System and method for state space control of seek acoustics
    1.
    发明申请
    System and method for state space control of seek acoustics 审中-公开
    寻求声学状态空间控制的系统和方法

    公开(公告)号:US20070156396A1

    公开(公告)日:2007-07-05

    申请号:US11323782

    申请日:2005-12-30

    Inventor: Richard Ehrlich

    CPC classification number: G11B19/20 G11B5/5521

    Abstract: The embodiments of the present invention establish a sound production model of the storage drive and/or the host in which it is embedded, wherein the model represents the correlation between the current excitation to the storage drive and the acoustic response of the storage drive and/or the host produces. By monitoring and modeling the acoustic response in real time, the invention is operable to optimize/change the sound production of the storage drive and/or the host by tuning a plurality of parameters of the model and the storage drive controller. This description is not intended to be a complete description of, or limit the scope of, the invention. Other features, aspects, and objects of the invention can be obtained from a review of the specification, the figures, and the claims.

    Abstract translation: 本发明的实施例建立了存储驱动器和/或嵌入其中的主机的声音产生模型,其中该模型表示当前对存储驱动器的激励与存储驱动器的声学响应之间的相关性和/ 或主机产生。 通过实时监测和建模声响应,本发明可操作以通过调整模型和存储驱动控制器的多个参数来优化/改变存储驱动器和/或主机的声音产生。 本说明书不是对本发明的完整描述或限制本发明的范围。 本发明的其它特征,方面和目的可以通过对说明书,附图和权利要求的评述来获得。

    Systems using extended servo patterns with variable multi-pass servowriting and self-servowriting
    3.
    发明申请
    Systems using extended servo patterns with variable multi-pass servowriting and self-servowriting 有权
    使用具有可变多通道伺服驱动和自伺服驱动的扩展伺服模式的系统

    公开(公告)号:US20050237656A1

    公开(公告)日:2005-10-27

    申请号:US10818445

    申请日:2004-04-05

    Inventor: Richard Ehrlich

    CPC classification number: G11B5/59633 G11B5/59666

    Abstract: The amount of position error written into a servo burst pattern can be reduced by using additional media revolutions to write the pattern. Where the edges of two servo bursts are used to define a position on the media, trimming the first burst and writing the second burst on separate revolutions of the media will result in a different amount of position error being written into each burst. The end result will be a reduction in the overall error in position information. In order to further reduce the position error given by a burst pair, each burst also can be trimmed and/or written in multiple passes. Additional bursts can also be written, such as for each data track centerline. The overall error in position should decrease as the number of passes used to write a burst pair increases. Also, additional bursts can be written in separate passes in order to further reduce position error while avoiding coherence concerns. This description is not intended to be a complete description of, or limit the scope of, the invention. Other features, aspects, and objects of the invention can be obtained from a review of the specification, the figures, and the claims.

    Abstract translation: 通过使用额外的介质转数来写入图案,可以减少写入伺服突发图案的位置误差量。 在两个伺服脉冲串的边缘用于定义介质上的位置的情况下,修剪第一个脉冲串并将第二个脉冲串写入介质的分开的转数将导致不同量的位置误差被写入每个脉冲串。 最终结果将是减少位置信息的总体错误。 为了进一步减少由突发对给出的位置误差,每个突发也可以被多次修剪和/或写入。 也可以写入附加的脉冲串,例如对于每个数据轨道中心线。 随着用于写入突发对的通过次数增加,位置的总体误差将减小。 而且,为了进一步减少位置误差同时避免一致性问题,可以单独传递附加的脉冲串。 本说明书不是对本发明的完整描述或限制本发明的范围。 本发明的其它特征,方面和目的可以通过对说明书,附图和权利要求的评述来获得。

    Methods for variable multi-pass servowriting and self-servowriting
    4.
    发明申请
    Methods for variable multi-pass servowriting and self-servowriting 有权
    可变多路伺服驱动和自伺服驱动的方法

    公开(公告)号:US20050237654A1

    公开(公告)日:2005-10-27

    申请号:US10818177

    申请日:2004-04-05

    Inventor: Richard Ehrlich

    CPC classification number: G11B5/59633 G11B21/106

    Abstract: The amount of position error written into a servo burst pattern can be reduced by using additional media revolutions to write the pattern. Where the edges of two servo bursts are used to define a position on the media, trimming the first burst and writing the second burst on separate revolutions will result in a different amount of position error being written into each burst. The end result will be a reduction in the overall error in position information. In order to further reduce the position error given by a burst pair, each burst also can be trimmed and/or written in multiple passes. This description is not intended to be a complete description of, or limit the scope of, the invention. Other features, aspects, and objects of the invention can be obtained from a review of the specification, the figures, and the claims.

    Abstract translation: 通过使用额外的介质转数来写入图案,可以减少写入伺服突发图案的位置误差量。 在两个伺服脉冲串的边缘用于限定介质上的位置的情况下,修整第一个脉冲串并以不同的转数写入第二个脉冲串将导致不同量的位置误差被写入每个脉冲串。 最终结果将是减少位置信息的总体错误。 为了进一步减少由突发对给出的位置误差,每个突发也可以被多次修剪和/或写入。 本说明书不是对本发明的完整描述或限制本发明的范围。 本发明的其它特征,方面和目的可以通过对说明书,附图和权利要求的评述来获得。

    Systems and methods for conditional servowriting
    5.
    发明申请
    Systems and methods for conditional servowriting 失效
    有条件的伺服驱动系统和方法

    公开(公告)号:US20050141124A1

    公开(公告)日:2005-06-30

    申请号:US11013075

    申请日:2004-12-15

    CPC classification number: G11B5/59633

    Abstract: Embodiments of the present invention determine the offset of a first burst of a burst pair from a centerline. This can be used to determine the desired offset position for a second burst of the burst pair. The target signal to provided the data storage unit for writing the second burst can take into account the transfer function of the controller and the physical plant so as to more accurately write at the desired offset position.

    Abstract translation: 本发明的实施例确定了来自中心线的突发对的第一突发的偏移。 这可以用于确定突发对的第二突发的期望的偏移位置。 提供用于写入第二突发的数据存储单元的目标信号可以考虑控制器和物理设备的传送功能,以便更准确地在期望的偏移位置写入。

    Systems for searching for SAM patterns at multiple nominal frequencies
    6.
    发明申请
    Systems for searching for SAM patterns at multiple nominal frequencies 有权
    用于以多个标称频率搜索SAM模式的系统

    公开(公告)号:US20050013031A1

    公开(公告)日:2005-01-20

    申请号:US10621048

    申请日:2003-07-16

    Inventor: Richard Ehrlich

    Abstract: Systems are provided for improving servo-demodulation robustness, especially when used with a disk having zone bit recorded servo wedges. The systems include a first servo demodulator adapted to search for a servo address mark (SAM) pattern, within a servo wedge, at a first nominal frequency useful for searching for the SAM pattern if the servo wedge is within a first zone. The systems also include a second servo demodulator adapted to search for the SAM pattern, within the same servo wedge, at a second nominal frequency useful for searching for the SAM pattern if the servo wedge is within the second zone. A microprocessor can then determine which of the first and second zones a head is reading, based at least in part on which of the first and second demodulators detects the SAM pattern.

    Abstract translation: 提供了用于提高伺服解调鲁棒性的系统,特别是当与具有带位记录伺服楔的盘一起使用时。 该系统包括第一伺服解调器,其适于在伺服楔形件内搜索用于在伺服楔形件在第一区域内的情况下用于搜索SAM模式的第一标称频率处的伺服地址标记(SAM)模式。 所述系统还包括第二伺服解调器,其适于在相同的伺服楔形件内搜索用于搜索SAM模式的第二标称频率处的SAM模式,如果伺服楔块在第二区域内。 至少部分地基于第一和第二解调器中的哪一个检测到SAM模式,微处理器可以确定磁头正在读取哪个第一和第二区域。

    Systems and methods for multipass servowriting with a null burst pattern
    7.
    发明申请
    Systems and methods for multipass servowriting with a null burst pattern 失效
    具有零脉冲串模式的多通道伺服驱动的系统和方法

    公开(公告)号:US20060215306A1

    公开(公告)日:2006-09-28

    申请号:US11090608

    申请日:2005-03-25

    CPC classification number: G11B5/59655

    Abstract: Embodiments of the present invention enables the trimming and writing of servo bursts in a null burst servo pattern as multiple portions in multiple passes while still demodulating each of the servo bursts as a single burst to obtain PES. Alternatively, the servo bursts can be trimmed and written using different currents in different passes respectively so that a gap can be created in the radial direction between the servo bursts. This description is not intended to be a complete description of, or limit the scope of, the invention. Other features, aspects, and objects of the invention can be obtained from a review of the specification, the figures, and the claims.

    Abstract translation: 本发明的实施例能够将零脉冲串伺服模式中的伺服脉冲串的修整和写入作为多遍的多个部分,同时将每个伺服脉冲串解调为单个脉冲串以获得PES。 或者,可以分别使用不同电流中的不同电流来修剪和写入伺服脉冲串,使得可以在伺服脉冲串之间的径向上产生间隙。 本说明书不是对本发明的完整描述或限制本发明的范围。 本发明的其它特征,方面和目的可以通过对说明书,附图和权利要求的评述来获得。

    Systems and methods for two-step self-servowriting using per-head final pattern writing
    8.
    发明申请
    Systems and methods for two-step self-servowriting using per-head final pattern writing 有权
    使用每头最终模式写作的两步自伺服系统和方法

    公开(公告)号:US20060007583A1

    公开(公告)日:2006-01-12

    申请号:US11003036

    申请日:2004-12-03

    Inventor: Richard Ehrlich

    CPC classification number: G11B5/59633

    Abstract: A two-step self-servowriting process first writes an intermediate pattern based on a reference pattern, and then writes a final pattern based on the intermediate pattern, wherein the reference pattern can be a printed media pattern. Such an approach can be utilized to reduce the noise/runout, eliminate timing eccentricity, and increase the sample rate of the final pattern. In addition, a disk drive containing multiple rotatable disks can perform two-step self servowriting using either a per-head self-servowriting process to further improve written-in runout. In such a process, intermediate servo patterns can be written via each head in the drive, and the final servo patterns can be written and/or re-written via each head either individually. This description is not intended to be a complete description of, or limit the scope of, the invention. Other features, aspects, and objects of the invention can be obtained from a review of the specification, the figures, and the claims.

    Abstract translation: 两步自伺服过程首先基于参考模式写入中间模式,然后基于中间模式写入最终模式,其中参考模式可以是打印的媒体模式。 可以利用这种方法来减少噪声/跳动,消除定时偏心,并且增加最终图案的采样率。 此外,包含多个可旋转磁盘的磁盘驱动器可以使用每头自伺服驱动过程执行两步自伺服驱动,以进一步提高写入跳动。 在这种过程中,可以通过驱动器中的每个头部写入中间伺服模式,并且可以单独地通过每个头部来写入和/或重写最终的伺服模式。 本说明书不是对本发明的完整描述或限制本发明的范围。 本发明的其它特征,方面和目的可以通过对说明书,附图和权利要求的评述来获得。

    Methods for selective multi-pass servowriting and self-servowriting
    9.
    发明申请
    Methods for selective multi-pass servowriting and self-servowriting 有权
    选择性多通道伺服驱动和自伺服方式

    公开(公告)号:US20050237658A1

    公开(公告)日:2005-10-27

    申请号:US10818472

    申请日:2004-04-05

    Inventor: Richard Ehrlich

    CPC classification number: G11B5/59633 G11B21/106

    Abstract: The amount of position error written into a servo burst pattern can be reduced by using additional media revolutions to write the pattern. Where the edges of two servo bursts are used to define a position on the media, trimming the first burst and writing the second burst on separate revolutions will result in a different amount of position error being written into each burst. The end result will be a reduction in the overall error in position information. In order to further reduce the position error given by a burst pair, each burst also can be trimmed and/or written in multiple passes. This description is not intended to be a complete description of, or limit the scope of, the invention. Other features, aspects, and objects of the invention can be obtained from a review of the specification, the figures, and the claims.

    Abstract translation: 通过使用额外的介质转数来写入图案,可以减少写入伺服突发图案的位置误差量。 在两个伺服脉冲串的边缘用于限定介质上的位置的情况下,修整第一个脉冲串并以不同的转数写入第二个脉冲串将导致不同量的位置误差被写入每个脉冲串。 最终结果将是减少位置信息的总体错误。 为了进一步减少由突发对给出的位置误差,每个突发也可以被多次修剪和/或写入。 本说明书不是对本发明的完整描述或限制本发明的范围。 本发明的其它特征,方面和目的可以通过对说明书,附图和权利要求的评述来获得。

    Methods using extended servo patterns with variable multi-pass servowriting and self-servowriting
    10.
    发明申请
    Methods using extended servo patterns with variable multi-pass servowriting and self-servowriting 失效
    使用具有可变多通道伺服驱动和自伺服驱动的扩展伺服模式的方法

    公开(公告)号:US20050237655A1

    公开(公告)日:2005-10-27

    申请号:US10818179

    申请日:2004-04-05

    Inventor: Richard Ehrlich

    CPC classification number: G11B5/59633 G11B5/59666

    Abstract: The amount of position error written into a servo burst pattern can be reduced by using additional media revolutions to write the pattern. Where the edges of two servo bursts are used to define a position on the media, trimming the first burst and writing the second burst on separate revolutions will result in a different amount of position error being written into each burst. The end result will be a reduction in the overall error in position information. In order to further reduce the position error given by a burst pair, each burst also can be trimmed and/or written in multiple passes. Additional bursts can also be written, such as for each data track centerline. This description is not intended to be a complete description of, or limit the scope of, the invention. Other features, aspects, and objects of the invention can be obtained from a review of the specification, the figures, and the claims.

    Abstract translation: 通过使用额外的介质转数来写入图案,可以减少写入伺服突发图案的位置误差量。 在两个伺服脉冲串的边缘用于限定介质上的位置的情况下,修整第一个脉冲串并以不同的转数写入第二个脉冲串将导致不同量的位置误差被写入每个脉冲串。 最终结果将是减少位置信息的总体错误。 为了进一步减少由突发对给出的位置误差,每个突发也可以被多次修剪和/或写入。 也可以写入附加的脉冲串,例如对于每个数据轨道中心线。 本说明书不是对本发明的完整描述或限制本发明的范围。 本发明的其它特征,方面和目的可以通过对说明书,附图和权利要求的评述来获得。

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