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1. 发明授权

US4833667A Spindle motor assembly for low acoustic noise environments 失效
标题翻译：用于低噪声环境的主轴电机组合
公开(公告)号：US4833667A
公开(公告)日：1989-05-23
申请号：US133947
申请日：1987-12-17
申请人： Joseph T. Castagna , Joseph C. Cardona
发明人： Joseph T. Castagna , Joseph C. Cardona
IPC分类号： G11B19/20 , G11B25/04 , G11B33/08
CPC分类号： G11B25/043 , G11B19/2018 , G11B33/08
摘要： A mounting structure for a spindle motor assembly is disclosed that is capable of reducing acoustic noise generated by the motor assembly. Standard spindle motor assembly parts are provided with a viscoelastic stator mounting system that isolates and damps vibrations between the rotor assembly and the rest of the spindle motor assembly. Additionally, rotor slots are provided in the rotor cap. The slots are designed to ensure that the resonant frequency of the rotor cap is substantially different than the switching frequency of the motor itself.
摘要翻译：公开了一种用于主轴电动机组件的安装结构，其能够降低由电动机组件产生的声学噪声。标准主轴电机组件部件设置有粘弹性定子安装系统，其隔离和阻止转子组件与主轴电机组件的其余部件之间的振动。此外，转子槽设置在转子盖中。槽被设计成确保转子盖的共振频率与电动机本身的开关频率基本不同。

2. 外观设计

USD286879S Magnetic disc drive housing 失效
公开(公告)号：USD286879S
公开(公告)日：1986-11-25
申请号：US605168
申请日：1984-04-30
申请人： Stephen R. Viskochil
设计人： Stephen R. Viskochil

3. 发明授权

US4595221A Disc transfer device 失效
标题翻译：光盘传输设备
公开(公告)号：US4595221A
公开(公告)日：1986-06-17
申请号：US658536
申请日：1984-10-09
申请人： Richard de Geus , James J. Grubish
发明人： Richard de Geus , James J. Grubish
IPC分类号： B66C1/28 , B25B9/00 , B65G7/12 , G11B23/00 , B66C1/30
CPC分类号： B25B9/00 , G11B23/00
摘要： A disc transfer device for the manipulation of hard discs without damage to the recording surfaces thereof. The device is manually operated and consists of a U-shaped handle adapted for fitting over a disc storage spindle. The handle includes two grippers made of a rigid and smooth yet soft material which will not damage the disc surfaces. One gripper is fixedly attached to one end of the handle, and the other gripper is attached to a pivotable arm affixed to the other end of the handle. A lever attached to the movable arm allows for moving the arm outwards to enable a disc to fit between the grippers. A spring biases the arm in the normally closed position.
摘要翻译：一种用于操纵硬盘而不损坏其记录表面的盘传送装置。该装置是手动操作的，并且由适于装配在盘存储主轴上的U形手柄组成。手柄包括由刚性光滑而柔软的材料制成的两个夹持器，其不会损坏盘表面。一个夹持器固定地附接到手柄的一端，另一个夹持器附接到固定到手柄另一端的可枢转臂。附接到可动臂的杠杆允许向外移动臂以使盘能够装配在夹具之间。弹簧将手臂偏置在常闭位置。

4. 发明授权

US4881139A Latch mechanism for rotary actuator and the like 失效
标题翻译：旋转执行机构的锁定机构等
公开(公告)号：US4881139A
公开(公告)日：1989-11-14
申请号：US183457
申请日：1988-04-14
申请人： Henry B. Hazebrouck
发明人： Henry B. Hazebrouck
IPC分类号： G11B21/22 , H01F7/14
CPC分类号： G11B21/22 , H01F7/14
摘要： A latch mechanism for use in a disc drive rotary actuator and like magnetic device includes a selectively energizable electromagnet mounted to the actuator and spaced from the magnets, and a ferrous arm pivotally attached between the magnets and the electromagnet whereby the latch arm can assume two stable positions of low magnetic reluctance for stray flux from the magnets. In one position the latch arm pivots towards the magnets and engages the rotary actuator. In the other position, the latch arm pivots towards the electromagnet and disengages the rotary actuator. Positioning of the latch arm is dependent on momentary energization and polarity of the electromagnet.
摘要翻译：用于盘驱动旋转致动器和类似磁性装置的闩锁机构包括安装到致动器并与磁体间隔开的可选择性激励的电磁体，以及枢转地附接在磁体和电磁体之间的铁臂，由此闩锁臂可以呈现两个稳定的低磁阻对来自磁体的杂散磁通的位置。在一个位置中，闩锁臂朝向磁体枢转并接合旋转致动器。在另一位置，闩锁臂朝向电磁铁枢转并且使旋转致动器脱离。锁定臂的定位取决于电磁铁的瞬时通电和极性。

5. 发明授权

US4697098A Composite gate generator circuit for detecting valid data signals 失效
标题翻译：用于检测有效数据信号的复合门发生器电路
公开(公告)号：US4697098A
公开(公告)日：1987-09-29
申请号：US743037
申请日：1985-06-10
申请人： Robert L. Cloke
发明人： Robert L. Cloke
IPC分类号： G11B5/09 , G01R29/02 , G11B20/22 , H03K5/1532 , H03K5/153
CPC分类号： H03K5/1532 , G01R29/02
摘要： A gate generator useful for validating readout signals incorporates three channels, including differentiators and threshold comparators, and a logic circuit coupled to the output circuits of the channels for passing valid readout signals. The output signals of the comparators and of detected zero crossings derived from a differentiated signal are fed to the logic circuit for processing.
摘要翻译：用于验证读出信号的门极发生器包括三个通道，包括微分器和阈值比较器，以及耦合到通道的输出电路的逻辑电路，用于传递有效的读出信号。比较器的输出信号和从微分信号导出的检测到的过零点被馈送到逻辑电路进行处理。

6. 发明授权

US4616275A Disc servo with 1F-2F servo pattern 失效
标题翻译：光盘伺服1F-2F伺服模式
公开(公告)号：US4616275A
公开(公告)日：1986-10-07
申请号：US663398
申请日：1984-10-22
申请人： Bradford D. Peeters
发明人： Bradford D. Peeters
IPC分类号： G11B5/596 , G11B5/56
CPC分类号： G11B5/596
摘要： A disc servo pattern and servo detector for use in a system for reading and writing data on a magnetic disc. The magnetic disc has a servo data area formatted with a multiplicity of servo tracks which are formatted with a 1F-2F servo pattern. Each servo frame has a single sync pulse and a single position pulse at predefined positions. The 1F frames are those frames where the sync pulse and position pulse are of opposite polarity. The 2F frames are those where the sync and position pulses are of like polarity. Fill-in pulses separate neighboring sync and position pulses of like polarity.In a preferred embodiment the servo pattern in each servo track is the same as the servo pattern of the neighboring servo track shifted by one frame. Each track has a repeating pattern of two 1F frames followed by two 2F frames, and so on.The system has a servo head for reading a servo pattern on a magnetic disc and producing a servo carrier signal corresponding thereto. The servo detector generates a position signal proportional in amplitude and polarity to the extent and direction that the servo data head is off track. It includes an amplifier for amplifying the servo signal and producing a servo carrier signal. An integrator integrates the servo carrier signal and develops a position signal. A switch connects the servo carrier signal to integrator at times corresponding to the position pulses in a predefined pattern of the frames.
摘要翻译：一种用于在磁盘上读取和写入数据的系统中的盘式伺服模式和伺服检测器。磁盘具有用多个伺服磁道格式化的伺服数据区域，其以1F-2F伺服模式格式化。每个伺服帧在预定位置具有单个同步脉冲和单个位置脉冲。 1F帧是同步脉冲和位置脉冲具有相反极性的那些帧。 2F帧是同步和位置脉冲类似极性的帧。填充脉冲分离相同极性的相邻同步和位置脉冲。在优选实施例中，每个伺服磁道中的伺服模式与相移的一个伺服磁道的伺服模式相同。每个轨道具有两个1F帧的后续两个2F帧的重复模式，依此类推。该系统具有用于读取磁盘上的伺服模式的伺服头，并产生与其对应的伺服载波信号。伺服检测器产生与伺服数据头不跟踪的程度和方向成比例的幅度和极性的位置信号。它包括用于放大伺服信号并产生伺服载波信号的放大器。积分器集成伺服载波信号并产生位置信号。开关将伺服载波信号连接到积分器，在与帧的预定模式中的位置脉冲对应的时间。

7. 发明授权

US4305105A Linear actuator for magnetic disc drive and the like 失效
标题翻译：用于磁盘驱动器的线性致动器等
公开(公告)号：US4305105A
公开(公告)日：1981-12-08
申请号：US159661
申请日：1980-06-16
申请人： Bin L. Ho , Charles Dong
发明人： Bin L. Ho , Charles Dong
IPC分类号： G11B5/55 , H02K41/035 , G11B21/08
CPC分类号： H02K41/0356 , G11B5/5521
摘要： A linear actuator for a magnetic disc drive has shortened magnetic flux lines totally confined within the actuator housing whereby the actuator can be placed in closer proximity to a disc and thus reduce the size of the disc drive package. The actuator includes a generally cylindrical housing with magnets attached to the inside surface of the housing. A cylindrical bobbin having a voice coil wound on its periphery is positioned within the housing and linearly movable therein with the voice coil in close proximity to the magnets. An annular magnetic flux transmission means is attached to one face of the housing and a flux transmission plate is attached to the opposite face of the housing with the flux transmission means providing magnetic flux paths and preventing flux leakage from the housing.
摘要翻译：用于磁盘驱动器的线性致动器具有缩短的磁通线，其全部被限制在致动器壳体内，由此致动器可以被放置在更靠近盘的位置，从而减小了盘驱动器封装的尺寸。致动器包括大致圆柱形的壳体，其具有附接到壳体的内表面的磁体。具有缠绕在其外围的音圈的圆柱形线轴定位在壳体内并且线性地可移动，其中音圈紧邻磁体。环形磁通传递装置安装在壳体的一个面上，并且磁通传输板附接到壳体的相对面，磁通传递装置提供磁通路径并防止磁体从壳体泄漏。

8. 发明授权

US4843503A Head arm damping device for disc drive actuators 失效
标题翻译：磁头驱动执行器的头臂阻尼装置
公开(公告)号：US4843503A
公开(公告)日：1989-06-27
申请号：US133946
申请日：1987-12-17
申请人： Henry B. Hazebrouck , Joseph T. Castagna
发明人： Henry B. Hazebrouck , Joseph T. Castagna
IPC分类号： G11B5/58 , G11B33/08
CPC分类号： G11B33/08 , G11B5/58 , G11B5/5582
摘要： In an information storage system having a plurality of data storage medias which may be read and/or written onto by multiple read/write heads carried by a plurality of aligned head arms, a damping device is provided for reducing vibrations within the head arms. The damping device is formed of a compressible viscoelastic material having a relatively high loss factor.
摘要翻译：在具有多个数据存储介质的信息存储系统中，可以通过由多个对准的头臂承载的多个读/写头来读取和/或写入数据存储介质，提供了一种用于减少头臂内的振动的阻尼装置。阻尼装置由具有相对高损耗因子的可压缩粘弹材料形成。

9. 外观设计

USD266670S Magnetic disc drive 失效
公开(公告)号：USD266670S
公开(公告)日：1982-10-26
申请号：US149973
申请日：1980-05-15
申请人： Terence H. West
设计人： Terence H. West

10. 发明授权

US4691254A Data processing system including encoder, decoder and write precompensator, using run length limited code 失效
标题翻译：数据处理系统包括编码器，解码器和写预补偿器，使用运行长度有限的代码
公开(公告)号：US4691254A
公开(公告)日：1987-09-01
申请号：US748157
申请日：1985-06-24
申请人： Robert L. Cloke
发明人： Robert L. Cloke
IPC分类号： G11B5/09 , G11B20/10 , G11B20/14 , H03M5/14 , H03M9/00
CPC分类号： G11B20/10194 , H03M5/145
摘要： A data processing system employs a run-length limited code and incorporates an encoder and decoder sharing common circuits, including a data shift register, a code shift register and a write precompensation logic circuit. Data bits are processed as single words or double words depending upon the pattern of data bits as they are shifted.
摘要翻译：数据处理系统采用游程长度有限的代码，并且包括共享公共电路的编码器和解码器，包括数据移位寄存器，代码移位寄存器和写预补偿逻辑电路。数据位被处理为单个字或双字，这取决于数据位在移位时的模式。

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