公开(公告)号：US08619392B2

公开(公告)日：2013-12-31

申请号：US13464297

申请日：2012-05-04

申请人： Armando Jesus Argumedo ,  William Marvin Dyer ,  Wayne Isami Imaino ,  Kevin Bruce Judd

发明人： Armando Jesus Argumedo ,  William Marvin Dyer ,  Wayne Isami Imaino ,  Kevin Bruce Judd

IPC分类号： G11B15/60

CPC分类号： G11B15/60

摘要： In one embodiment, a tape movement constraint comprises a tiltable tape roller bearing having a grooved surface adapted to contact and engage a surface of the tape as the roller barrel rotates. An actuator adapted to pivot the roller bearing surface controls the lateral position of a tape. In operation, in one embodiment, the roller barrel of the roller bearing is rotated by engaging a surface of the tape roller barrel with a longitudinally moving magnetic tape. At least a portion of any air bearing between the moving tape and the barrel surface is quenched using grooves formed in the barrel surface. The lateral position of the moving tape is sensed and the rotating roller barrel is tilted in response to the sensed lateral position of the moving tape to control the lateral position of the moving tape. Other embodiments are described and claimed.

摘要翻译： 在一个实施例中，带运动约束包括可倾斜带辊轴承，其具有适于在辊筒旋转时接触和接合带的表面的开槽表面。 适于枢转滚子轴承表面的致动器控制带的横向位置。 在操作中，在一个实施例中，通过使带辊筒的表面与纵向移动的磁带接合来使滚子轴承的滚筒旋转。 移动带和筒表面之间任何空气轴承的至少一部分使用在桶表面中形成的凹槽进行淬火。 感测到移动带的横向位置，并且响应于感测到的移动带的横向位置而使旋转辊筒倾斜以控制移动带的横向位置。 描述和要求保护其他实施例。

公开(公告)号：US08199434B2

公开(公告)日：2012-06-12

申请号：US12987750

申请日：2011-01-10

申请人： Robert Glenn Biskeborn ,  Wayne Isami Imaino

发明人： Robert Glenn Biskeborn ,  Wayne Isami Imaino

IPC分类号： G11B5/78

CPC分类号： G11B5/00813 ,  G11B5/00826 ,  G11B5/3977 ,  G11B5/584

摘要： A magnetic recording tape according to one embodiment includes a plurality of servo tracks, each servo track comprising a series of magnetically defined bars, wherein an average height of the bars is less than about 50 microns, wherein about eight to about twenty six data bands are present on the tape. A magnetic recording tape according to another embodiment includes a plurality of servo tracks, each servo track comprising a series of magnetically defined bars, wherein an angle between at least some of the bars is greater than about 10 degrees, wherein an average height of the bars is less than about 50 microns. A magnetic recording tape according to another embodiment includes at least about eight data bands, the data bands being defined between servo tracks, wherein about eight to about twenty six data bands are present on the tape.

摘要翻译： 根据一个实施例的磁记录带包括多个伺服轨道，每个伺服轨道包括一系列磁力限定的杆，其中杆的平均高度小于约50微米，其中约8至约26个数据带是 出现在磁带上。 根据另一实施例的磁记录带包括多个伺服轨道，每个伺服轨道包括一系列磁力限定的杆，其中至少一些杆之间的角度大于约10度，其中杆的平均高度 小于约50微米。 根据另一实施例的磁记录带包括至少约八个数据带，数据带在伺服磁道之间定义，其中在磁带上存在大约八到二十六个数据带。

公开(公告)号：US07791834B2

公开(公告)日：2010-09-07

申请号：US11464461

申请日：2006-08-14

申请人： Robert Glenn Biskeborn ,  Wayne Isami Imaino

发明人： Robert Glenn Biskeborn ,  Wayne Isami Imaino

IPC分类号： G11B5/147

CPC分类号： G11B5/00813 ,  G11B5/00826 ,  G11B5/3977 ,  G11B5/584

摘要： A magnetic head having a tape bearing surface according to one embodiment includes a plurality of writers, each writer having first and second poles each having a pole tip positioned towards the tape bearing surface, a front gap defined between the pole tips, and a back gap defined along an electrical coupling of the poles at portions thereof positioned away from the tape bearing surface; wherein widths of the front and back gaps are defined in a direction parallel to the tape bearing surface and parallel to planes of deposition thereof, wherein a ratio of the width of the back gap to the width of the front gap is less than about 3:1. Various embodiments of a magnetic recording tape are also disclosed.

摘要翻译： 根据一个实施例的具有带轴承表面的磁头包括多个写入器，每个写入器具有第一和第二极，每个具有朝向带支承表面定位的极尖，位于极尖之间的前间隙，和后间隙 沿着位于远离带承载表面的部分处的极的电耦合限定; 其中所述前后间隙的宽度在平行于所述带支承表面并平行于其沉积平面的方向上限定，其中所述后间隙的宽度与所述前间隙的宽度之比小于约3： 1。 还公开了磁记录带的各种实施例。

公开(公告)号：US20100182720A1

公开(公告)日：2010-07-22

申请号：US12751870

申请日：2010-03-31

申请人： Robert Glenn Biskeborn ,  Wayne Isami Imaino

发明人： Robert Glenn Biskeborn ,  Wayne Isami Imaino

IPC分类号： G11B5/78

CPC分类号： G11B5/00813 ,  G11B5/00826 ,  G11B5/3977 ,  G11B5/584

摘要： A magnetic recording tape according to one embodiment includes a plurality of servo tracks, each servo track comprising a series of magnetically defined bars, wherein an average height of the bars is less than about 50 microns. A magnetic recording tape according to another embodiment includes a plurality of servo tracks, each servo track comprising a series of magnetically defined bars, wherein an angle between at least some of the bars is greater than about 10 degrees. A magnetic recording tape according to yet another embodiment includes at least about eight data bands, the data bands being defined between servo tracks.

摘要翻译： 根据一个实施例的磁记录带包括多个伺服轨道，每个伺服轨道包括一系列磁力限定的杆，其中杆的平均高度小于约50微米。 根据另一实施例的磁记录带包括多个伺服轨道，每个伺服轨道包括一系列磁力限定的杆，其中至少一些杆之间的角度大于约10度。 根据又一个实施例的磁记录带包括至少约八个数据带，数据带在伺服磁道之间定义。

公开(公告)号：US20090201603A1

公开(公告)日：2009-08-13

申请号：US12028676

申请日：2008-02-08

申请人： Nhan Xuan Bui ,  Reed Alan Hancock ,  David Howard Flores Harper ,  Wayne Isami Imaino

发明人： Nhan Xuan Bui ,  Reed Alan Hancock ,  David Howard Flores Harper ,  Wayne Isami Imaino

IPC分类号： G11B5/584

CPC分类号： G11B5/584

摘要： In one embodiment, a tape read/write head supported by a lever is biased in a first position, using magnetic attraction between a magnet supported by the lever, and a return path structure of magnetically permeable material. In the illustrated embodiment, the magnet centers itself, in the absence of a coil generated magnetic field, in the middle of a gap of the magnetic return path structure. In one aspect, the mass of the read/write head and one side of the lever may be balanced by the mass of the magnet and the other side of the lever. The lever and hence the tape read/write head carried by the lever, may be pivoted by conducting current through a coil to generate a magnetic field which is conducted by the return path structure to interact with the magnetic field of the magnet. As a consequence, the lever pivots on a pivot axis as a function of the magnitude and direction of the current through the coil. The face of the magnet may be divided into portions of opposite magnetic polarity to facilitate a relatively pure torque to be developed substantially without a net force. Other embodiments are described and claimed.

摘要翻译： 在一个实施例中，由杠杆支撑的磁带读/写磁头通过使用由杠杆支撑的磁体之间的磁吸引力和导磁材料的返回路径结构而被偏置在第一位置。 在所示的实施例中，磁体在没有线圈产生的磁场的情况下自身中心位于磁返回路径结构的间隙的中间。 在一个方面，读/写头的质量和杠杆的一侧可以由磁体的质量和杠杆的另一侧平衡。 由杠杆承载的杆和因此的带读/写头可以通过传导电流通过线圈来枢转，以产生由返回路径结构传导以与磁体的磁场相互作用的磁场。 因此，杠杆作为通过线圈的电流的大小和方向的作用在枢轴上枢转。 磁体的表面可以被分成相反磁极的部分，以促进基本上没有净力显着地发展相对纯的扭矩。 描述和要求保护其他实施例。

公开(公告)号：US20080037154A1

公开(公告)日：2008-02-14

申请号：US11464461

申请日：2006-08-14

申请人： Robert Glenn Biskeborn ,  Wayne Isami Imaino

发明人： Robert Glenn Biskeborn ,  Wayne Isami Imaino

IPC分类号： G11B5/09 ,  G11B5/127

CPC分类号： G11B5/00813 ,  G11B5/00826 ,  G11B5/3977 ,  G11B5/584

摘要： A magnetic head having a tape bearing surface according to one embodiment includes a plurality of writers, each writer having first and second poles each having a pole tip positioned towards the tape bearing surface, a front gap defined between the pole tips, and a back gap defined along an electrical coupling of the poles at portions thereof positioned away from the tape bearing surface; wherein widths of the front and back gaps are defined in a direction parallel to the tape bearing surface and parallel to planes of deposition thereof, wherein a ratio of the width of the back gap to the width of the front gap is less than about 3:1. Various embodiments of a magnetic recording tape are also disclosed.

摘要翻译： 根据一个实施例的具有带轴承表面的磁头包括多个写入器，每个写入器具有第一和第二极，每个具有朝向带支承表面定位的极尖，位于极尖之间的前间隙，和后间隙 沿着位于远离带承载表面的部分处的极的电耦合限定; 其中所述前后间隙的宽度在平行于所述带支承表面并平行于其沉积平面的方向上限定，其中所述后间隙的宽度与所述前间隙的宽度之比小于约3： 1。 还公开了磁记录带的各种实施例。

公开(公告)号：US06624884B1

公开(公告)日：2003-09-23

申请号：US08840351

申请日：1997-04-28

申请人： Wayne Isami Imaino ,  Anthony Juliana, Jr. ,  Milton Russell Latta ,  Charles H. Lee ,  Wai Cheung Leung ,  Hal J. Rosen ,  Steven Meeks ,  Richard Sonningfeld

发明人： Wayne Isami Imaino ,  Anthony Juliana, Jr. ,  Milton Russell Latta ,  Charles H. Lee ,  Wai Cheung Leung ,  Hal J. Rosen ,  Steven Meeks ,  Richard Sonningfeld

IPC分类号： G01N2188

CPC分类号： G01N21/88

摘要： A laser based inspection tool (LIT) for inspecting planar surfaces is described. In a preferred embodiment the LIT can simultaneously inspect both planar surfaces of disks for use in disk drives. In an embodiment of the invention, light reflected from the surface at an angle slightly offset from perpendicular is routed through a telecentric lens to a detector which converts the intensity of the reflected beam into an analog signal. The analog signal is sampled and digitized to generate pixel data. A data acquisition system sequentially stores the pixel data in a buffer. A median filter and derivative analysis can be applied to the pixel data to detect deviations indicating defects. An optional calibration system periodically reflects the scanning beam back to a detector to form a reference signal for use in absolute reflectivity measurements.

摘要翻译： 描述了一种用于检查平面的激光检测工具（LIT）。 在优选实施例中，LIT可以同时检查用于磁盘驱动器的磁盘的两个平面表面。 在本发明的一个实施例中，从表面以从垂直方向稍微偏离的角度反射的光通过远心透镜被路由到检测器，该检测器将反射光束的强度转换为模拟信号。 模拟信号被采样并数字化以产生像素数据。 数据采集​​系统将像素数据顺序存储在缓冲器中。 中值滤波器和导数分析可以应用于像素数据，以检测指示缺陷的偏差。 可选的校准系统周期性地将扫描光束反射回检测器以形成用于绝对反射率测量的参考信号。

公开(公告)号：US5945685A

公开(公告)日：1999-08-31

申请号：US974272

申请日：1997-11-19

申请人： Wayne Isami Imaino ,  Anthony Juliana, Jr. ,  Milton Russell Latta ,  Charles Cheng-Hsing Lee ,  Wai Cheung Leung ,  Hal Jervis Rosen

发明人： Wayne Isami Imaino ,  Anthony Juliana, Jr. ,  Milton Russell Latta ,  Charles Cheng-Hsing Lee ,  Wai Cheung Leung ,  Hal Jervis Rosen

IPC分类号： G01N21/94 ,  G01N21/86

CPC分类号： G01N21/94

摘要： A glass disk substrate inspection tool uses a polarized laser beam that is directed to the first surface of the disk substrate at Brewster's angle and is then transmitted through the disk substrate to a light detector that generates a signal representative of the intensity of the light received. Because the light polarized parallel to the plane of incidence, i.e., the plane formed by the line of the incident beam and a line perpendicular to the surface of the disk substrate, is completely transmitted, there is no surface reflection at either the first or second surfaces of the disk substrate. The polarized beam is directed by a first rotating scanner to the input of a telecentric lens assembly that provides an output beam parallel to its optical axis as the beam is being scanned. The beam is then directed by a first fixed mirror to strike the first surface of the disk substrate at Brewster's angle as the beam is scanned along a line across the first disk surface. The beam is then transmitted through the substrate to the second surface of the disk substrate to a second fixed mirror that redirects the beam to a second telecentric lens assembly. The light passes through the second telecentric lens assembly in the direction reverse to the direction of passage through the first telecentric lens assembly so that the output beam from the second telecentric lens assembly is directed to its focal point. This focal point coincides with the point of contact of a second rotating scanner synchronized for rotation with the first scanner. The second scanner directs the transmitted beam to the light detector.

摘要翻译： 玻璃盘基板检查工具使用以布鲁斯特角度指向盘基片的第一表面的偏振激光束，然后通过盘基片传输到产生表示所接收光的强度的信号的光检测器。 因为平行于入射平面的光，即由入射光束的线形成的平面和垂直于盘基片的表面的一条线被完全透射，所以在第一或第二处没有表面反射 盘基片的表面。 偏振光束由第一旋转扫描器引导到远心透镜组件的输入端，当远射镜被扫描时，其提供平行于其光轴的输出光束。 然后，当沿着穿过第一盘表面的线扫描光束时，光束由第一固定镜引导以以布鲁斯特角冲击盘基片的第一表面。 然后将光束通过基板传送到盘基板的第二表面，到第二固定反射镜，其将光束重定向到第二远心透镜组件。 光穿过第二远心透镜组件的方向与穿过第一远心透镜组件的通过方向相反，使得来自第二远心透镜组件的输出光束被引导到其焦点。 该焦点与第一旋转扫描器的接触点重合，该第二旋转扫描器与第一扫描器旋转同步。 第二扫描器将透射光束引导到光检测器。

公开(公告)号：US5917589A

公开(公告)日：1999-06-29

申请号：US840339

申请日：1997-04-28

申请人： Wayne Isami Imaino ,  Anthony Juliana, Jr. ,  Milton Russell Latta ,  Charles H. Lee ,  Wai Cheung Leung ,  Hal J. Rosen

发明人： Wayne Isami Imaino ,  Anthony Juliana, Jr. ,  Milton Russell Latta ,  Charles H. Lee ,  Wai Cheung Leung ,  Hal J. Rosen

IPC分类号： G01N21/94 ,  G01N21/88

CPC分类号： G01N21/94

摘要： A laser based inspection tool (LIT) for inspecting planar surfaces is described. In a preferred embodiment the LIT can simultaneously inspect both planar surfaces of disks for use in disk drives. The LIT uses a mechanical lifter which moves the disk through the laser scan lines (i.e. perpendicular to the scan lines) to allow the entire surface on each side of the disk to be scanned. The light reflected from the surface is routed to a detector which converts the intensity of the reflected beam into an analog signal. The analog signal is sampled and digitized to generate pixel data. A data acquisition system sequentially stores the pixel data in a buffer. The edges of the planar surface in the pixel data are determined for each scan line while data acquisition is in progress. A mask is applied to direct the defect detection only to meaningful areas of the disk while data acquisition is in progress. A median filter and derivative analysis can be applied to the pixel data to detect deviations indicating defects.

摘要翻译： 描述了一种用于检查平面的激光检测工具（LIT）。 在优选实施例中，LIT可以同时检查用于磁盘驱动器的磁盘的两个平面表面。 LIT使用机械升降器，其将盘移动通过激光扫描线（即垂直于扫描线），以允许扫描盘的每一侧上的整个表面。 从表面反射的光被路由到检测器，其将反射光束的强度转换成模拟信号。 模拟信号被采样并数字化以产生像素数据。 数据采集​​系统将像素数据顺序存储在缓冲器中。 在进行数据采集的同时，为每个扫描行确定像素数据中的平面的边缘。 应用掩码将缺陷检测仅指向磁盘的有意义的区域，同时数据采集正在进行。 中值滤波器和导数分析可以应用于像素数据，以检测指示缺陷的偏差。

公开(公告)号：US5867261A

公开(公告)日：1999-02-02

申请号：US840352

申请日：1997-04-28

申请人： Wayne Isami Imaino ,  Anthony Juliana, Jr. ,  Milton Russell Latta ,  Charles H. Lee ,  Wai Cheung Leung ,  Hal J. Rosen

发明人： Wayne Isami Imaino ,  Anthony Juliana, Jr. ,  Milton Russell Latta ,  Charles H. Lee ,  Wai Cheung Leung ,  Hal J. Rosen

IPC分类号： G01N21/95 ,  G01N21/88

CPC分类号： G01N21/9506

摘要： A laser based inspection tool (LIT) for inspecting planar surfaces is described. In a preferred embodiment the LIT can simultaneously inspect both planar surfaces of disks for use in disk drives. The LIT uses a mechanical lifter which moves the disk through the laser scan lines (i.e. perpendicular to the scan lines) to allow the entire surface on each side of the disk to be scanned. The light reflected from the surface is routed to a detector which converts the intensity of the reflected beam into an analog signal. The analog signal is sampled and digitized to generate pixel data. A data acquisition system sequentially stores the pixel data in a buffer. The edges of the planar surface in the pixel data are determined for each scan line while data acquisition is in progress. A mask is applied to direct the defect detection only to meaningful areas of the disk while data acquisition is in progress. A median filter and derivative analysis can be applied to the pixel data to detect deviations indicating defects. An optional calibration mirror is taught which is positioned to reflect substantially all of the incident beam during a segment of the scan line as the reflected calibration beam which is converted to an analog signal, sampled and digitized similarly to the reflected beam from the surface being inspected. By comparing the intensity of the calibration beam to the reflected beam the reflectivity of the surface can be measured.

摘要翻译： 描述了一种用于检查平面的激光检测工具（LIT）。 在优选实施例中，LIT可以同时检查用于磁盘驱动器的磁盘的两个平面表面。 LIT使用机械升降器，其将盘移动通过激光扫描线（即垂直于扫描线），以允许扫描盘的每一侧上的整个表面。 从表面反射的光被路由到检测器，其将反射光束的强度转换成模拟信号。 模拟信号被采样并数字化以产生像素数据。 数据采集​​系统将像素数据顺序存储在缓冲器中。 在进行数据采集的同时，为每个扫描行确定像素数据中的平面的边缘。 应用掩码将缺陷检测仅指向磁盘的有意义的区域，同时数据采集正在进行。 中值滤波器和导数分析可以应用于像素数据，以检测指示缺陷的偏差。 可选的校准反射镜被定位成在扫描线的一段期间基本上反射所有入射光束，作为被反射的校准光束，该反射校准光束被转换成模拟信号，与来自被检测表面的反射光束类似地进行采样和数字化 。 通过比较校准光束与反射光束的强度，可以测量表面的反射率。