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1. 发明授权

US07417209B2 Recording disk drive with reduced noise thermal flyheight control 有权
标题翻译：记录磁盘驱动器，降低噪音热敏高度控制
公开(公告)号：US07417209B2
公开(公告)日：2008-08-26
申请号：US11361561
申请日：2006-02-24
申请人： John Contreras , Takashi Ikeda , Yumi Nagano , Nobumasa Nishiyama , Toyomi Ohsawa , Mike Suk
发明人： John Contreras , Takashi Ikeda , Yumi Nagano , Nobumasa Nishiyama , Toyomi Ohsawa , Mike Suk
IPC分类号： H05B1/02
CPC分类号： G11B5/4853 , G11B5/6005 , G11B5/6064
摘要： A system and method for preventing crosstalk noise from being superimposed on a read signal due to noise from a heater line for a slider in a recording disk drive is disclosed. A heater line pair to the slider is not grounded but is in a floating state with respect to an actuator support structure. A heater driver allows a heater current to flow between a positive power supply voltage and a negative power supply voltage. The heater line pair is not grounded, so an impedance is high as viewed from a magnetic disk. Thus, it is possible to effectively suppress a noise transmitted from the magnetic disk and read signal quality is kept from deteriorating due to the crosstalk from the heater line.
摘要翻译：公开了一种用于防止由于记录盘驱动器中的滑块的加热器线的噪声而引起的串扰噪声叠加在读信号上的系统和方法。与滑块相对的加热器线对不接地，而是相对于致动器支撑结构处于浮动状态。加热器驱动器允许加热器电流在正电源电压和负电源电压之间流动。加热线对不接地，因此从磁盘观察时阻抗较高。因此，可以有效地抑制从磁盘传递的噪声，并且由于来自加热器线的串扰，读取信号质量不会劣化。

2. 发明申请

US20070210070A1 Recording disk drive with reduced noise thermal flyheight control 有权
标题翻译：记录磁盘驱动器，降低噪音热敏高度控制
公开(公告)号：US20070210070A1
公开(公告)日：2007-09-13
申请号：US11361561
申请日：2006-02-24
申请人： John Contreras , Takashi Ikeda , Yumi Nagano , Nobumasa Nishiyama , Toyomi Ohsawa , Mike Suk
发明人： John Contreras , Takashi Ikeda , Yumi Nagano , Nobumasa Nishiyama , Toyomi Ohsawa , Mike Suk
IPC分类号： H05B1/02
CPC分类号： G11B5/4853 , G11B5/6005 , G11B5/6064
摘要： A system and method for preventing crosstalk noise from being superimposed on a read signal due to noise from a heater line for a slider in a recording disk drive is disclosed. A heater line pair to the slider is not grounded but is in a floating state with respect to an actuator support structure. A heater driver allows a heater current to flow between a positive power supply voltage and a negative power supply voltage. The heater line pair is not grounded, so an impedance is high as viewed from a magnetic disk. Thus, it is possible to effectively suppress a noise transmitted from the magnetic disk and read signal quality is kept from deteriorating due to the crosstalk from the heater line.
摘要翻译：公开了一种用于防止由于记录盘驱动器中的滑块的加热器线的噪声而引起的串扰噪声叠加在读信号上的系统和方法。与滑块相对的加热器线对不接地，而是相对于致动器支撑结构处于浮动状态。加热器驱动器允许加热器电流在正电源电压和负电源电压之间流动。加热线对不接地，因此从磁盘观察时阻抗较高。因此，可以有效地抑制从磁盘传递的噪声，并且由于来自加热器线的串扰，读取信号质量不会劣化。

3. 发明申请

US20060158785A1 Electrical lead suspension having partitioned air slots 有权
公开(公告)号：US20060158785A1
公开(公告)日：2006-07-20
申请号：US11037906
申请日：2005-01-18
申请人： Satya Arya , John Contreras , Klaas Klaassen , Nobumasa Nishiyama
发明人： Satya Arya , John Contreras , Klaas Klaassen , Nobumasa Nishiyama
IPC分类号： G11B5/48
CPC分类号： H05K1/0224 , G11B5/486 , H05K1/0253 , H05K1/056 , H05K2201/09681
摘要： An electrical lead suspension (ELS) having partitioned air slots. The ELS includes a laminate. A first plurality of signal traces and a second plurality of traces are in a first formed layer of the laminate. The second plurality of traces may be signal traces or power traces. The laminate has a dielectric layer between the first formed layer and a second formed layer. A plurality of partitioned air slots is in the second formed layer of the laminate. The portion of the ELS having a plurality of partitioned air slots supporting the at least the first plurality of signal traces and the portion of the ELS having a second plurality of partitioned air slots or patterns supporting the second plurality of traces. The supporting of the first plurality of signal traces separate from the second plurality of traces reduces write-to-read cross talk and signal loss. Offsetting the first plurality of air slots from second plurality of air slots further reduces cross talk and signal loss and restores some of the structural rigidity lost due to in line (e.g., aligned) slots.

4. 发明申请

US20120033319A1 READ PATH COMPENSATION FOR SNR AND SIGNAL TRANSFER 有权
标题翻译：用于SNR和信号传输的读取路径补偿
公开(公告)号：US20120033319A1
公开(公告)日：2012-02-09
申请号：US12851827
申请日：2010-08-06
申请人： John Contreras , Tatemi Ido , Nobumasa Nishiyama , Xinzhi Xing
发明人： John Contreras , Tatemi Ido , Nobumasa Nishiyama , Xinzhi Xing
IPC分类号： G11B5/09
CPC分类号： G11B5/02 , G11B20/10018 , G11B2220/2516
摘要： A method and apparatus is provided for extending a read bandwidth and increasing a high-frequency signal-to-noise ratio (SNR) of a front-end of a read path of a hard disk drive (HDD) by introducing a high impedance section at the front-end of the read path. The high impedance section may mitigate capacitive effects found at the front-end of the read path, thereby improving signal transfer by extending the read bandwidth.
摘要翻译：提供一种方法和装置，用于通过将高阻抗部分引入到硬盘驱动器（HDD）的读取路径的前端来扩展读取带宽并增加高频信噪比（SNR）读取路径的前端。高阻抗部分可以减轻在读取路径前端发现的电容效应，从而通过扩展读取带宽来改善信号传输。

5. 发明申请

US20060152854A1 Method and apparatus for reducing crosstalk and signal loss in flexing interconnects of an electrical lead suspension 有权
标题翻译：用于减少电引线悬架的弯曲互连中的串扰和信号损失的方法和装置
公开(公告)号：US20060152854A1
公开(公告)日：2006-07-13
申请号：US11035429
申请日：2005-01-13
申请人： Satya Arya , John Contreras , Klaas Klaassen , Nobumasa Nishiyama
发明人： Satya Arya , John Contreras , Klaas Klaassen , Nobumasa Nishiyama
IPC分类号： G11B5/48
CPC分类号： H05K1/0253 , G11B5/484 , G11B5/486 , H05K1/0393 , H05K1/056 , H05K2201/09263
摘要： A method and apparatus for reducing crosstalk and signal loss in an electrical interconnect is disclosed. The electrical interconnect includes a laminate. A plurality of signal traces and a subsequent plurality of traces are in a first formed layer of the laminate. The subsequent plurality of traces may be signal traces or power traces. The laminate has a dielectric layer between the first formed layer and a second formed layer. A plurality of serpentine patterns are in the second formed layer of the laminate. The plurality of serpentine patterns is separated from subsequent patterns. The plurality of serpentine patterns supports the plurality of signal traces and the subsequent plurality of patterns supports the subsequent plurality of traces. The supporting of the plurality of signal traces separate from the subsequent plurality of traces reduces write-to-read crosstalk and signal loss.
摘要翻译：公开了用于减少电互连中的串扰和信号损耗的方法和装置。电互连包括层压板。多个信号迹线和随后的多个迹线位于层叠体的第一成形层中。随后的多个迹线可以是信号迹线或功率迹线。层压体在第一成形层和第二成形层之间具有介电层。多个蛇形图案位于层压板的第二成形层中。多个蛇形图案与随后的图案分离。多个蛇形图案支持多个信号迹线，随后的多个图案支持随后的多个迹线。与随后的多个迹线分离的多个信号迹线的支持降低了写入 - 读取串扰和信号丢失。

6. 发明授权

US09570096B2 Read path compensation for SNR and signal transfer 有权
标题翻译：读取SNR和信号传输的路径补偿
公开(公告)号：US09570096B2
公开(公告)日：2017-02-14
申请号：US12851827
申请日：2010-08-06
申请人： John Contreras , Tatemi Ido , Nobumasa Nishiyama , Xinzhi Xing
发明人： John Contreras , Tatemi Ido , Nobumasa Nishiyama , Xinzhi Xing
IPC分类号： G11B5/09 , G11B5/02 , G11B20/10
CPC分类号： G11B5/02 , G11B20/10018 , G11B2220/2516
摘要： A method and apparatus is provided for extending a read bandwidth and increasing a high-frequency signal-to-noise ratio (SNR) of a front-end of a read path of a hard disk drive (HDD) by introducing a high impedance section at the front-end of the read path. The high impedance section may mitigate capacitive effects found at the front-end of the read path, thereby improving signal transfer by extending the read bandwidth.
摘要翻译：提供一种方法和装置，用于通过将高阻抗部分引入到硬盘驱动器（HDD）的读取路径的前端来扩展读取带宽并增加高频信噪比（SNR）读取路径的前端。高阻抗部分可以减轻在读取路径前端发现的电容效应，从而通过扩展读取带宽来改善信号传输。

7. 发明申请

US20120140360A1 INTEGRATED LEAD SUSPENSION (ILS) FOR USE WITH A DUAL STAGE ACTUATOR (DSA) 审中-公开
标题翻译：与双级执行器（DSA）一起使用的集成引线悬架（ILS）
公开(公告)号：US20120140360A1
公开(公告)日：2012-06-07
申请号：US12961962
申请日：2010-12-07
申请人： John Contreras , Nobumasa Nishiyama , Bijan Rafizadeh , Eiji Soga , Hiroyasu Tsuchida , Yiduo Zhang
发明人： John Contreras , Nobumasa Nishiyama , Bijan Rafizadeh , Eiji Soga , Hiroyasu Tsuchida , Yiduo Zhang
IPC分类号： G11B5/48
CPC分类号： G11B5/486
摘要： Approaches for integrated lead suspension that provides many benefits, such as enabling a dual stage actuator (DSA) to be used with a single layer flex with a reduced amount of crosstalk. An integrated lead suspension comprises a tail end having a plurality of conductive pads positioned thereat. The plurality of conductive pads includes a first and second dual stage actuator (DSA) pad. The first and second DSA pads are electrically coupled to a conductive member by way of conductive vias. The conductive member may be a stainless steel island. The first DSA pad conducts a signal to a first terminal at each of a plurality of dual stage actuators, while a second terminal at each of the plurality of dual stage actuators is connected to ground.
摘要翻译：集成式引线悬架的方法提供了许多优点，例如使双级致动器（DSA）与单层弯曲件一起使用，具有减少的串扰量。集成引线悬架包括具有定位在其上的多个导电焊盘的尾端。多个导电焊盘包括第一和第二双级致动器（DSA）焊盘。第一和第二DSA焊盘通过导电通孔电耦合到导电部件。导电构件可以是不锈钢岛。第一DSA垫在多个双级致动器中的每一个致动器处向第一端子传导信号，而多个双级致动器中的每一个的第二端子接地。

8. 发明申请

US20120300599A1 CHANNEL-SOURCE LASER-PULSING SYSTEM ARCHITECTURE FOR THERMAL-ASSISTED RECORDING 有权
标题翻译：用于热辅助记录的通道激光脉冲系统架构
公开(公告)号：US20120300599A1
公开(公告)日：2012-11-29
申请号：US13117300
申请日：2011-05-27
申请人： John Contreras , Weldon Hanson , Barry C. Stipe , Rehan Zakai
发明人： John Contreras , Weldon Hanson , Barry C. Stipe , Rehan Zakai
IPC分类号： G11B11/00
CPC分类号： G11B5/02 , G11B20/1024 , G11B20/10351 , G11B2005/0021 , G11B2220/2516
摘要： A method and apparatus for generating a laser signal for driving a laser used in thermal-assisted recording. A channel of a hard drive generates a high-frequency component of the laser signal—e.g., a periodic wave or series of pulses—and synchronizes the phase of the laser signal with a corresponding write data signal which controls the magnetization of data bits within the magnetic disk of the hard drive. The channel may be connected to a read/write integrated circuit via a channel interconnect. The read/write circuit may include a second phase control to compensate for any phase shift and an adder circuit to combine the transmitted high-frequency laser with a DC bias. Further, the read/write circuit may include a feedback loop for adjusting the DC bias based on environmental parameters of the hard drive such as temperature.
摘要翻译：一种用于产生用于驱动用于热辅助记录的激光的激光信号的方法和装置。硬盘驱动器的通道产生激光信号的高频分量（例如，周期波或一系列脉冲），并将激光信号的相位与相应的写数据信号同步，该对应写数据信号控制激光信号内的数据位的磁化硬盘的磁盘。信道可以经由信道互连连接到读/写集成电路。读/写电路可以包括用于补偿任何相移的第二相位控制和用于将发送的高频激光器与DC偏压组合的加法器电路。此外，读/写电路可以包括用于基于诸如温度的硬盘驱动器的环境参数来调整DC偏置的反馈回路。

9. 发明申请

US20080100970A1 CURRENT-PERPENDICULAR-TO-THE-PLANE (CPP) MAGNETORESISTIVE SENSOR WITH IMPEDANCE ADJUSTMENT 失效
标题翻译：具有阻抗调整的电流 - 平面（CPP）磁传感器
公开(公告)号：US20080100970A1
公开(公告)日：2008-05-01
申请号：US11554469
申请日：2006-10-30
申请人： Satoru Araki , John Contreras , Klaas Berend Klaassen , Ramona Marie Patterson , David John Seagle , Howard Gordon Zolla
发明人： Satoru Araki , John Contreras , Klaas Berend Klaassen , Ramona Marie Patterson , David John Seagle , Howard Gordon Zolla
IPC分类号： G11B5/33
CPC分类号： G11B5/1278
摘要： A current-perpendicular-to-the-plane (CPP) magnetoresistive (MR) read head structure has the MR read head located between first and second shields (S1, S2) on a substrate with a shunt resistor R1 connecting S1 to the substrate and a shunt resistor R2 connecting S2 to the substrate, with R1 and R2 being approximately equal. Because R1 and R2 are close enough in value there is no significant interference pickup in the low frequency region. The shunt resistors can be formed from high-resistivity metal nitrides or cermets. The spacing between the substrate and S1 may be selected to make the capacitance between S1 and the substrate approximately equal to the capacitance between S2 and the substrate to substantially reduce interference pickup in the high frequency region. Equalization conductors (EC1, EC2) may be connected to the substrate and spaced from S2 and S1, respectively, by electrically insulating material to create additional capacitances with values selected to substantially equalize the total parasitic capacitance on S2 with the total parasitic capacitance on S1.
摘要翻译：电流垂直于平面（CPP）磁阻（MR）读头结构具有位于衬底上的第一和第二屏蔽（S1，S2）之间的MR读取头，其中分流电阻器R 1连接S 1 并将R 2和R 2近似相等的分流电阻R 2与S 2连接。由于R 1和R 2的值足够接近，所以在低频区域中没有显着的干扰拾取。分流电阻可由高电阻金属氮化物或金属陶瓷形成。可以选择衬底和S 1之间的间隔，以使S 1和衬底之间的电容大致等于S 2与衬底之间的电容，以显着降低高频区域中的干扰拾取。均衡导体（EC 1，EC 2）可以分别连接到衬底，并且通过电绝缘材料分别与S 2和S 1隔开，以产生额外的电容，其值被选择为使S 2上的总寄生电容基本上相等于总共 S 1上的寄生电容。

10. 发明授权

US08045297B2 Flex cable and method for lowering flex cable impedance 有权
标题翻译：柔性电缆和降低柔性电缆阻抗的方法
公开(公告)号：US08045297B2
公开(公告)日：2011-10-25
申请号：US12323329
申请日：2008-11-25
申请人： John Contreras , Luiz M. Franca-Neto , Jr-Yi Shen
发明人： John Contreras , Luiz M. Franca-Neto , Jr-Yi Shen
IPC分类号： G11B5/48 , H01B7/08
CPC分类号： G11B5/4846 , G11B5/486
摘要： A flex cable comprises a base film, a first adhesive layer coupled with the base film, and at least two signal traces coupled with the first adhesive layer. The flex cable comprises a second adhesive layer coupled with the signal traces and the first adhesive layer, and a cover film coupled with the second adhesive layer. The flex cable comprises an electrically conductive layer adjacent to the signal traces, and parallel with the base film and the cover film.
摘要翻译：柔性电缆包括基膜，与基膜结合的第一粘合剂层和与第一粘合剂层耦合的至少两个信号迹线。柔性电缆包括与信号迹线和第一粘合剂层耦合的第二粘合剂层和与第二粘合剂层结合的覆盖膜。柔性电缆包括与信号迹线相邻的导电层，并且与基膜和覆盖膜平行。

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