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1. 发明授权

US4164769A Cross band coupling for stepper-motor-driven, rigid magnetic disc 失效
标题翻译：用于步进电机驱动的刚性磁盘的交叉带耦合
公开(公告)号：US4164769A
公开(公告)日：1979-08-14
申请号：US899044
申请日：1978-04-24
申请人： Robert G. Kaseta , Lenn Daugherty , Sigmund Hinlein , Michael Feldstein , Paul Otavsky , Harold Thackaberry , Robert E. Barrows
发明人： Robert G. Kaseta , Lenn Daugherty , Sigmund Hinlein , Michael Feldstein , Paul Otavsky , Harold Thackaberry , Robert E. Barrows
IPC分类号： G11B21/02 , G11B5/55 , G11B19/20 , G11B5/48 , G11B5/54 , G11B17/00
CPC分类号： G11B5/5521 , G11B19/20
摘要： An open loop, stepper-motor-driven, rigid magnetic disc memory apparatus for use with a data processing system. A rigid magnetic disc with high track density is driven by a stepper motor in an open-loop fashion or without servomechanism control. The memory apparatus includes: band structure including a spring bias for coupling stepper motor drive to apparatus supporting magnetic heads above and/or below the spinning disc and for temperature compensating for disc/apparatus expansion and contraction; manually operable control for zeroing the magnetic heads, moving and locking them in the disc's landing zone as, for example, while in transit, and providing a travel limit to head movement when the memory apparatus is operating; keying apparatus for preventing erroneous insertion and mis-alignment of and damage to an optical transducer relative to an optical mask arranged to spin with the disc structure; shim apparatus for precisely positioning the magnetic heads in the spin axis direction; viscously-coupled inertia apparatus for damping the stepping motor's step-rotary motion; a device for employing spinning motion associated with the disc for cooling purposes; and other structure.
摘要翻译：一种用于数据处理系统的开环，步进电机驱动的刚性磁盘存储装置。具有高轨道密度的刚性磁盘由步进电机以开环方式驱动或无伺服机构控制。存储装置包括：带结构，包括弹簧偏压，用于将步进电机驱动耦合到在旋转盘上方和/或下方支撑磁头的装置，以及用于盘/装置膨胀和收缩的温度补偿; 用于使磁头归零的手动操作控制，将其移动并将其锁定在盘的着陆区域中，例如在运输过程中，并且当存储器装置运行时为头部移动提供移动限制; 键控装置，用于防止光学传感器相对于被布置成与盘结构旋转的光学掩模的错误插入和错误对准和损坏; 用于将磁头精确地定位在旋转轴方向上的垫片装置; 用于阻尼步进电机步进旋转运动的粘性惯性装置; 用于采用与盘相关联的旋转运动用于冷却目的的装置; 等结构。

2. 发明授权

US4163996A Rigid magnetic disc memory apparatus employing stepper motor drive and pivotable head support with temperature compensation 失效
标题翻译：采用步进电机驱动的硬盘式磁盘存储装置和具有温度补偿的可枢转头部支架
公开(公告)号：US4163996A
公开(公告)日：1979-08-07
申请号：US899047
申请日：1978-04-24
申请人： Robert G. Kaseta , Lenn Daugherty , Sigmund Hinlein , Michael Feldstein , Harold Thackaberry , Robert E. Barrows
发明人： Robert G. Kaseta , Lenn Daugherty , Sigmund Hinlein , Michael Feldstein , Harold Thackaberry , Robert E. Barrows
IPC分类号： G11B5/55 , G11B5/54 , G11B5/48 , G11B17/00
CPC分类号： G11B5/5521
摘要： An open loop, stepper-motor-driven, rigid magnetic disc memory apparatus for use with a data processing system. A rigid magnetic disc with high track density is driven by a stepper motor in an open-loop fashion or without servomechanism control. The memory apparatus includes: band structure including a spring bias for coupling stepper motor drive to apparatus supporting magnetic heads above and/or below the spinning disc and for temperature compensating for disc/apparatus expansion and contraction; manually operable control for zeroing the magnetic heads, moving and locking them in the disc's landing zone as, for example, while in transit, and providing a travel limit to head movement when the memory apparatus is operating; keying apparatus for preventing erroneous insertion and mis-alignment of and damage to an optical transducer relative to an optical mask arranged to spin with the disc structure; shim apparatus for precisely positioning the magnetic heads in the spin axis direction; viscously-coupled inertia apparatus for damping the stepping motor's step-rotary motion; a device for employing spinning motion associated with the disc for cooling purposes; and other structure.
摘要翻译：一种用于数据处理系统的开环，步进电机驱动的刚性磁盘存储装置。具有高轨道密度的刚性磁盘由步进电机以开环方式驱动或无伺服机构控制。存储装置包括：带结构，包括弹簧偏压，用于将步进电机驱动耦合到在旋转盘上方和/或下方支撑磁头的装置，以及用于盘/装置膨胀和收缩的温度补偿; 用于使磁头归零的手动操作控制，将其移动并将其锁定在盘的着陆区域中，例如在运输过程中，并且当存储器装置运行时为头部移动提供移动限制; 键控装置，用于防止光学传感器相对于被布置成与盘结构旋转的光学掩模的错误插入和错误对准和损坏; 用于将磁头精确地定位在旋转轴方向上的垫片装置; 用于阻尼步进电机步进旋转运动的粘性惯性装置; 用于采用与盘相关联的旋转运动用于冷却目的的装置; 等结构。

3. 发明授权

US4438380A Stepping motor excitation circuitry 失效
标题翻译：步进电机励磁电路
公开(公告)号：US4438380A
公开(公告)日：1984-03-20
申请号：US219512
申请日：1980-12-23
申请人： Robert G. Kaseta
发明人： Robert G. Kaseta
IPC分类号： H02P8/32 , G05B19/40
CPC分类号： H02P8/32
摘要： Circuitry for driving stepping motor coils through a sequence of discrete steps, each winding of the stepping motor having drive circuitry which includes a first, low power circuit, having a regulated power supply, for supplying a substantially constant voltage and a second, high power circuit having a transistor constant current circuit, the substantially constant voltage being supplied to the base thereof. The second circuit can use a substantially unregulated power supply, the voltage of which may vary considerably. Such second circuit, however, supplies a substantially constant current pulse to its associated stepping motor winding even if the unregulated power supply voltage varies over a relatively wide range. The same circuitry configuration is used for each winding so that the current pulses supplied to each winding are substantially the same even if the winding resistances differ from winding to winding. Such circuitry is extremely effective when used for positioning the read/write heads of a disk storage device in a data processing system wherein rapid and accurate positioning of such heads relative to the disk surface is required. The heads can be controlled to move in a manner which permits them to be stopped at a desired position substantially at zero velocity so that little or no oscillation thereof occurs.
摘要翻译：用于通过一系列离散步骤驱动步进电动机线圈的电路，所述步进电机的每个绕组具有驱动电路，所述驱动电路包括具有调节电源的第一低功率电路，用于提供基本恒定的电压和第二高功率电路具有晶体管恒流电路，基本上恒定的电压被提供给其基极。第二电路可以使用基本上不受调节的电源，其电压可能变化很大。然而，即使未调节的电源电压在相对较宽的范围内变化，这样的第二电路也向其相关联的步进电机绕组提供基本恒定的电流脉冲。对于每个绕组使用相同的电路配置，使得即使绕组电阻不同于绕组也绕组，提供给每个绕组的电流脉冲基本相同。当用于将盘存储装置的读/写头定位在数据处理系统中时，这种电路非常有效，其中需要这种头相对于盘表面的快速和精确的定位。头部可以以允许它们基本上以零速度停止在期望位置的方式移动，使得很少或不发生振荡。

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