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    Clearance sensor and circuitry using adjustable channel parameters
    11.
    发明授权
    Clearance sensor and circuitry using adjustable channel parameters 有权
    间隙传感器和使用可调节通道参数的电路

    公开(公告)号：US09123372B2

    公开(公告)日：2015-09-01

    申请号：US14457518

    申请日：2014-08-12

    Applicant: Seagate Technology LLC

    Inventor： Housan Dakroub ,  Edward Charles Gage ,  Tim Rausch

    IPC: G11B11/00 ,  G11B5/09 ,  G11B5/60 ,  G11B11/105 ,  G11B20/10

    CPC classification number: G11B5/6076 ,  G11B5/6005 ,  G11B5/607 ,  G11B11/10554 ,  G11B20/10009

    Abstract: A transducer is configured to interact with a magnetic storage medium, a first channel comprises a first sensor and first circuitry configured to adjust a plurality of first channel parameters, and a second channel comprises a second sensor and second circuitry configured to adjust a plurality of second channel parameters. The first and second channel parameters are independently adjustable by the first and second circuitry, respectively. A detector is coupled to the first and second channels, and configured to detect a head-medium interface event.

    Abstract translation: 换能器被配置为与磁存储介质相互作用，第一通道包括第一传感器和配置成调整多个第一通道参数的第一电路，第二通道包括第二传感器和第二电路，其被配置为调整多个第二通道参数 通道参数。 第一和第二通道参数分别由第一和第二电路独立地调节。 检测器耦合到第一和第二通道，并且被配置为检测头 - 介质接口事件。

    COOLING PERIODS USED DURING THE WRITING OF BIT BOUNDARIES TO A MAGNETIC RECORDING MEDIA
    12.
    发明申请
    COOLING PERIODS USED DURING THE WRITING OF BIT BOUNDARIES TO A MAGNETIC RECORDING MEDIA 有权
    在将边界书面写入磁记录介质时使用的冷却时段

    公开(公告)号：US20150170699A1

    公开(公告)日：2015-06-18

    申请号：US14104676

    申请日：2013-12-12

    Applicant: Seagate Technology LLC

    Inventor： Housan Dakroub ,  Edward Charles Gage ,  Jan-Ulrich Thiele

    IPC: G11B7/1263

    CPC classification number: G11B5/02 ,  G11B7/1263 ,  G11B2005/0021

    Abstract: Polarity transitions of a write signal applied to a write coil correspond to first bit boundaries written to a magnetic recording media. A heat signal is applied to heat the magnetic recording media via a heat source while bits are being written. The heat signal includes negative pulses that de-energize the heat source during cooling periods corresponding to the writing of the first bit boundaries. The negative pulses are offset from the polarity transitions by a predetermined time.

    Abstract translation: 施加到写入线圈的写信号的极性转变对应于写入磁记录介质的第一位边界。 当写入位时，通过加热信号加热磁记录介质。 热信号包括在对应于第一位边界的写入的冷却期间使热源断电的负脉冲。 负脉冲从极性转变偏移预定时间。

    Variable bit aspect ratios in magnetic media
    14.
    发明授权
    Variable bit aspect ratios in magnetic media 有权
    磁介质中的可变比特长宽比

    公开(公告)号：US08842503B1

    公开(公告)日：2014-09-23

    申请号：US13921676

    申请日：2013-06-19

    Applicant: Seagate Technology LLC

    Inventor： Tim Rausch ,  Edward Charles Gage

    IPC: G11B11/00 ,  G11B13/04

    CPC classification number: G11B20/1217 ,  G11B5/012 ,  G11B5/09 ,  G11B2005/0021

    Abstract: An apparatus comprises a write transducer, an energy source, and a controller. The write transducer is configured to write data to a magnetic recording medium, and the energy source is configured to heat the magnetic recording medium while it is being written to by the write transducer. The controller is coupled to the write transducer and configured to adjust at least an operating power of the energy source to selectably cause bits having variable bit aspect ratios to be written to the magnetic media.

    Abstract translation: 一种装置包括写入传感器，能量源和控制器。 写入传感器被配置为将数据写入磁记录介质，并且能量源被配置为在被写入传感器写入时加热磁记录介质。 控制器耦合到写换能器并且被配置为至少调整能量源的工作功率，以可选择地使得具有可变位长宽比的位被写入到磁介质。

    WAVEGUIDE WITH PHASE SHIFTING PORTIONS
    15.
    发明申请
    WAVEGUIDE WITH PHASE SHIFTING PORTIONS 有权
    带相移位置的波形

    公开(公告)号：US20140254335A1

    公开(公告)日：2014-09-11

    申请号：US13789158

    申请日：2013-03-07

    Applicant: SEAGATE TECHNOLOGY LLC

    Inventor： Edward Charles Gage ,  Chubing Peng

    IPC: G11B13/08

    CPC classification number: G11B5/6088 ,  G02B6/1226 ,  G11B5/314 ,  G11B5/4866 ,  G11B13/08 ,  G11B2005/0021

    Abstract: An apparatus includes a plasmonic transducer with first and second oppositely disposed outer edges. A waveguide is configured to receive light from a light source, the waveguide have first and second portions that deliver first and second portions of the light to the first and second edges of the plasmonic transducer. The first and second portions are different by at least one of a geometry and a construction to cause a relative phase shift between the first and second portions of the light.

    Abstract translation: 一种装置包括具有第一和第二相对布置的外边缘的等离子体激元传感器。 波导被配置为从光源接收光，波导具有将光的第一和第二部分传递到等离子体激元传感器的第一和第二边缘的第一和第二部分。 第一和第二部分由导致光的第一和第二部分之间的相对相移的几何形状和结构中的至少一个而不同。

    NEAR-FIELD TRANSDUCER
    16.
    发明申请
    NEAR-FIELD TRANSDUCER 有权
    近场传感器

    公开(公告)号：US20140226450A1

    公开(公告)日：2014-08-14

    申请号：US14253014

    申请日：2014-04-15

    Applicant: Seagate Technology LLC

    Inventor： Chubing Peng ,  Edward Charles Gage ,  Yongjun Zhoa

    IPC: G11B13/08

    CPC classification number: G11B13/08 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

    Abstract: An apparatus includes a waveguide core having an elongated edge parallel to a substrate plane of the apparatus. An output end of the waveguide core faces a media-facing surface of the apparatus. A plate-like portion of a plasmonic material has a major surface facing the elongated edge of the waveguide core, and the major surface has a narrowed output end facing the media-facing surface. An elongated ridge of the plasmonic material is disposed on at least part of the plate-like portion between an input end and the narrowed output end.

    Abstract translation: 一种装置包括具有平行于装置的基板平面的细长边缘的波导芯。 波导芯的输出端面向设备的面向媒体的表面。 等离子体激元材料的板状部分具有面向波导芯的细长边缘的主表面，并且主表面具有面向介质相对表面的变窄的输出端。 等离激元材料的细长脊线设置在输入端和变窄的输出端之间的板状部分的至少一部分上。

    LIGHT DELIVERY WAVEGUIDE
    18.
    发明申请
    LIGHT DELIVERY WAVEGUIDE 有权
    光交付波导

    公开(公告)号：US20130230279A1

    公开(公告)日：2013-09-05

    申请号：US13774383

    申请日：2013-02-22

    Applicant: SEAGATE TECHNOLOGY LLC

    Inventor： Chubing Peng ,  Edward Charles Gage ,  Kalman Pelhos

    IPC: G11B11/24 ,  G02B5/10 ,  G02B6/26

    CPC classification number: G11B11/24 ,  G02B5/10 ,  G02B6/26 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/001 ,  G11B2005/0021

    Abstract: A light source and a waveguide are mounted on a recording head slider. Light rays are emitted from the light source into the waveguide. The waveguide may include two core layers for light ray transmission. The first core layer enhances light coupling efficiency from the light source to the second core layer. The second core layer transforms a profile of the light. The waveguide may include a tapered portion with a narrow opening near the light source and a wider opening near the tapered portion exit. The light rays passing through the waveguide may be directed toward a collimating mirror. The collimating mirror makes the light rays parallel or nearly parallel and re-directs the light rays to a focusing mirror. The focusing mirror focuses the collimated light rays to a spot on a magnetic media disc.

    Abstract translation: 光源和波导安装在记录头滑块上。 光线从光源发射到波导中。 波导可以包括用于光线透射的两个核心层。 第一核心层增强了从光源到第二核心层的光耦合效率。 第二核心层转换光的轮廓。 波导可以包括在光源附近具有窄开口的锥形部分和在锥形部分出口附近的较宽开口。 穿过波导的光线可以指向准直镜。 准直镜使光线平行或接近平行，并将光线重新引导到聚焦镜。 聚焦镜将准直光线聚焦到磁性介质盘上的一个点上。

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