入所选轨道上的数据时，确定并随后补偿数据头的平均偏移量。 在磁盘驱动单元的启动操作期间确定热补偿偏移，然后在由盘驱动单元接收到任何主机命令之后周期性地定期。

公开(公告)号：US4982298A

公开(公告)日：1991-01-01

申请号：US226891

申请日：1988-08-01

申请人： LeRoy A. Volz ,  Haim Nissimov

发明人： LeRoy A. Volz ,  Haim Nissimov

IPC分类号： G11B21/08 ,  G05D3/12 ,  G11B5/55

CPC分类号： G11B5/5547

摘要： An adaptive velocity profile system is provided for variably controlling a disk drive head in a computer disk drive or the like, to obtain substantially minimum seek times in accordance with variable operating conditions. The system monitors actual performance of the head in the course of a seek step during which the head is displaced relative to a memory storage disk for alignment with a selected track on the disk, and wherein the head performance is variable in response to a range of parameters such as temperature, power supply voltage, mechanical stiffness, etc. The monitored head performance as represented, for example, by head acceleration at the initiation of a seek step and/or by a track address mismatch at the conclusion of a seek step is used, in the preferred form, to select an appropriate one of several available velocity profiles for controlled head deceleration at the conclusion of a subsequent seek step. The selected velocity profile is chosen for obtaining the fastest possible seek times consistent with current operating conditions.

公开(公告)号：US06738322B2

公开(公告)日：2004-05-18

申请号：US10109431

申请日：2002-03-27

申请人： James R. Amble ,  Herman A. Ferrier ,  LeRoy A. Volz ,  Andrew J. Diaber

发明人： James R. Amble ,  Herman A. Ferrier ,  LeRoy A. Volz ,  Andrew J. Diaber

IPC分类号： G11B700

CPC分类号： G11B7/0938 ,  G11B7/00781 ,  G11B7/24038 ,  G11B2007/0009 ,  G11B2007/0013

摘要： The disclosed device is directed towards an optical data storage system. The optical data storage system comprises an optical medium including a servo plane and at least one data plane. A first laser is positioned to generate a servo laser beam and address the servo plane with a first servo focus spot. A second laser is positioned to generate a read-write laser beam and address the data plane with a second read-write focus spot. A first servo system is associated with the first laser and is configured to provide focus and tracking error correction according to servo information associated with the servo plane. A second servo system is associated with the second laser and is configured to provide focus and tracking error correction according to servo information associated with the data plane.

摘要翻译： 所公开的设备指向光学数据存储系统。 光学数据存储系统包括包括伺服平面和至少一个数据平面的光学介质。 定位第一激光器以产生伺服激光束并用第一伺服焦点对伺服平面进行寻址。 定位第二激光器以产生读写激光束并用第二读写焦点对数据平面进行寻址。 第一伺服系统与第一激光器相关联，并且被配置为根据与伺服平面相关联的伺服信息提供聚焦和跟踪误差校正。 第二伺服系统与第二激光器相关联，并且被配置为根据与数据平面相关联的伺服信息提供聚焦和跟踪误差校正。

公开(公告)号：US06574174B1

公开(公告)日：2003-06-03

申请号：US09549075

申请日：2000-04-15

申请人： James R. Amble ,  Lambrerrtus Hesselink ,  Tokyuki Honda ,  Mark E. McDonald ,  Michael V. Morelli ,  Andrew J. Daiber ,  Herman A. Ferrier ,  Sanjoy Ghose ,  Thomas A. Kridl ,  Matthew Lipson ,  Shunichi Nishimura ,  Sergei Sochava ,  LeRoy A. Volz

发明人： James R. Amble ,  Lambrerrtus Hesselink ,  Tokyuki Honda ,  Mark E. McDonald ,  Michael V. Morelli ,  Andrew J. Daiber ,  Herman A. Ferrier ,  Sanjoy Ghose ,  Thomas A. Kridl ,  Matthew Lipson ,  Shunichi Nishimura ,  Sergei Sochava ,  LeRoy A. Volz

IPC分类号： G11B700

CPC分类号： G11B7/0065 ,  G11B7/007 ,  G11B7/0938 ,  G11B7/24 ,  G11B7/2433 ,  G11B7/245 ,  G11B7/246 ,  G11B7/2472 ,  G11B7/252 ,  G11B7/2595 ,  G11B2007/0013

摘要： An optical information storage system using optical storage media including multiple data layers or stacks wherein each of the multiple data stacks has a storage density comparable to a conventional single layer optical disk. The optical data storage system comprises an optical medium having a single dedicated servo layer and multiple data stacks which each contain an embedded servo format, a servo laser beam positioned to maintain a first focus point on the dedicated servo reference layer, a read-write laser beam positioned to maintain a second focus point on one of the data stacks, a first, dedicated servo system which provides focus and tracking error correction according to error signals generated from the dedicated servo layer, and a second, embedded servo system which provides focus and tracking error correction according to error signals generated from the data stacks. The dedicated servo layer, in different embodiments of the invention, may be positioned either below or above the data stacks in the optical medium, or interposed between data stacks. The data stacks may comprise discrete physical data layers or “virtual” data layers defined by a format hologram. The servo and read-write lasers may differ in wavelength and/or polarization.

摘要翻译： 一种使用包括多个数据层或堆叠的光学存储介质的光学信息存储系统，其中多个数据堆栈中的每一个具有与常规单层光盘相当的存储密度。 光学数据存储系统包括具有单个专用伺服层的光学介质和各自包含嵌入式伺服格式的多个数据堆栈，定位成将第一焦点保持在专用伺服参考层上的伺服激光束，读写激光器 光束定位成在数据堆叠之一上保持第二焦点，第一专用伺服系统，其根据从专用伺服层产生的误差信号提供聚焦和跟踪误差校正;以及第二嵌入式伺服系统，其提供焦点和 根据从数据堆产生的误差信号进行跟踪误差校正。 在本发明的不同实施例中的专用伺服层可以位于光学介质中的数据堆的下方或上方，或者位于数据堆之间。 数据堆可以包括由格式全息图定义的离散物理数据层或“虚拟”数据层。 伺服和读写激光器的波长和/或极化可能不同。

公开(公告)号：US5867341A

公开(公告)日：1999-02-02

申请号：US594114

申请日：1996-01-30

申请人： LeRoy A. Volz ,  Stephen R. Manz ,  Raymond E. Hurst

发明人： LeRoy A. Volz ,  Stephen R. Manz ,  Raymond E. Hurst

IPC分类号： G11B21/10 ,  G11B5/596

CPC分类号： G11B5/59655

摘要： A method and apparatus determining head position of a data transducer head relative to a selected one track of a multiplicity of concentric tracks within a magnetic/disc drive is provided. At least one prerecorded servo sector within a data track includes four time staggered servo bursts. The first pair and second pair of servo bursts are radially offset from each other by generally a burst width such that an edge from each of the pair are substantially co-linear in forming a track null. The first pair is radially offset from the second pair by one-half of the burst width. The first pair is read to determine a first relative amplitude therebetween, and the second pair is read to determine a second relative amplitude therebetween. Additionally, the radially offset and time staggered servo bursts prerecorded on the servo sector can be of varying width and numbered to create the plurality of track nulls within a data track about which the head can be positioned.

摘要翻译： 提供了一种确定数据换能器头相对于磁/盘驱动器内的多个同心轨道的选定的一个轨道的头部位置的方法和装置。 数据轨道内的至少一个预先记录的伺服扇区包括四个交错的伺服脉冲串。 第一对和第二对伺服脉冲串通常以突发宽度彼此径向偏移，使得来自该对中的每一对的边缘在形成轨道零点时基本上是共线的。 第一对从第二对径向偏移突发宽度的一半。 读取第一对以确定它们之间的第一相对幅度，并且读取第二对以确定它们之间的第二相对幅度。 此外，预先记录在伺服扇区上的径向偏移和时间交错的伺服脉冲串可以具有变化的宽度并被编号以在数据轨道内创建多个磁道空值，磁头可以围绕磁头定位。

公开(公告)号：US6052251A

公开(公告)日：2000-04-18

申请号：US836292

申请日：1997-05-12

申请人： Khosrow Mohajerani ,  Joseph M. Sampietro ,  Anoush M. Fard ,  Jeffrey G. Barina ,  Muhammad A. Hawwa ,  LeRoy A. Volz ,  Tien Q. Le ,  Daniel R. Vigil

发明人： Khosrow Mohajerani ,  Joseph M. Sampietro ,  Anoush M. Fard ,  Jeffrey G. Barina ,  Muhammad A. Hawwa ,  LeRoy A. Volz ,  Tien Q. Le ,  Daniel R. Vigil

IPC分类号： G11B5/54 ,  G11B5/55 ,  G11B21/08 ,  G11B21/24

CPC分类号： G11B5/54 ,  G11B21/085 ,  G11B21/24 ,  G11B5/4873 ,  G11B5/5552 ,  Y10T29/49025

摘要： A system for positioning a transducing head in a disc drive device over a selected track of a rotatable disc includes an actuator arm which is rotatable about an axis, a head suspension mechanism connected to the actuator arm, and a slider carrying a transducing head and supported by the head suspension mechanism. A low resolution motor moves the actuator arm about the axis to effect coarse movement of the head between tracks of the disc. A piezoelectric element is embedded in the actuator arm to distort the arm to effect fine positioning of the head. Control circuitry distributes electrical signals to the low resolution motor and the piezoelectric element to selectively control movement thereof. The piezoelectric element is embedded in the actuator arm by removing a predetermined amount of material from the actuator arm and bonding the piezoelectric element in the resulting space it the actuator arm.

摘要翻译： PCT No.PCT / US97 / 07892 Sec。 371日期：1998年3月19日 102（e）1998年3月19日PCT PCT 1997年5月12日PCT公布。 公开号WO97 / 32044 日期1997年9月4日用于将转换头定位在可旋转盘的选定轨道上的盘驱动装置中的系统包括可围绕轴线旋转的致动器臂，连接到致动器臂的头悬挂机构和承载 转头并由头悬挂机构支撑。 低分辨率马达使致动器臂围绕轴线移动，以使头部在盘的轨道之间进行粗略移动。 压电元件嵌入在致动器臂中以扭曲臂以实现头部的精细定位。 控制电路将电信号分配到低分辨率电动机和压电元件以选择性地控制其运动。 通过从致动器臂移除预定量的材料并将压电元件接合在致动臂的所得空间中，将压电元件嵌入致动器臂中。

公开(公告)号：US3984862A

公开(公告)日：1976-10-05

申请号：US547255

申请日：1975-02-05

申请人： LeRoy A. Volz

发明人： LeRoy A. Volz

IPC分类号： H04N17/00 ,  H04N9/62 ,  H04N7/02

CPC分类号： H04N17/00

摘要： The overall response of a television receiver is displayed on the face of the cathode ray tube of the receiver involved by test apparatus which requires electrical connection only to the antenna terminals of the television receiver and the mounting of a small light sensor unit onto the face of the cathode ray tube. The test apparatus generates an amplitude modulated signal having a video carrier frequency corresponding to that of a selected television channel. The amplitude modulated video carrier frequency signal includes an envelope containing synchronizing pulses for operating the sweep circuits of the television receiver in a normal manner and which clamps the automatic gain control circuits of the receiver to a desired level and a video signal to produce a given brightness reference background on the tube face which is preferably gray or black. Periodically, the main video carrier is interrupted for the generation of a constant amplitude test carrier frequency signal. This test carrier frequency signal progressively varies in frequency during successive fields, so the test carrier frequencies will scan through the entire band of frequencies for the channel involved. The points in time at which the main video carrier is periodically interrupted is controlled so that the beam trace or traces produce a rectangle of light resulting from the video signal detected from the test carrier frequency. This rectangle of light appears opposite the light sensor unit. The brightness of the rectangle of light during each field is a measure of the overall response of the radio frequency and intermediate frequency tuned circuits in the receiver at the test carrier frequency involved. The light sensor output from each field is stored and then utilized to modulate the video carrier to produce a response curve on a curve display area of the cathode ray tube.

摘要翻译： 电视接收机的整体响应显示在与仅由电视接收机的天线端子电连接并且将小型光传感器单元安装在面板上的测试装置所涉及的接收器的阴极射线管的表面上 阴极射线管。 测试装置产生具有对应于所选择的电视频道的视频载波频率的幅度调制信号。 幅度调制视频载波频率信号包括一个包含用于以正常方式操作电视接收机的扫描电路的同步脉冲的包络，并将接收机的自动增益控制电路钳位到期望的电平和视频信号以产生给定的亮度 在管面上的参考背景优选为灰色或黑色。 周期性地，主视频载波被中断以产生恒定幅度测试载波频率信号。 该测试载波频率信号在连续的场中频率逐渐变化，因此测试载波频率将扫描所涉及的信道的整个频带。 控制主视频载体周期性中断的时间点，使得光束轨迹或迹线产生由从测试载波频率检测的视频信号产生的光矩形。 这个矩形的光线与光传感器单元相对。 每个场中光矩形的亮度是所涉及的测试载波频率的接收机中射频和中频调谐电路的整体响应的度量。 存储来自每个场的光传感器输出，然后用于调制视频载体，以在阴极射线管的曲线显示区域上产生响应曲线。