会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Optical discs with cover sheets and pressure equalization of the
enclosed air
    • 带盖的光盘和封闭空气的压力均衡
    • US5872768A
    • 1999-02-16
    • US755747
    • 1996-11-22
    • Boris A. ShtipelmanJames A. BarnardCharles J. Simpson
    • Boris A. ShtipelmanJames A. BarnardCharles J. Simpson
    • G11B7/24G11B3/70
    • G11B7/24015G11B7/24056
    • An optical disc is disclosed having a substrate in which data can be written on or read from, such optical disc has a transparent cover sheet which is held at a desired spacing from the substrate at least at an inner radius and an outer radius. In order to prevent the transparent cover sheet from deflecting due to pressure differences between the outside atmosphere and the air in the space between the substrate surface and the transparent cover sheet, a plurality of air passages in the transparent cover sheet are provided near an inflection point where on one lateral side of the point the transparent sheet will bulge and on the other lateral side it will be depressed due to centrifugal force acting upon air entrapped between the transparent cover sheet and the substrate surface during disc rotation in an optical disc drive. This arrangement equalizes the pressure in the air space between the transparent cover sheet and the substrate surface and the outside atmosphere.
    • 公开了一种光盘,其具有数据可写入或读取的基板,该光盘具有至少在内半径和外半径处以与基板保持期望间隔的透明盖板。 为了防止透明覆盖片由于基板表面和透明盖板之间的空间中的外部气氛和空气之间的压力差而偏转,透明盖板中的多个空气通道设置在拐点附近 在该点的一个侧面上,透明片材将凸出并且在另一侧面上将由于在光盘驱动器中的盘旋转期间作用于夹在透明覆盖片和基板表面之间的空气的离心力而被压下。 这种布置使得透明覆盖片和基板表面之间的空气空间和外部气氛的压力相等。
    • 2. 发明授权
    • Focus/tracking actuator with moving-magnet motors
    • 带移动磁铁电机的对焦/跟踪执行器
    • US5561646A
    • 1996-10-01
    • US411246
    • 1995-03-27
    • Boris A. ShtipelmanJames A. Barnard
    • Boris A. ShtipelmanJames A. Barnard
    • G11B7/09G11B7/095
    • G11B7/0933G11B7/093G11B7/0932
    • A focus/tracking actuator for an optical or magnetooptical disk drive includes a pair of moving-magnet type linear motors for simultaneously controlling the focus and tracking positions of an objective lens used to focus a write/read beam on a desired data track of a rotating data storage disk. Each motor includes a pair of selectively energizable focus and tracking coils, one coil being positioned within the other so that its respective windings are perpendicular to those of the other coil. Flux lines emanating from a permanent magnet secured to a movably mounted lens housing interact with the electromagnetic fields surrounding both coils, and a single steel plate or the like, positioned inside the windings of both coils, facilitates the return of magnetic flux to the magnet while preventing such flux from cutting portions of the coils which would act to exert an undesired forces on the lens housing. Preferably, the steel plate is composed of two segments to facilitate winding of the coils about the plate.
    • 用于光学或磁光盘驱动器的焦点/跟踪致动器包括一对移动磁体型线性电动机,用于同时控制用于将写入/读取光束聚焦在旋转的期望数据轨道上的物镜的聚焦和跟踪位置 数据存储盘。 每个电动机包括一对选择性激励的焦点和跟踪线圈,一个线圈定位在另一个线圈内,使得其相应的绕组垂直于另一个线圈的线圈。 从固定到可移动安装的透镜壳体的永磁体发出的磁通线与位于两个线圈的绕组内的电磁场和围绕两个线圈的单个钢板或类似物相互作用,有助于磁通量返回到磁体,同时 防止这种焊剂切断线圈的部分,这些部分会对透镜壳体施加不期望的力。 优选地,钢板由两个部分组成,以便于围绕板卷绕线圈。
    • 5. 发明授权
    • Optical discs with cover sheets and dynamic pressure stabilization of
the enclosed air
    • 具有盖板的光盘和封闭空气的动态压力稳定
    • US5774447A
    • 1998-06-30
    • US755085
    • 1996-11-22
    • Boris A. ShtipelmanJames A. Barnard
    • Boris A. ShtipelmanJames A. Barnard
    • G11B7/24G11B23/00G11B23/03G11B33/14
    • G11B33/1486G11B23/0316G11B7/24015G11B23/0021
    • An optical disc having a substrate in which data can be written on or read from, such optical disc being adapted to be inserted and clamped onto a spindle in a disc drive and having a transparent cover sheet disposed over the substrate surface. The optical disc has a perimeter ring on the edge thereof and a spacer formed adjacent to a central opening in the disc. The perimeter ring is formed with a plurality of air passages leading from the space between the transparent cover sheet and the substrate surface to the outside atmosphere and the spacer is formed with a plurality of air passages leading from the outside atmosphere to the space between the transparent cover sheet and the substrate surface. Filters are provided in the air passages in the spacer and the perimeter ring to prevent contaminants from the atmosphere from entering into the space between the transparent cover sheet and the substrate surface.
    • 一种光盘,其具有能够将数据写入或读取的基板,该光盘适于插入并夹持在盘驱动器中的主轴上并且具有设置在基板表面上方的透明盖板。 光盘在其边缘上具有周边环,并且在盘中邻近中心开口形成间隔物。 周边环形成有从透明覆盖片和基板表面之间的空间引导到外部大气的多个空气通道,并且间隔件形成有从外部大气引导到多个透明的空间之间的空间 覆盖片和基片表面。 过滤器设置在隔离物和周边环的空气通道中,以防止大气中的污染物进入透明覆盖片和基底表面之间的空间。
    • 6. 发明授权
    • Diffraction-based direct read during write using magneto-optic recording
media
    • 使用磁光记录介质进行写入时的基于衍射的直接读取
    • US5828630A
    • 1998-10-27
    • US852975
    • 1997-05-07
    • Edward C. GageClarke K. EastmanSteven C. DohmeierJames A. Barnard
    • Edward C. GageClarke K. EastmanSteven C. DohmeierJames A. Barnard
    • G11B7/09G11B7/125G11B7/135G11B11/105G11B7/00
    • G11B7/1356G11B11/1053G11B11/10534G11B11/10545G11B7/126G11B11/10576G11B11/10595G11B7/0901
    • A magneto-optic head for reading and writing information on a magneto-optic recording medium so that diffraction effects can be monitored during writing is disclosed. The magneto-optic head includes a source of laser light for projecting a laser light beam during writing and reading, a first partial polarizing beamsplitter disposed in the beam of light for causing one beam of light to be transmitted to the recording medium and for receiving reflected light and for projecting such light in a first direction, a second polarizing beamsplitter for receiving polarized light in the first direction from the first partial polarizing beamsplitter and projecting such polarized light in second and third directions, a first detector for receiving light in the second direction from the second polarizing beamsplitter and a second detector for receiving light in the second direction from the second polarizing beamsplitter, each detector including at least two photosensitive elements being split in the in-track direction so that in-track diffraction effects can be determined.
    • 公开了一种用于在磁光记录介质上读取和写入信息以便在写入期间可以监视衍射效应的磁光头。 磁光头包括用于在写入和读取期间投射激光束的激光源,设置在光束中的第一部分偏振分束器,用于使一束光被传输到记录介质并用于接收反射 用于沿第一方向投射这样的光;第二偏振分束器,用于从第一部分偏振分束器沿第一方向接收偏振光并在第二和第三方向上投射这种偏振光;第一检测器,用于接收第二方向的光 从第二偏振分束器和第二检测器接收来自第二偏振分束器的第二方向的光,每个检测器包括沿轨道内方向分割的至少两个光敏元件,从而可以确定轨道内衍射效应。
    • 7. 发明授权
    • Optical tape recording media with integral dust-defocusing transparent
film
    • 带有整体除尘透明胶片的光带记录介质
    • US5215808A
    • 1993-06-01
    • US577373
    • 1990-09-04
    • James A. Barnard
    • James A. Barnard
    • G11B7/003G11B7/24G11B11/105G11B23/50G11B33/14
    • G11B7/003G11B23/505G11B7/24G11B11/10582G11B33/14Y10S428/913Y10S430/146Y10T428/24661Y10T428/24793Y10T428/31507
    • An optical tape recording medium is provided with a transparent flexible membrane which covers the recording surface of the tape and is bonded to its edges so as to trap a small bubble of fluid, e.g., gas or liquid. During recording, the trapped bubble displaces dust particles resting on the film's upper surface to a location out of the zone of focus of a read/write beam. As the tape is longitudinally transported, the trapped bubble is held stationary at the read/write station of the recording apparatus. In a tape cassette, the optically writable tape is wound around two reels with sufficient tension to trap the bubble in that portion of the tape stretched between the supply and take-up reels. In one embodiment of the invention, the bubble contains a transparent magnetic liquid which can be properly positioned by a magnet when the cassette is first inserted into an optical recording or playback apparatus. The invention is generally useful with any optically writable media, including optical and magneto-optical write/read media.
    • 光带记录介质设置有透明柔性膜,该透明柔性膜覆盖带的记录表面并且被结合到其边缘以便捕获诸如气体或液体的流体的小气泡。 在记录期间,被捕获的气泡将沉积在胶片上表面上的灰尘颗粒置于读/写光束的焦点区域之外的位置。 当带被纵向输送时,被捕获的气泡保持在记录装置的读/写站处。 在磁带盒中,可光学写入的磁带以足够的张力缠绕在两个卷轴上,以将磁带捕获在供带卷轴和卷取卷轴之间拉伸的磁带部分。 在本发明的一个实施例中,气泡包含透明磁性液体,当磁带首次插入到光学记录或重放装置中时,可以通过磁体适当地定位透明磁性液体。 本发明对于包括光学和磁光写入/读取介质的任何光学可写介质通常是有用的。
    • 8. 发明授权
    • Magneto-optic readout using a polarization-preserving optical fiber
    • 使用偏振光保护光纤进行磁光读出
    • US5152597A
    • 1992-10-06
    • US620803
    • 1990-12-03
    • James A. Barnard
    • James A. Barnard
    • G11B7/135G11B11/10G11B11/105
    • G11B7/1384G11B11/10545
    • Apparatus for reading out information magneto-optically recorded in a magnetic layer comprises a single, polarization-preserving optical fiber for transmitting plane-polarized readout radiation from a source to the recording layer, as well as for transmitting such radiation, upon being reflected by the recording layer, toward a pair of photodetectors for the differential detection of the Kerr rotation angles (.+-..THETA..sub.k) produced by the up/down orientation of the vertically oriented magnetic domain in the recording layer. Optical feedback of the reflected readout radiation to the readout source is minimized by the provision of a pair of polarization beam-splitters having a 45 degree magneto-optic polarization-rotator (e.g. a Faraday rotator) positioned therebetween. The polarization beam-splitters and retardation plate are positioned in the optical path between the readout source and the optical fiber.
    • 用于读出磁光记录在磁层中的信息的装置包括用于将平面偏振读出辐射从源传输到记录层的单一的偏振保留光纤,以及用于在由 记录层,朝向一对光电检测器,用于差分检测由记录层中垂直取向的磁畴的上/下取向产生的克尔旋转角(+/- THETA k)。 通过提供一对具有位于它们之间的45度磁光偏振旋转器(例如法拉第旋转器)的偏振光束分离器,将反射的读出辐射到读出源的光学反馈最小化。 偏振光束分离器和延迟板位于读出光源和光纤之间的光路中。
    • 10. 发明授权
    • Method for assembling heat exchangers
    • 组装热交换器的方法
    • US4228573A
    • 1980-10-21
    • US53361
    • 1979-06-29
    • James A. Barnard
    • James A. Barnard
    • B21D53/08B23P15/26
    • B21D53/085Y10T29/49368Y10T29/4938
    • Method and apparatus are disclosed for rapidly assembling a heat exchanger comprised of perforated fins, a pair of perforated headers and a plurality of reverse bent tubes as the fins are being stamped from sheet stock. The parts are assembled on a pallet fixture which is advanced by a continuously moving conveyor to various work stations. At each work station, the pallet fixture is lifted and then held in a predetermined position overhead the conveyor while an assembly operation operated from one side of the conveyor is performed thereon whereafter the pallet fixture is lowered onto the conveyor.
    • 公开了用于快速组装由多孔翅片组成的热交换器的方法和装置,一对穿孔的集管和多个反向弯曲的管,因为翅片被片材冲压。 部件组装在托盘固定装置上,该托盘固定装置由连续移动的输送机推进到各种工作站。 在每个工作站,托盘夹具被提起,然后被保持在传送器顶部的预定位置,而从输送机的一侧操作的组装操作在其上执行,之后托盘固定件下降到输送机​​上。