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1. 发明授权

US07345844B2 Servo track writer with helium bearing 有权
标题翻译：带氦轴承的伺服轨道刻录机
公开(公告)号：US07345844B2
公开(公告)日：2008-03-18
申请号：US10625717
申请日：2003-07-23
申请人： Mark A. Toffle , Xu Zuo , Brent M. Weichelt , Louis J. Fioravanti
发明人： Mark A. Toffle , Xu Zuo , Brent M. Weichelt , Louis J. Fioravanti
IPC分类号： G11B33/14 , F16C32/06
CPC分类号： G11B19/2009 , F16C32/06 , G11B5/59633 , G11B33/14
摘要： A servo track writer assembly and method are provided for recording servo pattern information on a disc. The servo track writer assembly includes a spindle assembly, an actuator assembly and a servo recording head. The spindle assembly has a hub, which supports the disc and a spindle motor for rotating the hub. The actuator assembly has an actuator arm supported by an actuator bearing for positioning the actuator arm relative to the disc. At least one of the spindle motor and the actuator bearing has a gas-lubricated bearing with a working fluid, which includes helium. The servo recording head is supported by the actuator arm relative to the disc to record the servo pattern information on the disc as the spindle motor rotates the disc and the actuator bearing positions the actuator arm.
摘要翻译：提供了一种用于在盘上记录伺服模式信息的伺服记录器组件和方法。伺服记录器组件包括主轴组件，致动器组件和伺服记录头。主轴组件具有支撑盘的轮毂和用于旋转毂的主轴电机。致动器组件具有由致动器轴承支撑的致动器臂，用于相对于盘定位致动器臂。主轴电动机和致动器轴承中的至少一个具有带有工作流体的气体润滑轴承，其包括氦。伺服记录头由致动器臂相对于盘支撑，以在主轴电机旋转盘并且致动器轴承定位致动器臂时将伺服模式信息记录在盘上。

2. 发明申请

US20080158728A1 WRITER WITH HELIUM BEARING 有权
标题翻译：带有轴承的WRITER
公开(公告)号：US20080158728A1
公开(公告)日：2008-07-03
申请号：US12050070
申请日：2008-03-17
申请人： Mark A. Toffle , Xu Zuo , Brent M. Weichelt , Louis J. Fioravanti
发明人： Mark A. Toffle , Xu Zuo , Brent M. Weichelt , Louis J. Fioravanti
IPC分类号： G11B33/14
CPC分类号： G11B19/2009 , F16C32/06 , G11B5/59633 , G11B33/14
摘要： Storing data to a storage medium with a device that has moving parts supported by a bearing and which maintains separation between opposing bearing surfaces in the bearing with a pressurized working fluid.
摘要翻译：将数据存储到具有由轴承支撑的移动部件的装置的存储介质中，并且利用加压工作流体在轴承中相对的支承表面之间保持分离。

3. 发明授权

US09236083B2 Writer with working fluid bearing 有权
标题翻译：作业者与工作流体轴承
公开(公告)号：US09236083B2
公开(公告)日：2016-01-12
申请号：US12050070
申请日：2008-03-17
申请人： Mark A. Toffle , Xu Zuo , Brent M. Weichelt , Louis J. Fioravanti
发明人： Mark A. Toffle , Xu Zuo , Brent M. Weichelt , Louis J. Fioravanti
IPC分类号： G11B33/14 , G11B19/20 , G11B5/596 , F16C32/06
CPC分类号： G11B19/2009 , F16C32/06 , G11B5/59633 , G11B33/14
摘要： Storing data to a storage medium with a device that has moving parts supported by a bearing and which maintains separation between opposing bearing surfaces in the bearing with a pressurized working fluid.
摘要翻译：将数据存储到具有由轴承支撑的移动部件的装置的存储介质中，并且利用加压工作流体在轴承中相对的支承表面之间保持分离。

4. 发明授权

US06665633B2 Relation of rotational vibration stimuli to performance of a hard disc drive 失效
公开(公告)号：US06665633B2
公开(公告)日：2003-12-16
申请号：US09951565
申请日：2001-09-12
申请人： Louis J. Fioravanti , Kenneth L. Pottebaum , Michael P. Foster , Glen D. Almgren
发明人： Louis J. Fioravanti , Kenneth L. Pottebaum , Michael P. Foster , Glen D. Almgren
IPC分类号： G06F1100
CPC分类号： G11B25/043 , G11B5/5582 , G11B5/59627 , G11B20/10 , G11B33/08
摘要： In relating rotational vibration stimuli of a mechanical mounting environment to the performance of a disc drive, a method and system are provided of which the steps are selecting a sample disc drive of a drive species and mounting the sample disc drive within the mechanical mounting environment; attaching an accelerometer to the sample disc drive for measuring rotational vibration; inducing a predetermined rotational vibration stimuli into the mechanical mounting; collecting vibration data with the accelerometer for use in determining the rotational vibration index for the mechanical mounting environment; providing a rotational vibration index for the drive species for comparison with the determined rotational vibration index; and comparing the rotational vibration index calculated for the mechanical mounting environment with the rotational vibration index of the drive species to relate the rotational vibration stimuli of the mechanical mounting environment to the performance of the sample disc drive.

5. 发明授权

US06466392B1 Head flight characterization using a non-contact voltmeter 失效
标题翻译：使用非接触式电压表进行头部飞行表征
公开(公告)号：US06466392B1
公开(公告)日：2002-10-15
申请号：US09396099
申请日：1999-09-14
申请人： Louis J. Fioravanti
发明人： Louis J. Fioravanti
IPC分类号： G11B2102
CPC分类号： G11B5/40 , G11B5/012 , G11B5/6005 , G11B21/21 , G11B33/10
摘要： A method for evaluating head flight characteristics in a disc drive includes placing a non-contact voltmeter (NCV) probe into close proximity to a disc, the probe sensing disc potential in relation to a quantity of electrical charge present on the disc. The disc is accelerated with the head initially remaining in contact with the disc, and the disc potential is monitored until a rotational velocity is achieved sufficient to cause the head to separate from the disc. A head take off velocity is thereafter determined in relation to a detected change in the measured disc potential. A head touchdown velocity is similarly determined by initially accelerating the disc to separate the head therefrom, and then monitoring the disc potential as the disc is decelerated to bring the head back into contact with the disc.
摘要翻译：用于评估盘驱动器中的头部飞行特性的方法包括将非接触式电压表（NCV）探针放置在靠近盘的位置，所述探针相对于盘上存在的电荷量感测盘电位。盘头被加速，头部最初保持与盘接触，并且监视盘电位，直到达到足以使头与盘分离的旋转速度。此后，相对于检测到的盘电位的变化确定头部起飞速度。头部触地速度同样地通过首先加速盘来分离头部，然后在盘减速时监视盘的电位以使头部回头与盘接触来确定。

6. 发明授权

US06914742B1 Data storage assembly with robust servo writing methodology 失效
标题翻译：具有强大的伺服写入方法的数据存储组件
公开(公告)号：US06914742B1
公开(公告)日：2005-07-05
申请号：US10126766
申请日：2002-04-19
申请人： Louis J. Fioravanti , Frank W. Bernett
发明人： Louis J. Fioravanti , Frank W. Bernett
IPC分类号： G11B5/596 , G11B25/04 , G11B33/14 , G11B21/02
CPC分类号： G11B25/043 , G11B5/59633 , G11B33/14
摘要： A method for writing servo information to a data storage medium adapted for use in a data storage device wherein the medium is operably moved in ambient air at a nominal speed in data reading and writing relationship with a data transfer member. In one embodiment the method for writing comprises placing the medium adjacent a data transfer member in an enclosure containing a gaseous environment as a selected state; moving the medium to impart velocity to the gaseous environment which, in turn, impacts the data transfer member with forces flying the writing member at a first fly height from the medium; and subsequently introducing a gas having a density less than the gaseous environment into the enclosure, thereby responsively reducing the fly height of the writing member to a selected height less than the first fly height.
摘要翻译：一种将伺服信息写入适于在数据存储装置中使用的数据存储介质的方法，其中介质以与数据传送构件的数据读取和写入关系的标称速度以环境空气可操作地移动。在一个实施例中，用于书写的方法包括：将介质邻近数据传送构件放置在包含气态环境的外壳中作为选定状态; 移动介质以赋予气体环境的速度，这又使得数字传送构件随着从介质移动第一飞行高度的力而撞击书写构件; 随后将具有小于气体环境的密度的气体引入外壳中，从而响应地将书写构件的飞行高度减小到小于第一飞行高度的选定高度。

7. 发明授权

US06757622B2 Predicting disc drive acoustic sound power from mechanical vibration 失效
标题翻译：从机械振动预测磁盘驱动器的声音功率
公开(公告)号：US06757622B2
公开(公告)日：2004-06-29
申请号：US10176555
申请日：2002-06-20
申请人： Louis J. Fioravanti
发明人： Louis J. Fioravanti
IPC分类号： G01B528
CPC分类号： G11B5/00
摘要： A method includes selecting a subset of predictive frequencies from a set of disc drive frequencies consisting essentially of operational driving frequencies in the disc drive and system resonance frequencies in the disc drive. Correlation constants are determined that correlate sound power to mechanical vibration magnitudes at each of the frequencies in the subset of predictive frequencies. The method further includes acquiring mechanical vibration data from the disc drive while operating the disc drive and determining predictive vibration magnitudes at each of the frequencies in the subset of predictive frequencies from the mechanical vibration data. Finally, the method includes determining an estimated acoustic sound power value for the disc drive from the determined correlation constants and the predictive vibration magnitudes. A testing system determines an estimated acoustic sound power value for a subject disc drive from predetermined correlation constants and vibration magnitudes.
摘要翻译：一种方法包括从基本上由盘驱动器中的操作驱动频率和盘驱动器中的系统谐振频率组成的一组盘驱动频率中选择预测频率的子集。确定相关常数，其将声功率与预测频率子集中的每个频率处的机械振幅相关联。该方法还包括在操作盘驱动器的同时从盘驱动器获取机械振动数据，并根据机械振动数据确定预测频率子集中每个频率处的预测振幅。最后，该方法包括从所确定的相关常数和预测振幅度确定盘驱动器的估计声音功率值。测试系统根据预定的相关常数和振幅来确定对象盘驱动器的估计声音功率值。

8. 发明授权

US06646821B2 Early leak detection system for a disc drive containing a low-density gas 有权
公开(公告)号：US06646821B2
公开(公告)日：2003-11-11
申请号：US10071011
申请日：2002-02-07
申请人： Frank William Bernett , Louis J. Fioravanti
发明人： Frank William Bernett , Louis J. Fioravanti
IPC分类号： G11B2736
CPC分类号： G11B33/1486 , G11B5/6005 , G11B25/043 , G11B33/14
摘要： A method of detecting that a concentration of a low-density gas such as helium in a disc drive is in danger of reaching an unacceptable level includes monitoring a signal varying in response to variations in the concentration of the gas in the disc drive. A criterion is determined based on the signal where the criterion indicates that the gas level is about to reach the unacceptable level. Finally, a flag is set once the criterion is met. A disc drive containing a low-density gas such as helium includes a sensor within the drive that produces a signal responsive to variations in the concentration of the low-density gas in the disc drive. The disc drive also includes a processor that monitors the signal and sets a flag if a predetermined criterion is met.

9. 发明授权

US06483657B1 Head flight characterization using thermal asperity detection 失效
标题翻译：使用热凹凸检测的头部飞行特征
公开(公告)号：US06483657B1
公开(公告)日：2002-11-19
申请号：US09395456
申请日：1999-09-14
申请人： Louis J. Fioravanti , Kent D. Dillin
发明人： Louis J. Fioravanti , Kent D. Dillin
IPC分类号： G11B2102
CPC分类号： G11B5/6005 , G11B21/21
摘要： A method for evaluating head flight characteristics in a disc drive includes accelerating a disc to an initial rotational velocity sufficient to aerodynamically support a head over the disc at a nominal flying height. A read bias current is applied to the head to generate a readback signal determined in relation to the voltage drop across the head. A thermal asperity threshold level is applied which the readback signal exceeds in response to contact between the head and the disc as the disc rotates. A head touchdown velocity is determined by decelerating the disc to decrease the flying height of the head and detecting subsequent contact between the head and the disc when the readback signal exceeds the thermal asperity threshold level. A head take off velocity is similarly determined by monitoring the head readback signal as the disc is accelerated and lifts off the disc.
摘要翻译：一种用于评估盘驱动器中的头部飞行特性的方法包括将盘加速到足以在标称飞行高度上空气动力地支撑盘的盘的初始旋转速度。读偏置电流被施加到头以产生相对于头部上的电压降确定的回读信号。应用热凹凸阈值水平，回读信号响应于盘旋转时头与盘之间的接触而超过。通过减速盘来降低头部的飞行高度并且当回读信号超过热不平坦阈值水平时检测头部和盘之间的后续接触来确定头部触地速度。通过在光盘加速并提起光盘时监视磁头回读信号，类似地确定磁头起飞速度。

10. 发明授权

US06404580B1 Writing servo data on stationary discs 有权
标题翻译：在固定光盘上写入伺服数据
公开(公告)号：US06404580B1
公开(公告)日：2002-06-11
申请号：US09395412
申请日：1999-09-14
申请人： Louis J. Fioravanti
发明人： Louis J. Fioravanti
IPC分类号： G11B2102
CPC分类号： G11B5/59633
摘要： Apparatus and method for writing servo data to a disc of a disc drive. A disc pack comprising a disc and a spindle motor is mounted in a stationary disc servo track writing (STW) fixture, which maintains the disc in a nonrotating, stationary relation while rotating a servo write head around a circumference of the disc to write the servo data to the disc. Once the servo data are written and verified, the disc is removed from the STW fixture and installed into a disc drive. The STW fixture preferably comprises a stationary base portion, top and bottom clamp members which extend from the base portion to hold the disc in the nonrotating, fixed relation, and a rotatable enclosure, adjacent the base portion, which supports the servo write head and rotates with respect to the base portion using air bearings.
摘要翻译：将伺服数据写入盘驱动器的盘的装置和方法。包括盘和主轴电动机的盘组安装在固定盘伺服轨迹写入（STW）固定装置中，其将盘保持在非旋转静止关系，同时围绕盘的圆周旋转伺服写头以写入伺服数据到光盘。伺服数据写入和验证后，将光盘从STW夹具中取出并安装到光盘驱动器中。 STW夹具优选地包括固定基部，顶部和底部夹紧构件，其从基部延伸以将盘保持在非旋转固定关系中，以及邻近基部的可旋转外壳，其支撑伺服写入头并旋转相对于使用空气轴承的基部。

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