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11. 发明授权

EP0194530B1 Method for controlling the plating rate in an electroless plating process 失效
标题翻译：控制电镀工艺中镀层率的方法
公开(公告)号：EP0194530B1
公开(公告)日：1992-05-13
申请号：EP86102645.8
申请日：1986-02-28
申请人： International Business Machines Corporation
发明人： Kaschak, Ronald Anthony , Magnuson, Roy Harvey , Yarmchuk, Edward John
IPC分类号： C23C18/16
CPC分类号： C23C18/1683 , C23C18/1617 , C23C18/405

12. 发明公开

EP0097836A2 Magnetic recording apparatus 有权
标题翻译： Gerätzur magnetischen Aufnahme。
公开(公告)号：EP0097836A2
公开(公告)日：1984-01-11
申请号：EP83105441.6
申请日：1983-06-01
申请人： International Business Machines Corporation
发明人： Franaszek, Peter Anthony Watson Research Center , Yarmchuk, Edward John
IPC分类号： G11B5/00 , G03G19/00
CPC分类号： B41J2/43 , G11B5/1272 , G11B5/17 , G11B5/488
摘要： The drawing diagrammatically illustrates the lay-out of a head array. The array comprises 64 sub-arrays, only sub-arrays B1 and B64 being shown. The sub-array 81 comprises 64 heads, each had being represented by two pole pieces, shows as square dots. 64 word lines (not shown) linkthe pole pieces, the first word line linking cores 63, 64; the second 61, 62; and the last cores 1, 2. A single bit line links the 64 cores in sub-array B1. The bit line is linked with odd numbered cores in one sense and with even numbered cores in the opposite sense. A pole piece is uniquely selected by energising the appropriate word line and then pulsing the bit line with a positive or negative pulse to select one or other of the two cores conditioned by the word line.
The heads in each column are staggered in the x-direction so that when a recording is made by relative movement in the y-direction, the magnetic spot recorded by a head e.g. head 57 is contiguous with the magnetic spot recorded by the next consecutive head in the column. Further the magnetic spot recorded by the first head in each subsequent sub-array is contiguous with the magnetic spot recorded by the last head of the preceding sub-array.
摘要翻译：该图示意性地示出了头阵列的布置。该阵列包括64个子阵列，仅示出了子阵列B1和B64。子阵列B1包括64个头，每个头由两个极片表示，显示为方形点。 64字线（未示出）链接极片，第一字线连接芯63,64; 第61,62; 和最后的核心1,2，单个位线连接子阵列B1中的64个内核。位线在一个意义上与奇数编号的核心相连，并且偶数编号的核心在相反的意义上。通过激励适当的字线，然后用正脉冲或负脉冲脉冲位线来选择极片，以选择由字线调节的两个核心中的一个或另一个。每列的磁头在x方向上交错排列，使得当通过在y方向上的相对运动进行记录时，由磁头记录的磁场，例如磁头。磁头57与由列中的下一个连续的磁头记录的磁场相邻。此外，由每个后续子阵列中的第一磁头记录的磁场与由前一子阵列的最后一个磁头记录的磁场相邻。

13. 发明授权

EP0715299B1 Radial self-propagation pattern generation for disk file servowriting 失效
标题翻译：传播模式生成用于伺服信号记录径向自己的磁盘上
公开(公告)号：EP0715299B1
公开(公告)日：1999-01-27
申请号：EP95118428.2
申请日：1995-11-23
申请人： International Business Machines Corporation
发明人： Yarmchuk, Edward John , Schultz, Mark D. , Webb, Bucknell C. , Chainer, Timothy Joseph
IPC分类号： G11B5/00 , G11B5/55 , G11B5/48 , G11B5/58 , G11B5/596
CPC分类号： G11B21/106 , G11B5/59633 , G11B5/59644 , G11B21/10

14. 发明公开

EP0721184A3 Improvements in self-servowriting timing pattern generation 失效
标题翻译：自伺服写入时序模式生成的改进
公开(公告)号：EP0721184A3
公开(公告)日：1996-07-24
申请号：EP95117322.8
申请日：1995-11-03
申请人： International Business Machines Corporation
发明人： Chainer, Timothy Joseph , Praino, Anthony Paul , Schultz, Mark Delorman , Webb, Bucknell C. , Yarmchuk, Edward John
IPC分类号： G11B21/08 , G11B5/55
CPC分类号： G11B19/04 , G11B5/5565 , G11B5/59633 , G11B21/106
摘要： Improvements in placement of timing patterns in self servo writing include correcting for random and systematic errors due to geometric effects. In a disk drive having a recording head with separate read and write elements, a method for determining separation between the elements and for correcting for such errors as a function of skew angle between the head and the disk. Errors resulting from misalignment and non-parallelism of the elements as well as misalignment of the head on it its actuator are also detected and corrected. Errors due to changes in rotational velocity of the disk and misplacement of timing patterns with respect to adjacent timing patterns are detected and corrected. In general, a single revolution process may be used to both write and detect random errors on each track and corrected on subsequent tracks.
摘要翻译：自伺服写入中的时序模式布局的改进包括纠正由几何效应引起的随机和系统误差。在具有带有分离的读和写元件的记录头的磁盘驱动器中，一种用于确定元件之间的分离并用于根据磁头和磁盘之间的歪斜角来校正这种误差的方法。也检测并校正由于元件的不对准和不平行以及头部在其致动器上的未对准而导致的错误。检测并校正由于盘的旋转速度的变化和相对于相邻定时图案的定时图案的错位导致的错误。通常，可以使用单个旋转过程来写入和检测每个轨道上的随机错误并在随后的轨道上进行纠正。

15. 发明授权

EP0507099B1 Miniature electronic device aligner using capacitance techniques 失效
标题翻译：电容式工作的缩影调整电子元器件
公开(公告)号：EP0507099B1
公开(公告)日：1996-01-10
申请号：EP92103820.4
申请日：1992-03-06
申请人： International Business Machines Corporation
发明人： Flint, Ephraim Bemis , Yarmchuk, Edward John
IPC分类号： G02B6/42 , H01L21/66
CPC分类号： G01B7/31

16. 发明授权

EP0326683B1 Capacitive measurement and control of the fly height of a recording slider 失效
标题翻译：电容测量和Aufzeichnungsgleitschuhes的飞行高度的控制。
公开(公告)号：EP0326683B1
公开(公告)日：1994-03-02
申请号：EP88120501.7
申请日：1988-12-08
申请人： International Business Machines Corporation
发明人： Hedge, Suryanarayan Ganesh , Scranton, Robert Alan , Yarmchuk, Edward John
IPC分类号： G11B5/60 , G01B7/14
CPC分类号： G11B5/6005 , G01B7/14 , G11B5/10 , G11B5/105 , G11B5/488 , G11B5/58

17. 发明公开

EP0326683A2 Capacitive measurement and control of the fly height of a recording slider 失效
标题翻译： Kapazitive Messung und Kontrolle derFlughöheeines Aufzeichnungsgleitschuhes。
公开(公告)号：EP0326683A2
公开(公告)日：1989-08-09
申请号：EP88120501.7
申请日：1988-12-08
申请人： International Business Machines Corporation
发明人： Hedge, Suryanarayan Ganesh , Scranton, Robert Alan , Yarmchuk, Edward John
IPC分类号： G11B5/60 , G01B7/14
CPC分类号： G11B5/6005 , G01B7/14 , G11B5/10 , G11B5/105 , G11B5/488 , G11B5/58
摘要： A device and method for capacitive measurement and control of the fly height of a recording slider. A recording slider 12 is vertically spaced from a rotating disk surface 14 by an "air bearing". The disk 10 has a first electrically conductive pattern 16, 22a-c, 72 at its surface. The first pattern has an edge 18, 74 with a length extending, for example, radially. The recording slider has one or more electrically conductive rails 30, 30A extending transverse to the radial pattern on the rotating disk. As the disk rotates, the edge of the pattern on the disk scans across the rail of the slider. By measuring the electrical capacitance between the slider and the pattern on the disk, and by processing the electrical capacitance measurement signal, a vertical spacing signal proportional to the vertical spacing between the disk and the slider can be obtained. Compared to prior methods and devices, more detailed, more precise and more accurate vertical spacing information can be obtained.
摘要翻译：用于电容测量和控制记录滑块的飞行高度的装置和方法。记录滑块12通过“空气轴承”与旋转盘表面14垂直间隔开。盘10在其表面上具有第一导电图案16,22a-c，72。第一图案具有边缘18,74，其长度例如径向延伸。记录滑块具有一个或多个横向于旋转盘上的径向图案延伸的导电导轨30,30A。当磁盘旋转时，磁盘上图案的边缘扫过滑块的导轨。通过测量滑块与盘上的图案之间的电容，并且通过处理电容测量信号，可以获得与盘和滑块之间的垂直间隔成比例的垂直间隔信号。与以前的方法和设备相比，可以获得更详细，更精确和更准确的垂直间距信息。

18. 发明公开

EP0288905A2 Crossed-element magnetographic print head 失效
标题翻译： Magnetographischer Druckkopf mit gekreuzten Elementen。
公开(公告)号：EP0288905A2
公开(公告)日：1988-11-02
申请号：EP88106386.1
申请日：1988-04-21
申请人： International Business Machines Corporation
发明人： Dove, Derek Brian , Keefe, George Edward , Yarmchuk, Edward John
IPC分类号： B41J2/385 , B41J2/43
CPC分类号： B41J2/43
摘要： A magnetographic printing head (26) comprises an array of crossed elongated bar-shaped print elements (58, 62) each of which is individually magnetizable by electrical conductors (40) wound about respective ones of the print elements (58, 62). The print elements (58, 62) are arranged in two parallel arrays which are spaced apart from each other to define a passage (24) through which a magnetic medium (22) is to be passed for the imprinting of marks (66) thereon. A mark (66) can be imprinted at each cross point (64) of the crossed arrays upon application of sufficient magnetizing current to each of the print elements (58, 62) at the cross point (64). The print elements (58, 62) are specifically shaped to provide for concentration of magnetic fields at the cross points (64) in two dimensions to accomplish high resolution printing. The concentration of the fields is accomplished in one embodiment of the invention by the use of a knife-edge (68) configuration to opposed facing surfaces of the elements of the opposed arrays, and in a second embodiment by a set of pedestals (72) upstanding from the elements of one of the arrays. The resulting configuration of the print head (26) has structural simplicity which permits economical fabrication while retaining high resolution in the printing.
摘要翻译：一种磁光印刷头（26）包括一排交叉的细长条状印刷元件（58,62），每个印刷元件可通过卷绕在相应印刷元件（58,62）上的电导线（40）单独地磁化。打印元件（58,62）布置成彼此间隔开的两个平行的阵列，以限定通道（24），磁性介质（22）通过该通道用于在其上刻印标记（66）。在交叉点（64）向每个打印元件（58,62）施加足够的磁化电流时，标记（66）可以印在交叉阵列的每个交叉点（64）处。打印元件（58,62）被特别地成形为在两个维度上提供交叉点（64）处的磁场浓度，以实现高分辨率打印。在本发明的一个实施例中，通过使用刀刃（68）构造来对置相对阵列的元件的相对的相对表面，并且在第二实施例中通过一组基座（72）实现了场的集中，从其中一个阵列的元素中直观出发。所得到的打印头（26）的结构具有结构简单性，其允许经济地制造，同时保持打印中的高分辨率。

19. 发明公开

EP0715299A3 Radial self-propagation pattern generation for disk file servowriting 失效
标题翻译：磁盘文件伺服写入的径向自传播模式生成
公开(公告)号：EP0715299A3
公开(公告)日：1996-08-14
申请号：EP95118428.2
申请日：1995-11-23
申请人： International Business Machines Corporation
发明人： Yarmchuk, Edward John , Schultz, Mark D. , Webb, Bucknell C. , Chainer, Timothy Joseph
IPC分类号： G11B5/00 , G11B5/55 , G11B5/48 , G11B5/58 , G11B5/596
CPC分类号： G11B21/106 , G11B5/59633 , G11B5/59644 , G11B21/10
摘要： A method for writing patterns on a medium, especially self servowriting a rotating disk in a disk drive including a servo controlled actuator for positioning the head radially with respect to the disk, in which a position error signal equals a difference between a reference waveform and a measured relative position waveform derived from readback signals from the head interacting with the disk, including writing servo patterns on successive radial tracks of the disk using the actuator and deriving the reference waveform as a function of closed loop transfer function of the actuator and at least one measured position waveform. The frequency dependent gain of the servo loop may be set so that closed loop response of the servo loop has a magnitude less than unity at every integer multiple of disk rotation frequency, yet is high enough to provide substantial reduction of mechanical disturbances. Writing a series of first patterns along a track, displacing the head a known fraction of a track to a displaced position, and reading from selected ones of the first patterns position information for determining deviation information representative of deviation of the head from the known fraction, and using the deviation information to propagate second patterns at the displaced position with the deviation information encoded in the patterns. Spacing between adjacent tracks can be adjusted without writing the entire disk. Deviations in demodulated position signal arising from random placement errors in servo patterns may be cancelled. Apparatus for performing the methods and disk drives written by the method.
摘要翻译：一种用于在介质上写入图案的方法，特别是自动伺服写入盘驱动器中的旋转盘，该盘驱动器包括用于相对于盘径向定位头的伺服控制致动器，其中位置误差信号等于参考波形和测量相对位置波形，该相对位置波形来自与磁盘相互作用的头的读回信号，包括使用致动器在磁盘的连续径向磁道上写入伺服图案，并根据致动器的闭环传递函数导出参考波形，并且至少一个测量的位置波形。伺服环路的频率相关增益可以被设置，使得伺服环路的闭环响应在盘旋转频率的每个整数倍处具有小于1的幅度，但是足够高以提供机械干扰的显着减少。沿轨道写入一系列第一图案，将头部移动到轨道的已知部分到位移位置，并从所选择的第一图案读取位置信息以确定表示头部与已知部分的偏差的偏差信息，并且利用该偏差信息来传播在该位移位置处的第二图案，其中该偏差信息被编码在该图案中。相邻轨道之间的间距可以在不写入整个磁盘的情况下进行调整。可以取消由伺服模式中的随机放置错误引起的解调位置信号的偏差。用于执行由该方法写入的方法和磁盘驱动器的设备。

20. 发明公开

EP0721184A2 Improvements in self-servowriting timing pattern generation 失效
标题翻译： Verbesserungen bei der Erzeugung eines Servosignalaufzeichnungszeitverlaufes
公开(公告)号：EP0721184A2
公开(公告)日：1996-07-10
申请号：EP95117322.8
申请日：1995-11-03
申请人： International Business Machines Corporation
发明人： Chainer, Timothy Joseph , Praino, Anthony Paul , Schultz, Mark Delorman , Webb, Bucknell C. , Yarmchuk, Edward John
IPC分类号： G11B21/08 , G11B5/55
CPC分类号： G11B19/04 , G11B5/5565 , G11B5/59633 , G11B21/106
摘要： Improvements in placement of timing patterns in self servo writing include correcting for random and systematic errors due to geometric effects. In a disk drive having a recording head with separate read and write elements, a method for determining separation between the elements and for correcting for such errors as a function of skew angle between the head and the disk. Errors resulting from misalignment and non-parallelism of the elements as well as misalignment of the head on it its actuator are also detected and corrected. Errors due to changes in rotational velocity of the disk and misplacement of timing patterns with respect to adjacent timing patterns are detected and corrected. In general, a single revolution process may be used to both write and detect random errors on each track and corrected on subsequent tracks.
摘要翻译：自我伺写写入中定时模式布局的改进包括校正由于几何效应引起的随机和系统误差。在具有具有分离的读和写元件的记录头的磁盘驱动器中，用于确定元件之间的间隔并用于校正这种误差的方法，其作为磁头和磁盘之间的歪斜角的函数。元件的不对准和不平行度导致的误差以及头部在其致动器上的未对准也会被检测和校正。检测并纠正由于盘的旋转速度的变化引起的错误和定时图案相对于相邻的定时图案的错位。通常，可以使用单次旋转处理来写入和检测每个轨道上的随机误差并在随后的轨道上进行校正。

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