公开(公告)号：US10332547B1

公开(公告)日：2019-06-25

申请号：US16048864

申请日：2018-07-30

Applicant: Seagate Technology LLC

Inventor： Mehmet Faith Erden ,  Krishnan Subramanian ,  Walter R. Eppler

IPC: G11B5/09 ,  G11B5/012 ,  G11B21/00

Abstract: A first reader spans first and second tracks of a recording medium and provides a first signal responsive to a first total longitudinal field of the first and second tracks. A second read spans two other tracks, at least one of the two other tracks being different from the first and second tracks. The second reader provides a second signal responsive to a second total longitudinal field of the two other tracks. A third reader spans two or more of the tracks and provides a third signal responsive to a total perpendicular field of the two or more tracks. User data is decoded from the first, second, and third signals.

公开(公告)号：US10522184B1

公开(公告)日：2019-12-31

申请号：US16506222

申请日：2019-07-09

Applicant: Seagate Technology LLC

Inventor： Steven Douglas Granz ,  Mehmet Faith Erden

IPC: G11B5/00 ,  G11B5/09 ,  G11B20/12

Abstract: Bottom tracks are written to a recording medium using a first setting of a spin-torque oscillator of a single microwave assisted magnetic recording (MAMR) head. Top tracks are written interlaced between and partially overlapping the bottom tracks using the single MAMR head at a second setting of the MAMR head, the first and second settings resulting in different bit aspect ratios for the top and bottom tracks.

公开(公告)号：US10157631B2

公开(公告)日：2018-12-18

申请号：US15873126

申请日：2018-01-17

Applicant: Seagate Technology LLC

Inventor： Jon D. Trantham ,  Jason Bryce Gadbois ,  Mehmet Faith Erden

IPC: G11B21/02 ,  G11B5/29 ,  G11B5/596 ,  G11B5/31

Abstract: A slider includes an array of two or more transducer sets offset from one another in a cross-track direction. Each transducer set includes at least one writer and at least one reader. All of the transducer sets are configured to operate simultaneously to perform any combination of reading and writing on two or more tracks of a recording medium. At least one actuator is included between two the transducer sets. The actuator is configured to adjust a cross-track spacing between the two transducer sets in response to a control current.