公开(公告)号：WO1992007354A1

公开(公告)日：1992-04-30

申请号：PCT/US1991007104

申请日：1991-09-27

Applicant: SERVO TRACK WRITER CORPORATION

Inventor： SERVO TRACK WRITER CORPORATION ,  MICHELSON, Gajus ,  VALLIANT, Willian, W. ,  LEWIS, Martyn, A. ,  HAZEL, Robert, Lawrence

IPC: G11B05/596

CPC classification number: G11B27/34 ,  G11B21/083 ,  G11B27/36 ,  G11B33/10

Abstract: A system and method for controlling and analyzing data storage systems, and more particularly, to systems and methods for controlling and analizing performance and physical attributes of a sealed disk drive unit using an externally accessible but internally integral positioning system. A disk drive having a sealed housing utilizes a reflective planar mirror on the rotary actuator controlling the head drive assembly. A narrow beam directed through a window on the side wall of the housing onto the mirror is reflected off at angle dependent on the actuator position to a beam sensitive detector. A translator system driven by a positioner disposed at a distance from the rotary actuator axis which is substantially greater than the distance between the actuator axis and the head assembly, is used to vary the relationship between the directed and reflected beams. This system incorporates the rotary actuator in a closed loop servo that positions the actuator precisely at different locations relative to the recording medium, so that the data may be written and analyzed at off-track track position increments. The invention further provides, at an early or later manufacturing stage, means for calculating bias torque and friction without the need for prerecorded embedded servo information.

Abstract translation: 一种用于控制和分析数据存储系统的系统和方法，更具体地说，涉及使用外部可访问但内部整合的定位系统来控制和分析密封盘驱动单元的性能和物理属性的系统和方法。 具有密封壳体的盘驱动器利用控制头驱动组件的旋转致动器上的反射平面镜。 通过壳体侧壁上的窗口引导到镜子上的窄光束以取决于致动器位置的角度被反射到光束敏感探测器。 由定位器驱动的转换器系统被用于改变定向反射光束与反射光束之间的关系，该定位器设置在远离旋转致动器轴线的位置，其大致大于致动器轴线和头部组件之间的距离。 该系统将旋转致动器结合在闭环伺服中，其将致动器精确地定位在相对于记录介质的不同位置处，使得数据可以在离轨轨道位置增量处被写入和分析。 本发明还在早期或后期的制造阶段提供用于计算偏置扭矩和摩擦而不需要预先记录的嵌入式伺服信息的装置。

公开(公告)号：WO1992007355A1

公开(公告)日：1992-04-30

申请号：PCT/US1991007533

申请日：1991-10-11

Applicant: SERVO TRACK WRITER CORPORATION

Inventor： SERVO TRACK WRITER CORPORATION ,  LEWIS, Martyn, A.

IPC: G11B05/596

CPC classification number: G11B5/59655 ,  G11B20/1252 ,  G11B27/3027 ,  G11B2005/0013 ,  G11B2220/20

Abstract: A head records a track (e.g. a servo track) in a memory member outside of a clean room without using reference indices. In each of a plurality of cyclical movements (e.g. revolutions), signals (e.g. servo signals) are recorded in the track in an individual number of frames. Thereafter, the distance of the unrecorded portion of the track is determined. In the next cyclical movement, the head records signals in an individual number of frames contiguous to the frames previously recorded, in a track distance dependent upon such individual number relative to the number of frames still unrecorded and upon the distance determined for the unrecorded track portion. In a last cyclical movement, the head records a single frame in a particular spatial relationship with the first and last frames. In a specific embodiment, 2 frames may be recorded in the K cyclical movement. Additional signals may thereafter be recorded by the head in tracks in a single cyclical movement. In another embodiment, each individual number of frames continue to be recorded in the first track in each cyclical movement until the frames occupy a distance, within particular limits, dependent upon the unrecorded length of the track and upon the individual number of frames relative to the number of frames still unrecorded. In a further embodiment, sectors and data sectors following the sectors are recorded with signals in progressive cyclical movements in a manner similar to the recording of the sectors in such revolutions in the first embodiment.

Abstract translation: 头部在洁净室外面的记忆体中记录轨迹（例如伺服轨迹），而不使用参考指标。 在多个循环运动（例如转数）中的每一个中，信号（例如伺服信号）以单个帧数记录在轨道中。 此后，确定轨道的未记录部分的距离。 在下一个周期性运动中，磁头记录与先前记录的帧相邻的单独数量的帧中的信号，该距离取决于相对于仍未被记录的帧的数目的这样的个数，以及根据未记录的轨道部分确定的距离 。 在最后的循环运动中，头记录与第一帧和最后一帧具有特定空间关系的单个帧。 在具体实施例中，可以在K周期运动中记录2