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11. 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。

12. 发明授权

US08462458B1 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：US08462458B1
公开(公告)日：2013-06-11
申请号：US13315201
申请日：2011-12-08
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, devices and systems include, in some implementations, a method including: writing, using a head having a read element and a write element, a band of spiral sets, the band of spiral sets including a first spiral set and a second spiral set different from the first spiral set; writing, using the write element, servo information that includes one or more sets of servo wedges while the read element is servoing on the first spiral set; and servoing the read element on the second spiral set based on one or more determined conditions under which writing the servo information coincides with reading data from the first spiral set.
摘要翻译：在一些实施方式中，方法，装置和系统包括一种方法，包括：使用具有读取元件和写入元件的头部来写入螺旋组的带，所述螺旋组的带包括第一螺旋组和第二螺旋组不同于第一螺旋集; 在所述读取单元在所述第一螺旋组上进行伺服时，使用所述写元件写入包括一组或多组伺服楔的伺服信息; 以及基于写入所述伺服信息与从所述第一螺旋集合读取数据一致的一个或多个确定条件来将所述读取元件在所述第二螺旋组上进行伺服。

13. 发明申请

US20120303873A1 METHOD FOR STORAGE DEVICES TO ACHIEVE LOW WRITE AMPLIFICATION WITH LOW OVER PROVISION 有权
标题翻译：存储设备的方法，用于实现低写扩频功能
公开(公告)号：US20120303873A1
公开(公告)日：2012-11-29
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： G06F12/00
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.
摘要翻译：固态驱动器（SSD）包括SSD控制模块，其被配置为确定对应于根据频率更新存储在与SSD相关联的相应逻辑地址中的数据的频率和形成逻辑地址组的频率，以及配置的存储器控制模块基于组将数据重写到SSD存储区域的块中的物理地址。

14. 发明授权

US07869158B1 Helicoid group switching 有权
标题翻译：螺旋组切换
公开(公告)号：US07869158B1
公开(公告)日：2011-01-11
申请号：US12192931
申请日：2008-08-15
申请人： Man Cheung , Perry Neos , David Rutherford
发明人： Man Cheung , Perry Neos , David Rutherford
IPC分类号： G11B5/596 , G11B21/02 , G11B15/12 , G11B5/09
CPC分类号： G11B5/59633 , G11B5/59661 , G11B5/59666
摘要： A recording medium can include multiple helicoid patterns arranged in multiple helicoid groups, e.g., first and second helicoid groups. Operating a disk drive can include switching between helicoid groups to maintain the alignment of the head with respect to a target track of the rotating recording medium. Enabling a switch can include receiving a waveform produced by a head operated with respect to a rotating recording medium, generating first information from one or more portions of the waveform corresponding to the helicoid patterns of the first helicoid group; generating second information from one or more portions of the waveform corresponding to the helicoid patterns of the second helicoid group; and analyzing the second information with respect to the first information to generate calibration information. The calibration information can compensate for operational differences between using the helicoid patterns of the first helicoid group and the helicoid patterns of the second helicoid group.
摘要翻译：记录介质可以包括布置在多个螺旋组中的多个螺旋图案，例如第一和第二螺旋组。操作磁盘驱动器可以包括在螺旋形组之间切换，以保持磁头相对于旋转记录介质的目标磁道的对准。启用开关可以包括接收由相对于旋转记录介质操作的磁头产生的波形，从对应于第一螺旋组的螺旋图案的波形的一个或多个部分产生第一信息; 从对应于第二螺旋组的螺旋图案的波形的一个或多个部分产生第二信息; 以及分析关于所述第一信息的所述第二信息以生成校准信息。校准信息可以补偿使用第一螺旋组的螺旋形图案和第二螺旋组的螺旋形图案之间的操作差异。

15. 发明授权

US08023216B1 Calibrating servos 有权
标题翻译：校准伺服
公开(公告)号：US08023216B1
公开(公告)日：2011-09-20
申请号：US12192984
申请日：2008-08-15
申请人： Man Cheung , David Rutherford , Jerry Richgels , Perry Neos
发明人： Man Cheung , David Rutherford , Jerry Richgels , Perry Neos
IPC分类号： G11B5/09
CPC分类号： G11B5/59633 , G11B5/59661 , G11B5/59666
摘要： Methods, systems, and apparatus, including computer program products are described for calibrating servos, and in some implementations, calibrating spiral servos for use in self-servo-write SSW processes. In one aspect, a method is provide that includes rotating a machine readable medium, and detecting a spiral on the machine readable medium. Detecting a spiral on the machine readable medium includes detecting magnitudes of the spiral and a timing mark, storing a timestamp from a clock signal that corresponds to the timing mark of the spiral, determining a peak of the spiral from the magnitudes, and locking the clock signal to the peak of the spiral using the timestamp.
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，并且在一些实施方式中，校准用于自伺服写入SSW过程的螺旋伺服。在一个方面，提供了一种方法，其包括旋转机器可读介质，以及检测机器可读介质上的螺旋。在机器可读介质上检测螺旋包括检测螺旋的大小和定时标记，从对应于螺旋的定时标记的时钟信号存储时间戳，从该幅度确定螺旋的峰值，并锁定时钟使用时间戳信号到螺旋峰值。

16. 发明授权

US08422158B1 Calibrating servos 有权
标题翻译：校准伺服
公开(公告)号：US08422158B1
公开(公告)日：2013-04-16
申请号：US13474054
申请日：2012-05-17
申请人： Man Cheung , David Rutherford , Jerry Richgels , Perry Neos
发明人： Man Cheung , David Rutherford , Jerry Richgels , Perry Neos
IPC分类号： G11B5/09
CPC分类号： G11B5/59633 , G11B5/59661 , G11B5/59666
摘要： Apparatus, methods, and systems can be employed for calibrating servos, and in some implementations, spiral servos are calibrated for use in self-servo-write (SSW) processes. In an aspect, an apparatus includes a timing reference detector configured to determine timing reference information from a back electromotive force signal associated with a rotating machine readable medium, and a servo track window period generator configured to determine a relative location of a spiral on the rotating machine readable medium based on the timing reference information.
摘要翻译：可以使用装置，方法和系统来校准伺服，并且在一些实施方式中，螺旋伺服器被校准以用于自伺服写入（SSW）过程。一方面，一种装置包括定时参考检测器，其被配置为从与旋转的机器可读介质相关联的反电动势信号中确定定时参考信息，以及伺服轨道窗口周期发生器，被配置为确定旋转的旋转的螺旋的相对位置基于定时参考信息的机器可读介质。

17. 发明授权

US08184392B1 Calibrating servos 有权
标题翻译：校准伺服
公开(公告)号：US08184392B1
公开(公告)日：2012-05-22
申请号：US13290448
申请日：2011-11-07
申请人： Man Cheung , David Rutherford , Jerry Richgels , Perry Neos
发明人： Man Cheung , David Rutherford , Jerry Richgels , Perry Neos
IPC分类号： G11B5/09
CPC分类号： G11B5/59633 , G11B5/59661 , G11B5/59666
摘要： Methods, systems, and apparatus, including computer program products are described for calibrating servos, and in some implementations, calibrating spiral servos for use in self-servo-write (SSW) processes. In one aspect, a method is provided that includes determining timing reference information on a machine readable medium, locking a clock signal to the timing reference information, detecting a spiral on the machine readable medium, determining a location of the spiral using the clock signal, and calibrating a spiral servo according to the location of the spiral.
摘要翻译：描述了用于校准伺服系统的方法，系统和装置，包括计算机程序产品，并且在一些实施方式中，校准用于自伺服写入（SSW）过程的螺旋伺服。一方面，提供了一种方法，其包括确定机器可读介质上的定时参考信息，将时钟信号锁定到定时参考信息，检测机器可读介质上的螺旋，使用时钟信号确定螺旋的位置，并根据螺旋的位置校准螺旋伺服。

18. 发明授权

US08085492B1 Helicoid group switching 有权
标题翻译：螺旋组切换
公开(公告)号：US08085492B1
公开(公告)日：2011-12-27
申请号：US12972798
申请日：2010-12-20
申请人： Man Cheung , Perry Neos , David Rutherford
发明人： Man Cheung , Perry Neos , David Rutherford
IPC分类号： G11B5/596 , G11B5/09 , G11B15/12 , G11B21/02
CPC分类号： G11B5/59633 , G11B5/59661 , G11B5/59666
摘要： The present disclosure includes systems and techniques relating to magnetic recording devices, such as disk drives. A recording medium of a magnetic recording device can include multiple helicoid patterns arranged in multiple helicoid groups. A described technique includes receiving a waveform produced by a head operated with respect to the medium; determining, based on the waveform, first phase difference(s) corresponding to a first helicoid group; affecting an alignment of the head with respect to the medium based on the first helicoid group by compensating for the first phase difference(s) to maintain the alignment; determining, while compensating for the first phase differences, second phase difference(s) corresponding to a second helicoid group; and affecting, responsive to a switch from the first helicoid group to the second helicoid group, the alignment of the head with respect to the medium by compensating for the second phase difference(s) to maintain the alignment.
摘要翻译：本公开包括与诸如磁盘驱动器之类的磁记录装置有关的系统和技术。磁记录装置的记录介质可以包括以多个螺旋组排列的多个螺旋图案。所描述的技术包括接收由相对于介质操作的头部产生的波形; 基于所述波形确定对应于第一螺旋组的第一相位差; 通过补偿第一相位差来维持对准，影响头部相对于基于第一螺旋组的介质的对准; 在补偿所述第一相位差的同时，确定对应于第二螺旋组的第二相位差; 并且响应于从第一螺旋组到第二螺旋组的切换，通过补偿第二相位差以维持对准来影响磁头相对于介质的对准。

19. 发明授权

US08068304B1 Calibrating servos 有权
标题翻译：校准伺服
公开(公告)号：US08068304B1
公开(公告)日：2011-11-29
申请号：US12192977
申请日：2008-08-15
申请人： Man Cheung , David Rutherford , Jerry Richgels , Perry Neos
发明人： Man Cheung , David Rutherford , Jerry Richgels , Perry Neos
IPC分类号： G11B5/09
CPC分类号： G11B5/59633 , G11B5/59661 , G11B5/59666
摘要： Methods, systems, and apparatus, including computer program products are described for calibrating servos, and in some implementations, calibrating spiral servos for use in self-servo-write (SSW) processes. In one aspect, a method is provided that includes determining timing reference information on a machine readable medium, locking a clock signal to the timing reference information, detecting a spiral on the machine readable medium, determining a location of the spiral using the clock signal, and calibrating a spiral servo according to the location of the spiral.
摘要翻译：描述了用于校准伺服系统的方法，系统和装置，包括计算机程序产品，并且在一些实现中，校准用于自伺服写入（SSW）过程的螺旋伺服。一方面，提供了一种方法，其包括确定机器可读介质上的定时参考信息，将时钟信号锁定到定时参考信息，检测机器可读介质上的螺旋，使用时钟信号确定螺旋的位置，并根据螺旋的位置校准螺旋伺服。

20. 发明授权

US08407407B1 Solid state drive access control system with equalized access timing 有权
标题翻译：具有均衡访问时机的固态硬盘访问控制系统
公开(公告)号：US08407407B1
公开(公告)日：2013-03-26
申请号：US12883430
申请日：2010-09-16
申请人： Jason Adler , Lau Nguyen , Perry Neos
发明人： Jason Adler , Lau Nguyen , Perry Neos
IPC分类号： G06F13/12
CPC分类号： G06F12/0246 , G06F3/0613 , G06F3/0659 , G06F3/0688
摘要： A drive control module of a solid-state drive (SSD) includes a first module that receives host commands from one of a host command buffer and a drive interface of the SSD, converts the host commands to stage commands, and determines whether to store the stage commands in a stage slot of a staging memory or leave the stage slot empty. A second module transfers data between a buffer and a flash memory based on the stage commands. The flash memory comprises flash arrays. A third module detects a first empty stage of one of the flash arrays and based on an empty stage timer value triggers at least one of an end of the first empty stage, a start of an at least partially full stage of the one of the flash arrays, or a start of a second empty stage of the one of the flash arrays.
摘要翻译：固态驱动器（SSD）的驱动器控制模块包括从主机命令缓冲器和SSD的驱动器接口之一接收主机命令的第一模块，将主机命令转换为阶段命令，并且确定是否存储在阶段存储器的阶段槽中的阶段命令或将阶段槽留空。第二个模块基于舞台命令在缓冲器和闪存之间传输数据。闪存包括闪存阵列。第三模块检测闪光阵列之一的第一空白阶段，并且基于空阶段定时器值触发第一空阶段的结束中的至少一个，闪光灯之一的至少部分完整级的开始阵列或闪存阵列之一的第二空阶段的开始。

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