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1. 发明授权

US06690639B2 Optical tape transport system using focus stabilizer 失效
标题翻译：光学胶带传输系统采用聚焦稳定器
公开(公告)号：US06690639B2
公开(公告)日：2004-02-10
申请号：US10032522
申请日：2001-10-19
申请人： Alan T. Brewen
发明人： Alan T. Brewen
IPC分类号： G11B2506
CPC分类号： G11B7/003 , G11B15/62
摘要： An optical tape transport system including an optical head, tape transport structure and a focus stabilizer element including the stabilizer element including a cylindrical surface section supports the full width of the tape; the stabilizer element being disposed on the opposite side of the tape from the optical head; the optical axis of the optical head being perpendicular to the stabilizer surface at the point of intersection between the optical axis and the stabilizer surface; the tape being supported at the stabilizer surface by an air film; and the air film thickness at the point of intersection being in the range 1-50 &mgr;m while the tape is transported for reading or writing.
摘要翻译：包括光学头，带传送结构和包括具有圆柱形表面部分的稳定器元件的聚焦稳定器元件的光学带传输系统支撑带的全宽; 所述稳定器元件设置在所述带的与所述光学头相反的一侧上; 在光轴与稳定器表面的交点处，光学头的光轴垂直于稳定器表面; 该带通过空气膜在稳定器表面处被支撑; 并且交叉点处的空气膜厚度在1-50μm的范围内，而带被输送以进行读取或写入。

2. 发明授权

US06693872B1 Multi-track optical data recording and readout 失效
标题翻译：多轨光学数据记录和读出
公开(公告)号：US06693872B1
公开(公告)日：2004-02-17
申请号：US09650199
申请日：2000-08-29
申请人： Alan T. Brewen , Alan B. Marchant
发明人： Alan T. Brewen , Alan B. Marchant
IPC分类号： G11B700
CPC分类号： G11B7/14 , G11B7/005 , G11B7/0053 , G11B7/0938
摘要： A method for optical data recording and readout includes scanning a blank region of an optical recording medium while recording a data band including a plurality of adjacent data tracks; synchronizing the recording on all tracks to a common data clock; and simultaneously recording control tracks with the band of data tracks, each control track having a well-defined track center and a repetitive pattern of marks that is synchronized to the data clock. The method further includes optically sensing the cross-scan positions and clock offsets of at least one control track on either side of the data band; interpolating between the control track cross-scan positions to predict the cross-scan positions of each data track and compensate for magnification errors; interpolating between the control track clock offsets to predict the clock offset of each data track and compensate for skew errors; and simultaneously reading and decoding information recorded on all tracks of the data band.
摘要翻译：一种用于光学数据记录和读出的方法包括在记录包括多个相邻数据磁道的数据带的同时扫描光学记录介质的空白区域; 将所有轨道上的记录同步到公共数据时钟; 并且同时记录具有数据轨道带的控制轨道，每个控制轨道具有良好定义的轨道中心和与数据时钟同步的标记的重复模式。该方法还包括光学感测数据频带两侧的至少一个控制轨道的交叉扫描位置和时钟偏移; 在控制轨迹交叉扫描位置之间进行内插，以预测每个数据轨迹的交叉扫描位置并补偿放大误差; 在控制轨道时钟偏移之间内插，以预测每个数据轨道的时钟偏移量并补偿偏斜误差; 并同时读取和解码记录在数据带的所有轨道上的信息。

3. 发明授权

US06396793B1 Preheating beams for optical recording 有权
标题翻译：预热光束进行光学记录
公开(公告)号：US06396793B1
公开(公告)日：2002-05-28
申请号：US09651457
申请日：2000-08-30
申请人： Alan T. Brewen
发明人： Alan T. Brewen
IPC分类号： G11B700
CPC分类号： B41J2/4753 , G11B7/0045 , G11B7/127 , G11B7/14
摘要： A method for optical data recording includes focusing a preheat laser beam and a recording laser beam onto an optical recording medium, forming a preheat focused spot and a recording focused spot having nearly equal sizes; providing relative scanning motion between the optical recording medium and the recording focused spot in a direction parallel to the displacement from the preheat focused spot to the recording focused spot at a velocity sufficient to prevent thermal diffusion from the optical recording medium during the transit of the medium from the preheat focused spot to the recording focused spot; and modulating the preheat laser beam according to a modulated data signal, thereby creating preheated zones on the media surface with temperatures less than a threshold for complete mark formation. The method also includes modulating the recording laser beam according to the modulated data signal, with a time delay equal to the separation between the preheat focused spot and the recording focused spot divided by the scanning velocity, and causing the recording laser beam to illuminate the recording focused spot with sufficient power to raise the temperatures of each preheated zone above the threshold for complete mark formation, creating a track of permanent recorded marks.
摘要翻译：一种用于光学数据记录的方法包括将预热激光束和记录激光束聚焦到光学记录介质上，形成预热聚焦点和具有几乎相同尺寸的记录聚焦点; 提供光学记录介质和记录聚焦点之间的平行于从预热聚焦点到记录聚焦点的位移的方向上的相对扫描运动，其速度足以防止在介质传送期间从光记录介质的热扩散从预热聚焦点到记录聚焦点; 并根据调制的数据信号调制预热激光束，从而在温度小于阈值以形成完整标记的情况下在介质表面上产生预热区域。该方法还包括根据调制数据信号调制记录激光束，时间延迟等于预热聚焦光点与记录聚焦光斑之间的间隔除以扫描速度，并使记录激光束照射记录聚焦点具有足够的功率，以将每个预热区域的温度升高到阈值以上，从而形成完整的标记，从而创建永久记录标记的轨迹。

4. 发明授权

US5764456A Apparatus for backing a magnetic medium in contact with a magnetic read/write head 失效
标题翻译：用于支撑与磁读/写头接触的磁介质的装置
公开(公告)号：US5764456A
公开(公告)日：1998-06-09
申请号：US739373
申请日：1996-10-29
申请人： Scott M. Fitzgerald , Frederick J. Oleson , Jan A. Chrisler , Jeffrey M. Steele , Alan T. Brewen , Patrick J. Argento
发明人： Scott M. Fitzgerald , Frederick J. Oleson , Jan A. Chrisler , Jeffrey M. Steele , Alan T. Brewen , Patrick J. Argento
IPC分类号： G11B5/48 , G11B15/62 , G11B17/32 , G11B15/60
CPC分类号： G11B17/32 , G11B15/62 , G11B5/48 , G03B2217/244
摘要： A recording head apparatus includes a first rigid frame (80); a magnetic head (14) supported by the first frame; a head-to-medium backer device (18; 37) including a second rigid frame (24; 38) supporting an elastically deformable leaf spring (20; 40) for engaging a magnetic medium (16) to urge the medium into contact with the head; a carrier (100) supported on the first frame for movement toward or away from the head, the backer device being supported by the carrier; and a spring member (110) for biasing the carrier toward the head, the carrier and backer device being moveable away from the head against the bias of the spring member to permit the head to be cleaned without requiring disassembly of the apparatus.
摘要翻译：记录头装置包括第一刚性框架（80）; 由所述第一框架支撑的磁头（14）; 包括支撑可弹性变形的板簧（20; 40）的第二刚性框架（24; 38）的头对中支撑装置（18; 37），用于接合磁介质（16）以促使介质接触头; 支撑在所述第一框架上以朝向或远离所述头部移动的托架（100），所述支撑装置由所述托架支撑; 以及弹簧构件（110），用于朝着头部偏压载体，所述载体和支撑装置能克服弹簧构件的偏压而能够从头部移动，以允许头部被清洁，而不需要拆卸装置。

5. 发明授权

US06588904B2 System for compensating for film flutter in a motion picture projector 失效
公开(公告)号：US06588904B2
公开(公告)日：2003-07-08
申请号：US09982462
申请日：2001-10-18
申请人： Roger A. Morton , Christopher L. Dumont , Kenneth J. Repich , Alan T. Brewen
发明人： Roger A. Morton , Christopher L. Dumont , Kenneth J. Repich , Alan T. Brewen
IPC分类号： G03B148
CPC分类号： G03B1/00
摘要： A system for compensating for film flutter in a motion picture film projector during projection of a motion picture film comprising multiple film image frames is described, the system comprising sensing the position of film image frames in a film gate of the projector relative to the focal plane of the projection lens assembly of the projector as the film image frames are being projected, and correcting the position of the film in the film gate of the projector or the position of the focal plane of the projection lens assembly to reduce the distance between the film image and the focal plane of the projection lens assembly as the film image frames are being projected, wherein the correction of the position of an individual film image frame in the film gate or that of the position of the focal plane of the projection lens assembly during projection of the individual frame image is based on the actual sensed position of the individual film image frame in the film gate, or on the position of a previously projected film image frame which was sensed as it was being projected.

6. 发明授权

US5990461A Photothermographic media processor thermal control 失效
标题翻译：光热媒体处理器热控制
公开(公告)号：US5990461A
公开(公告)日：1999-11-23
申请号：US979646
申请日：1997-11-26
申请人： Paul B. Stumpf , Alan T. Brewen
发明人： Paul B. Stumpf , Alan T. Brewen
IPC分类号： G03B27/30 , G03D13/00 , H05B1/02
CPC分类号： G03D13/002 , G03B27/306
摘要： A thermal processor for thermally processing a sequence of exposed photothermographic media comprising: a rotatable thermally conductive drum; a heat source for heating the drum to a setpoint temperature; a plurality of rollers spaced around a portion of the periphery of the drum for holding down exposed photothermographic media to the drum for thermal development thereof; a sensor for sensing the temperature of the drum; and a control for controlling the temperature of the drum as a function (1) of the setpoint temperature, (2) of the sensed drum temperature, and (3) of the status of the processor, i.e., whether or not photothermographic media is being processed by the drum, in order to compensate for heat loss due to media heating and roller heating.
摘要翻译：一种用于热处理暴露的光热敏成像介质序列的热处理器，包括：可转动的导热滚筒; 用于将滚筒加热到设定点温度的热源; 围绕滚筒的周边的一部分间隔开的多个辊，用于将暴露的光热照相介质保持在滚筒上以进行热显影; 用于感测滚筒温度的传感器; 以及用于控制滚筒的温度的控制作为设定点温度的函数（1），（2）感测的滚筒温度，以及（3）处理器的状态，即，光热敏成像介质是否是由滚筒处理，以补偿由于介质加热和辊加热引起的热损失。

7. 发明授权

US5923507A Magnetic head-to-medium backer device 失效
标题翻译：磁头到中型支架装置
公开(公告)号：US5923507A
公开(公告)日：1999-07-13
申请号：US739368
申请日：1996-10-29
申请人： Jeffrey M. Steele , Alan T. Brewen , Patrick J. Argento
发明人： Jeffrey M. Steele , Alan T. Brewen , Patrick J. Argento
IPC分类号： G11B5/48 , G11B15/62 , G11B17/32
CPC分类号： G11B15/62 , G11B17/32 , G11B5/48 , G03B2217/244
摘要： A head-to-medium backer device (37) includes a rigid frame (38) supporting an elastically deformable leaf spring (40) for engaging a magnetic medium (16) to urge the medium into contact with a magnetic head (14). The rigid frame supports a pair of attachment elements (42, 44; 52; 54) which secure respective opposite ends (46, 48) of the leaf spring, the attachment elements being configured so that, when the leaf spring is installed therebetween, the leaf spring flexes to form a continuous arc (50) which is convex away from the rigid frame with the opposite ends of the leaf spring being secured against rotation relative to the rigid frame, whereby when the magnetic head is forced against a center portion of the arc, the center portion can be flexed toward the rigid frame while the opposite ends of the leaf spring remain fixedly secure against rotation relative to the frame.
摘要翻译：一个中间到中间的支撑装置（37）包括一个支撑可弹性变形的板簧（40）的刚性框架（38），用于接合一个磁性介质（16）以促使介质与磁头（14）接触。刚性框架支撑固定板簧相应的相对端（46,48）的一对附接元件（42,44; 52; 54），所述附接元件构造成使得当板簧安装在其间时，板簧弯曲形成一个连续的圆弧（50），该弧形凸起远离刚性框架，其中板簧的相对端被固定成抵抗相对于刚性框架的转动，由此当磁头被迫靠在圆弧，中心部分可以朝向刚性框架弯曲，同时板簧的相对端保持固定地抵靠相对于框架的旋转。

8. 发明授权

US5524105A Helical optical tape read/write system using at least one laser array 失效
标题翻译：使用至少一个激光阵列的螺旋光带读/写系统
公开(公告)号：US5524105A
公开(公告)日：1996-06-04
申请号：US249648
申请日：1994-05-26
申请人： Alan T. Brewen , Stephen C. Arnold , Daniel J. Sillick
发明人： Alan T. Brewen , Stephen C. Arnold , Daniel J. Sillick
IPC分类号： G11B7/003 , G11B7/125 , G11B7/13 , G11B7/135 , G11B15/61 , G11B7/095
CPC分类号： G11B7/0031 , G11B15/61 , G11B7/127 , G11B7/131 , G11B7/1359
摘要： An optical tape is helically passed over a cylindrical outer surface of a drum at a first speed to effect a substantial circumferential wrap thereof. A first write/read head with a writing laser array generates light beams that are directed along a first path through an optical rotator, and then via an optical arrangement on the drum onto a portion of the optical tape at a wrapping location of the drum to effect helical scanning of that portion of the optical tape. The optical rotator and the optical arrangement are rotated parallel to the first path at second and third rotational speeds, respectively, where the third speed is twice the second speed. This results in a dynamic imaging of the light beams from the first write/read head in closely spaced and parallel tracks to write binary data on the portion of the optical tape at the wrapping location using a passive focusing control. A linear array of binary data stored on tracks on the optical tape is read by the first write/read head transmitting an illumination beam via the optical rotator and the optical arrangement to illuminate a portion of the tape, and then detecting the linear array of binary data returned via a reflected light beam using a detector array. Multiple write/read heads with associated optical arrangements can use the same rotating optical rotator to concurrently write and read data at separate sections of the optical tape.
摘要翻译：光学带以第一速度螺旋地穿过滚筒的圆柱形外表面，以实现其基本周向包裹。具有写入激光器阵列的第一写入/读取头产生沿着第一路径通过光学旋转器引导的光束，然后经由滚筒上的光学布置在滚筒的包裹位置处的光学带的一部分上对光带的该部分进行螺旋扫描。光旋转器和光学装置分别以第二速度和第三转速平行于第一路径旋转，其中第三速度是第二速度的两倍。这导致在紧密间隔和平行轨道中来自第一写入/读取头的光束的动态成像，以使用无源聚焦控制在包裹位置处在光带的部分上写入二进制数据。存储在光带上的轨道上的二进制数据的线性阵列被第一写入/读取头读取，第一写入/读取头通过光学旋转器和光学装置传送照明光束以照射磁带的一部分，然后检测二进制的线性阵列使用检测器阵列通过反射光束返回的数据。具有相关光学布置的多个写/读头可以使用相同的旋转光旋转器在光带的单独部分同时写入和读取数据。

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