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51. 发明申请

US20050237657A1 Systems for selective multi-pass servowriting and self-servowriting 有权
标题翻译：选择性多通道伺服驱动和自伺服系统
公开(公告)号：US20050237657A1
公开(公告)日：2005-10-27
申请号：US10818450
申请日：2004-04-05
申请人： Richard Ehrlich
发明人： Richard Ehrlich
IPC分类号： G11B5/596 , G11B21/02 , G11B21/10
CPC分类号： G11B5/59633 , G11B21/106
摘要： 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.
摘要翻译：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。

52. 发明申请

US20050237648A1 Systems for conditional servowriting 有权
标题翻译：有条件的伺服系统
公开(公告)号：US20050237648A1
公开(公告)日：2005-10-27
申请号：US10818704
申请日：2004-04-06
申请人： Richard Ehrlich
发明人： Richard Ehrlich
IPC分类号： G11B5/596 , G11B19/04 , G11B21/02
CPC分类号： G11B5/59633 , G11B5/59638
摘要： To account for head misplacement while servowriting, conditional writing and/or trimming of servo information can be used. Conditional servowriting allows servowriting to be disabled when it is determined that servo information will not be written and/or trimmed at a desired location or within a threshold distance of a desired location. For example, if a distance between a write element or a predicted location of servo information and a desired location of the servo information or write element exceeds a threshold, writing and/or trimming can be inhibited. Servowriting can be resumed when it is determined that servo information will be written or trimmed at a desired location or within a threshold distance of a desired location. A servowriting step or pass is not re-started when the threshold is exceeded and those wedges for which servo information was not writtten and/or trimmed can be attempted during subsequent revolutions of the rotatable storage medium.
摘要翻译：为了在伺服驱动时考虑头部错位，可以使用伺服信息的条件写入和/或修整。当确定伺服信息将不会在期望位置或所需位置的阈值距离内被写入和/或修剪时，条件伺服驱动允许禁用伺服驱动。例如，如果写入元件或伺服信息的预测位置与伺服信息或写入元件的期望位置之间的距离超过阈值，则可以抑制写入和/或修整。当确定伺服信息将在期望位置或期望位置的阈值距离内被写入或修剪时，可以恢复伺服。当超过阈值时，伺服驱动步骤或通过不会被重新启动，并且可以在可旋转存储介质的后续转动期间尝试那些伺服信息没有被扭曲和/或修剪的楔形物。

53. 发明申请

US20050237645A1 Methods for self-servowriting using write-current variation 有权
标题翻译：使用写入电流变化进行自伺服的方法
公开(公告)号：US20050237645A1
公开(公告)日：2005-10-27
申请号：US10818174
申请日：2004-04-05
申请人： Richard Ehrlich
发明人： Richard Ehrlich
IPC分类号： G11B5/02 , G11B5/09 , G11B5/596
CPC分类号： G11B5/59655 , G11B5/02
摘要： In order to account for the misplacement of a write element during a servowriting process, the width of the information being written can be varied. In a self-servowriting disk drive, for example, the write current supplied to a read/write head can be adjusted to vary the width of information, such as servo bursts, written by the head. By calibrating the head and determining the misplacement of the head while writing, an edge of a servo burst can be placed in the desired position regardless of the misplacement of the head simply by adjusting the width of the written burst. 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.
摘要翻译：为了解决在伺服写入过程中写入元件的错位，可以改变被写入的信息的宽度。例如，在自伺服磁盘驱动器中，可以调整提供给读/写头的写入电流，以改变由磁头写入的诸如伺服脉冲串的信息的宽度。通过校准头部并且在写入时确定头部的错位，伺服脉冲串的边缘可以简单地通过调整写入脉冲串的宽度而被放置在期望的位置，而不管头部的错位。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。

54. 发明申请

US20050141128A1 Systems and methods for rewriting data of data tracks potentially affected by data transfer operations in rotatable storage media 失效
标题翻译：用于重写可能受可旋转存储介质中的数据传输操作影响的数据轨道的数据的系统和方法
公开(公告)号：US20050141128A1
公开(公告)日：2005-06-30
申请号：US11016395
申请日：2004-12-17
申请人： Thorsten Schmidt , Richard Ehrlich
发明人： Thorsten Schmidt , Richard Ehrlich
IPC分类号： G11B5/09 , G11B5/596 , G11B19/04
CPC分类号： G11B19/04 , G11B5/09 , G11B5/596
摘要： Systems and methods in accordance with embodiments can be used to re-write user data to a rotatable storage medium. When a position of a write element is not within a threshold during a data write operation, a part of a data track potentially affected by the write operation, while the position of the write element was not within the threshold, can be determined. When the device including the rotatable storage medium is free from other data transfer operations, the data of the data track potentially affected by the write operation 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.
摘要翻译：根据实施例的系统和方法可以用于将用户数据重新写入可旋转的存储介质。当在数据写入操作期间写入元件的位置不在阈值内时，可以确定可写入操作潜在影响的数据轨道的一部分，同时写入元件的位置不在阈值内。当包括可旋转存储介质的设备没有其他数据传输操作时，可以重写可能受写入操作影响的数据轨道的数据。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而被认为不太可靠的数据。

55. 发明申请

US20050141126A1 Methods for WORF improvement in conditional servowriting 有权
标题翻译：条件伺服中WORF改进方法
公开(公告)号：US20050141126A1
公开(公告)日：2005-06-30
申请号：US11018202
申请日：2004-12-20
申请人： Richard Ehrlich , Thorsten Schmidt
发明人： Richard Ehrlich , Thorsten Schmidt
IPC分类号： G11B5/596 , G11B21/02
CPC分类号： G11B5/59633 , G11B5/59638
摘要： To account for head misplacement while servowriting, adjustments to thresholds used during writing and/or trimming of servo information can be used. A threshold can be used to disable servowriting when it is determined that servo information will not be written and/or trimmed at a desired location or within a threshold distance of a desired location. In multiple pass servowriting, a threshold can be adjusted for a pass or step or portion thereof using a position-error during a corresponding operation. For example, the position-error while trimming a first servo burst can be determined. Using the position-error, the threshold can be adjusted. The adjusted threshold can be used while writing a corresponding second servo burst. The threshold can be increased in a direction opposite to the determined position-error and decreased in the direction of the determined position-error. In this manner, the probability that the two bursts will identify a desired location can be increased.
摘要翻译：为了在伺服驱动时考虑磁头错位，可以使用在伺服信息的写入和/或修整期间使用的阈值的调整。当确定伺服信息不会在期望的位置或期望位置的阈值距离内被写入和/或修剪时，可以使用阈值来禁用伺服驱动。在多通道伺服驱动中，可以在相应的操作期间使用位置误差来调整通过或步进或其部分的阈值。例如，可以确定修整第一伺服脉冲串时的位置误差。使用位置误差，可以调整阈值。可以在写入对应的第二伺服脉冲串时使用调整后的阈值。阈值可以在与所确定的位置误差相反的方向上增加，并且在所确定的位置误差的方向上减小。以这种方式，可以增加两个突发将识别期望位置的概率。

56. 发明申请

US20050125602A1 HDD with storage of critical data in FLASH 审中-公开
标题翻译： HDD中关键数据存储在FLASH中
公开(公告)号：US20050125602A1
公开(公告)日：2005-06-09
申请号：US10727773
申请日：2003-12-04
申请人： Richard Ehrlich
发明人： Richard Ehrlich
IPC分类号： G06F3/06 , G06F12/00
CPC分类号： G06F3/0656 , G06F3/0611 , G06F3/0625 , G06F3/0632 , G06F3/0658 , G06F3/0679 , Y02D10/154
摘要： A hard drive retrieves critical data determined to be requested by a host device in the near future and stores it in a FLASH integrated circuit. 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 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. While the hard drive is in low power states, other data can be written to FLASH in order to conserve energy.
摘要翻译：硬盘驱动器检索在不久的将来确定要由主机设备请求的关键数据，并将其存储在FLASH集成电路中。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。当硬盘驱动器处于低功耗状态时，其他数据可以写入闪存，以节省能源。

57. 发明申请

US20050125601A1 HDD with rapid availability of critical data after critical event 有权
标题翻译：关键事件后关键数据可快速获得的HDD
公开(公告)号：US20050125601A1
公开(公告)日：2005-06-09
申请号：US10727721
申请日：2003-12-04
申请人： Richard Ehrlich
发明人： Richard Ehrlich
IPC分类号： G06F12/00
CPC分类号： G06F12/0862 , G06F12/0866 , G06F2212/313
摘要： A hard drive retrieves critical data determined to be requested by a host device in the near future and stores it in cache. 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 is retrieved upon the occurrence of a critical event. The critical data may be related to power-on of the computer, such as boot sector FAT system data. Thus, the cache of the present invention may use old data rather than new data or the last data accessed.
摘要翻译：硬盘驱动器检索在不久的将来确定要由主机设备请求的关键数据并将其存储在高速缓存中。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。在发生关键事件时检索关键数据。关键数据可能与计算机的上电相关，例如引导扇区FAT系统数据。因此，本发明的高速缓存可以使用旧数据而不是新数据或最后访问的数据。

58. 发明申请

US20050125600A1 Method for storing HDD critical data in flash 审中-公开
标题翻译：在闪存中存储HDD关键数据的方法
公开(公告)号：US20050125600A1
公开(公告)日：2005-06-09
申请号：US10727678
申请日：2003-12-04
申请人： Richard Ehrlich
发明人： Richard Ehrlich
IPC分类号： G06F12/00
CPC分类号： G06F3/0658 , G06F3/0611 , G06F3/0625 , G06F3/0632 , G06F3/0676 , G11B19/04 , Y02D10/154
摘要： A method for retrieving critical data that is determined to very likely be requested by a host device in the near future and storing it in FLASH. 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 may be related to power-on of the computer, such as boot sector FAT system data. 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. While the hard drive is in low power states, other data can be written to FLASH in order to conserve energy.
摘要翻译：用于检索在不久的将来很可能被主机设备请求并将其存储在FLASH中的关键数据的检索方法。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。关键数据可能与计算机的上电相关，例如引导扇区FAT系统数据。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。当硬盘驱动器处于低功耗状态时，其他数据可以写入闪存，以节省能源。

59. 发明申请

US20050073770A1 Systems and methods for repairable servo burst patterns 失效
标题翻译：可修复伺服突发模式的系统和方法
公开(公告)号：US20050073770A1
公开(公告)日：2005-04-07
申请号：US10923662
申请日：2004-08-20
申请人： Richard Ehrlich , Thorsten Schmidt
发明人： Richard Ehrlich , Thorsten Schmidt
IPC分类号： G11B5/596 , G11B21/02 , G11B27/36
CPC分类号： G11B5/59633
摘要： The misplacement of a servo burst during a servowriting or self-servowriting process can be corrected by erasing and re-writing that burst. A servo pattern can be selected that has sufficient radial separation between bursts such that if a burst is re-written and trimmed there should be no damage to adjacent bursts. The radial separation can be selected to be greater than the width of the appropriate write element in order to allow for some misplacement of the element during the erasing and/or re-writing of the misplaced burst. Alternatively, a batch writing approach can be used to minimize the time needed to re-write misplaced bursts. In addition, WORF information of a track can be saved in memory for future servowriting and/or can be utilized to calculate a threshold for identifying servo bursts to be repaired. 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.
摘要翻译：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。可以选择在脉冲串之间具有足够的径向间隔的伺服模式，使得如果突发被重新写入和修剪，则不应该对相邻脉冲串造成损坏。可以将径向间隔选择为大于适当写入元件的宽度，以便在错位突发的擦除和/或重写期间允许元件的一些错位。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。此外，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/或可用于计算用于识别要修复的伺服脉冲串的阈值。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。

60. 发明申请

US20050063088A1 Systems for limiting channel control values to thereby improve servo-demodulation robustness 失效
标题翻译：用于限制信道控制值的系统，从而提高伺服解调的鲁棒性
公开(公告)号：US20050063088A1
公开(公告)日：2005-03-24
申请号：US10665264
申请日：2003-09-18
申请人： Richard Ehrlich
发明人： Richard Ehrlich
IPC分类号： G11B5/596 , G11B19/28 , G11B20/06 , G11B20/10
CPC分类号： G11B20/10009 , G11B5/596 , G11B19/28 , G11B20/10055 , G11B2020/1284 , G11B2020/1484
摘要： Systems 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.
摘要翻译：系统被提供用于在相应的期望范围内限制通道控制值，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。

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