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1. 发明授权

US5056078A Load mechanism for a beam addressable information storage disk drive system 失效
标题翻译：用于光束可寻址信息存储磁盘驱动器系统的负载机制
公开(公告)号：US5056078A
公开(公告)日：1991-10-08
申请号：US287805
申请日：1988-12-20
申请人： James R. Carey , David L. Rowden , Patrick J. Champagne
发明人： James R. Carey , David L. Rowden , Patrick J. Champagne
IPC分类号： G11B17/028 , G11B17/04 , G11B19/20
CPC分类号： G11B17/041 , G11B17/0282 , G11B17/0288 , G11B19/2009
摘要： A disk drive spindle and spindle motor assembly is mounted on a support platform which is translated reciprocally toward and away from a stationary disk cartridge by a pair of rotationally driven cranks positioned along opposite sides of the platform. The cranks are coupled to the platform by eccentrically mounted support rods loosely captured in the span between dual sets of parallel, compliant leaf springs attached to side edges of the platform. The rotational cranks are provided with a degree of overtravel to forcefully urge the platform, when in the operational position, against precision stops formed on the underside of a mount plate located between the platform and disk cartridge. The spatial relationship of a disk engaging surface on the drive spindle relative to the precision stops is such as to precisely position the rotating disk in parallel with the tracking axis of the read/write head of the system. A pair of holes in the platform mate in sliding relationship with a pair of locator pins depending from the mount plate to maintain correct x-y positioning of the platform during its reciprocal translation.
摘要翻译：磁盘驱动器主轴和主轴电机组件安装在支撑平台上，该支撑平台通过沿平台的相对侧定位的一对旋转驱动的曲柄来平移地朝向和远离固定盘盒平移。曲柄通过偏心安装的支撑杆联接到平台，所述支撑杆松散地捕获在附接到平台的侧边缘的两组平行的柔性板簧之间的跨度中。旋转曲柄设置有一定程度的超程，以在位于操作位置时强制地推动平台抵靠位于平台和盘盒之间的安装板的下侧上形成的精确挡块。驱动主轴上的盘接合表面相对于精密止挡件的空间关系是使旋转盘与系统的读/写头的跟踪轴平行地精确定位。平台中的一对孔与从安装板悬挂的一对定位销滑动关系，以在其平移过程中保持平台的正确的x-y定位。

2. 发明授权

US5111350A Shutter opening apparatus for an information storage disk drive system 失效
标题翻译：用于信息存储盘驱动系统的快门打开装置
公开(公告)号：US5111350A
公开(公告)日：1992-05-05
申请号：US622173
申请日：1990-12-04
申请人： James R. Carey , David L. Rowden
发明人： James R. Carey , David L. Rowden
IPC分类号： G11B17/04
CPC分类号： G11B17/0436
摘要： In an information disk drive system, a pivoted shutter opening lever is positioned in a cartridge receiving guide in the same plane as the disk in the cartridge. The lever is mounted on a movable pivot with a shutter engaging member positioned to begin opening the cartridge shutter to expose a segment of disk recording tracks only after the segment is inside the disk drive and to complete opening of the shutter at an intermediate stage of cartridge insertion to allow nesting of disk access components within the disk access opening in the cartridge prior to the cartridge reaching its final operating position. Interference between the opening lever and the fully opened shutter during final travel of the cartridge is avoided by a mechanism which moves the lever pivot by a sufficient amount to allow the shutter engaging member to translate in a straight line parallel to the insertion path of the cartridge during final insertion motion of the cartridge. Two embodiments of the pivot moving mechanism are shown.
摘要翻译：在信息盘驱动系统中，枢转的快门打开杆位于与盒中的盘相同的平面中的盒接收引导件中。杠杆安装在可移动的枢轴上，闸板接合构件定位成开始打开暗盒挡板，仅在盘片在盘驱动器内部并且在墨盒的中间阶段完成快门的打开，才露出一段盘记录轨道插入以允许在磁带盒达到其最终操作位置之前将磁盘访问组件嵌套在磁带盒中的磁盘访问开口内。通过使杠杆枢轴移动足够量的机构来避免打开杆和完全打开的快门之间的干扰，所述机构将杠杆枢轴移动足够的量，以允许快门接合构件平行于墨盒的插入路径的直线平移在盒的最终插入运动期间。示出了枢转运动机构的两个实施例。

3. 发明授权

US5023861A Single stage tracking actuator apparatus for optical beam information storage drive system 失效
标题翻译：用于光束信息存储驱动系统的单级跟踪执行器装置
公开(公告)号：US5023861A
公开(公告)日：1991-06-11
申请号：US287801
申请日：1988-12-20
申请人： Patrick J. Champagne , Ingolf Sander
发明人： Patrick J. Champagne , Ingolf Sander
IPC分类号： G11B7/085 , G11B21/08
CPC分类号： G11B21/083 , G11B7/08582
摘要： Single stage tracking actuator apparatus for an optical or magneto-optical disk drive system in which a read/write head is suspended by parallel flexures between mutually isolated magnetic circuits disposed on opposite sides of the head, one of the magnetic circuits being nested in the span between the parallel flexures. The flexure suspension provides friction-free translatable motion of the head in the longitudinal direction parallel to a radial line relative to the information storage disk. An electromagnetic coil provided with tracking actuator signals is formed about the head axially concentric with and transverse to the longitudinal center line of the head and is centrally positioned on the head between the points at which the free ends of the flexures are attached to the ends of the head. The end turn segments of the coil are disposed transversely of magnetic flux lines in elongated air gaps formed in the magnetic circuits to provide the driving force for the actuator. The friction-free suspension permits the actuator to perform both the track seek and the tracking modes of operation.
摘要翻译：用于光学或磁光盘驱动系统的单级跟踪致动器装置，其中读/写头通过设置在头部相对侧上的彼此隔离的磁路之间的平行弯曲悬挂，其中一个磁路嵌套在跨度平行弯曲之间。弯曲悬架在平行于相对于信息存储盘的径向线的纵向方向上提供无摩擦的平移运动。设置有跟踪致动器信号的电磁线圈形成在与头部的纵向中心线轴向同心并横向于头部的纵向中心线的头部周围，并且位于头部之间，其中挠曲件的自由端附接到头部。线圈的端部转动部分横向地设置在形成在磁路中的细长气隙中的磁通线上，以为致动器提供驱动力。无摩擦悬挂允许执行器执行轨迹寻找和跟踪操作模式。

4. 发明授权

US5050146A Track seek recovery system and method 失效
标题翻译：追踪恢复系统和方法
公开(公告)号：US5050146A
公开(公告)日：1991-09-17
申请号：US387910
申请日：1989-07-31
申请人： Jerome F. Richgels , John C. Kuklewicz
发明人： Jerome F. Richgels , John C. Kuklewicz
IPC分类号： G11B7/085 , G11B21/08
CPC分类号： G11B21/083 , G11B7/08529
摘要： At the conclusion of a track seek operation, handoff to track following servo control is delayed for a short time period during which the drive microprocessor determines if the head has failed to stop at the target track by sensing the occurrence of a predetermined number of track crossing pulses, the detection of which causes iterative generation and application of braking current pulses to the head actuator motor. The amplitude and duration of each braking current pulse is chosen to cause forward motion of the head to be retarded to a predetermined percent of its pre-existing velocity. The microprocessor routine includes provision for iteratively determining when the head has slowed to a velocity which allows the track following servo to acquire control of the head. Once stopped on a track, a short seek is executed to return the head to the desired target track. Provision is also made in the microprocessor routine to iteratively determine direction of head movement to complement the polarity of the braking current pulse in the event a previous pulse has reversed the direction of head movement thus assuring that the braking current pulses always result in retarding forward motion of the head.
摘要翻译：轨迹搜索操作结束时，追踪跟随伺服控制的越区切换被延迟很短的时间段，在此期间，驱动微处理器通过感测预定数目的轨道交叉的出现来确定磁头是否已经不能停在目标轨道脉冲，其检测导致制动电流脉冲的迭代产生和应用到头致动器电动机。选择每个制动电流脉冲的幅度和持续时间以使磁头的向前运动被延迟到其预先存在的速度的预定百分比。微处理器程序包括用于迭代地确定头部何时已经变慢到使跟踪伺服跟踪获得头部控制的速度的设置。一旦停在轨道上，就执行一个短暂的寻找，使头部返回到所需的目标轨道。在微处理器程序中还进行了规定，以反复确定磁头运动的方向以补偿制动电流脉冲的极性，前提是脉冲已经反转磁头运动的方向，从而确保制动电流脉冲总是导致向前运动的延迟的头。

5. 发明授权

US5033039A Positioning system for flexure mounted read/write head 失效
标题翻译：挠性安装读/写头定位系统
公开(公告)号：US5033039A
公开(公告)日：1991-07-16
申请号：US387914
申请日：1989-07-31
申请人： Jerome F. Richgels
发明人： Jerome F. Richgels
IPC分类号： G11B21/08
CPC分类号： G11B21/085
摘要： A random access information storage disk drive system of the optical or magneto-optical type with the read/write head mounted between parallel flexures for suspension in a linear actuator motor. Dynamic spring force compensation is provided incrementally as the head is moved radially inward and outward of the at-rest position of the flexures to compensation for the increasing restoring force exerted by the flexures as the head is moved towards the extremes of its tracking path.
摘要翻译：一种具有读/写头的光学或磁光型的随机存取信息存储盘驱动系统，其安装在平行弯曲之间，用于悬挂在线性致动器马达中。动态弹簧力补偿被递增地提供，因为磁头沿挠曲件的静止位置的径向向内和向外移动，以补偿当磁头向其跟踪路径的极端移动时由挠曲件施加的增加的恢复力。

6. 发明授权

US5001700A Disk clamp and centering apparatus for a beam addressable disk drive system 失效
标题翻译：用于光束可寻址磁盘驱动器系统的磁盘夹和定心装置
公开(公告)号：US5001700A
公开(公告)日：1991-03-19
申请号：US331421
申请日：1989-03-30
申请人： David L. Rowden , Patrick J. Champagne , Gary R. Clauson
发明人： David L. Rowden , Patrick J. Champagne , Gary R. Clauson
IPC分类号： G11B17/028
CPC分类号： G11B17/0282 , G11B17/0284
摘要： Apparatus for centering and clamping a disk on a spindle-drive is disclosed. A bistable magnetic clamp normally held in an axially offset position from the plane of the disk is preferentially drawn to a coupler washer on the spindle-drive when the spindle-drive and clamping device are relatively moved toward each other after the disk is inserted into the drive. To accommodate significant initial misalignment of the disk, as might typically occur with a cartridge mounted disk, in a very short throw clamping motion, a multi-frustrum centering member is used. The frustrum surface nearest the disk has a gradual slope assuring meshing of the centering member with the central aperture of the disk over a wide range of initial misalignment. Once the disk is coarsely centered, precision centering is achieved during the final clamping stage by the second frustrum surface which is at steep slope relative to the plane of the disk.
摘要翻译：公开了一种用于在盘驱动器上定心和夹紧盘的装置。当主轴驱动和夹紧装置在盘被插入到主轴驱动器之后相对移动时，通常保持在与盘的平面的轴向偏移位置的双稳态磁性夹具优先地被抽吸到主轴驱动器上的联接垫圈上驾驶。为了适应显着的初始未对准的磁盘，如通常以盒式磁盘安装的磁盘发生的那样，在非常短的投掷夹紧运动中，使用多楔形定中心构件。最靠近圆盘的隅面具有逐渐的坡度，确保定心构件与盘的中心孔在宽的初始失准范围内啮合。一旦盘被粗心居住，在最后夹紧阶段，通过相对于盘的平面处于陡峭的斜坡的第二台阶表面实现精确对中。

7. 发明授权

US5056079A Multi-state optical contrasts in optical recording media for data compression 失效
标题翻译：用于数据压缩的光学记录介质中的多态光学对比度
公开(公告)号：US5056079A
公开(公告)日：1991-10-08
申请号：US228395
申请日：1988-08-04
申请人： Chi H. Chung
发明人： Chi H. Chung
IPC分类号： G11B7/0045
CPC分类号： G11B7/00455 , G11B7/00451 , G11B7/00454
摘要： A method and apparatus for increasing the information storage capacity of optical recording structures by utilizing a laser beam of different powers to produce a selected one of a plurality of different physical states. These states each produce a different optical contrast. If the number of different optical contrasts is greater than two, then encoding schemes based on three or more bits may be used to store the information thus increasing the data density on the optical recording structure, such as an optical disc. In order to promote the stability of the physical states and to enhance the speed of transition between the states, a stabiliment layer is added adjacent and covering the photosensitive layer of the disc. The stabiliment layer itself is ablated in the ablation state of the photosensitive layer.
摘要翻译：一种用于通过利用不同功率的激光束来增加光学记录结构的信息存储容量以产生多个不同物理状态中选定的一种的方法和装置。这些状态各自产生不同的光学对比度。如果不同光学对比度的数量大于2，则可以使用基于三个或更多位的编码方案来存储信息，从而增加光学记录结构（例如光盘）上的数据密度。为了促进物理状态的稳定性和提高状态之间的转变速度，在光盘的光敏层附近添加稳定层。稳定层本身在感光层的消融状态下被消融。

8. 发明授权

US5025436A Disk cartridge positioning mechanism for an information storage disk drive system 失效
标题翻译：用于信息存储磁盘驱动器系统的磁盘盒定位机构
公开(公告)号：US5025436A
公开(公告)日：1991-06-18
申请号：US287806
申请日：1988-12-20
申请人： Ronald A. Crain , Harney James D. , James R. Carey
发明人： Ronald A. Crain , Harney James D. , James R. Carey
IPC分类号： G11B17/03 , G11B17/04
CPC分类号： G11B17/041 , G11B17/03
摘要： Cartridge positioning apparatus for loading and unloading the disk cartridge of an information storage disk drive system employs a dual function, motor-actuated, laterally moving linear drive mechanism to drive a plurality of drive plates located in an interstitial space between a cartridge receiving guide means and a central mount plate by means of a drive tab extending up through the mount plate. The tab engages a camming plate which operates against the central portion of a pivoted sector gear to convert the lateral tab drive motion into amplified longitudinal motion parallel with the direction that the disk cartridge is inserted and removed. The camming plate includes an idling provision to hold the sector gear stationary while the motor-performs other load functions. The sector gear drives a longitudinal drive mechanism which carries one or more members adapted to contact the disk cartridge for loading or unloading the cartridge depending on the direction of movement of the motor-actuated drive tab.
摘要翻译：用于装载和卸载信息存储盘驱动系统的盘盒的盒定位装置采用双重功能的电机驱动的横向运动的线性驱动机构来驱动位于盒接收引导装置和盒接收引导装置之间的间隙空间中的多个驱动板一个中央安装板，通过一个向上延伸穿过安装板的驱动接头。突片接合凸轮板，该凸轮板操作抵靠枢转的扇形齿轮的中心部分，以将横向凸片驱动运动转换成与盘盒被插入和移除的方向平行的放大的纵向运动。该凸轮板包括一个空转设备，用于在电动机执行其他负载功能时保持扇形齿轮固定。扇形齿轮驱动纵向驱动机构，该纵向驱动机构承载一个或多个适于接触磁盘盒的构件，用于根据电动驱动的驱动凸片的移动方向装载或卸载盒。

9. 发明授权

US5586100A Transversal filter and method for cancelling intersymbol interference 失效
标题翻译：横向滤波器和消除符号间干扰的方法
公开(公告)号：US5586100A
公开(公告)日：1996-12-17
申请号：US955618
申请日：1992-10-13
申请人： Tzuo-Chang Lee , James H. Lauffenburger , Steve S. Popovich
发明人： Tzuo-Chang Lee , James H. Lauffenburger , Steve S. Popovich
IPC分类号： G11B20/10 , G11B7/00 , G11B7/005 , H03H17/06 , H03H21/00 , H04B3/06 , G06F17/10
CPC分类号： H03H17/06
摘要： An apparatus and method for filtering intersymbol interference from an information signal generated from a storage medium. This apparatus utilizes a delay line, gain devices, summing devices, and has specified transfer functions. Furthermore, this apparatus and method can make real time adjustments in order to maintain an optimal level of filtering.
摘要翻译：一种用于从存储介质产生的信息信号中滤除符号间干扰的装置和方法。该装置利用延迟线，增益装置，求和装置，并具有指定的传送功能。此外，该装置和方法可以进行实时调整，以保持最佳的滤波电平。

10. 发明授权

US5053903A Disk clamp positioning apparatus for information storage disk drive system 失效
标题翻译：盘式定位装置，用于信息存储磁盘驱动系统
公开(公告)号：US5053903A
公开(公告)日：1991-10-01
申请号：US329467
申请日：1989-03-28
申请人： James D. Harney , Ronald A. Carin , James R. Carey , Philip R. Ashe
发明人： James D. Harney , Ronald A. Carin , James R. Carey , Philip R. Ashe
IPC分类号： G11B17/028 , G11B17/04
CPC分类号： G11B17/0436 , G11B17/0284
摘要： In an optical or magneto-optical disk drive system adapted to receive a shuttered disk cartridge, interference between the disk clamp and the shutter during cartridge insertion is obviated by securing the clamp onto a sliding mount plate which is normally biased to hold the clamp in a rearward position displaced from its normal operating position in alignment with the disk spindle-drive. A drive cam engaged by the leading edge of the cartridge during insertion is drivingly coupled to the mount plate by a double rack and pinion arrangement to drive the mount plate forward into normal operating position after the cartridge shutter is opened. To assure that the clamp is firmly positioned in alignment with the disk spindle-drive, the pinion is compliantly mounted to allow slight overtravel of the drive cam after the clamp mount is arrested by the precision stop thus exerting a forward bias force to the amount plate which holds the clamp mount firmly in place.
摘要翻译：在适于接收快门磁盘盒的光学或磁光盘驱动器系统中，通过将夹具固定到滑动安装板上来消除盒夹和快门在盒插入期间的干扰，滑动安装板通常被偏置以将夹具保持在向后位置从其与盘主轴驱动器对准的其正常操作位置偏移。在插入期间由盒的前缘接合的驱动凸轮通过双齿条和小齿轮装置驱动地连接到安装板，以在打开盒快门后将安装板向前驱动到正常的操作位置。为了确保夹具牢固地定位成与盘轴驱动器对准，小齿轮被顺从地安装，以便在夹具安装件被精密停止件阻挡之后允许驱动凸轮的轻微超程，从而向量板施加正向偏压力其将夹紧装置牢固地保持在适当位置。

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