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1. 发明申请

US20190051329A1 INTERLACED MAGNETIC RECORDING STORAGE SYSTEM 审中-公开
公开(公告)号：US20190051329A1
公开(公告)日：2019-02-14
申请号：US15676550
申请日：2017-08-14
申请人： Seagate Technology LLC
发明人： Qiang Bi , Kian Keong Ooi , Christopher M. Woldemar , ShihMing Lau
IPC分类号： G11B20/18 , G06F12/0866 , G06F11/07 , G11B20/12
摘要： The disclosed technology provides a system and method that improves interlaced magnetic recording (IMR) data throughput in vibration in storage systems. In one implementation, a method includes determining whether there are write retry operations in the IMR storage device, determining whether bottom track caching space is available responsive to determining whether there are write retry operations in the IMR storage device, performing a vibration detection scheme to identify vibration events responsive to determining whether bottom track caching space is available, determining if a number of vibration events is above a predetermined threshold, and writing data to available bottom track caching space responsive to determining if the number of vibration events is above a predetermined threshold.

2. 发明授权

US09805749B1 Heat-assisted magnetic recording drive enclosure with arcuate channel for accommodating laser diode unit 有权
公开(公告)号：US09805749B1
公开(公告)日：2017-10-31
申请号：US15094055
申请日：2016-04-08
申请人： Seagate Technology LLC
发明人： Chuen Buan Lee , Tim Rausch , Xiong Liu , Qiang Bi
IPC分类号： G11B11/00 , G11B5/48 , G11B5/00
CPC分类号： G11B5/4826 , G11B5/105 , G11B5/4833 , G11B5/484 , G11B5/4866 , G11B5/4873 , G11B2005/0021
摘要： An apparatus comprises a heat-assisted magnetic recording drive which includes an enclosure having a base and a cover. The drive includes a magnetic recording disk and a head gimbal assembly proximate one of the base and the cover. The HGA supports a slider assembly comprising a laser diode unit. The LDU projects away from the HGA towards one of the base and the cover. An arcuate channel is provided in one of the base and the cover and dimensioned to receive a distal portion of the LDU. The channel has a length that accommodates the distal portion of the LDU along a stroke of the HGA.

3. 发明授权

US11380356B2 Flexible on-cylinder limit for drive performance management 有权
公开(公告)号：US11380356B2
公开(公告)日：2022-07-05
申请号：US17218810
申请日：2021-03-31
申请人： Seagate Technology LLC
发明人： Phan Linh Nguyen , Chi Sern Georgie Tan , Qiang Bi , Joshua W. Christensen , Song Wee Teo , Wei Chen Lau , Heather Lee Mallett , Renee Depew , David Allan Thorsvik , Tze Pin Chin , Jose Mari Toribio
IPC分类号： G11B5/09 , G11B5/596 , G11B20/12 , G11B20/10 , G11B33/12
摘要： The technology disclosed herein provides a method for generating an on-cylinder limit (OCLIM), the method including performing servo certification of a plurality of drives in a storage device to generate servo adaptive parameters (SAPs) by heads, generating a plurality of read adjust parameters (RAPs) by heads for the plurality of drives, generating an interim OCLIM value based on the SAPs by heads and RAPs by zones, and operating a disc drive write element using the interim OCLIM value.

4. 发明授权

US10090009B2 Vibration compensation using disk locked clock error 有权
公开(公告)号：US10090009B2
公开(公告)日：2018-10-02
申请号：US15247382
申请日：2016-08-25
申请人： Seagate Technology LLC
发明人： Qiang Bi , GuoQing Zhang , Kian Keong Ooi , MingZhong Ding , WenJun Cao
IPC分类号： G11B5/09 , G11B5/48
摘要： An apparatus includes a disk locked clock system and a feedforward microactuator compensator. The disk locked clock system is configured to estimate a timing error and generate a timing error signal. The feedforward microactuator compensator is configured to generate a microactuator compensation signal, without use of a vibration sensor signal, in response to the timing error signal.

5. 发明授权

US09495988B1 Dependent write fault threshold 有权
标题翻译：相关写入故障阈值
公开(公告)号：US09495988B1
公开(公告)日：2016-11-15
申请号：US14850560
申请日：2015-09-10
申请人： Seagate Technology LLC
发明人： Xiong Liu , Qiang Bi , Choon Kiat Lim , MingZhong Ding
IPC分类号： G11B27/36 , G11B5/596 , G11B5/012 , G11B5/09
CPC分类号： G11B5/59627 , G11B5/012 , G11B5/09 , G11B20/10009 , G11B20/1217
摘要： Systems, apparatuses, and processes having a dependent write fault threshold are disclosed. A first sector may have a first write fault threshold and a second sector, adjacent to the first sector, may have a second write fault threshold, and the write fault thresholds can be variable based on a position error signal value of an adjacent sector. In some embodiments, the adjacent sectors may each be in an adjacent track. In other embodiments, the adjacent sectors may be in the same track. Further, a track may have two write fault thresholds, a positive direction threshold and a negative direction threshold; in some embodiments, only one direction's threshold may be variable based on the position error signal of the adjacent sector, while the opposite direction's threshold may be set to a default (e.g. pre-determined not on a sector by sector basis) value.
摘要翻译：公开了具有从属写入故障阈值的系统，设备和过程。第一扇区可以具有第一写入故障阈值，并且与第一扇区相邻的第二扇区可以具有第二写入故障阈值，并且写入故障阈值可以基于相邻扇区的位置误差信号值而变化。在一些实施例中，相邻扇区可以各自在相邻的轨道中。在其他实施例中，相邻扇区可以在相同的轨道中。此外，轨道可以具有两个写故障阈值，正方向阈值和负方向阈值; 在一些实施例中，只有一个方向的阈值可以基于相邻扇区的位置误差信号而变化，而相反方向的阈值可以被设置为默认值（例如，不是逐扇区预先确定的）。

6. 发明授权

US11783856B2 Adaptable servo controllers 有权
公开(公告)号：US11783856B2
公开(公告)日：2023-10-10
申请号：US16875303
申请日：2020-05-15
申请人： Seagate Technology LLC
发明人： Qiang Bi , Jin Quan Shen , Xiong Liu , Xiang Lu , Hui Wang
IPC分类号： G11B5/55
CPC分类号： G11B5/5582
摘要： A device includes a servo controller that includes or that is coupled to memory. The memory stores multiple distinct disturbance control schemes. The servo controller is configured to select and implement one of the disturbance control schemes in response to receiving a command from a host. The servo controller can be implemented on a system on a chip.

7. 发明授权

US11682429B2 System and method for write-retry management 有权
公开(公告)号：US11682429B2
公开(公告)日：2023-06-20
申请号：US17583558
申请日：2022-01-25
申请人： Seagate Technology LLC
发明人： Qiang Bi , Jian Qiang , WenXiang Xie
IPC分类号： G11B5/09 , G11B20/18 , G11B20/10
CPC分类号： G11B20/1889 , G11B20/105
摘要： The technology disclosed herein pertains to a system and method for managing write failures in a disc drive. Implementations disclosed herein provide a method including monitoring write fault events per sector for a storage device, in response to a write fault event, updating a write fault repeat count table, wherein the repeat count table tracks a number of write fault repeat counts per sector, comparing a write fault repeat count for a sector to a predetermined threshold write fault repeat count, and in response to determining that the write fault repeat count for a sector is above the predetermined threshold write fault repeat count, performing a write-reassign operation.

8. 发明授权

US09236073B1 Write fault threshold for a set of tracks 有权
标题翻译：为一组轨迹写入故障阈值
公开(公告)号：US09236073B1
公开(公告)日：2016-01-12
申请号：US14520110
申请日：2014-10-21
申请人： Seagate Technology LLC
发明人： Xiong Liu , Qiang Bi , Choon Kiat Lim , MingZhong Ding
IPC分类号： G11B15/18 , G11B5/596 , G11B5/09
CPC分类号： G11B5/59627 , G11B5/012 , G11B5/09 , G11B20/10009 , G11B20/1217
摘要： Systems and methods are disclosed having a write fault threshold for a set of tracks. A set of tracks may have a shared write fault threshold budget, and a write fault threshold for the second track may be selected based on the shared budget reduced by an off-track position error signal value of the first track. In certain embodiments, an apparatus may comprise a processor configured to determine a position error signal value for a first data track, set a write fault threshold for a second data track adjacent to the first data track based on the position error signal, and write data to the second data track based on the write fault threshold.
摘要翻译：公开了具有一组轨道的写入故障阈值的系统和方法。一组轨道可以具有共享写入故障阈值预算，并且可以基于由第一轨道的偏离轨迹位置误差信号值减去的共享预算来选择用于第二轨道的写入故障阈值。在某些实施例中，装置可以包括处理器，其被配置为确定第一数据磁道的位置误差信号值，基于位置误差信号设置与第一数据磁道相邻的第二数据磁道的写入故障阈值，以及写入数据基于写入故障阈值到第二数据轨道。

9. 发明申请

US20150269081A1 HDD WRITE BUFFER ZONE FOR VIBRATION CONDITION 有权
标题翻译：硬盘写入缓冲区用于振动条件
公开(公告)号：US20150269081A1
公开(公告)日：2015-09-24
申请号：US14222277
申请日：2014-03-21
申请人： Seagate Technology LLC
发明人： JiaHong Shu , Xiang Lu , KianKeong Ooi , Qiang Bi
IPC分类号： G06F12/08 , G06F3/06 , G11B5/09
CPC分类号： G06F12/0868 , G06F3/0619 , G06F3/0656 , G06F3/0676 , G06F2003/0691 , G06F2003/0692 , G06F2212/1032 , G06F2212/202 , G06F2212/21 , G06F2212/224 , G06F2212/281 , G06F2212/313 , G11B5/012 , G11B5/09 , G11B5/59694 , G11B20/10527 , G11B20/1217 , G11B20/1816 , G11B27/00 , G11B27/36
摘要： Technologies are described herein for temporarily writing data to a buffer zone on a recording medium of a storage device when the device is operating in a vibration condition. A vibration condition is detected in the storage device, and upon detecting the vibration condition, data of a current write operation is written to a buffer zone on a recording medium of the storage device, the buffer zone being configured with a lower areal density of storage than primary storage zones on the recording medium. At a later time, an idle condition may be detected in the device, and upon detecting the idle condition, it may be determined whether the vibration condition exists. If it is determined that the vibration condition no longer exists, the data is transferred from the buffer zone to the primary storage zones on the recording medium.
摘要翻译：这里描述了当设备在振动条件下操作时将数据临时写入存储设备的记录介质上的缓冲区的技术。在存储装置中检测到振动条件，并且在检测到振动条件时，将当前写入操作的数据写入存储装置的记录介质上的缓冲区，缓冲区被配置为具有较低的存储区域密度比记录介质上的主存储区域。稍后，在设备中可以检测到空闲状态，并且在检测到空闲状态时，可以确定是否存在振动条件。如果确定振动条件不再存在，则数据从缓冲区传送到记录介质上的主存储区。

10. 发明申请

US20150172810A1 DISC DRIVE SPEAKER VIBRATION MITIGATION 有权
标题翻译： DISC驱动扬声器振动缓解
公开(公告)号：US20150172810A1
公开(公告)日：2015-06-18
申请号：US14109687
申请日：2013-12-17
申请人： Seagate Technology LLC
发明人： Lealon R. McKenzie , Evgeny Kharisov , Zai Yu Nang , Qiang Bi , Seow Zhao Li , Raye A. Sosseh
IPC分类号： H04R3/00 , G11B5/55
CPC分类号： H04R3/002 , G11B5/5582 , G11B5/59694 , H04R15/00 , H04R29/001
摘要： Certain exemplary aspects of the present disclosure are directed towards apparatuses and methods which mitigate the effect of speaker vibration on a disc drive. Audio associated with a speaker output is detected and triggers the generation of an output signal indicative of speaker vibration associated with such an audio output of a speaker. A magnetoresistive transducer of the disc drive is positioned relative to a storage medium based on the output signal, a target data storage location in the storage medium from which data is to be accessed via the positioning, and the position of the transducer. The output signal mitigates the effect of the speaker vibration on the transducer.
摘要翻译：本公开的某些示例性方面涉及减轻扬声器振动对盘驱动器的影响的装置和方法。检测到与扬声器输出相关联的音频，并且触发指示与扬声器的这种音频输出相关联的扬声器振动的输出信号的产生。磁盘驱动器的磁阻换能器基于输出信号相对于存储介质定位，存储介质中的目标数据存储位置，通过定位将从该存储介质访问数据，以及换能器的位置。输出信号可以减轻扬声器振动对传感器的影响。

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