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    NEUTRALIZING FLYING HEIGHT SENSITIVITY OF THERMAL POLE-TIP PROTRUSION OF MAGNETIC SLIDER
    6.
    发明申请
    NEUTRALIZING FLYING HEIGHT SENSITIVITY OF THERMAL POLE-TIP PROTRUSION OF MAGNETIC SLIDER 审中-公开
    磁悬浮液热点温度传感器的飞行高度敏感度中和

    公开(公告)号：US20090268335A1

    公开(公告)日：2009-10-29

    申请号：US12110235

    申请日：2008-04-25

    Applicant: Fu-Ying HUANG ,  Jia-Yang Juang ,  Timothy C. Strand

    Inventor： Fu-Ying HUANG ,  Jia-Yang Juang ,  Timothy C. Strand

    IPC: G11B21/02

    CPC classification number: G11B5/3136 ,  G11B5/3133 ,  G11B5/40 ,  G11B5/6005 ,  G11B5/6064 ,  G11B5/607

    Abstract: A method for neutralizing the flying height sensitivity associated with thermal pole-tip protrusion (T-PTP) of an air bearing slider comprises creating head material data and air bearing surface (ABS) compensation data, based on which a head/ABS design is created. The head material data comprises at least one material property that is dependent on the manner in which the material is fabricated, such as the coefficient of thermal expansion of a material deposited using a certain deposition process. The ABS compensation data comprises data about how respective ABS features affect air bearing pressure and, therefore, ABS compensation. A protrusion profile is determined for the head/ABS design, and whether or not this protrusion profile meets particular design criteria is then determined. The head/ABS creating and determining process can be iterated if necessary to arrive at a head/ABS design which provides neutral flying height sensitivity to a range of operational temperatures.

    Abstract translation: 用于中和与空气轴承滑块的热极尖突起（T-PTP）相关联的飞行高度灵敏度的方法包括创建头部材料数据和空气轴承表面（ABS）补偿数据，基于该数据创建头部/ ABS设计 。 头材料数据包括取决于材料制造方式的至少一种材料性质，例如使用某种沉积工艺沉积的材料的热膨胀系数。 ABS补偿数据包括有关ABS特性如何影响空气轴承压力以及因此ABS补偿的数据。 确定头/ ABS设计的突起轮廓，然后确定该突起轮廓是否满足特定的设计标准。 如果需要，头/ ABS制造和确定过程可以重复以获得头/ ABS设计，其提供对一系列操作温度的中立飞行高度灵敏度。

    Reading optical disks having substrates with diverse axial thicknesses
    7.
    发明授权
    Reading optical disks having substrates with diverse axial thicknesses 失效
    读取具有不同轴向厚度的衬底的光盘

    公开(公告)号：US5621717A

    公开(公告)日：1997-04-15

    申请号：US476739

    申请日：1995-06-07

    Applicant: Blair I. Finkelstein ,  Timothy C. Strand

    Inventor： Blair I. Finkelstein ,  Timothy C. Strand

    IPC: G11B19/12 ,  G11B7/00 ,  G11B7/0037 ,  G11B7/004 ,  G11B7/09 ,  G11B7/135

    CPC classification number: G11B7/1381 ,  G11B7/0037 ,  G11B2007/0006

    Abstract: An optical disk player reads either thin-substrate disks or thick-substrate disks. The disk players optical system is designed for reading the thin-substrate optical disks and has an effective numerical aperture. Thick-substrate optical disks having a thicker substrate than the thin-substrate optical disk result in the laser beam reading such thick-substrate optical disks having spherical aberration sufficient to prevent reliable data detection. When thick-substrate optical disks are being read, the read portion of the optical system is automatically changed to accommodate the undesired spherical aberration. The thick-substrate disk reflected laser beam is subjected to annular filtering that reduces spherical aberration sufficiently for enabling data and servo signal detection. Annular filtering is provided in an optical read path by an effective opaque or translucent disk centrally located in a pupil of the laser beam optical filter disposed in the read portion. An apertured plate having an aperture comparable to a known diffraction limited spot size is disposed between the laser beam filter and photo detectors. The apertured plate is disposed in the focal region of a lens in the optical read path.

    Abstract translation: 光盘播放器读取薄基板盘或厚基板盘。 磁盘播放器光学系统设计用于读取薄基板光盘并具有有效的数值孔径。 具有比薄基板光盘更厚的基板的厚基板光盘导致激光束读取具有足以防止可靠数据检测的球面像差的厚基板光盘。 当读取厚基板光盘时，自动改变光学系​​统的读取部分以适应不期望的球面像差。 厚基板盘反射激光束经受环形滤波，足以减少球差，从而实现数据和伺服信号的检测。 通过位于读取部分中的位于激光束光学滤光器的光瞳中心的有效的不透明或半透明光盘在光学读取路径中提供环形滤波。 具有与已知衍射限制光斑尺寸相当的孔径的多孔板设置在激光束过滤器和光电检测器之间。 多孔板设置在光学读取路径中的透镜的聚焦区域中。

    Multilayer optical disk and system having multiple optical paths include identical total disk substrate thickness
    9.
    发明授权
    Multilayer optical disk and system having multiple optical paths include identical total disk substrate thickness 失效
    多层光盘和具有多个光路的系统，其包括相同的总盘基片厚度

    公开(公告)号：US5373499A

    公开(公告)日：1994-12-13

    申请号：US96585

    申请日：1993-07-22

    Applicant: Wayne I. Imaino ,  Hal J. Rosen ,  Kurt A. Rubin ,  Timothy C. Strand

    Inventor： Wayne I. Imaino ,  Hal J. Rosen ,  Kurt A. Rubin ,  Timothy C. Strand

    IPC: G11B7/095 ,  G11B7/005 ,  G11B7/09 ,  G11B7/24 ,  G11B7/26 ,  G11B7/20

    CPC classification number: G11B7/24 ,  G11B7/0052

    Abstract: An optical data storage system uses an optical medium made of a stack of spaced-apart optical disks. Each disk in the stack is made of light-transmissive material, such as polycarbonate when the system is a CD-ROM system, and has a partially light-transmissive data layer on at least one of its faces. A focusing lens in the system focuses light to the data layers along optical paths, with each data layer corresponding to a unique optical path length. The light is focused to each data layer by reflection off adjacent data layers such that the total substrate thickness through which the light passes is the same for each optical path. In this manner, the fixed spherical aberration correction provided by the focusing lens is adequate and variable aberration correction is not necessary. By appropriate selection of reflectivities of the multiple data layers in the disk stack, it is possible to design the system so that the effective reflected light intensity from each data layer is the same, and that adjustable signal amplification is not necessary.

    Abstract translation: 光学数据存储系统使用由间隔开的光盘堆叠制成的光学介质。 当系统是CD-ROM系统时，堆叠中的每个盘由诸如聚碳酸酯的透光材料制成，并且在其至少一个面上具有部分透光的数据层。 系统中的聚焦透镜将光线沿着光学路径聚焦到数据层，每个数据层对应于唯一的光程长度。 光通过相邻的数据层反射而聚焦到每个数据层，使得光通过的总的基板厚度对于每个光路是相同的。 以这种方式，由聚焦透镜提供的固定球面像差校正是足够的，并且不需要可变像差校正。 通过适当选择磁盘堆叠中的多个数据层的反射率，可以设计系统，使得来自每个数据层的有效反射光强度相同，并且不需要可调节的信号放大。

    Method and apparatus for optical computing and logic processing by mapping of input optical intensity into position of an optical image
    10.
    发明授权
    Method and apparatus for optical computing and logic processing by mapping of input optical intensity into position of an optical image 失效
    通过将输入光强度映射到光学图像的位置来进行光学计算和逻辑处理的方法和装置

    公开(公告)号：US4351589A

    公开(公告)日：1982-09-28

    申请号：US138672

    申请日：1980-04-08

    Applicant: Pierre H. Chavel ,  Alexander A. Sawchuk ,  Bernard H. Soffer ,  Timothy C. Strand ,  Armand R. Tanguay, Jr.

    Inventor： Pierre H. Chavel ,  Alexander A. Sawchuk ,  Bernard H. Soffer ,  Timothy C. Strand ,  Armand R. Tanguay, Jr.

    IPC: G02F3/00 ,  G06E1/04 ,  G02F1/29 ,  G02F1/00 ,  G06F7/56

    CPC classification number: G06E1/04 ,  G02F3/00

    Abstract: Arrangements and methods are described employing input optical intensity to output spatial position mapping, for performing optical computing or logic processing functions. An electro-optical device which receives discrete input optical object beams of different intensity levels and a separate readout optical beam, diffracts portions of the readout optical beam to unique spatial positions in two dimensional space, each portion as a function of the intensity of individual discrete input beams or of combinations of the intensities of the input beams. A spatial filter having discrete apertures at selected ones of the unique spatial positions transmits the selected diffracted optical outputs for implementing logic or computing functions.

    Abstract translation: 使用输入光强来描述安排和方法以输出空间位置映射，用于执行光学计算或逻辑处理功能。 接收不同强度级别的离散输入光学物体光束和单独的读出光束的电光装置将读出的光束的一部分衍射到二维空间中的唯一空间位置，每个部分作为单独离散的强度的函数 输入光束或输入光束强度的组合。 具有独特空间位置中选定的独立空间位置的离散孔径的空间滤波器传送所选择的衍射光学输出以实现逻辑或计算功能。

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