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公开(公告)号：US5909333A
公开(公告)日：1999-06-01
申请号：US878711
申请日：1997-06-18
申请人： John Stewart Best , Wen-Wei Chiang , Steven Robert Hetzler , Donald Edward Horne , Chih-Kung Lee , Vincent Marrello
发明人： John Stewart Best , Wen-Wei Chiang , Steven Robert Hetzler , Donald Edward Horne , Chih-Kung Lee , Vincent Marrello
CPC分类号： G11B21/083 , G11B5/5534
摘要： A non-invasive servo-write system for use in a data recording disk drive. The system measures actuator position and generates a reference clock using semiconductor lasers. Internal position references are provided by reflective diffraction gratings affixed to the actuator arm and the spindle hub. Wavefront reconstruction optics correct for aberrations in the gratings. Optical sensors detect differential changes in the diffraction patterns created by the gratings, eliminating sensitivity to frequency drift. Decode electronics convert optical sensor data into an actuator position measurement. Control electronics drive the voice coil motor within the disk drive, which positions the write transducer to record servo information provided in a servo pattern generator. Transparent windows in the head-disk-assembly cover allow the servo-writer to write drives which are completely assembled and sealed.
摘要翻译： 一种用于数据记录磁盘驱动器的非侵入式伺服写入系统。 该系统测量致动器位置，并使用半导体激光器产生参考时钟。 内部位置参考由固定在执行器臂和主轴毂上的反射衍射光栅提供。 波前重构光学校正光栅中的像差。 光学传感器检测由光栅产生的衍射图案的差异变化，消除了对频率漂移的敏感性。 解码电子元件将光学传感器数据转换为执行器位置测量。 控制电子装置驱动磁盘驱动器内的音圈电机，其将写入传感器定位以记录提供在伺服模式发生器中的伺服信息。 头盘组件盖中的透明窗口允许伺服写入器写入完全组装和密封的驱动器。
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2.发明授权
公开(公告)号：US4787077A
公开(公告)日：1988-11-22
申请号：US90636
申请日：1987-08-28
申请人： Roger W. Barton , Martin Y. Chen , Charles R. Davis , Grace L. Gorman , Vincent Marrello , Kurt A. Rubin
发明人： Roger W. Barton , Martin Y. Chen , Charles R. Davis , Grace L. Gorman , Vincent Marrello , Kurt A. Rubin
IPC分类号： G11B7/0045 , G11B7/243 , G11C13/02 , G11B7/24
CPC分类号： G11B7/00454 , G11B7/243 , G11B2007/24312 , G11B2007/24316 , Y10S430/146
摘要： An optical storage system has an information containing film of a material which has a crystallization temperature between 100.degree. C. and 400.degree. C. and can be switched between the amorphous and the crystalline states. Both the amorphous and crystalline states are substantially a single phase where the stoichiometric ratio of the material remains unchanged. Spots on the film is heated with a circular laser beam with a controlled pulse duration and intensity to melt the material in the spots. The spots are quenched at one rate to produce the amorphous state, and in a second revolution of the disk, at a different rate to produce the crystalline state.
摘要翻译： 光学存储系统具有包含结晶温度在100℃至400℃之间的材料的膜的信息，并且可以在无定形状态和结晶状态之间切换。 无定形和结晶状态都基本上是单相，其中材料的化学计量比保持不变。 膜上的斑点用具有受控脉冲持续时间和强度的圆形激光束加热以熔化斑点中的材料。 斑点以一个速率淬火以产生非晶态，并且在盘的第二次旋转中以不同的速率产生晶体状态。
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3.发明授权
公开(公告)号：US4275336A
公开(公告)日：1981-06-23
申请号：US974180
申请日：1979-03-05
申请人： Vincent Marrello , Aare Onton , Wolfgang Ruhle
发明人： Vincent Marrello , Aare Onton , Wolfgang Ruhle
CPC分类号： G09G3/30
摘要： A method for improving the memory effect and brightness of an alternating current (AC) excited thin film electroluminensence (ACTEL) device is described. A typical ACTEL device has a thin luminescent layer made of ZnS thin film doped with Mn which is sandwiched between two dielectric layers. ACTEL devices exhibit a brightness versus voltage amplitude hysteresis loop which is commonly referred to as the memory effect. The application of a hybrid AC excitation waveform to the ACTEL device provides increased brightness and improved memory effect stability. The hybrid waveform has an initial portion that is sufficiently high for efficient carrier generation and a remaining waveform portion that is at a lower level than the initial portion for charge collection and holding purposes.
摘要翻译： 描述了一种用于改善交流（AC）激发的薄膜电致发光（ACTEL）装置的记忆效应和亮度的方法。 典型的ACTEL装置具有由掺杂有Mn的ZnS薄膜制成的薄的发光层，其夹在两个电介质层之间。 ACTEL设备表现出通常被称为记忆效应的亮度对电压振幅磁滞回线。 将混合AC激励波形应用于ACTEL装置提供增加的亮度和改善的记忆效应稳定性。 混合波形具有足够高的初始部分，用于有效载波产生，并且剩余波形部分处于比初始部分低的电荷收集和保存目的的较低水平。
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