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1. 发明授权

US07944638B1 Method and apparatus for scheduling spiral interrupts for self-servo write 有权
标题翻译：用于调度自伺服写入的螺旋中断的方法和装置
公开(公告)号：US07944638B1
公开(公告)日：2011-05-17
申请号：US12643844
申请日：2009-12-21
申请人： Man Cheung , Perry Neos , Luan Ton-That
发明人： Man Cheung , Perry Neos , Luan Ton-That
IPC分类号： G11B5/09 , G11B20/12
CPC分类号： G11B20/1252 , G11B5/59633 , G11B5/59661 , G11B5/59666 , G11B20/10009 , G11B20/10222 , G11B2020/1282 , G11B2220/2516
摘要： A method for dynamic spiral ISR scheduling determines a dynamic delay with spiral to spiral spacing information of a disk, so as to ensure that the sum of a primary ISR time and a secondary ISR time does not exceed the wedge to wedge time. The ISR time may be scheduled to start after a delay for the sum of a static delay and the dynamic delay from an edge. A system for dynamic spiral ISR scheduling uses a dynamic delay determining unit to determine a dynamic delay, and an ISR scheduling unit to schedule the start of a secondary spiral set ISR based on a sum of the dynamic delay and a static delay.
摘要翻译：一种用于动态螺旋ISR调度的方法确定了磁盘的螺旋到螺旋间隔信息的动态延迟，以确保主ISR时间和辅助ISR时间之和不超过楔形到楔形时间。 ISR时间可以被调度为在静态延迟和来自边缘的动态延迟之和的延迟之后开始。用于动态螺旋ISR调度的系统使用动态延迟确定单元来确定动态延迟，ISR调度单元基于动态延迟和静态延迟的和来调度辅助螺旋集ISR的开始。

2. 发明授权

US08767340B1 Spiral band end detection 有权
标题翻译：螺旋带末端检测
公开(公告)号：US08767340B1
公开(公告)日：2014-07-01
申请号：US13494487
申请日：2012-06-12
申请人： Perry Neos , Luan Ton-That , Man Cheung
发明人： Perry Neos , Luan Ton-That , Man Cheung
IPC分类号： G11B21/02 , G11B5/596 , G11B15/12
CPC分类号： G11B5/59661 , G11B5/5526 , G11B5/5534 , G11B5/5543 , G11B5/596 , G11B5/59638
摘要： Methods, systems and computer program products for detecting an end of a reference spiral band are described. A first portion of servo information may be written on a disk using the reference spiral band. By detecting an end of a reference spiral band, a new reference spiral band may be launched. A read/write head of a hard disk drive may subsequently use the new spiral band to write the remaining portion of the servo information, which aids the writing of data tracks on the disk.
摘要翻译：描述了用于检测参考螺旋带的末端的方法，系统和计算机程序产品。伺服信息的第一部分可以使用参考螺旋带写在盘上。通过检测参考螺旋带的结束，可以启动新的参考螺旋带。硬盘驱动器的读/写头可以随后使用新的螺旋带来写入伺服信息的剩余部分，这有助于将数据轨迹写入盘上。

3. 发明授权

US08681449B1 Calibrating servos 有权
标题翻译：校准伺服
公开(公告)号：US08681449B1
公开(公告)日：2014-03-25
申请号：US13474584
申请日：2012-05-17
申请人： Jason Adler , David Rutherford , Man Cheung , Perry Neos , Luan Ton-That
发明人： Jason Adler , David Rutherford , Man Cheung , Perry Neos , Luan Ton-That
IPC分类号： G11B21/02 , G11B5/596 , G11B5/09
CPC分类号： G11B5/59633 , G11B5/59661 , G11B5/59666 , G11B2020/1281 , G11B2220/2516
摘要： Methods, systems, and apparatus, including computer program products, are described for calibrating servos, and in some implementations for calibrating spiral servos for use in self servo write processes. In one aspect, a method is provided that includes measuring a slope of a spiral written to a machine readable medium, and adjusting a parameter in accordance with the measured slope to calibrate spacing of servo tracks, with respect to variation between a target slope and the measured slope for the spiral, for writing the servo tracks to the machine readable medium using the spiral as a reference and the adjusted parameter to generate a same radial spacing between servo tracks from spirals with different slopes.
摘要翻译：描述了包括计算机程序产品在内的方法，系统和装置，用于校准伺服系统，并且在一些实施例中用于校准用于自伺服写入过程的螺旋伺服。在一个方面，提供了一种方法，其包括测量写入机器可读介质的螺旋线的斜率，并且根据所测量的斜率调整参数以校准伺服轨道的间距，相对于目标斜率和用于螺旋的测量斜率，用于使用螺旋作为参考将伺服轨迹写入机器可读介质，并且调整的参数在具有不同斜率的螺旋之间产生在伺服轨道之间相同的径向间隔。

4. 发明授权

US07773335B1 Calibrating servos 有权
标题翻译：校准伺服
公开(公告)号：US07773335B1
公开(公告)日：2010-08-10
申请号：US12192981
申请日：2008-08-15
申请人： Jason Adler , David Rutherford , Man Cheung , Perry Neos , Luan Ton-That
发明人： Jason Adler , David Rutherford , Man Cheung , Perry Neos , Luan Ton-That
IPC分类号： G11B21/02 , G11B5/596 , G11B5/09
CPC分类号： G11B5/59633 , G11B5/59661 , G11B5/59666 , G11B2020/1281 , G11B2220/2516
摘要： Methods, systems, and apparatus, including computer program products, are described for calibrating servos, and in some implementations for calibrating spiral servos for use in self-servo-write processes. In one aspect, a method is provided that includes determining a measured slope of a spiral, and calibrating radial spacing between servo tracks using the measured slope and a target slope.
摘要翻译：描述了包括计算机程序产品在内的方法，系统和装置，用于校准伺服系统，并且在一些实施例中用于校准用于自伺服写入过程的螺旋伺服。在一个方面，提供了一种方法，其包括确定螺旋的测量斜率，以及使用所测量的斜率和目标斜率校准伺服轨道之间的径向间距。

5. 发明授权

US07764457B1 Spiral band end detection 有权
标题翻译：螺旋带末端检测
公开(公告)号：US07764457B1
公开(公告)日：2010-07-27
申请号：US12188118
申请日：2008-08-07
申请人： Perry Neos , Luan Ton-That , Man Cheung
发明人： Perry Neos , Luan Ton-That , Man Cheung
IPC分类号： G11B21/02 , G11B5/596
CPC分类号： G11B5/59661 , G11B5/5526 , G11B5/5534 , G11B5/5543 , G11B5/596 , G11B5/59638
摘要： Methods, systems and computer program products for detecting an end of a reference spiral band are described. A first portion of servo information may be written on a disk using the reference spiral band. By detecting an end of a reference spiral band, a new reference spiral band may be launched. A read/write head of a hard disk drive may subsequently use the new spiral band to write the remaining portion of the servo information, which aids the writing of data tracks on the disk.
摘要翻译：描述了用于检测参考螺旋带的末端的方法，系统和计算机程序产品。伺服信息的第一部分可以使用参考螺旋带写在盘上。通过检测参考螺旋带的结束，可以启动新的参考螺旋带。硬盘驱动器的读/写头可以随后使用新的螺旋带来写入伺服信息的剩余部分，这有助于将数据轨迹写入盘上。

6. 发明授权

US08208216B1 Spiral band end detection 有权
标题翻译：螺旋带末端检测
公开(公告)号：US08208216B1
公开(公告)日：2012-06-26
申请号：US12834820
申请日：2010-07-12
申请人： Perry Neos , Luan Ton-That , Man Cheung
发明人： Perry Neos , Luan Ton-That , Man Cheung
IPC分类号： G11B21/02 , G11B5/596
CPC分类号： G11B5/59661 , G11B5/5526 , G11B5/5534 , G11B5/5543 , G11B5/596 , G11B5/59638
摘要： Methods, systems and computer program products for detecting an end of a reference spiral band are described. In some implementations, a band of spirals and servo information are written onto a storage medium. One or more characteristics associated with the band of spirals are determined. Then, one or more spirals of the band of spirals are identified as reference spirals based on the one or more determined characteristics. The writing of at least one of the band of spirals and the servo information is terminated upon identifying the one or more reference spirals.
摘要翻译：描述了用于检测参考螺旋带的末端的方法，系统和计算机程序产品。在一些实现中，螺旋和伺服信息带被写入存储介质。确定与螺旋带相关联的一个或多个特性。然后，基于一个或多个确定的特征将螺旋带的一个或多个螺旋线识别为参考螺旋。在识别一个或多个参考螺旋线时终止对螺旋带和伺服信息中的至少一个的写入。

7. 发明授权

US08194343B1 Calibrating servos 有权
标题翻译：校准伺服
公开(公告)号：US08194343B1
公开(公告)日：2012-06-05
申请号：US12838016
申请日：2010-07-16
申请人： Jason Adler , David Rutherford , Man Cheung , Perry Neos , Luan Ton-That
发明人： Jason Adler , David Rutherford , Man Cheung , Perry Neos , Luan Ton-That
IPC分类号： G11B21/02 , G11B5/596 , G11B5/09
CPC分类号： G11B5/59633 , G11B5/59661 , G11B5/59666 , G11B2020/1281 , G11B2220/2516
摘要： Systems, methods, and apparatuses, including computer program products, are described for, in at least one implementation, determining a measured slope of a spiral, calibrating radial spacing between servo tracks according to a relationship between a target slope and the measured slope, wherein an amount of calibration for the radial spacing varies directly with the relationship between the target slope and the measured slope, and generating servo tracks according to the calibrated radial spacing.
摘要翻译：在至少一个实施方案中，描述了包括计算机程序产品的系统，方法和装置，其根据目标斜率和测量的斜率之间的关系确定螺旋的测量斜率，校准伺服轨道之间的径向间距，其中用于径向间隔的校准量随目标斜率和测量斜率之间的关系直接变化，并根据校准的径向间距产生伺服轨迹。

8. 发明授权

US09678676B2 Method for storage devices to achieve low write amplification with low over provision 有权
公开(公告)号：US09678676B2
公开(公告)日：2017-06-13
申请号：US13461899
申请日：2012-05-02
申请人： Lau Nguyen , Perry Neos , Luan Ton-That
发明人： Lau Nguyen , Perry Neos , Luan Ton-That
IPC分类号： G06F12/02 , G06F3/06
CPC分类号： G06F3/0616 , G06F3/0652 , G06F3/0679 , G06F12/0246 , G06F2212/7209
摘要： A solid state drive (SSD) includes an SSD control module configured to determine frequencies corresponding to how often data stored in respective logical addresses associated with the SSD is updated and form groups of the logical addresses according to the frequencies, and a memory control module configured to rewrite the data to physical addresses in blocks of an SSD storage region based on the groups.

9. 发明授权

US08886870B2 Memory access table saving and restoring system and methods 有权
标题翻译：内存访问表保存和恢复系统和方法
公开(公告)号：US08886870B2
公开(公告)日：2014-11-11
申请号：US13110517
申请日：2011-05-18
申请人： Jason Adler , Perry Neos , Luan Ton-That , Gwoyuh Hwu
发明人： Jason Adler , Perry Neos , Luan Ton-That , Gwoyuh Hwu
IPC分类号： G06F12/00 , G06F12/02
CPC分类号： G06F11/1435 , G06F11/1451 , G06F12/0246 , G06F2201/84 , G11C14/0018 , G11C14/0063
摘要： A system includes a first memory configured to store a first lookup table (LUT) with first metadata. A second memory is configured to store a second LUT with second metadata, wherein the first metadata includes a first mapping between logical addresses and physical addresses. The second metadata includes a second mapping between the logical addresses and the physical addresses. A control module is configured to update the first metadata. The control module is configured to update segments of the second metadata based on the first metadata at respective predetermined times. Each of the segments refers to a predetermined number of entries of the second LUT.
摘要翻译：系统包括被配置为存储具有第一元数据的第一查找表（LUT）的第一存储器。第二存储器被配置为存储具有第二元数据的第二LUT，其中第一元数据包括逻辑地址和物理地址之间的第一映射。第二元数据包括逻辑地址和物理地址之间的第二映射。控制模块被配置为更新第一元数据。控制模块被配置为在各个预定时间基于第一元数据更新第二元数据的段。每个段涉及第二LUT的预定数量的条目。

10. 发明授权

US08077422B1 Writing spirals based on servo tracks of a different sample rate 有权
标题翻译：基于不同采样率的伺服轨迹写螺旋
公开(公告)号：US08077422B1
公开(公告)日：2011-12-13
申请号：US12192971
申请日：2008-08-15
申请人： Luan Ton-That , Perry Neos
发明人： Luan Ton-That , Perry Neos
IPC分类号： G11B21/02 , G11B5/596
CPC分类号： G11B5/59661 , G11B5/59627
摘要： Methods, systems and computer program products for launching one or more reference spiral sets using different tracks are described. In some implementations, a method can be used that includes writing a first spiral set starting at a first track and determining a radial offset. Then a second track is determined based on the radial offset. A second spiral set is also written starting at the second track. A spiral set-to-wedge ratio is determined based on a number of spiral sets to be written. Subsequently, servo information can be written using the first spiral set and the second spiral set. The servo information can include one or more sets of servo wedges, which can be written based on the spiral set-to-wedge ratio.
摘要翻译：描述了使用不同轨道启动一个或多个参考螺旋组的方法，系统和计算机程序产品。在一些实施方式中，可以使用包括从第一轨迹开始写入第一螺旋组并确定径向偏移的方法。然后基于径向偏移来确定第二轨迹。第二个螺旋集也从第二个轨道开始写入。基于要写入的螺旋组的数量来确定螺旋设置到楔形比。随后，可以使用第一螺旋组和第二螺旋组来写入伺服信息。伺服信息可以包括一组或多组伺服楔，其可以基于螺旋设置到楔形比来写入。

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