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1. 发明授权

US08810952B2 Head transducer with multiple resistance temperature sensors for head-medium spacing and contact detection 有权
标题翻译：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。

2. 发明申请

US20120120522A1 Head Transducer with Multiple Resistance Temperature Sensors for Head-Medium Spacing and Contact Detection 有权
标题翻译：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
IPC分类号： G11B5/455 , G11B21/12
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。

3. 发明授权

US09082440B2 Using first and second resistive sensor bias levels to detect head-to-disk contact and/or clearance 有权
标题翻译：使用第一和第二电阻传感器偏置电平来检测磁头到磁盘的接触和/或间隙
公开(公告)号：US09082440B2
公开(公告)日：2015-07-14
申请号：US13555581
申请日：2012-07-23
申请人： Michael Thomas Johnson , Manuel Charles Anaya Dufresne , Xuan Zheng , Dongming Liu
发明人： Michael Thomas Johnson , Manuel Charles Anaya Dufresne , Xuan Zheng , Dongming Liu
IPC分类号： G01N25/00 , G01K13/00 , G01K1/00 , G01K7/00 , G11B5/60
CPC分类号： G11B5/607 , G11B5/6076
摘要： A bias signal is applied to a resistive thermal sensor located proximate a magnetic media reading surface of a magnetic sensor. The bias signal is modulated between first and second bias levels. First and second resistances of the resistive thermal sensor corresponding to the first and second bias levels are measured. Based a difference between the first and second resistances caused by in increase in thermal conductivity between the magnetic sensor and a medium as the magnetic head gets closer to the medium, at least one of a spacing and a contact between the magnetic sensor and the medium are determined.
摘要翻译：偏置信号被施加到位于磁传感器的磁性介质读取表面附近的电阻式热传感器。偏置信号在第一和第二偏置电平之间调制。测量对应于第一和第二偏置电平的电阻热传感器的第一和第二电阻。基于随着磁头更靠近介质，磁传感器和介质之间的热传导性的增加而引起的第一和第二电阻之间的差异，磁传感器和介质之间的间隔和接触中的至少一个是决心。

4. 发明申请

US20140023108A1 USING FIRST AND SECOND RESISTIVE SENSOR BIAS LEVELS TO DETECT HEAD-TO-DISK CONTACT AND/OR CLEARANCE 有权
标题翻译：使用第一和第二电阻传感器偏置水平检测头盘接触和/或间隙
公开(公告)号：US20140023108A1
公开(公告)日：2014-01-23
申请号：US13555581
申请日：2012-07-23
申请人： Michael Thomas Johnson , Manuel Charles Anaya Dufresne , Xuan Zheng , Dongming Liu
发明人： Michael Thomas Johnson , Manuel Charles Anaya Dufresne , Xuan Zheng , Dongming Liu
IPC分类号： G01N25/00
CPC分类号： G11B5/607 , G11B5/6076
摘要： A bias signal is applied to a resistive thermal sensor located proximate a magnetic media reading surface of a magnetic sensor. The bias signal is modulated between first and second bias levels. First and second resistances of the resistive thermal sensor corresponding to the first and second bias levels are measured. Based a difference between the first and second resistances caused by in increase in thermal conductivity between the magnetic sensor and a medium as the magnetic head gets closer to the medium, at least one of a spacing and a contact between the magnetic sensor and the medium are determined.
摘要翻译：偏置信号被施加到位于磁传感器的磁性介质读取表面附近的电阻式热传感器。偏置信号在第一和第二偏置电平之间调制。测量对应于第一和第二偏置电平的电阻热传感器的第一和第二电阻。基于随着磁头更靠近介质，磁传感器和介质之间的热传导性的增加而引起的第一和第二电阻之间的差异，磁传感器和介质之间的间隔和接触中的至少一个是决心。

5. 发明授权

US08523312B2 Detection system using heating element temperature oscillations 有权
标题翻译：检测系统采用加热元件温度振荡
公开(公告)号：US08523312B2
公开(公告)日：2013-09-03
申请号：US12941461
申请日：2010-11-08
申请人： Xuan Zheng , Timothy William Stoebe
发明人： Xuan Zheng , Timothy William Stoebe
IPC分类号： G11B21/21
CPC分类号： G11B27/36 , B41J2/355 , G11B5/607 , G11B5/6076
摘要： A data storage system includes a recording head and a compensating resistor. The recording head has a heating element. The compensating resistor is in electrical series with the heating element and is external to the recording head. A method includes applying an alternating current at a first angular frequency to a recording head. A voltage drop across the recording head heating element is measured. A component of the voltage drop is extracted. The component has a frequency that is three times the frequency of the first angular frequency.
摘要翻译：数据存储系统包括记录头和补偿电阻。记录头具有加热元件。补偿电阻器与加热元件电连接并且在记录头的外部。一种方法包括将第一角频率的交流电应用于记录头。测量记录头加热元件两端的电压降。提取电压降的分量。该分量的频率是第一角频率的三倍。

6. 发明授权

US08160053B2 Method, apparatus and network element for clock tracing 有权
标题翻译：时钟跟踪的方法，设备和网元
公开(公告)号：US08160053B2
公开(公告)日：2012-04-17
申请号：US12547016
申请日：2009-08-25
申请人： Kuiwen Ji , Junjie Feng , Min Zhao , Xinghua Shi , Xuan Zheng
发明人： Kuiwen Ji , Junjie Feng , Min Zhao , Xinghua Shi , Xuan Zheng
IPC分类号： H04J3/06
CPC分类号： H04J3/0679
摘要： A clock tracing method includes: determining a shortest path to each source network element, and selecting a best source network element among all the source network elements; determining a shortest path to the best source network element according to the shortest path, using the shortest path to the best source network element as a clock tracing path if the shortest path to the best source network element is different from an old clock tracing path and a traceable message is received, and using the clock tracing path for tracing clocks; and using the old clock tracing path for tracing clocks if the shortest path to the best source network element is the same as the old clock tracing path or no traceable message is received. A clock tracing apparatus and a network element are also provided. The provided clock tracing method, apparatus and network element may ensure high-quality clock transmission, and the fast performance of automatic clock tracing.
摘要翻译：时钟跟踪方法包括：确定到每个源网元的最短路径，以及在所有源网元中选择最佳源网元; 根据最短路径确定到最佳源网络元件的最短路径，如果到最佳源网络元件的最短路径不同于旧时钟跟踪路径，则使用到最佳源网元的最短路径作为时钟跟踪路径，以及接收到可跟踪的消息，并使用时钟跟踪路径来跟踪时钟; 并且如果到最佳源网络元件的最短路径与旧时钟跟踪路径相同或者没有接收到可跟踪消息，则使用旧时钟跟踪路径来跟踪时钟。还提供了时钟跟踪装置和网络元件。提供的时钟跟踪方法，设备和网元可以保证高质量的时钟传输，并能快速实现自动时钟跟踪。

7. 发明授权

US07852863B2 System and methods for connections using automatically switched optical network control planes 有权
标题翻译：使用自动切换光网络控制平面的连接的系统和方法
公开(公告)号：US07852863B2
公开(公告)日：2010-12-14
申请号：US11961124
申请日：2007-12-20
申请人： Vagish Madrahalli , Kelai Shi , Xuan Zheng , Zhiwei Rong , Bhavesh Nisar
发明人： Vagish Madrahalli , Kelai Shi , Xuan Zheng , Zhiwei Rong , Bhavesh Nisar
IPC分类号： H04L12/28
CPC分类号： H04Q11/0062 , H04Q2011/0073 , H04Q2011/0079
摘要： Systems and methods for connections on an Automatically Switched Optical Network (ASON) network including an ASON database and path computation algorithm, mechanisms for Ethernet connections over ASON, and mechanisms for label negotiation for SNCs are provided. Advantageously, the present invention provides mechanisms for ASON path computation and virtual topology management, Ethernet connection establishment, modification, and deletion in ASON networks, and label negotiation without requiring binding and releasing of connections before label negotiation.
摘要翻译：提供了包括ASON数据库和路径计算算法在内的自动交换光网络（ASON）网络上的连接系统和方法，以及ASON上的以太网连接机制以及SNC标签协商机制。有利地，本发明提供ASON路径计算和虚拟拓扑管理，ASON网络中的以太网连接建立，修改和删除以及标签协商的机制，而不需要在标签协商之前绑定和释放连接。

8. 发明授权

US08792311B2 Transducer head temperature monitoring 有权
标题翻译：传感器头温度监控
公开(公告)号：US08792311B2
公开(公告)日：2014-07-29
申请号：US13023198
申请日：2011-02-08
申请人： Xuan Zheng , Timothy William Stoebe , Jorge Hanchi , Kaizhong Gao
发明人： Xuan Zheng , Timothy William Stoebe , Jorge Hanchi , Kaizhong Gao
IPC分类号： G11B11/00
CPC分类号： G11B5/607 , G11B5/6076 , G11B5/6088 , G11B2005/0021
摘要： Changes in the thermal boundary condition near a close point of an ABS to a media indicate proximity of the ABS with the media. Before contact, heat conduction from the ABS is primarily through convective and/or ballistic heat transfer to air between the ABS and the media. After contact, heat flux primarily flows from the ABS to the media through solid-solid conductive contact. Further, a light source within a HAMR transducer head may create additional thermal variations within the transducer head. These thermal variations create temperature variations within the transducer head. Two resistance temperature sensors on the transducer head at varying distances from the close point and/or light source measure these temperature variations. A temperature difference between the two resistance temperature sensors indicates proximity of the close point to the media and/or light output.
摘要翻译： ABS附近接近介质的热边界条件的变化指示ABS与介质的接近。在接触之前，ABS的热传导主要是通过ABS和介质之间的空气对流和/或弹道传热。接触后，热通量主要通过固体导电接触从ABS流动到介质。此外，HAMR换能器头内的光源可能在换能器头内产生额外的热变化。这些热变化会导致传感器头内的温度变化。传感器头上距离近点和/或光源不同距离的两个电阻温度传感器可测量这些温度变化。两个电阻温度传感器之间的温差指示接近于介质和/或光输出的接近点。

9. 发明申请

US20120113207A1 DETECTION SYSTEM USING HEATING ELEMENT TEMPERATURE OSCILLATIONS 有权
标题翻译：使用加热元件温度振荡的检测系统
公开(公告)号：US20120113207A1
公开(公告)日：2012-05-10
申请号：US12941461
申请日：2010-11-08
申请人： Xuan Zheng
发明人： Xuan Zheng
IPC分类号： B41J2/335
CPC分类号： G11B27/36 , B41J2/355 , G11B5/607 , G11B5/6076
摘要： A data storage system includes a recording head and a compensating resistor. The recording head has a heating element. The compensating resistor is in electrical series with the heating element and is external to the recording head. A method includes applying an alternating current at a first angular frequency to a recording head. A voltage drop across the recording head heating element is measured. A component of the voltage drop is extracted. The component has a frequency that is three times the frequency of the first angular frequency.
摘要翻译：数据存储系统包括记录头和补偿电阻。记录头具有加热元件。补偿电阻器与加热元件电连接并且在记录头的外部。一种方法包括将第一角频率的交流电应用于记录头。测量记录头加热元件两端的电压降。提取电压降的分量。该分量的频率是第一角频率的三倍。

10. 发明申请

US20100020787A1 METHOD, APPARATUS AND NETWORK ELEMENT FOR CLOCK TRACING 有权
标题翻译：用于时钟跟踪的方法，装置和网络元件
公开(公告)号：US20100020787A1
公开(公告)日：2010-01-28
申请号：US12547016
申请日：2009-08-25
申请人： Kuiwen JI , Junjie Feng , Min Zhao , Xinghua Shi , Xuan Zheng
发明人： Kuiwen JI , Junjie Feng , Min Zhao , Xinghua Shi , Xuan Zheng
IPC分类号： H04L12/28
CPC分类号： H04J3/0679
摘要： A clock tracing method includes: determining a shortest path to each source network element, and selecting a best source network element among all the source network elements; determining a shortest path to the best source network element according to the shortest path, using the shortest path to the best source network element as a clock tracing path if the shortest path to the best source network element is different from an old clock tracing path and a traceable message is received, and using the clock tracing path for tracing clocks; and using the old clock tracing path for tracing clocks if the shortest path to the best source network element is the same as the old clock tracing path or no traceable message is received. A clock tracing apparatus and a network element are also provided. The provided clock tracing method, apparatus and network element may ensure high-quality clock transmission, and the fast performance of automatic clock tracing.
摘要翻译：时钟跟踪方法包括：确定到每个源网元的最短路径，以及在所有源网元中选择最佳源网元; 根据最短路径确定到最佳源网络元件的最短路径，如果到最佳源网络元件的最短路径不同于旧时钟跟踪路径，则使用到最佳源网元的最短路径作为时钟跟踪路径，以及接收到可跟踪的消息，并使用时钟跟踪路径来跟踪时钟; 并且如果到最佳源网络元件的最短路径与旧时钟跟踪路径相同或者没有接收到可跟踪消息，则使用旧时钟跟踪路径来跟踪时钟。还提供了时钟跟踪装置和网络元件。提供的时钟跟踪方法，设备和网元可以保证高质量的时钟传输，并能快速实现自动时钟跟踪。

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