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1.发明授权Head transducer with multiple resistance temperature sensors for head-medium spacing and contact detection 有权头传感器，具有多个电阻温度传感器，用于头中间距和接触检测公开(公告)号：US08810952B2
公开(公告)日：2014-08-19
申请号：US13299139
申请日：2011-11-17
申请人： Michael T. Johnson , Dongming Liu , Huazhou Lou , Declan Macken , Timothy W. Stoebe , James G. Wessel , Xuan Zheng
发明人： Michael T. Johnson , Dongming Liu , Huazhou Lou , Declan Macken , Timothy W. Stoebe , James G. Wessel , Xuan Zheng
IPC分类号： G11B21/02
CPC分类号： G11B5/607 , G01K13/00 , G11B5/024 , G11B5/3133 , G11B5/6011 , G11B5/6076 , G11B7/0948 , G11B7/121 , G11B20/10 , G11B27/36
摘要： A head transducer, configured to interact with a magnetic recording medium, includes a first sensor having a temperature coefficient of resistance (TCR) and configured to produce a first sensor signal, and a second sensor having a TCR and configured to produce a second sensor signal. One of the first and second sensors is situated at or near a close point of the head transducer in relation to the magnetic recording medium, and the other of the first and second sensors spaced away from the close point. Circuitry is configured to combine the first and second sensor signals and produce a combined sensor signal indicative of one or both of a change in head-medium spacing and head-medium contact. Each of the sensors may have a TCR with the same sign (positive or negative) or each sensor may have a TCR with a different sign.
摘要翻译： 被配置为与磁记录介质相互作用的头传感器包括具有温度系数电阻（TCR）并被配置为产生第一传感器信号的第一传感器，以及具有TCR并被配置为产生第二传感器信号的第二传感器 。 第一传感器和第二传感器中的一个位于头部换能器相对于磁记录介质的接近点附近，并且第一传感器和第二传感器中的另一个与近端点间隔开。 电路被配置为组合第一和第二传感器信号并产生指示头 - 介质间隔和头 - 介质接触的变化中的一个或两个的组合的传感器信号。 每个传感器可以具有相同符号（正或负）的TCR，或者每个传感器可以具有不同符号的TCR。
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2.发明申请Head Transducer with Multiple Resistance Temperature Sensors for Head-Medium Spacing and Contact Detection 有权头传感器，具有多个电阻温度传感器，用于头中间距和接触检测公开(公告)号：US20120120522A1
公开(公告)日：2012-05-17
申请号：US13299139
申请日：2011-11-17
申请人： Michael T. Johnson , Dongming Liu , Huazhou Lou , Declan Macken , Timothy W. Stoebe , James G. Wessel , Xuan Zheng
发明人： Michael T. Johnson , Dongming Liu , Huazhou Lou , Declan Macken , Timothy W. Stoebe , James G. Wessel , Xuan Zheng
CPC分类号： G11B5/607 , G01K13/00 , G11B5/024 , G11B5/3133 , G11B5/6011 , G11B5/6076 , G11B7/0948 , G11B7/121 , G11B20/10 , G11B27/36
摘要： A head transducer, configured to interact with a magnetic recording medium, includes a first sensor having a temperature coefficient of resistance (TCR) and configured to produce a first sensor signal, and a second sensor having a TCR and configured to produce a second sensor signal. One of the first and second sensors is situated at or near a close point of the head transducer in relation to the magnetic recording medium, and the other of the first and second sensors spaced away from the close point. Circuitry is configured to combine the first and second sensor signals and produce a combined sensor signal indicative of one or both of a change in head-medium spacing and head-medium contact. Each of the sensors may have a TCR with the same sign (positive or negative) or each sensor may have a TCR with a different sign.
摘要翻译： 被配置为与磁记录介质相互作用的头传感器包括具有温度系数电阻（TCR）并被配置为产生第一传感器信号的第一传感器，以及具有TCR并被配置为产生第二传感器信号的第二传感器 。 第一传感器和第二传感器中的一个位于头部换能器相对于磁记录介质的接近点附近，并且第一传感器和第二传感器中的另一个与近端点间隔开。 电路被配置为组合第一和第二传感器信号并产生指示头 - 介质间隔和头 - 介质接触的变化中的一个或两个的组合的传感器信号。 每个传感器可以具有相同符号（正或负）的TCR，或者每个传感器可以具有不同符号的TCR。
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公开(公告)号：US20120120519A1
公开(公告)日：2012-05-17
申请号：US13299094
申请日：2011-11-17
申请人： Gary J. Kunkel , Huazhou Lou , Declan Macken , Timothy W. Stoebe
发明人： Gary J. Kunkel , Huazhou Lou , Declan Macken , Timothy W. Stoebe
CPC分类号： G11B5/607 , G01K13/00 , G11B5/024 , G11B5/3133 , G11B5/6011 , G11B5/6076 , G11B7/0948 , G11B7/121 , G11B20/10 , G11B27/36
摘要： A temperature sensor of a head transducer measures temperature near or at the close point. The measured temperature varies in response to changes in spacing between the head transducer and a magnetic recording medium. A detector is coupled to the temperature sensor and is configured to detect a change in a DC component of the measured temperature indicative of onset of contact between the head transducer and the medium. Another head transducer configuration includes a sensor having a sensing element with a high temperature coefficient of resistance to interact with asperities of the medium. Electrically conductive leads are connected to the sensing element and have a low temperature coefficient of resistance relative to that of the sensing element, such thermally induced resistance changes in the leads have a negligible effect on a response of the sensing element to contact with the asperities.
摘要翻译： 头传感器的温度传感器测量靠近或接近的温度。 测量的温度响应于头部换能器和磁记录介质之间的间隔的变化而变化。 检测器耦合到温度传感器并且被配置为检测指示头部换能器和介质之间的接触开始的测量温度的DC分量的变化。 另一个头部传感器配置包括传感器，该传感器具有具有高温度系数的传感元件，以与介质的粗糙度相互作用。 导电引线连接到感测元件并且具有相对于感测元件的电阻的低温度系数，引线中的这种热感应电阻变化对感测元件与凹凸接触的响应具有可忽略的影响。
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公开(公告)号：US08737009B2
公开(公告)日：2014-05-27
申请号：US13299094
申请日：2011-11-17
申请人： Gary J. Kunkel , Huazhou Lou , Declan Macken , Timothy W. Stoebe
发明人： Gary J. Kunkel , Huazhou Lou , Declan Macken , Timothy W. Stoebe
IPC分类号： G11B21/02
CPC分类号： G11B5/607 , G01K13/00 , G11B5/024 , G11B5/3133 , G11B5/6011 , G11B5/6076 , G11B7/0948 , G11B7/121 , G11B20/10 , G11B27/36
摘要： A temperature sensor of a head transducer measures temperature near or at the close point. The measured temperature varies in response to changes in spacing between the head transducer and a magnetic recording medium. A detector is coupled to the temperature sensor and is configured to detect a change in a DC component of the measured temperature indicative of onset of contact between the head transducer and the medium. Another head transducer configuration includes a sensor having a sensing element with a high temperature coefficient of resistance to interact with asperities of the medium. Electrically conductive leads are connected to the sensing element and have a low temperature coefficient of resistance relative to that of the sensing element, such thermally induced resistance changes in the leads have a negligible effect on a response of the sensing element to contact with the asperities.
摘要翻译： 头传感器的温度传感器测量靠近或接近的温度。 测量的温度响应于头部换能器和磁记录介质之间的间隔的变化而变化。 检测器耦合到温度传感器并且被配置为检测指示头部换能器和介质之间的接触开始的测量温度的DC分量的变化。 另一个头部传感器配置包括传感器，该传感器具有具有高温度系数的传感元件，以与介质的粗糙度相互作用。 导电引线连接到感测元件并且具有相对于感测元件的电阻的低温度系数，引线中的这种热感应电阻变化对感测元件与凹凸接触的响应具有可忽略的影响。
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公开(公告)号：US20140063644A1
公开(公告)日：2014-03-06
申请号：US13598101
申请日：2012-08-29
CPC分类号： G11B5/3945 , G11B5/3958 , G11B5/4886 , G11B5/6029
摘要： An apparatus and generally associated method may be directed to a magnetic reader capable of concurrently or independently data access and environmental measurements. Various embodiments construct such a magnetic reader with first and second data transducing elements that are each adapted to selectively read data and measure clearance from an adjacent data storage media.
摘要翻译： 一种装置和一般相关联的方法可以针对能够同时或独立地进行数据访问和环境测量的磁读取器。 各种实施例构造具有第一和第二数据传感元件的这种磁读取器，每个数据传感元件适于选择性地读取数据并测量与相邻数据存储介质的间隙。
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公开(公告)号：US08553350B2
公开(公告)日：2013-10-08
申请号：US13117969
申请日：2011-05-27
申请人： Lin Zhou , Huazhou Lou , Dongming Liu , Vincent Bernard Engelkes
发明人： Lin Zhou , Huazhou Lou , Dongming Liu , Vincent Bernard Engelkes
IPC分类号： G11B21/02
CPC分类号： G11B5/607 , G11B5/6076
摘要： A system that is capable of monitoring tribological data, such as friction, in a data storage device. In accordance with various embodiments, a magnetoresistive head is separated from a rotating data storage media by an air bearing and attached to a slider that is adjusted through deformation controlled by a heating element. A measurement circuit concurrently monitors friction from the head and power applied to the heating element to determine an MR head clearance. The measurement circuit includes at least a phase filter that eliminates off-phase friction from contributing to the determination of the MR head clearance.
摘要翻译： 能够监视数据存储装置中摩擦学的摩擦学数据的系统。 根据各种实施例，磁阻头通过空气轴承与旋转数据存储介质分离，并附接到通过由加热元件控制的变形来调节的滑块。 测量电路同时监测来自头部的摩擦力和施加到加热元件的功率，以确定MR磁头间隙。 该测量电路至少包括一个相位滤波器，该相位滤波器消除非相位摩擦从而有助于确定MR磁头间隙。
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公开(公告)号：US20120300335A1
公开(公告)日：2012-11-29
申请号：US13117969
申请日：2011-05-27
申请人： Lin Zhou , Huazhou Lou , Dongming Liu , Vincent Bernard Engelkes
发明人： Lin Zhou , Huazhou Lou , Dongming Liu , Vincent Bernard Engelkes
IPC分类号： G11B5/02
CPC分类号： G11B5/607 , G11B5/6076
摘要： A system that is capable of monitoring tribological data, such as friction, in a data storage device. In accordance with various embodiments, a magnetoresistive head is separated from a rotating data storage media by an air bearing and attached to a slider that is adjusted through deformation controlled by a heating element. A measurement circuit concurrently monitors friction from the head and power applied to the heating element to determine an MR head clearance. The measurement circuit includes at least a phase filter that eliminates off-phase friction from contributing to the determination of the MR head clearance.
摘要翻译： 能够监视数据存储装置中摩擦学的摩擦学数据的系统。 根据各种实施例，磁阻头通过空气轴承与旋转数据存储介质分离，并附接到通过由加热元件控制的变形来调节的滑块。 测量电路同时监测来自头部的摩擦力和施加到加热元件的功率，以确定MR磁头间隙。 该测量电路至少包括一个相位滤波器，该相位滤波器消除非相位摩擦从而有助于确定MR磁头间隙。
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公开(公告)号：US20060187583A1
公开(公告)日：2006-08-24
申请号：US11061082
申请日：2005-02-18
IPC分类号： G11B5/41
CPC分类号： G11B5/314 , G11B5/3136 , G11B5/6005 , G11B5/607
摘要： The present invention provides a transducing device. The transducing device includes a transducing element. The transducing device further includes at least one heating element formed within the transducing device and spaced a sufficient distance from the transducing element to substantially reduce a temperature effect on the transducing element.
摘要翻译： 本发明提供一种换能装置。 换能装置包括换能元件。 换能装置还包括形成在换能装置内的至少一个加热元件，并与转换元件隔开足够的距离，以显着降低对换能元件的温度影响。
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公开(公告)号：US07038875B2
公开(公告)日：2006-05-02
申请号：US10631919
申请日：2003-07-31
申请人： Huazhou Lou , Zine-Eddine Boutaghou
发明人： Huazhou Lou , Zine-Eddine Boutaghou
IPC分类号： G11B21/02
CPC分类号： G11B5/6064 , G11B5/012 , G11B5/58 , G11B5/6029 , G11B21/21 , G11B2005/001
摘要： The present invention is a novel method and apparatus for determining head media modulation in a magnetic data storage and retrieval system. The magnetic data storage and retrieval system includes a magnetic disc with a stored signal and a transducing head for reading a readback signal based on the stored data. The system includes a data acquisition and processing circuit. The processing circuit generates a dynamic harmonic ratio for the readback signal. The processing circuit also generates a head media modulation signal as a function of time from the dynamic harmonic ratio.
摘要翻译： 本发明是一种用于确定磁数据存储和检索系统中的头部介质调制的新颖方法和装置。 磁数据存储和检索系统包括具有存储信号的磁盘和用于基于所存储的数据读取回读信号的转换头。 该系统包括数据采集和处理电路。 处理电路为回读信号产生动态谐波比。 处理电路还根据动态谐波比产生作为时间的函数的头媒体调制信号。
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公开(公告)号：US20190122302A1
公开(公告)日：2019-04-25
申请号：US15791318
申请日：2017-10-23
申请人： Huazhou Lou
发明人： Huazhou Lou
摘要： A method of making periodic retirement fund distributions executed automatically by a computer system comprises a predetermined start date, target end date and frequency of distribution that will provide the investor the exact time duration that the retirement funds will last. The method includes creating a periodic distribution schedule, calculating distribution percentage rate for each distribution, determining the shares to be sold at each distribution while maintaining the remaining funds fully invested. The total distribution time duration is predetermined and fixed. The distribution percentage rate is calculated to create a purchasing power equalized distribution amount in the entire distribution duration by factoring net investment return rate after inflation. The method also includes a cash buffering mechanism to smooth out market fluctuations while providing investment growth.
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