公开(公告)号：US11646057B2

公开(公告)日：2023-05-09

申请号：US17409927

申请日：2021-08-24

Applicant: Seagate Technology LLC

Inventor： Zheng Wang ,  Ara Patapoutian ,  Timothy F. Ellis ,  Jason Bellorado ,  William M. Radich

IPC: G11B5/60 ,  G11B20/12 ,  G11B20/10 ,  G11B5/596 ,  G11B5/55

CPC classification number: G11B5/6029 ,  G11B5/5565 ,  G11B5/59622 ,  G11B5/607 ,  G11B20/10518 ,  G11B20/1258

Abstract: Two or more data values are received from one or more sensors of a hard disk drive. The two or more data values are indicative of a fly height of a recording head of the hard disk drive. The two or more data values are input into a machine-learning processor during operation of the hard disk drive. A fly height of the recording head during the operation of the hard drive head is adjusted based on an output of the machine learning processor.

公开(公告)号：US20230062615A1

公开(公告)日：2023-03-02

申请号：US17409927

申请日：2021-08-24

Applicant: Seagate Technology LLC

Inventor： Zheng Wang ,  Ara Patapoutian ,  Timothy F. Ellis ,  Jason Bellorado ,  William M. Radich

IPC: G11B5/60 ,  G06N3/08 ,  G11B5/55 ,  G11B20/10 ,  G11B5/596 ,  G11B20/12

Abstract: Two or more data values are received from one or more sensors of a hard disk drive. The two or more data values are indicative of a fly height of a recording head of the hard disk drive. The two or more data values are input into a machine-learning processor during operation of the hard disk drive. A fly height of the recording head during the operation of the hard drive head is adjusted based on an output of the machine learning processor

公开(公告)号：US09865291B1

公开(公告)日：2018-01-09

申请号：US15601019

申请日：2017-05-22

Applicant: Seagate Technology LLC

Inventor： Puskal Prasad Pokharel ,  Gary E. Hillukka ,  Timothy F. Ellis

IPC: G11B5/09 ,  G11B5/58 ,  G11B5/596

CPC classification number: G11B5/59688 ,  G11B5/59616

Abstract: First and second read channel logic circuits are configured to process first and second signals communicated from respective first and second readers that simultaneously read from a magnetic disk. A first servo detection circuit generates a primary servo gate based on timing data from the first reader. The primary servo gate is used for processing the first signal via the first read channel logic. A second servo detection circuit that generates a secondary servo gate based on the primary servo gate and an adjustment value. The secondary servo gate is used for processing the second signal via the second read channel logic.