公开(公告)号：US08451567B2

公开(公告)日：2013-05-28

申请号：US12928473

申请日：2010-12-13

申请人： Yuchen Zhou ,  Wenyu Chen ,  Joe Smyth

发明人： Yuchen Zhou ,  Wenyu Chen ,  Joe Smyth

IPC分类号： G11B5/39

CPC分类号： G11B5/3932 ,  G01R33/098 ,  G11B5/3909 ,  G11B2005/3996 ,  Y10T29/49044 ,  Y10T29/49048

摘要： A CPP (Current Perpendicular to Plane) MR (Magnetoresistive) read head and its method of fabrication includes a patterned CPP MR sensor stack having a SAF (Synthetic Antiferromagnetic) free layer structure that is longitudinally biased by the combination of an exchange biasing layer formed over the sensor stack and hard biasing layers that are formed adjacent to the patterned sides of the stack. The combination provides the stack with high resolution reading capabilities without the necessity for a narrow read gap formed by closely spaced top and bottom shields. Sixteen embodiments are described that provide different versions of the exchange biasing layer, different positions of the hard biasing layers and different patternings of the CPP MR sensor stack.

摘要翻译： CPP（电流垂直于平面）MR（磁阻）读取头及其制造方法包括具有SAF（合成反铁磁性）自由层结构的图案化CPP MR传感器堆叠，其通过在其上形成的交换偏置层的组合而被纵向偏置 传感器堆叠和与堆叠的图案化侧面相邻形成的硬偏置层。 该组合提供了具有高分辨率读取能力的堆叠，而不需要由紧密间隔的顶部和底部屏蔽形成的窄读取间隙。 描述了提供交换偏置层的不同版本，硬偏压层的不同位置和CPP MR传感器堆叠的不同图案的十六个实施例。

公开(公告)号：US20120155232A1

公开(公告)日：2012-06-21

申请号：US12928678

申请日：2010-12-16

申请人： Erhard Schreck ,  Tobias Maletzky ,  Xuhui Jin ,  Yuchun Zhou ,  Kenichi Takano ,  Joe Smyth

发明人： Erhard Schreck ,  Tobias Maletzky ,  Xuhui Jin ,  Yuchun Zhou ,  Kenichi Takano ,  Joe Smyth

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  B82Y20/00 ,  G02B6/1226 ,  G02B6/125 ,  G02B6/2821 ,  G11B5/3189 ,  G11B2005/001 ,  G11B2005/0021

摘要： A waveguide structure for a TAMR head is disclosed wherein at least one detection waveguide is formed parallel to a main waveguide and located a gap distance therefrom. A light source transmits light into the main waveguide and towards an ABS/medium interface. A plasmon generator converts light from the waveguide into plasmon waves that are directed onto a magnetic medium. Back reflected light is captured by the main waveguide, partially diverted into a detection waveguide, and transmitted to a photo detector that measures light intensity (IB) which correlates closely to the plasmon wave intensity at the ABS/medium interface. A controller linked to the photo detector is employed to calculate IB as a function of ABS/medium spacing in a non-write condition and this relationship can be used to control and maintain a constant plasmon wave intensity at the ABS during a series of TAMR write processes with a plurality of media.

公开(公告)号：US20110279920A1

公开(公告)日：2011-11-17

申请号：US12800194

申请日：2010-05-11

申请人： Kenichi Takano ,  Joe Smyth ,  Erhard Schreck

发明人： Kenichi Takano ,  Joe Smyth ,  Erhard Schreck

IPC分类号： G11B5/10

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/314 ,  G11B2005/0021

摘要： Improved spatial resolution during TAMR has been achieved by shaping the write pole to have a lower surface that slopes away from the surface of the recording medium, starting at, or near, the pole's leading edge. The approach may be used for simple or compound (stitched) poles.

摘要翻译： 通过使写入极通过成形使具有从磁极的前缘开始或接近磁极的边缘的表面离开记录介质的表面的下表面来实现TAMR期间的改进的空间分辨率。 该方法可用于简单或复合（缝合）极。

公开(公告)号：US08416649B2

公开(公告)日：2013-04-09

申请号：US12800194

申请日：2010-05-11

申请人： Kenichi Takano ,  Joe Smyth ,  Erhard Schreck

发明人： Kenichi Takano ,  Joe Smyth ,  Erhard Schreck

IPC分类号： G11B11/00

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/314 ,  G11B2005/0021

摘要： Improved spatial resolution during TAMR has been achieved by shaping the write pole to have a lower surface that slopes away from the surface of the recording medium, starting at, or near, the pole's leading edge. The approach may be used for simple or compound (stitched) poles.

摘要翻译： 通过使写入极通过成形使具有从磁极的前缘开始或接近磁极的边缘的表面离开记录介质的表面的下表面来实现TAMR期间的改进的空间分辨率。 该方法可用于简单或复合（缝合）极。

公开(公告)号：US09130899B1

公开(公告)日：2015-09-08

申请号：US13094897

申请日：2011-04-27

申请人： Randall B. Baird ,  Liam P. O'Gorman ,  Stephan E. Friedl ,  J. Steven Mayer ,  Joe Smyth

发明人： Randall B. Baird ,  Liam P. O'Gorman ,  Stephan E. Friedl ,  J. Steven Mayer ,  Joe Smyth

IPC分类号： G06F15/16 ,  H04L29/08 ,  G06F17/30

CPC分类号： H04L65/403 ,  G06F3/0482 ,  G06F3/04842 ,  G06F3/04847 ,  G06F9/45545 ,  G06F17/30861 ,  H04L67/02 ,  H04L67/104 ,  H04L67/141

摘要： Techniques are provided for establishing a Unified Communications (UC) session between a client endpoint device and remote endpoint devices, the client endpoint device managing the session using a first-party call control protocol in response to commands from a third-party control protocol and user input. A hosted virtual desktop (HVD) generates an HVD image and communicates it to the client endpoint device for display, via a virtual desktop interface (VDI) protocol. The HVD image comprises a UC user interface generated by a UC application on the HVD, the user interface comprising at least one user interface element and at least one placeholder where a client-provided user interface element may be inserted. A client UC application receives the HVD image and inserts client-provided user interface elements over the placeholders before sending the integrated image to a client operating system to be rendered on the display of client endpoint device.

摘要翻译： 提供技术用于在客户机端点设备和远程端点设备之间建立统一通信（UC）会话，客户终端设备响应于来自第三方控制协议和用户的命令，使用第一方呼叫控制协议管理会话 输入。 托管虚拟桌面（HVD）生成HVD图像，并通过虚拟桌面接口（VDI）协议将其传送到客户端端设备进行显示。 HVD图像包括由UC应用程序在HVD上生成的UC用户界面，所述用户界面包括至少一个用户界面元素和至少一个占位符，其中可以插入客户端提供的用户界面元素。 客户端UC应用程序接收HVD映像，并将客户端提供的用户界面元素插入占位符，然后将集成映像发送到客户端操作系统以在客户机端点设备的显示器上呈现。

公开(公告)号：US07804666B2

公开(公告)日：2010-09-28

申请号：US11787016

申请日：2007-04-13

申请人： Lijie Guan ,  Morris Dovek ,  Joe Smyth ,  Yoshitaka Sasaki

发明人： Lijie Guan ,  Morris Dovek ,  Joe Smyth ,  Yoshitaka Sasaki

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/11 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/315

摘要： Improved writability and a substantial reduction in adjacent track erasure are achieved by incorporating a composite shield structure in a PMR writer. There is a trailing shield formed a certain distance above the top surface of a write pole, a leading shield formed a certain distance below the bottom surface of the write pole, and a partial side shield having a section formed on each side of the write pole. The partial side shield thickness is less than that of the write pole. Each partial side shield section has a side that is parallel to the nearest write pole side and a top surface that is offset from the write pole top surface by 0 to 0.15 microns. A plurality of magnetic connections between two or more shield elements is employed to ensure correct magnetic potential. The large write pole has a flare angle of 45 to 75 degrees.

摘要翻译： 通过在PMR写入器中并入复合屏蔽结构来实现改进的可编写性和相邻轨迹擦除的实质性减少。 在写极的上表面之上形成一定距离的后屏蔽，在写极的底表面下方形成一定距离的前屏蔽，以及形成在写柱的每一侧上的部分的局部侧屏蔽 。 部分侧屏蔽厚度小于写入极的厚度。 每个局部侧屏蔽部分具有平行于最近的写入极侧的一侧和从写入磁极顶部表面偏移0至0.15微米的顶部表面。 采用两个或更多个屏蔽元件之间的多个磁连接来确保正确的磁势。 大写字杆的喇叭角为45度至75度。

公开(公告)号：US08621261B2

公开(公告)日：2013-12-31

申请号：US12953706

申请日：2010-11-24

申请人： Randall Bernard Baird ,  J. Steven Mayer ,  Joe Smyth

发明人： Randall Bernard Baird ,  J. Steven Mayer ,  Joe Smyth

IPC分类号： G06F11/00

CPC分类号： G06F11/2012 ,  G06F11/1479 ,  H04L67/08

摘要： Techniques are provided for establishing a Virtual Desktop Interface (VDI) connection at a virtual desktop thin client (VDTC) device, between a VDI client in the VDTC device and a VDI server in a hosted virtual desktop server (HVDS). A unified communications (UC) control connection is established between a UC protocol stack on the VDTC device and a primary call agent, where the UC control connection is configured to allow the UC protocol stack to register with the primary call agent, and to send or receive commands from the primary call agent that are based on signals from a UC control application running on the HVDS. A UC control backup application is started on the virtual desktop thin client device in a standby mode that is configured to switch to an active mode in response to a failure to establish or maintain the UC control connection, or a failure to establish or maintain the VDI connection. A user interface is launched on the virtual desktop thin client device that is configured to perform UC backup functions.

摘要翻译： 提供了在虚拟桌面瘦客户机（VDTC）设备，VDTC设备中的VDI客户端和托管虚拟桌面服务器（HVDS）中的VDI服务器之间建立虚拟桌面接口（VDI）连接的技术。 在VDTC设备上的UC协议栈和主呼叫代理之间建立统一通信（UC）控制连接，其中UC控制连接被配置为允许UC协议栈向主呼叫代理注册，并且发送或 接收来自主呼叫代理的基于来自在HVDS上运行的UC控制应用的信号的命令。 在虚拟桌面瘦客户端设备上启动UC控制备份应用程序，该备用模式被配置为响应于建立或维护UC控制连接的故障而切换到活动模式，或者未能建立或维护VDI 连接。 在配置为执行UC备份功能的虚拟桌面瘦客户端设备上启动用户界面。

公开(公告)号：US08582240B1

公开(公告)日：2013-11-12

申请号：US13597472

申请日：2012-08-29

申请人： Wenyu Chen ,  Joe Smyth

发明人： Wenyu Chen ,  Joe Smyth

IPC分类号： G11B5/127

CPC分类号： G11B5/399 ,  G11B5/1278 ,  G11B5/314 ,  G11B5/3146 ,  G11B2005/0024

摘要： A design is disclosed for a microwave assisted magnetic recording device wherein direct current and rf current are simultaneously injected from a bias tee into a spin transfer oscillator (STO) between a main pole and write shield to improve the assist process. The STO oscillation layer (OL) has a large angle magnetization oscillation frequency that is locked to a magnetic medium bit resonance frequency f0 when the rf current has a frequency f=f0 and a threshold current density is applied. Alternatively, the OL magnetization oscillation frequency may be adjusted closer to f0 to improve the assist process. A third advantage is lowering the threshold current density when both direct current and rf current are injected into the STO during a write process. The main pole is grounded when direct current and rf current are injected into a write shield.

摘要翻译： 公开了一种用于微波辅助磁记录装置的设计，其中直流电流和射频电流同时从偏置三通管注入主极和写屏蔽之间的自旋转移振荡器（STO），以改善辅助过程。 STO振荡层（OL）具有大的角度磁化振荡频率，当rf电流具有频率f = f0并施加阈值电流密度时，其被锁定到磁介质位谐振频率f0。 或者，可以将OL磁化振荡频率调整为更接近于f0，以改善辅助处理。 第三个优点是在写入过程中将直流和直流电流都注入到STO中时降低阈值电流密度。 当直流电流和rf电流注入写入屏蔽时，主极接地。