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公开(公告)号：US4396959A
公开(公告)日：1983-08-02
申请号：US190198
申请日：1980-09-24
CPC分类号： G11B5/5556
摘要： An improved apparatus and method is disclosed for controlling the position of one moveable member relative to another. In the disclosed preferred embodiment of a rotating disk memory system, the moving member is a head carriage structure and the other is a frame carrying a rotating data storage disk. From externally supplied position selectron information, and from internally determined polyphase position information, open loop position changing movements are determined and carried out in accordance with monitored incremental polyphase position information generated during the movement. When a destination location has been reached one or more servo systems close loop in order to maintain the moving member precisely at the newly commanded location. A rotor for moving the member is an aspect of the present invention.
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2.发明授权Data transducer position control system for rotating disk data storage equipment 失效数据传感器位置控制系统，用于旋转磁盘数据存储设备
公开(公告)号：US4660106A
公开(公告)日：1987-04-21
申请号：US496924
申请日：1983-05-23
CPC分类号： G11B5/5556
摘要： An improved apparatus and method is disclosed for controlling the position of one moveable member relative to another. In the disclosed preferred embodiment of a rotating disk memory system, the moving member is a head carriage structure and the other is a frame carrying a rotating data storage disk. From externally supplied position selectron information, and from internally determined polyphase position information, open loop position changing movements are determined and carried out in accordance with monitored incremental polyphase position information generated during the movement. When a destination location has been reached one or more servo systems close loop in order to maintain the moving member precisely at the newly commanded location. A rotor for moving the member is an aspect of the present invention.
摘要翻译： 公开了一种改进的装置和方法，用于控制一个可移动构件相对于另一个的位置。 在所公开的旋转磁盘存储器系统的优选实施例中，移动部件是头部托架结构，另一个是承载旋转数据存储盘的框架。 从外部提供的位置选择信息以及从内部确定的多相位置信息，根据在运动期间生成的监视的增量多相位置信息来确定和执行开环位置改变运动。 当一个目的地位置到达一个或多个伺服系统闭环，以便将移动构件精确地保持在新命令的位置。 用于移动构件的转子是本发明的一个方面。
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公开(公告)号：US4920434A
公开(公告)日：1990-04-24
申请号：US364810
申请日：1989-06-09
CPC分类号： G11B5/5521 , G11B21/08 , G11B21/085 , G11B21/106 , G11B5/5556
摘要： A higher performance, higher capacity, low cost fixed (Winchester) disk drive avoids the need of a servo surface and servo channel for head positioning by use of a mass balanced rotary actuator, a polyphase optical head position transducer coupled closely to the actuator and head position correction information sampled from the data surface by the data head.
摘要翻译： 更高性能，更高容量，低成本的固定（温彻斯特）磁盘驱动器避免了使用质量平衡旋转致动器的头部定位的伺服表面和伺服通道的需要，多相光学头位置传感器紧密地耦合到致动器和头部 由数据头从数据表面采样的位置校正信息。
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4.发明授权Data transducer position control system for rotating disk data storage equipment 失效数据传感器位置控制系统，用于旋转磁盘数据存储设备
公开(公告)号：US4872074A
公开(公告)日：1989-10-03
申请号：US326166
申请日：1989-03-20
CPC分类号： G11B5/5521 , G11B21/08 , G11B21/085 , G11B21/106 , G11B5/5556
摘要： A data storage device includes a frame, a rotating data storage disk defining a multiplicity of concentric data tracks on the major surfaces thereof and at least one data transducer head in close proximity to a said disk surface. A bidirectionally moveable electromechanical mover includes a microstep providing stepping motor supported by the frame. The electromechanical mover is moveable between and stabilized at a position related to each data track. A head mounting structure moved by the mover moves the head across the multiplicity of concentric data tracks. A bidirectional mover driver connected to the mover moves the structure to any selected one of said concentric data tracks in accordance with externally supplied track position information and maintains the structure substantially within data track during read and/or write operations by reference to the frame. A data track stabilization means includes the stepping motor and stabilizes the structure within a range between the boundaries of each data track. A time sampled fine position closed loop servo is connected to the driver and includes a single, data masked servo sector on a data surface of said disk containing track centerline servo control data therein readable by said head, a sample and hold circuit connected to the head during passes over the servo sector for holding control data read therefrom, and a correction signal generator connected to the sample and hold circuit for generating an offset signal for application to said driver to promote and maintain track centerline alignment of the head during read and write operations.
摘要翻译： 数据存储装置包括一个框架，一个旋转数据存储盘，在其主表面上限定多个同心数据轨道，以及至少一个数据传感器头，靠近所述盘表面。 双向移动机电移动器包括提供由框架支撑的步进电机的微步。 机电式移动器可以在与每个数据轨道相关的位置之间移动并稳定。 由移动器移动的头部安装结构将头部跨越多个同心数据轨道。 连接到移动器的双向移动器驱动器根据外部提供的轨道位置信息将结构移动到所述同心数据轨道中的任何一个所选择的一个，并且通过参考帧在读取和/或写入操作期间将结构基本保持在数据轨道内。 数据轨迹稳定装置包括步进电机，并将结构稳定在每个数据轨道的边界之间的范围内。 时间采样精细位置闭环伺服连接到驱动器，并且包括在所述盘的数据表面上的单个数据屏蔽的伺服扇区，其包含可由所述头读取的轨道中心线伺服控制数据，连接到头部的采样和保持电路 在通过伺服扇区的过程中，用于保持从其读取的控制数据;以及校正信号发生器，连接到采样和保持电路，用于产生用于施加到所述驱动器的偏移信号，以在读取和写入操作期间促进和维持磁头的磁道中心线对准 。
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5.发明授权Data transducer position control system for rotating disk data storage equipment 失效数据传感器位置控制系统，用于旋转磁盘数据存储设备
公开(公告)号：US4814909A
公开(公告)日：1989-03-21
申请号：US150994
申请日：1988-02-01
CPC分类号： G11B5/5556 , G11B21/08 , G11B21/085 , G11B21/106 , G11B5/5521
摘要： A servo calibration method is disclosed for a disk drive including a rotating data storage disk journalled to a frame and having a multiplicity of concentric data tracks defined on a major surface thereof and an actuator structure under the control of a programmed servo control microprocessor in response to coarse position information fed back to the microprocessor by a position encoder, and to fine position information fed back to the microprocessor by a data transducer reading from servo information prerecorded on the major surface of the disk, the actuator structure for moving the data transducer to each selected one of the data tracks during track seeking operations and for maintaining the transducer aligned with the data track during track following data read and/or write operations. Carried out during initialization, the method includes the steps of: automatically seeking to a region of radially outermost tracks, reading fine position information recorded in the single sector of each of a plurality of outermost tracks, and recording the outer track fine position information in memory; automatically seeking to a region of radially innermost tracks, reading fine position information recorded in the single sector of each of a plurality of innermost tracks, and recording the inner track fine position information in memory; for each data track to which a seek is initially commanded, which track lies between the outermost track region and the innermost track region, calculating with the microprocessor means a track centerline correction value lying between the outer track fine position information and the inner track fine position information, and applying the track centerline correction value so calculated as an offset value to the rotary actuator to correct any discrepancy between nominal track centerline defined by the position encoder.
摘要翻译： 公开了一种用于磁盘驱动器的伺服校准方法，所述磁盘驱动器包括旋转数据存储盘，所述旋转数据存储盘安装在框架上，并且具有在其主表面上限定的多个同心数据磁道和在编程的伺服控制微处理器的控制下响应于 通过位置编码器反馈给微处理器的粗略位置信息，以及通过数据传感器从盘上主记录的伺服信息读取的精细位置信息，将数据传感器移动到每个 在跟踪数据读取和/或写入操作期间，在跟踪追踪操作期间选择一个数据轨道，并在跟踪数据读取和/或写入操作期间维持换能器与数据轨迹对准。 在初始化期间执行的方法包括以下步骤：自动寻找径向最外侧轨道的区域，读取记录在多个最外侧轨迹中的每一个的单个扇区中的精细位置信息，并将外轨道精细位置信息记录在存储器 ; 自动寻找径向最内轨道的区域，读取记录在多个最内轨道中的每一个的单个扇区中的精细位置信息，并将内轨精细位置信息记录在存储器中; 对于最初被命令的搜索的每个数据轨道，哪个轨道位于最外侧轨道区域和最内侧轨道区域之间，用微处理器装置计算位于外轨道精细位置信息和内轨精细位置之间的轨道中心线校正值 信息，并将如此计算的轨道中心线校正值作为偏移值应用于旋转致动器，以校正由位置编码器定义的标称轨道中心线之间的任何差异。
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6.发明授权Data transducer position control system for rotating disk data storage equipment 失效数据传感器位置控制系统，用于旋转磁盘数据存储设备
公开(公告)号：US5119254A
公开(公告)日：1992-06-02
申请号：US689680
申请日：1991-04-23
CPC分类号： G11B5/5556 , G11B21/08 , G11B21/085 , G11B21/106 , G11B5/5521
摘要： A servo calibration method is disclosed for a disk drive including a rotating data storage disk journalled to a frame and having a multiplicity of concentric data tracks defined on a major surface thereof and an actuator structure under the control of a programmed servo control microprocessor in response to coarse position information fed back to the microprocessor by a position encoder, and to fine position information fed back to the microprocessor by a data transducer reading from servo information prerecordced on the major surface of the disk, the actuator structure for moving the data transducer to each selected one of the data tracks during track seeking operations and for maintaining the transducer aligned with the data track during track following data read and/or write operations. Carried out during initialization, the method includes the steps of: automatically seeking to a region of radially outermost tracks, reading fine position information recorded in the single sector of each of a plurality of outermost tracks, and recording the outer track fine position information in memory; automatically seeking to a region of radially innermost tracks, reading fine position information recorded in the single sector of each of a plurality of innermost tracks, and recording the inner track fine position information in memory; for each data track to which a seek is initially commanded, which track lies between the outermost track region and the innermost track region, calculating with the microprocessor means a track centerline correction value lying between the outer track fine position information and the inner track fine position information, and applying the track centerline correction value so calculated as an offset value to the rotary actuator to correct any discrepancy between nominal track centerline defined by the position encoder.
摘要翻译： 公开了一种用于磁盘驱动器的伺服校准方法，所述磁盘驱动器包括旋转数据存储盘，所述旋转数据存储盘安装在框架上，并且具有在其主表面上限定的多个同心数据磁道和在编程的伺服控制微处理器的控制下响应于 通过位置编码器反馈给微处理器的粗略位置信息，以及通过数据传感器从盘上的主表面上预先记录的伺服信息读取数据传感器，将反馈给微处理器的精细位置信息，用于将数据传感器移动到每个 在跟踪数据读取和/或写入操作期间，在跟踪追踪操作期间选择一个数据轨道，并在跟踪数据读取和/或写入操作期间维持换能器与数据轨迹对准。 在初始化期间执行的方法包括以下步骤：自动寻找径向最外侧轨道的区域，读取记录在多个最外侧轨迹中的每一个的单个扇区中的精细位置信息，并将外轨道精细位置信息记录在存储器 ; 自动寻找径向最内轨道的区域，读取记录在多个最内轨道中的每一个的单个扇区中的精细位置信息，并将内轨精细位置信息记录在存储器中; 对于最初被命令的搜索的每个数据轨道，哪个轨道位于最外侧轨道区域和最内侧轨道区域之间，用微处理器装置计算位于外轨道精细位置信息和内轨精细位置之间的轨道中心线校正值 信息，并将如此计算的轨道中心线校正值作为偏移值应用于旋转致动器，以校正由位置编码器定义的标称轨道中心线之间的任何差异。
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7.再颁专利Data transducer position control system for rotating disk data storage equipment 失效数据传感器位置控制系统，用于旋转磁盘数据存储设备
公开(公告)号：USRE32075E
公开(公告)日：1986-01-28
申请号：US596438
申请日：1984-04-03
CPC分类号： G11B5/5556 , G11B21/08 , G11B21/085 , G11B21/106 , G11B5/5521
摘要： An improved apparatus and method is disclosed for controlling the position of one moveable member relative to another. In the disclosed preferred embodiment of a rotating disk memory system, the moving member is a head carriage structure and the other is a frame carrying a rotating data storage disk. From externally supplied position selectron information, and from internally determined polyphase position information, open loop position changing movements are determined and carried out in accordance with monitored incremental polyphase position information generated during the movement. When a destination location has been reached one or more servo systems close loop in order to maintain the moving member precisely at the newly commanded location. A rotor for moving the member is an aspect of the present invention.
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公开(公告)号：US4490635A
公开(公告)日：1984-12-25
申请号：US442129
申请日：1982-11-16
CPC分类号： G11B5/5556
摘要： A bidirectional, pure torque generating electromechanical rotor mounted to a frame includes flux return top and base plates, a generally annular permanent magnet secured to one of the plates and a generally annular rotatable coil assembly placed between the permanent magnet and the other of the plates.
摘要翻译： 安装到框架上的双向，纯转矩产生机电转子包括磁通返回顶板和底板，固定到其中一个板上的大致环形的永磁体以及放置在永磁体和另一个板之间的大致环形的可旋转的线圈组件。
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9.发明授权Data transducer position control system for rotating disk data storage equipment 失效数据传感器位置控制系统，用于旋转磁盘数据存储设备
公开(公告)号：US4419701A
公开(公告)日：1983-12-06
申请号：US304209
申请日：1981-09-21
CPC分类号： G11B33/10 , G11B19/04 , G11B21/085 , G11B5/5547
摘要： Improvements in a system for controlling the position of a head carriage structure of a rotating disk data storage system are disclosed. The improvements include circuitry for generating a polyphase track boundary signal which compensates for drift, and which doubles or further increases the track density to increase storage capacity. A track centerline sensor circuit is greatly simplified by including the function thereof as microcode routines within a dedicated digital control processor. Error signals are measured periodically across the entire useful field of the disk, and they are constantly updated, so that improved compensation for drift, runout and offset of the disk relative to the data transducer is achieved. Track overshoot during track seeking movements of the transducer is accomodated, enabling reduced track average access time. Self contained diagnostic routines and a direct digital read out provide system status and error messages to operators and maintenance personnel, thereby facilitating maintenance and adjustment.
摘要翻译： 公开了一种用于控制旋转盘数据存储系统的头部托架结构的位置的系统的改进。 这些改进包括用于产生补偿漂移的多相磁道边界信号的电路，以及将磁道密度加倍或进一步增加以增加存储容量的电路。 轨道中心线传感器电路通过将其作为微代码例程的功能包括在专用数字控制处理器内而大大简化。 周期性地在盘的整个有效区域周期性地测量误差信号，并且它们不断更新，从而实现了相对于数据传感器对盘的漂移，跳动和偏移的改进的补偿。 在传感器的跟踪寻找运动期间跟踪过冲，允许减少轨道平均访问时间。 自备诊断程序和直接数字读出可以向操作员和维护人员提供系统状态和错误信息，从而便于维护和调整。
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公开(公告)号：USD249346S
公开(公告)日：1978-09-12
申请号：US733785
申请日：1976-10-19
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