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公开(公告)号：US09195533B1
公开(公告)日：2015-11-24
申请号：US14039012
申请日：2013-09-27
Applicant: Seagate Technology LLC
Inventor： Won Choul Yang , Shi Jung Kim , Ju Yong Lee , Clifford Jayson Bringas Camalig , Mui Chong Chai
CPC classification number: G06F11/076 , G11B20/10009 , G11B20/10481 , G11C11/401 , G11C29/021 , G11C29/028 , G11C29/52
Abstract: The disclosure is related to an apparatus and methods for addressing variations in bit error rates amongst data storage segments. In a particular embodiment, an apparatus includes a controller that detects variations in bit error rates amongst different segments of a plurality of segments in a storage medium. The controller also adjusts a read/write operation parameter according to the detected variations amongst the bit error rates in the plurality of segments.
Abstract translation: 本公开涉及用于寻址数据存储段之间的误码率变化的装置和方法。 在特定实施例中，装置包括控制器，其检测存储介质中的多个段的不同段之间的误码率的变化。 控制器还根据检测到的多个段中的误码率的变化来调整读/写操作参数。
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公开(公告)号：US08934188B1
公开(公告)日：2015-01-13
申请号：US14036863
申请日：2013-09-25
Applicant: Seagate Technology LLC
Inventor： Shi Jung Kim , Won Choul Yang , Ju Yong Lee
Abstract: Technologies are described herein for adaptive write pole tip protrusion compensation in a storage device having magnetic recording media. Variations in temperature of a head of a storage device are measured for various combinations of values of write-channel parameters during multiple test writes to the recording media. Sensitivity of the head temperature to change in value of the write-channel parameters is determined from the temperature measurements. A ratio of change in write pole tip protrusion of the head to change in head temperature is also determined. From the sensitivity of the head temperature to change in value of the write-channel parameters and the ratio of change in write pole tip protrusion of the head to change in head temperature, a coefficient corresponding to each write-channel parameter is calculated for the head to be utilized in a write pole tip protrusion compensation mechanism of the storage device.
Abstract translation: 本文中描述了在具有磁记录介质的存储装置中的自适应写极尖突起补偿技术。 在针对记录介质的多次测试写入期间，针对写入通道参数的值的各种组合来测量存储设备的磁头的温度变化。 根据温度测量确定磁头温度对写通道参数值变化的灵敏度。 还确定了磁头的磁头尖端突起与磁头温度变化的变化率。 从头温度的灵敏度到写通道参数的值的变化以及磁头的写入极尖突起的变化比率与磁头温度的变化相对应，针对磁头的每个写通道参数对应的系数 用于存储装置的写极尖突起补偿机构。
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13.发明授权公开(公告)号：US08934185B2
公开(公告)日：2015-01-13
申请号：US13725054
申请日：2012-12-21
Applicant: Seagate Technology LLC
Inventor： Jung Wook Hur , Won Choul Yang , Haejung Lee
Abstract: Technologies are described herein for recovering an instable head in a storage device using an internal head heater. An instability in the reader head may be detected, and, in response to detecting the instability, a thermal shock may be applied to the reader head utilizing the head heater to recover the head.
Abstract translation: 这里描述了用于使用内部头部加热器来恢复存储装置中的不稳定头部的技术。 可以检测读取器头部的不稳定性，并且响应于检测到不稳定性，可以利用头部加热器对读取头施加热冲击以恢复头部。
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