公开(公告)号：US20150380040A1

公开(公告)日：2015-12-31

申请号：US14852755

申请日：2015-09-14

Applicant: Seagate Technology LLC

Inventor： Alfredo Chu ,  Kenneth Arthur Haapala ,  Paul William Burnett ,  Siew Kin Chow

IPC: G11B7/1267 ,  G11B5/09

CPC classification number: G11B13/08 ,  G11B5/09 ,  G11B5/314 ,  G11B5/4866 ,  G11B5/6088 ,  G11B7/1263 ,  G11B7/1267 ,  G11B2005/0021

Abstract: A system may have a data storage medium that contains at least one data bit that is accessed by a transducing head that has a near-field transducer. A controller can be connected to the transducing head and store a plurality of near-field transducer operating currents in a memory. The controller may identify a change in efficiency of the near-field transducer from the plurality of near-field transducer operating currents.

公开(公告)号：US20150235665A1

公开(公告)日：2015-08-20

申请号：US14185424

申请日：2014-02-20

Applicant: Seagate Technology LLC

Inventor： Alfredo Sam Chu ,  Kenneth Arthur Haapala ,  Paul William Burnett ,  Siew Kin Chow

IPC: G11B7/1263

CPC classification number: G11B13/08 ,  G11B5/09 ,  G11B5/314 ,  G11B5/4866 ,  G11B5/6088 ,  G11B7/1263 ,  G11B7/1267 ,  G11B2005/0021

Abstract: A system may have a data storage medium that contains at least one data bit that is accessed by a transducing head that has a near-field transducer. A controller can be connected to the transducing head and store a plurality of near-field transducer operating currents in a memory. The controller may identify a change in efficiency of the near-field transducer from the plurality of near-field transducer operating currents.

Abstract translation: 系统可以具有包含由具有近场换能器的换能头访问的至少一个数据位的数据存储介质。 控制器可以连接到转换头并将多个近场换能器工作电流存储在存储器中。 控制器可以从多个近场换能器工作电流中识别近场换能器的效率变化。

公开(公告)号：US09396750B2

公开(公告)日：2016-07-19

申请号：US14852755

申请日：2015-09-14

Applicant: Seagate Technology LLC

Inventor： Alfredo Chu ,  Kenneth Arthur Haapala ,  Paul William Burnett ,  Siew Kin Chow

IPC: G11B11/00 ,  G11B13/08 ,  G11B7/1267 ,  G11B7/1263 ,  G11B5/48 ,  G11B5/60 ,  G11B5/31 ,  G11B5/09 ,  G11B5/00

CPC classification number: G11B13/08 ,  G11B5/09 ,  G11B5/314 ,  G11B5/4866 ,  G11B5/6088 ,  G11B7/1263 ,  G11B7/1267 ,  G11B2005/0021

Abstract: A system may have a data storage medium that contains at least one data bit that is accessed by a transducing head that has a near-field transducer. A controller can be connected to the transducing head and store a plurality of near-field transducer operating currents in a memory. The controller may identify a change in efficiency of the near-field transducer from the plurality of near-field transducer operating currents.

公开(公告)号：US09142244B2

公开(公告)日：2015-09-22

申请号：US14185424

申请日：2014-02-20

Applicant: Seagate Technology LLC

Inventor： Alfredo Sam Chu ,  Kenneth Arthur Haapala ,  Paul William Burnett ,  Siew Kin Chow

IPC: G11B11/00 ,  G11B13/08 ,  G11B7/1263 ,  G11B5/48 ,  G11B5/60 ,  G11B5/00

CPC classification number: G11B13/08 ,  G11B5/09 ,  G11B5/314 ,  G11B5/4866 ,  G11B5/6088 ,  G11B7/1263 ,  G11B7/1267 ,  G11B2005/0021

Abstract: A system may have a data storage medium that contains at least one data bit that is accessed by a transducing head that has a near-field transducer. A controller can be connected to the transducing head and store a plurality of near-field transducer operating currents in a memory. The controller may identify a change in efficiency of the near-field transducer from the plurality of near-field transducer operating currents.

Abstract translation: 系统可以具有包含由具有近场换能器的换能头访问的至少一个数据位的数据存储介质。 控制器可以连接到转换头并将多个近场换能器工作电流存储在存储器中。 控制器可以从多个近场换能器工作电流中识别近场换能器的效率变化。