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    • 1. 发明授权
    • Head position control system for fixed drive including position encoder,
temperature sensor and embedded fine servo information
    • 固定驱动头位置控制系统,包括位置编码器,温度传感器和嵌入式精细伺服信息
    • US5084791A
    • 1992-01-28
    • US717874
    • 1991-06-12
    • William N. ThanosBruce R. PetersonWilliam G. MoonJoshua LindsayThomas R. Stone
    • William N. ThanosBruce R. PetersonWilliam G. MoonJoshua LindsayThomas R. Stone
    • G11B5/55G11B5/596G11B7/085
    • G11B5/5556G11B5/59627G11B7/085Y10S360/901Y10S360/902
    • A micro-Winchester disk drive subsystem includes a data block sequencer, cache memory and interface for a host computing machine. The drive includes a base and a plurality of non-removable directly rotated disks forming data storage surfaces. A balanced rotary head transducer actuator is mounted to the base for a plurality of data transducer heads among a multiplicity of concentric data tracks formed on each data storage surface of each of the disks. The track following servo system includes a position encoder coupled between the actuator structure and the base, prerecorded data track centerline information at a radially outermost region and at a radially innermost region of each data surface, and a temperature sensor for sensing temperature of the base at the vicinity of the position encoder. An actuator driver circuit is connected to supply electrical driving current to the actuator structure; and, a single, time divided multi-tasked digital including an analog to digital converter is connected to receive the position information from the position encoder, centerline information from the disk surfaces read by the data transducer and temperature sensed by the temperature sensor during a calibration operation in one phase of its operational cycle, the other phase being devoted to supervision data block handling functions of disk drive data block sequencer cache memory and interface. During track following operations, centerline information is derived from information obtained in the calibrate operation. The temperature sensor is periodically checked and recalibration is carried out when drive temperature changes.
    • 微型温彻斯特磁盘驱动器子系统包括用于主计算机的数据块定序器,高速缓冲存储器和接口。 驱动器包括形成数据存储表面的基座和多个不可拆卸的直接旋转的盘。 平衡的旋转头传感器致动器安装到基座上用于形成在每个盘的每个数据存储表面上的多个同心数据轨道中的多个数据传感器头。 轨道跟随伺服系统包括耦合在致动器结构和基座之间的位置编码器,在每个数据表面的径向最外侧区域和径向最内部区域处的预先记录的数据轨道中心线信息,以及用于感测基座的温度的温度传感器 位置编码器附近。 致动器驱动电路被连接以向致动器结构提供电驱动电流; 并且,连接包括模数转换器的单个时分多任务数字接收来自位置编码器的位置信息,由数据传感器读取的盘表面的中心线信息和在校准期间由温度传感器感测的温度 在其操作周期的一个阶段进行操作,另一阶段专门用于磁盘驱动器数据块定序器缓存存储器和接口的监控数据块处理功能。 在跟踪跟踪操作期间,从校准操作中获得的信息导出中心线信息。 定期检查温度传感器,驱动温度变化时进行重新校准。
    • 2. 发明授权
    • High performance, high capacity micro-winchester disk drive
    • 高性能,高容量微硬化盘驱动器
    • US5005089A
    • 1991-04-02
    • US192353
    • 1988-05-10
    • William N. ThanosBruce R. PetersonWilliam G. MoonJoshua LindsayThomas R. Stone
    • William N. ThanosBruce R. PetersonWilliam G. MoonJoshua LindsayThomas R. Stone
    • G11B5/55G11B5/596
    • G11B5/59627G11B5/5556Y10S360/901Y10S360/902Y10S360/903
    • A micro-Winchester disk drive subsystem includes a data block sequencer, cache memory and interface for a host computing machine. The drive includes a base and a plurality of non-removable directly rotated disks forming data storage surfaces. A balanced rotary head transducer actuator is mounted to the base for a plurality of data transducer heads among a multiplicity of concentric data tracks formed on each data storage surface of each of the disks. The track following servo system includes a position encoder coupled between the actuator structure and the base, prerecorded data track centerline information at a radially outermost region and at a radially innermost region of each data surface, and a temperature sensor for sensing temperature of the base at the vicinity of the position encoder. An actuator driver circuit is connected to supply electrical driving current to the actuator structure; and, a single, time divided multi-tasked digital including an analog to digital converter is connected to receive the position information from the position encoder, centerline information from the disk surfaces read by the data transducer and temperature sensed by the temperature sensor during a calibration operation in one phase of its operational cycle, and other phase being devoted to supervision data block handling functions of disk drive data block sequencer cache memory and interface. During track following operations, centerline information is derived from information obtained in the calibrate operation. The temperature sensor is periodically checked and recalibration is carried out when drive temperature changes.
    • 微型温彻斯特磁盘驱动器子系统包括用于主计算机的数据块定序器,高速缓冲存储器和接口。 驱动器包括形成数据存储表面的基座和多个不可拆卸的直接旋转的盘。 平衡的旋转头传感器致动器安装到基座上用于形成在每个盘的每个数据存储表面上的多个同心数据轨道中的多个数据传感器头。 轨道跟随伺服系统包括耦合在致动器结构和基座之间的位置编码器,在每个数据表面的径向最外侧区域和径向最内部区域处的预先记录的数据轨道中心线信息,以及用于感测基座的温度的温度传感器 位置编码器附近。 致动器驱动电路被连接以向致动器结构提供电驱动电流; 并且,连接包括模数转换器的单个时分多任务数字接收来自位置编码器的位置信息,由数据传感器读取的盘表面的中心线信息和在校准期间由温度传感器感测的温度 操作在其运行周期的一个阶段,其他阶段专门用于磁盘驱动器数据块定序器缓存存储器和接口的监控数据块处理功能。 在跟踪跟踪操作期间,从校准操作中获得的信息导出中心线信息。 定期检查温度传感器,驱动温度变化时进行重新校准。