公开(公告)号：US20230360676A1

公开(公告)日：2023-11-09

申请号：US17735380

申请日：2022-05-03

Applicant: Seagate Technology LLC

Inventor： Tze Ming Pang ,  MingZhong Ding ,  ChanFan Lau ,  Chi Sern Tan ,  Ye HaiBo

IPC: G11B19/04 ,  G11B5/48

CPC classification number: G11B19/047 ,  G11B5/4813 ,  G11B5/486

Abstract: Systems and methods are disclosed for an actuator device or actuator control device to implement a low power savings mode. For example, a device can comprise an actuator arm including a first actuator and a second actuator, the second actuator configured to refine a movement of the actuator arm to a more precise position than use of merely the first actuator. A device can also comprise a control system configured to determine when the device is in an idle state and, when the device is in the idle state, disable the second actuator and perform a positional seek operation with the second actuator disabled. Power savings can occur from disabling the second actuator, which may also include disabling associated circuitry, such that it does not consume power or consumes a nominal (e.g., negligible or insignificant) amount of power during the associated seek operation.

公开(公告)号：US10318173B2

公开(公告)日：2019-06-11

申请号：US15281857

申请日：2016-09-30

Applicant: Seagate Technology LLC

Inventor： Kian Keong Ooi ,  Utt Heng Kan ,  Qiang Bi ,  Chi Sern Tan

IPC: G06F3/06 ,  G11B19/28 ,  G06F12/0866 ,  G06F12/0875

Abstract: Apparatus and method for managing data transfers in a data storage device with rotational media that can be rotated at different speeds. In some embodiments, a non-volatile main memory is formed on a rotatable medium accessed by a moveable data transducer. A media cache provides a non-volatile data storage area. A control circuit directs writes to the main memory as the medium is rotated at a first speed and directs reads from the main memory as the medium is rotated at a higher, second speed. Writes during the rotation of the medium at the second speed are directed to the media cache instead of to the main memory so that no data are written to the main memory at the second speed. The media cache may also be located on the medium or may be formed from solid-state semiconductor memory.

公开(公告)号：US11790947B1

公开(公告)日：2023-10-17

申请号：US17735380

申请日：2022-05-03

Applicant: Seagate Technology LLC

Inventor： Tze Ming Pang ,  MingZhong Ding ,  ChanFan Lau ,  Chi Sern Tan ,  Ye HaiBo

IPC: G11B19/04 ,  G11B5/48

CPC classification number: G11B19/047 ,  G11B5/486 ,  G11B5/4813

Abstract: Systems and methods are disclosed for an actuator device or actuator control device to implement a low power savings mode. For example, a device can comprise an actuator arm including a first actuator and a second actuator, the second actuator configured to refine a movement of the actuator arm to a more precise position than use of merely the first actuator. A device can also comprise a control system configured to determine when the device is in an idle state and, when the device is in the idle state, disable the second actuator and perform a positional seek operation with the second actuator disabled. Power savings can occur from disabling the second actuator, which may also include disabling associated circuitry, such that it does not consume power or consumes a nominal (e.g., negligible or insignificant) amount of power during the associated seek operation.

公开(公告)号：US20180095673A1

公开(公告)日：2018-04-05

申请号：US15281857

申请日：2016-09-30

Applicant: Seagate Technology LLC

Inventor： Kian Keong Ooi ,  Utt Heng Kan ,  Qiang Bi ,  Chi Sern Tan

IPC: G06F3/06 ,  G06F12/0871 ,  G11B19/28

CPC classification number: G06F3/0611 ,  G06F3/0656 ,  G06F3/068 ,  G06F12/0866 ,  G06F12/0875 ,  G06F2212/217 ,  G06F2212/222 ,  G06F2212/224 ,  G11B19/28

Abstract: Apparatus and method for managing data transfers in a data storage device with rotational media that can be rotated at different speeds. In some embodiments, a non-volatile main memory is formed on a rotatable medium accessed by a moveable data transducer. A media cache provides a non-volatile data storage area. A control circuit directs writes to the main memory as the medium is rotated at a first speed and directs reads from the main memory as the medium is rotated at a higher, second speed. Writes during the rotation of the medium at the second speed are directed to the media cache instead of to the main memory so that no data are written to the main memory at the second speed. The media cache may also be located on the medium or may be formed from solid-state semiconductor memory.