公开(公告)号：US09761268B1

公开(公告)日：2017-09-12

申请号：US14094235

申请日：2013-12-02

Applicant: Seagate Technology LLC

Inventor： Jon David Trantham ,  Rodney Blake ,  William Radich

IPC: G11B20/14 ,  G11B20/10 ,  G11B5/09

CPC classification number: G11B20/14 ,  G11B5/09 ,  G11B20/10194 ,  G11B20/10398

Abstract: A circuit may be configured to precompensate the storage of data on a storage device. The magnitude and polarity of the precompensated time adjustment can be determined by looking up data patterns of storage regions in a table. A boundary can include storage regions of the device used to determine the precompensation.

公开(公告)号：US20170162222A1

公开(公告)日：2017-06-08

申请号：US14957220

申请日：2015-12-02

Applicant: Seagate Technology LLC

Inventor： Robert Matousek ,  Todd Lammers ,  Jon David Trantham

IPC: G11B11/105

CPC classification number: G11B11/10534 ,  G11B5/314 ,  G11B5/40 ,  G11B5/455 ,  G11B7/126 ,  G11B7/1263 ,  G11B7/1267 ,  G11B7/13 ,  G11B11/10595 ,  G11B19/046 ,  G11B2005/0021

Abstract: Methods and apparatuses for detecting mode hopping in a laser diode or other optical energy source in heat-assisted magnetic recording. An output power of the laser diode or other optical energy source is measured and the output power is differentiated over time to determine a rate of change. If it is determined that the rate of change exceeds a threshold value, a fault signal is asserted indicating a potential mode hopping event.

公开(公告)号：US20150279419A1

公开(公告)日：2015-10-01

申请号：US14228749

申请日：2014-03-28

Applicant: Seagate Technology LLC

Inventor： Jon David Trantham ,  William M. Radich ,  Jason Gadbois ,  Barmeshwar Vikramaditya

IPC: G11B20/18 ,  G11B27/36

CPC classification number: G11B20/182 ,  G11B5/09 ,  G11B5/607 ,  G11B20/1816 ,  G11B20/1889 ,  G11B2005/0021 ,  G11B2020/1826

Abstract: Apparatus and method for detecting media defects using a multi-sensor transducer. In some embodiments, a first pattern is written to a first track on a rotatable storage media and a second pattern is written to a second track on the media. A first read sensor of a multi-sensor transducer senses the first pattern from the first track and a second read sensor of the multi-sensor transducer concurrently senses the second pattern from the second track. At least one storage media defect is detected responsive to the sensed first and second patterns.

Abstract translation: 使用多传感器传感器检测介质缺陷的装置和方法。 在一些实施例中，将第一图案写入可旋转存储介质上的第一轨道，并将第二图案写入到介质上的第二轨道。 多传感器换能器的第一读取传感器感测来自第一轨道的第一图案，并且多传感器换能器的第二读取传感器同时从第二轨迹感测第二图案。 响应于所感测的第一和第二图案来检测至少一个存储介质缺陷。

公开(公告)号：US08766707B1

公开(公告)日：2014-07-01

申请号：US13844479

申请日：2013-03-15

Applicant: Seagate Technology LLC

Inventor： Scott Thomas Younger ,  Jon David Trantham

IPC: H03K3/01

CPC classification number: H03K19/0016 ,  G06F1/3243 ,  G06F1/3268 ,  G06F1/3287 ,  Y02D10/152 ,  Y02D10/154 ,  Y02D10/171 ,  Y02D50/20

Abstract: Apparatus and method for supplying electrical power to a device. A system on chip (SOC) integrated circuit includes a first region having a processing core and a second region characterized as an always on domain (AOD) power island electrically isolated from the first region and having a power control block. A first power supply module is used to apply power to the first region, and a second power supply module is used to apply power to the second region. The second power supply module includes a main switch between the first power supply module and a host input voltage terminal. The power control block initiates a low power mode by transitioning the main switch to an open state. This causes the first region to receive no electrical power while the second region continuously receives power during the low power mode.

Abstract translation: 用于向设备供电的设备和方法。 片上系统（SOC）集成电路包括具有处理核心的第一区域和第二区域，其特征在于与第一区域电隔离并具有功率控制块的始终开启（AOD）功率岛。 第一电源模块用于向第一区域施加电力，并且第二电源模块用于向第二区域施加电力。 第二电源模块包括在第一电源模块和主机输入电压端子之间的主开关。 功率控制块通过将主开关转换到打开状态来启动低功耗模式。 这导致第一区域不接收电力，而第二区域在低功率模式期间连续地接收电力。