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公开(公告)号：US5619306A
公开(公告)日：1997-04-08
申请号：US359043
申请日：1994-12-19
CPC分类号： G03B27/10
摘要： Photographic films, such as X-rays, are duplicated by exposing an unexposed copy film in the presence of an intimately overlying developed film to be copied. The device exposure station has a pair of rollers at the entrance to drive the film pair and to remove from the interface between the films trapped air that would compromise the accuracy of resolution and contrast of the copy. Another pair of rollers at the outlet from the exposure station cooperates with the roller pair at the exposure station inlet to maintain the film pair within the exposure station in a planar orientation to avoid curvature which is another principal source of compromised resolution in film copies. The source of illumination for copy film exposure is, preferably, a fluorescent tube that generates emissions that are approximately matched to the wave length response of the unexposed copy film and has a length such that each end is disposed beyond the portion of the exposure station confronting a film pair so that only the tube portion intermediate the heating elements at the tube ends, where emission is most uniform, confronts the film being exposed. The film pair is driven through the apparatus by a stepper motor controlled by a microprocessor which enables the average film pair speed (and thus the exposure time) to be selected from a range of incremented values contained in an addressable controller memory location. The sequence of incremented step rate values can be changed by addressing another addressable block of values in the controller memory.
摘要翻译： 诸如X射线之类的照相胶片通过在存在要复印的紧密覆盖的显影胶片的情况下曝光未曝光的复印薄膜来重复。 设备曝光站在入口处具有一对辊，用于驱动胶片对，并从被捕获的空气之间的界面上移除，这将损害复印件的分辨率和对比度的精度。 来自曝光站的出口处的另一对辊与曝光站入口处的辊对配合，以将胶片对保持在曝光站内的平面取向以避免弯曲，这是膜复印件中分辨力受损的另一主要来源。 用于复印膜曝光的照明源优选地是产生与未曝光复印膜的波长响应几乎匹配的发射的荧光管，并且具有使每个端部设置在面对曝光站的部分之外的长度 薄膜对，使得只有在管端处的加热元件之间的管部分（其中发射最均匀）面对该膜被暴露。 电影对通过由微处理器控制的步进电机驱动通过装置，其能够从包含在可寻址控制器存储器位置中的递增值的范围中选择平均胶片对速度（并且因此曝光时间）。 可以通过寻址控制器存储器中的另一个可寻址块值来更改递增步长值的顺序。
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公开(公告)号：US4488189A
公开(公告)日：1984-12-11
申请号：US414285
申请日：1982-08-16
CPC分类号： G11B5/5547 , G11B21/083
摘要： A sector servo seek control samples each sector to obtain sector time, the track identification within a sequence of track types and a position error signal for a track location to track location seek. The device during each sector determines the actual transducer track location and the next sector projected track location with respect to the sequence of track types. The projected track location is corrected using the error signal to find the actual location, but if a sector signal is missing or erroneous, the projected location is used as the actual location, permitting a composite correction to be made when a correct sector signal is obtained. The seek time is minimized by using maximum acceleration followed by maximum deceleration while not exceeding a velocity value that would cause the device to overshoot the target track using full deceleration.
摘要翻译： PCT No.PCT / US82 / 00657 Sec。 371日期1982年8月16日 102（e）日期1982年8月16日PCT提交1982年5月17日PCT公布。 公开号WO83 / 04133 日期1983年11月24日。扇区伺服搜索控制对每个扇区进行采样以获得扇区时间，轨道类型序列内的轨道识别和用于跟踪位置搜索的轨道位置的位置误差信号。 在每个扇区期间的装置确定实际的换能器轨道位置和相对于轨道类型序列的下一个扇区的投影轨道位置。 使用误差信号校正投影轨道位置以找到实际位置，但是如果扇区信号丢失或错误，则将投影位置用作实际位置，允许在获得正确的扇区信号时进行复合校正 。 通过使用最大加速度，然后是最大减速度，而不超过将导致设备使用全减速度超过目标轨道的速度值，使寻道时间最小化。
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公开(公告)号：US5360651A
公开(公告)日：1994-11-01
申请号：US871436
申请日：1992-04-21
CPC分类号： G11B7/0079 , G11B7/24038 , Y10S428/913 , Y10S430/146 , Y10T428/31678
摘要： An optical storage arrangement is provided where a unified optical disk, or other optical media, has separate Read/Write (R/W) and Write Once Read Many (WORM) areas. A Read/Write head or transducer selectively records data only once in the WORM area but records and re-records data in the R/W area. Both areas can be selectively read repetitively. The WORM area is used to store data records and the R/W area contains directories for the data records recorded in the WORM area.
摘要翻译： 提供了一种光学存储装置，其中统一光盘或其他光学介质具有单独的读/写（R / W）和一次写入读取（WORM）区域。 读/写头或传感器在WORM区域中选择性地仅记录数据一次，但记录并重新记录R / W区域中的数据。 这两个区域都可以重复选择读取。 WORM区域用于存储数据记录，R / W区域包含记录在WORM区域中的数据记录的目录。
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4.发明授权System for preventing the overwriting of previously optically recorded data and for reading optically recorded data during writing 失效用于防止在写入期间重写先前光学记录数据和读取光学记录数据的系统
公开(公告)号：US4631706A
公开(公告)日：1986-12-23
申请号：US672559
申请日：1984-11-19
CPC分类号： G11B7/126 , G11B19/04 , G11B27/36 , G11B7/0045 , G11B7/13
摘要： An optical file system in which a command to store data results in a write operation in the next available storage position. A single optical path is used for both reading and writing. By dividing the detector in two equal parts along the direction of relative movement, it is possible to determine whether data has been written at a position which is in advance of the center of the area viewed by the detector. The write operation is conditioned on the output of the first part of the detector. Since the first part of the detector gives advance warning on the status of the oncoming data position, it is possible to switch from reading to writing without the requirement for a wasted revolution or wasted space. By dividing the signal resulting from a change of reflectance sensed during a write operation by a measure of the intensity of the write laser a read signal free of the write modulation is obtained.
摘要翻译： 其中存储数据的命令导致下一个可用存储位置的写入操作的光学文件系统。 单一光路用于读写。 通过沿着相对移动方向将检测器分成两个相等的部分，可以确定数据是否已经被写入位于由检测器观察的区域的中心之前的位置。 写入操作根据检测器的第一部分的输出。 由于检测器的第一部分对即将到来的数据位置的状态提供预警，可以从读取切换到写入，而不需要浪费革命或浪费空间。 通过将在写入操作期间感测的反射率的变化产生的信号除以写入激光器的强度的测量，获得了没有写入调制的读取信号。
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公开(公告)号：US4371902A
公开(公告)日：1983-02-01
申请号：US164727
申请日：1980-06-30
申请人： Duane W. Baxter , Joseph L. Evjen, Jr. , William C. Hoveland , Roy A. Roble , Donald R. Smith , John H. Wirz
发明人： Duane W. Baxter , Joseph L. Evjen, Jr. , William C. Hoveland , Roy A. Roble , Donald R. Smith , John H. Wirz
CPC分类号： G11B5/59655
摘要： A rotating magnetic memory, such as a disk drive using sector servo information, is initialized with servo information by first using the dedicated product head assembly, including transducers and the mounting and accessing mechanisms associated therewith, to write on the innermost and outermost data tracks, following which the tracks written by each transducer are read using a precision servowriter mechanism which is then positioned to duplicate the access path of the product head assembly and determine the position of such innermost and outermost tracks. By then offsetting the precision servowriter by a half track pitch and writing the servo information to form equally spaced tracks, the disk is initialized with full track pitch servo information which is positioned and aligned with the position and alignment of the dedicated product head assembly.
摘要翻译： 使用扇区伺服信息的诸如使用扇区伺服信息的磁盘驱动器的旋转磁存储器通过首先使用专用产品头组件（包括换能器以及与其相关的安装和访问机构）在最内和最外数据磁道上进行写入来初始化伺服信息， 随后使用精密伺服机构读取每个换能器所写入的轨迹，该机构然后被定位成复制产品头部组件的存取路径并且确定这种最内侧和最外边轨迹的位置。 然后，通过将精密伺服驱动器偏移半个轨道间距并写入伺服信息以形成等间隔的轨道，盘被初始化为具有与专用产品头组件的位置和对准位置和对准的全跟踪俯仰伺服信息。
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