公开(公告)号：US20140268406A1

公开(公告)日：2014-09-18

申请号：US13844643

申请日：2013-03-15

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： CheeWee Cheng ,  Subhash Guddati ,  ShengYuan Lin ,  Andy Chou ,  SweeChuan Samuel Gan ,  Stefan Ionescu ,  Scott Ryun ,  Richard Martin ,  Jesse Speckhard

IPC: G11B5/60

CPC classification number: G11B5/607 ,  G11B5/6076

Abstract: Apparatus and method for positional sensing and control. In accordance with some embodiments, a transducer is positioned adjacent a recording medium. The transducer includes a write element, a read element, a heater and a thermally responsive sensor. Power is applied to the heater to establish a selected fly height of the transducer relative to the medium. A contact event between the transducer and the medium is detected responsive to an accumulated plural count of pulses in a bias signal obtained from the thermally responsive sensor.

Abstract translation: 用于位置检测和控制的装置和方法。 根据一些实施例，换能器邻近记录介质定位。 换能器包括写入元件，读取元件，加热器和热响应传感器。 将功率施加到加热器以建立换能器相对于介质的选定的飞行高度。 响应于从热响应传感器获得的偏置信号中累积的多个脉冲计数来检测换能器和介质之间的接触事件。

公开(公告)号：US08837076B1

公开(公告)日：2014-09-16

申请号：US13844643

申请日：2013-03-15

Applicant: Seagate Technology LLC

Inventor： CheeWee Cheng ,  Subhash Guddati ,  ShengYuan Lin ,  Andy Chou ,  SweeChuan Samuel Gan ,  Stefan Ionescu ,  Scott Ryun ,  Richard Martin ,  Jesse Speckhard

IPC: G11B21/02 ,  G11B5/60

CPC classification number: G11B5/607 ,  G11B5/6076

Abstract: Apparatus and method for positional sensing and control. In accordance with some embodiments, a transducer is positioned adjacent a recording medium. The transducer includes a write element, a read element, a heater and a thermally responsive sensor. Power is applied to the heater to establish a selected fly height of the transducer relative to the medium. A contact event between the transducer and the medium is detected responsive to an accumulated plural count of pulses in a bias signal obtained from the thermally responsive sensor.

Abstract translation: 用于位置检测和控制的装置和方法。 根据一些实施例，换能器邻近记录介质定位。 换能器包括写入元件，读取元件，加热器和热响应传感器。 将功率施加到加热器以建立换能器相对于介质的选定的飞行高度。 响应于从热响应传感器获得的偏置信号中累积的多个脉冲计数来检测换能器和介质之间的接触事件。