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1. 发明授权

US08879190B1 Method and apparatus for initial self-servo writing 有权
标题翻译：初始自伺服写入的方法和装置
公开(公告)号：US08879190B1
公开(公告)日：2014-11-04
申请号：US13554642
申请日：2012-07-20
申请人： Supaket Katchmart , David Liaw , Jerome F. Richgels , Henri Sutioso
发明人： Supaket Katchmart , David Liaw , Jerome F. Richgels , Henri Sutioso
IPC分类号： G11B5/02
CPC分类号： G11B5/59666 , G11B20/10222
摘要： Embodiments of the present disclosure provide a method of self-servo writing, the method comprising actions of positionally tracking a selected timing track of a data storage disk, wherein the selected timing track has one or more timing segments; synchronizing an angular position signal to rotation of the data storage disk based on at least one of the one or more timing segments of the selected timing track; specifying servo sector positions relative to the synchronized angular position signal; writing servo sectors to the data storage disk at the specified servo sector positions relative to the synchronized angular position signal; detecting one or more positional errors in timing segments of a next timing track of the data storage disk based at least in part on the synchronized angular position signal; and accounting for the detected one or more positional errors in writing subsequent servo tracks. Other embodiments are also described.
摘要翻译：本公开的实施例提供了一种自伺服写入的方法，该方法包括对数据存储盘的选定的定时轨道进行位置跟踪的动作，其中所选择的定时轨道具有一个或多个定时段; 基于所选定时轨道的一个或多个定时段中的至少一个，将角位置信号与数据存储盘的旋转同步; 指定相对于同步角位置信号的伺服扇区位置; 在相对于同步角位置信号的指定伺服扇区位置将伺服扇区写入数据存储盘; 至少部分地基于所述同步角位置信号来检测所述数据存储盘的下一定时轨道的定时段中的一个或多个位置误差; 并且考虑在写入后续伺服磁道时检测到的一个或多个位置误差。还描述了其它实施例。

2. 发明授权

US08693131B1 Writing and reading user data using servo spirals 失效
标题翻译：使用伺服螺旋写入和读取用户数据
公开(公告)号：US08693131B1
公开(公告)日：2014-04-08
申请号：US13550309
申请日：2012-07-16
申请人： Jerome F. Richgels , Henri Sutioso , Allen Cheng Wu Hu , Scott A. Hughes
发明人： Jerome F. Richgels , Henri Sutioso , Allen Cheng Wu Hu , Scott A. Hughes
IPC分类号： G11B21/02
CPC分类号： G11B5/59661 , G11B5/59688
摘要： A system includes a self-servo-write (SSW) module, a read module, and a write module. The SSW module writes servo spirals on a magnetic medium of a hard disk drive (HDD) via a write head of the HDD. The read module reads the servo spirals via a read head of the HDD and generates read signals. The write module writes non-servo data on the magnetic medium via the write head based on the read signals before the SSW module writes servo wedges on the magnetic medium.
摘要翻译：系统包括自伺服写（SSW）模块，读模块和写模块。 SSW模块通过HDD的写头将伺服螺旋写入硬盘驱动器（HDD）的磁介质上。读取模块通过HDD的读取头读取伺服螺旋并产生读取信号。写模块基于SSW模块在磁介质上写入伺服楔之前的读信号，经由写头将非伺服数据写入磁介质。

3. 发明授权

US08223452B1 Writing and reading user data using servo spirals 有权
标题翻译：使用伺服螺旋写入和读取用户数据
公开(公告)号：US08223452B1
公开(公告)日：2012-07-17
申请号：US12557590
申请日：2009-09-11
申请人： Jerome F. Richgels , Henri Sutioso , Allen Cheng Wu Hu , Scott A. Hughes
发明人： Jerome F. Richgels , Henri Sutioso , Allen Cheng Wu Hu , Scott A. Hughes
IPC分类号： G11B21/02
CPC分类号： G11B5/59661 , G11B5/59688
摘要： A system includes a self-servo-write (SSW) module, a read module, and a write module. The SSW module writes servo spirals on a magnetic medium of a hard disk drive (HDD) via a write head of the HDD. The read module reads the servo spirals via a read head of the HDD and generates read signals. The write module writes non-servo data on the magnetic medium via the write head based on the read signals before the SSW module writes servo wedges on the magnetic medium.
摘要翻译：系统包括自伺服写（SSW）模块，读模块和写模块。 SSW模块通过HDD的写头将伺服螺旋写入硬盘驱动器（HDD）的磁介质上。读取模块通过HDD的读取头读取伺服螺旋并产生读取信号。写模块基于SSW模块在磁介质上写入伺服楔之前的读信号，经由写头将非伺服数据写入磁介质。

4. 发明授权

US5050146A Track seek recovery system and method 失效
标题翻译：追踪恢复系统和方法
公开(公告)号：US5050146A
公开(公告)日：1991-09-17
申请号：US387910
申请日：1989-07-31
申请人： Jerome F. Richgels , John C. Kuklewicz
发明人： Jerome F. Richgels , John C. Kuklewicz
IPC分类号： G11B7/085 , G11B21/08
CPC分类号： G11B21/083 , G11B7/08529
摘要： At the conclusion of a track seek operation, handoff to track following servo control is delayed for a short time period during which the drive microprocessor determines if the head has failed to stop at the target track by sensing the occurrence of a predetermined number of track crossing pulses, the detection of which causes iterative generation and application of braking current pulses to the head actuator motor. The amplitude and duration of each braking current pulse is chosen to cause forward motion of the head to be retarded to a predetermined percent of its pre-existing velocity. The microprocessor routine includes provision for iteratively determining when the head has slowed to a velocity which allows the track following servo to acquire control of the head. Once stopped on a track, a short seek is executed to return the head to the desired target track. Provision is also made in the microprocessor routine to iteratively determine direction of head movement to complement the polarity of the braking current pulse in the event a previous pulse has reversed the direction of head movement thus assuring that the braking current pulses always result in retarding forward motion of the head.
摘要翻译：轨迹搜索操作结束时，追踪跟随伺服控制的越区切换被延迟很短的时间段，在此期间，驱动微处理器通过感测预定数目的轨道交叉的出现来确定磁头是否已经不能停在目标轨道脉冲，其检测导致制动电流脉冲的迭代产生和应用到头致动器电动机。选择每个制动电流脉冲的幅度和持续时间以使磁头的向前运动被延迟到其预先存在的速度的预定百分比。微处理器程序包括用于迭代地确定头部何时已经变慢到使跟踪伺服跟踪获得头部控制的速度的设置。一旦停在轨道上，就执行一个短暂的寻找，使头部返回到所需的目标轨道。在微处理器程序中还进行了规定，以反复确定磁头运动的方向以补偿制动电流脉冲的极性，前提是脉冲已经反转磁头运动的方向，从而确保制动电流脉冲总是导致向前运动的延迟的头。

5. 发明授权

US5033039A Positioning system for flexure mounted read/write head 失效
标题翻译：挠性安装读/写头定位系统
公开(公告)号：US5033039A
公开(公告)日：1991-07-16
申请号：US387914
申请日：1989-07-31
申请人： Jerome F. Richgels
发明人： Jerome F. Richgels
IPC分类号： G11B21/08
CPC分类号： G11B21/085
摘要： A random access information storage disk drive system of the optical or magneto-optical type with the read/write head mounted between parallel flexures for suspension in a linear actuator motor. Dynamic spring force compensation is provided incrementally as the head is moved radially inward and outward of the at-rest position of the flexures to compensation for the increasing restoring force exerted by the flexures as the head is moved towards the extremes of its tracking path.
摘要翻译：一种具有读/写头的光学或磁光型的随机存取信息存储盘驱动系统，其安装在平行弯曲之间，用于悬挂在线性致动器马达中。动态弹簧力补偿被递增地提供，因为磁头沿挠曲件的静止位置的径向向内和向外移动，以补偿当磁头向其跟踪路径的极端移动时由挠曲件施加的增加的恢复力。

6. 发明授权

US4972350A Position mode track seek servo for high capacity disk drive system 失效
标题翻译：高位磁盘驱动系统的位置模式追踪伺服
公开(公告)号：US4972350A
公开(公告)日：1990-11-20
申请号：US358921
申请日：1989-05-26
申请人： Ingolf Sander , Jerome F. Richgels , John C. Kuklewicz
发明人： Ingolf Sander , Jerome F. Richgels , John C. Kuklewicz
IPC分类号： G11B7/085 , G11B21/08
CPC分类号： G11B21/085 , G11B7/08517
摘要： During the arrival phase of long seeks, e.g. the last six tracks of a seek, and during the entirety of relatively short seeks, e.g. seeks of less than 256 tracks, position mode servo control is employed by locking an actual tracking error feedback signal to a microprocessor-synthesized reference tracking error signal. The position mode servo feedback loop employs a parallel combination of a synchronous demodulator and a phase-frequency detector to achieve good locking performance over the entire frequency spectrum of the synthesized reference tracking error signal.
摘要翻译：在长期寻求的到达阶段，例如搜索的最后六条轨道，以及整个相对较短的搜索期间。通过将实际的跟踪误差反馈信号锁定到微处理器合成的基准跟踪误差信号上，采用位置模式伺服控制。位置模式伺服反馈回路采用同步解调器和相位频率检测器的并联组合，在合成参考跟踪误差信号的整个频谱上实现良好的锁定性能。

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