公开(公告)号：US20140129891A1

公开(公告)日：2014-05-08

申请号：US14154859

申请日：2014-01-14

Applicant: Seagate Technology LLC

Inventor： Navneeth Kankani ,  Mark Allen Gaertner ,  Rodney Virgil Bowman ,  Ryan James Goss ,  David Scott Seekins ,  Tong Shirh Stone

IPC: G06F11/10

CPC classification number: G06F11/102 ,  G06F11/1012 ,  G11C29/52

Abstract: A first data set is written to first memory units identified as having a higher data reliability and a second data set is written to second memory units identified as having a lower data reliability than the first memory units. In some cases, the second data set may include metadata or redundancy information that is useful to aid in reading and/or decoding the first data set. The act of writing the second data set increases the data reliability of the first data set. The second data set may be a null pattern, such as all erased bits.

Abstract translation: 将第一数据集写入被识别为具有较高数据可靠性的第一存储器单元，并且将第二数据组写入被识别为具有比第一存储器单元更低的数据可靠性的第二存储器单元。 在一些情况下，第二数据集可以包括有助于读取和/或解码第一数据集的元数据或冗余信息。 写入第二数据集的动作增加了第一数据集的数据可靠性。 第二数据集可以是空模式，例如所有擦除位。

公开(公告)号：US09466329B1

公开(公告)日：2016-10-11

申请号：US14852503

申请日：2015-09-12

Applicant: Seagate Technology LLC

Inventor： Richard P. Michel ,  Ray V. Rigles ,  Tong Shirh Stone

IPC: G11B5/02 ,  G11B27/36 ,  G11B20/10

CPC classification number: G11B20/10305 ,  G11B20/10222

Abstract: Methods for determining a variable data frequency for recording data on a zone of a magnetic storage disc, each zone including a plurality of tracks and each track including a plurality of sectors, the method includes measuring a signal to noise ratio (S/N) around at least a first track in a first zone; and modulating a data frequency based on the measured S/N around the first track.

Abstract translation: 用于确定用于在磁存储盘的区域上记录数据的可变数据频率的方法，每个区域包括多个轨道，每个轨道包括多个扇区，所述方法包括测量周围的信噪比（S / N） 至少在第一区域中的第一轨道; 以及基于所测量的第一轨道周围的S / N来调制数据频率。

公开(公告)号：US09418688B1

公开(公告)日：2016-08-16

申请号：US14812032

申请日：2015-07-29

Applicant: Seagate Technology LLC

Inventor： Tim Rausch ,  Tong Shirh Stone ,  Mark Allen Gaertner

IPC: G11B11/00 ,  G11B5/48 ,  G11B5/00 ,  G11B5/60 ,  G11B5/31

CPC classification number: G11B5/59627 ,  G11B5/314 ,  G11B5/3967 ,  G11B5/6005 ,  G11B2005/0021

Abstract: A heat-assisted magnetic recording head is configured to write data to and read data from a magnetic recording medium. The head comprises a reader and a writer including a near-field transducer (NFT). The reader comprises a center which is laterally offset relative to a center of the writer to define a reader-writer offset (RWO) therebetween. A controller is configured to control the writer to write data to data tracks of the medium, detect a shift in the RWO, and in response to the detected shift in the RWO, control the writer to write data to a plurality of tracks defining a reserved band during an open period of the reserved band.

Abstract translation: 热辅助磁记录头被配置为将数据写入磁记录介质并从其读取数据。 头包括读取器和包括近场换能器（NFT）的写入器。 读取器包括相对于写入器的中心横向偏移的中心，以在其间限定读取器 - 写入器偏移（RWO）。 控制器被配置为控制写入器将数据写入到介质的数据轨道，检测RWO中的移位，并且响应于检测到的RWO中的移位，控制写入器将数据写入多个定义保留的轨道 在保留频段的开放期间。

公开(公告)号：US09164830B2

公开(公告)日：2015-10-20

申请号：US14154859

申请日：2014-01-14

Applicant: Seagate Technology LLC

Inventor： Navneeth Kankani ,  Mark Allen Gaertner ,  Rodney Virgil Bowman ,  Ryan James Goss ,  David Scott Seekins ,  Tong Shirh Stone

IPC: H03M13/00 ,  G06F11/10 ,  G11C29/52

CPC classification number: G06F11/102 ,  G06F11/1012 ,  G11C29/52

Abstract: A first data set is written to first memory units identified as having a higher data reliability and a second data set is written to second memory units identified as having a lower data reliability than the first memory units. In some cases, the second data set may include metadata or redundancy information that is useful to aid in reading and/or decoding the first data set. The act of writing the second data set increases the data reliability of the first data set. The second data set may be a null pattern, such as all erased bits.

Abstract translation: 将第一数据集写入被识别为具有较高数据可靠性的第一存储器单元，并且将第二数据组写入被识别为具有比第一存储器单元更低的数据可靠性的第二存储器单元。 在一些情况下，第二数据集可以包括有助于读取和/或解码第一数据集的元数据或冗余信息。 写入第二数据集的动作增加了第一数据集的数据可靠性。 第二数据集可以是空模式，例如所有擦除位。