公开(公告)号：US20050157416A1

公开(公告)日：2005-07-21

申请号：US11082120

申请日：2005-03-16

Applicant: Richard Ehrlich ,  Thorsten Schmidt

Inventor： Richard Ehrlich ,  Thorsten Schmidt

IPC: G11B5/596 ,  G11B21/02 ,  G11B27/36

CPC classification number: G11B5/59633

Abstract: The misplacement of a servo burst during a servowriting or self-servowriting process can be corrected by erasing and re-writing that burst. In addition, WORF information of a track can be saved in memory for future servowriting and/or can be utilized to compare with a pre-determined threshold to identify servo bursts to be repaired. Alternatively, a batch writing approach can be used to minimize the time needed to re-write misplaced 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: 在伺服驱动或自伺服驱动过程中伺服脉冲串的错位可以通过擦除和重新写入该脉冲来校正。 另外，轨道的WORF信息可以保存在存储器中用于将来的伺服驱动和/或可用于与预定阈值进行比较以识别要修复的伺服脉冲串。 或者，可以使用批量写入方法来最小化重新写入错放脉冲串所需的时间。 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。

公开(公告)号：US20050141129A1

公开(公告)日：2005-06-30

申请号：US11016624

申请日：2004-12-17

Applicant: Thorsten Schmidt ,  Fernando Zayas ,  Richard Ehrlich

Inventor： Thorsten Schmidt ,  Fernando Zayas ,  Richard Ehrlich

IPC: G11B5/09 ,  G11B5/596 ,  G11B19/04

CPC classification number: G11B5/09 ,  G11B5/596 ,  G11B19/04

Abstract: Systems and methods in accordance with embodiments can be used to re-write data to a rotatable storage medium. When a position of a write element is not within a threshold during a data write operation, an indication of data written while the position of the element was not within the threshold can be maintained. When the device including the rotatable storage medium is free from other data transfer operations, the data written while the element was not within the threshold can be re-written. In this manner, data that may be considered less reliable due to the misplacement of a write element during a data write operation can be re-written such that the data can be placed closer to a data track centerline.

Abstract translation: 根据实施例的系统和方法可以用于将数据重写到可旋转的存储介质。 当在数据写入操作期间写入元件的位置不在阈值内时，可以保持在元素的位置不在阈值内时写入的数据的指示。 当包括可旋转存储介质的设备没有其他数据传输操作时，可以重写写入元素不在阈值内的数据。 以这种方式，可以重新写入由于在数据写入操作期间写入元件的错位可能被认为不太可靠的数据，使得数据可以被放置得更靠近数据轨道中心线。

公开(公告)号：US20050128620A1

公开(公告)日：2005-06-16

申请号：US10733013

申请日：2003-12-10

Applicant: Richard Ehrlich ,  Gary Calfee ,  Anton Gerasimov ,  James Wiseman

Inventor： Richard Ehrlich ,  Gary Calfee ,  Anton Gerasimov ,  James Wiseman

IPC: G11B5/596 ,  G11B5/86 ,  G11B5/09

CPC classification number: G11B5/59633 ,  G11B5/865 ,  G11B2005/0021

Abstract: Template patterns in accordance with the present invention can include one or more maker-zones printed to a reference surface of a disk for determining gross-position along a stroke of a read head connected with a rotary actuator. The one or more marker-zones can be printed or otherwise written to a portion of the reference surfaces as one or more pulses. In one embodiment, each pulse can trace the motion of the stroke along at least a portion of the radius of the reference surface. A pulse can identify a marker-zone edge when a di-bit (a transition pair representing a pulse) disappears at some radius from center of the disk. At a radius closer to the center of the disk, the di-bit can abruptly reappear so that the pulse is continued. The interruption in the radial continuity of the magnetized pulse defines the marker-zone and can be any length.

Abstract translation: 根据本发明的模板图案可以包括打印到盘的参考表面的一个或多个制造商区域，用于确定沿着与旋转致动器连接的读取头的行程的总位置。 可以将一个或多个标记区域作为一个或多个脉冲打印或以其他方式写入参考表面的一部分。 在一个实施例中，每个脉冲可以沿着参考表面的半径的至少一部分跟踪行程的运动。 当二位（表示脉冲的转换对）从磁盘中心的某个半径消失时，脉冲可以识别标记区域边缘。 在靠近盘中心的半径处，二位可以突然重新出现，使脉冲持续。 磁化脉冲的径向连续性的中断限定了标记区域，并且可以是任何长度。

公开(公告)号：US20050122610A1

公开(公告)日：2005-06-09

申请号：US10728049

申请日：2003-12-04

Applicant: Richard Ehrlich

Inventor： Richard Ehrlich

IPC: G11B5/02 ,  G11B5/09 ,  G11B20/10 ,  G11B20/12

CPC classification number: G11B20/10 ,  G11B20/10527 ,  G11B2020/10916

Abstract: A hard drive retrieves critical data determined to be requested by a host device in the near future and re-allocates the critical data on the hard drive medium. The hard drive provides the critical data to the requesting host upon receiving the request, thereby eliminating the time required to respond to the request due to media accessing. The critical data can be written to reserved areas of the media that provide desirable read characteristics. In this aspect, the present invention may trade drive capacity and/or media write speed for media read speed. The critical data maybe re-allocated and placed in sequential order, thereby saving time from seeking to different locations over the media. Critical data may stored in FLASH memory, providing quicker data access while consuming less power.

Abstract translation: 硬盘驱动器将在不久的将来检索确定要由主机设备请求的关键数据，并在硬盘驱动器介质上重新分配关键数据。 硬盘驱动器在接收到请求时向请求主机提供关键数据，从而消除了由于媒体访问而响应请求所需的时间。 关键数据可以写入到提供所需读取特性的介质的保留区域。 在这方面，本发明可以交换用于媒体读取速度的驱动能力和/或媒体写入速度。 关键数据可能会重新分配并按顺序排列，从而节省了从媒体到不同位置的时间。 关键数据可能存储在闪存中，提供更快的数据访问，同时消耗更少的电力。

公开(公告)号：US20050063087A1

公开(公告)日：2005-03-24

申请号：US10665226

申请日：2003-09-18

Applicant: Richard Ehrlich

Inventor： Richard Ehrlich

IPC: G11B5/596

CPC classification number: G11B5/59633

Abstract: Methods are provided for limiting channel control values, such as servo automatic gain control (AGC) values and/or servo phase lock loop (PLL) values, within respective desired ranges. Keeping such values within desired ranges improves servo demodulation robustness.

Abstract translation: 提供了用于在相应的期望范围内限制通道控制值的方法，例如伺服自动增益控制（AGC）值和/或伺服锁相环（PLL）值。 将这些值保持在所需范围内可提高伺服解调的鲁棒性。

公开(公告)号：US20050013026A1

公开(公告)日：2005-01-20

申请号：US10620818

申请日：2003-07-16

Applicant: Richard Ehrlich

Inventor： Richard Ehrlich

IPC: G11B5/09 ,  G11B5/596 ,  G11B20/10 ,  G11B20/08

CPC classification number: G11B5/09 ,  G11B5/59633 ,  G11B20/10009 ,  G11B20/10037 ,  G11B2020/10888

Abstract: Servo demodulation systems including multiple servo demodulators are provided. A first servo demodulator is adapted to search for a servo address mark (SAM) pattern using a first set of servo demodulation detection parameters. A second servo demodulator is adapted to search for the SAM pattern using a second set of servo demodulation parameters, wherein at least one servo demodulation parameter in the second set is different than a corresponding parameter in the first set. Example servo demodulation parameters include staring automatic gain control (AGC) values and starting phase lock loop (PLL) values.

Abstract translation: 提供包括多个伺服解调器的伺服解调系统。 第一伺服解调器适于使用第一组伺服解调检测参数来搜索伺服地址标记（SAM）模式。 第二伺服解调器适于使用第二组伺服解调参数搜索SAM模式，其中第二组中的至少一个伺服解调参数不同于第一组中的相应参数。 示例伺服解调参数包括凝视自动增益控制（AGC）值和启动锁相环（PLL）值。

公开(公告)号：US20060209455A1

公开(公告)日：2006-09-21

申请号：US11081445

申请日：2005-03-16

Applicant: Richard Ehrlich

Inventor： Richard Ehrlich

IPC: G11B5/596

CPC classification number: G11B5/59655

Abstract: A rotatable storage media includes multiple concentric data tracks and servo sectors embedded within the tracks. In some embodiments, the servo sectors have servo burst patterns including a plurality of burst groups, with each of the burst groups including a trimmed burst that is stitched and trimmed such that is has a first width, and an untrimmed burst that has a second width that is less than the first width. In other embodiments, each of the burst groups include a pair of untrimmed bursts, with one of the untrimmed bursts being wider than the other. In still another embodiment, all bursts are trimmed, but some are wider than others. Preferably, such burst patterns are written using a two-pass-per-track servowriting scheme. This description is not intended to be a complete description of, or limit the scope of, the invention

Abstract translation: 可旋转存储介质包括嵌入轨道内的多个同心数据轨道和伺服扇区。 在一些实施例中，伺服扇区具有包括多个突发群组的伺服突发模式，其中每个突发群组包括经缝合和修剪以使其具有第一宽度的修整突发，以及具有第二宽度的未修整突发 即小于第一宽度。 在其他实施例中，每个突发组包括一对未修剪的脉冲串，其中一个未修整脉冲串比另一个更宽。 在另一个实施例中，所有突发都被修剪，但是一些比其他突发更宽。 优选地，这种脉冲串模式是使用每通道双通道伺服驱动方案来写的。 本说明书不是对本发明的完整描述或限制本发明的范围

公开(公告)号：US20060132962A1

公开(公告)日：2006-06-22

申请号：US11090607

申请日：2005-03-25

Applicant: Richard Ehrlich ,  Maxim Roth ,  David Rutherford

Inventor： Richard Ehrlich ,  Maxim Roth ,  David Rutherford

IPC: G11B21/02 ,  G11B5/09

CPC classification number: G11B5/59655

Abstract: The minor coherence-errors suffered during servowriting of bursts in a phase burst servo pattern may contribute to significant written-in runout of the resulting pattern. Embodiments of the present invention enables the servowriting of both the zig/zag bursts and/or the digital information of the phase burst pattern all in one single revolution so that the common coherence errors of the zig/zag bursts can be canceled during demodulation. Such single pass servowriting of both zig/zag bursts can be accomplished by either using additional phase-adjustment circuitry or by shifting the phase of the write clock to allow servowriting of the bursts and/or digital information all at edges of (different) integer clock cycles. 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.

公开(公告)号：US20060098326A1

公开(公告)日：2006-05-11

申请号：US10983376

申请日：2004-11-08

Applicant: Richard Ehrlich ,  Thorsten Schmidt

Inventor： Richard Ehrlich ,  Thorsten Schmidt

IPC: G11B21/02 ,  G11B5/09

CPC classification number: G11B5/59633

Abstract: Methods are provided for selecting write elements, that can be used in a media-writer, for writing servo burst patterns that have a desired width. Methods for writing preferred servo patterns are also provided. Methods for controlling a write current to produce servo bursts have a desired width are also provided. In accordance with specific embodiments of the present invention, the desired burst width is three-fourths of a data track wide. 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: 提供了用于选择可用于媒体写入器中的写入元件用于写入具有期望宽度的伺服突发图案的方法。 还提供了写入优选伺服模式的方法。 还提供了用于控制写入电流以产生伺服脉冲串的方法具有期望的宽度。 根据本发明的具体实施例，期望的突发宽度是数据轨道宽度的四分之三。 本说明书不是对本发明的完整描述或限制本发明的范围。 本发明的其他特征，方面和目的可以从对说明书，附图和权利要求的评论中获得。

公开(公告)号：US20060056092A1

公开(公告)日：2006-03-16

申请号：US10939024

申请日：2004-09-10

Applicant: Richard Ehrlich ,  Fernando Zayas

Inventor： Richard Ehrlich ,  Fernando Zayas

IPC: G11B21/02 ,  G11B5/596

CPC classification number: G11B5/59627

Abstract: Embodiments of the present invention relate to systems, methods, and computer readable media for calibrating storage devices such as hard drives. Storage devices include storage media that are divided into differing data zones having differing data densities. A testing system initiates a series of microjog tests in the storage that are configured to determine read/write offsets indicating a distance between a write position associated with a particular location and a preferred read position for the location. To calibrate the storage device, the testing system or other product measures read/write offsets at different locations on an actuator stroke within a read/write zone. The storage device then determines predicted read/write offsets for the zone based upon the determined read/write offsets at locations in the read/write zone.

Abstract translation: 本发明的实施例涉及用于校准诸如硬盘驱动器的存储设备的系统，方法和计算机可读介质。 存储设备包括被分成具有不同数据密度的不同数据区的存储介质。 测试系统启动存储器中的一系列微测试测试，其被配置为确定指示与特定位置相关联的写入位置与该位置的优选读取位置之间的距离的读取/写入偏移。 要校准存储设备，测试系统或其他产品将在读/写区域中的执行器行程上的不同位置测量读/写偏移量。 存储设备然后基于在读/写区域中的位置处的确定的读/写偏移确定区域的预测读/写偏移。