公开(公告)号：US06266205B1

公开(公告)日：2001-07-24

申请号：US09073600

申请日：1998-05-06

申请人： Erhard T. Schreck ,  Lin Guo

发明人： Erhard T. Schreck ,  Lin Guo

IPC分类号： G11B5596

CPC分类号： G11B5/00813 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/012 ,  G11B5/09 ,  G11B5/3948 ,  G11B5/488 ,  G11B5/4886 ,  G11B5/4969 ,  G11B5/4992 ,  G11B5/5534 ,  G11B5/59622 ,  G11B5/59627 ,  G11B5/59644 ,  G11B5/59683 ,  G11B2005/0016 ,  G11B2005/3996

摘要： A magnetic storage system having one or more rotating disks is disclosed. In a preferred embodiment, each rotating disk has two magnetic surfaces which each contain a number of tracks. Each track has one or more data regions and one or more embedded servo sectors. First and second transducers are respectively suspended over first and second tracks corresponding to first and second magnetic surfaces. The second transducer determines an off-track position with respect to the second track by reading from the data region of the second track. Once the off-track position is determined for the second transducer, that information is used to position the first transducer with respect to the first track and position the second transducer with respect to the second track as the first transducer writes to the first track. Furthermore, the first transducer is positioned at a correction rate that exceeds the rate at which the first transducer encounters embedded servo sectors in the first track. As a result, the first transducer reduces or avoids flying-blind as it writes to the disk.

摘要翻译： 公开了一种具有一个或多个旋转盘的磁存储系统。 在优选实施例中，每个旋转盘具有两个磁性表面，每个磁性表面包含多个磁道。 每个轨道具有一个或多个数据区域和一个或多个嵌入式伺服扇区。 第一和第二换能器分别悬挂在对应于第一和第二磁性表面的第一和第二轨道上。 第二传感器通过从第二磁道的数据区域读取来确定相对于第二磁道的偏离磁道位置。 一旦为第二换能器确定偏离轨迹位置，则该信息用于相对于第一轨道定位第一换能器，并且当第一换能器写入第一轨道时相对于第二轨道定位第二换能器。 此外，第一换能器位于超过第一换能器在第一轨道中遇到嵌入式伺服扇区的速率的校正速率。 因此，第一个传感器会在写入磁盘时减少或避免飞盲。

公开(公告)号：US5671106A

公开(公告)日：1997-09-23

申请号：US557823

申请日：1995-11-14

申请人： Jean-Claude Lehureau

发明人： Jean-Claude Lehureau

IPC分类号： G11B5/31 ,  G11B5/49 ,  G11B5/29

CPC分类号： G11B5/313 ,  G11B5/4969 ,  G11B5/4992

摘要： A magnetic head including a first induction conductor coupled to a second conductor which is coupled into a closed magnetic circuit having a magnetic flux induction coil supplied with a pulsed or alternating current. Instead of a coil, therefore, only the first induction conductor is magnetically coupled with the head. The magnetic head allows for implementation of high density heads with matrix control and can be used in magnetic recording/reading applications.

摘要翻译： 一种磁头，包括耦合到第二导体的第一感应导体，其耦合到具有供给脉冲或交流电流的磁通感应线圈的闭合磁路中。 因此，代替线圈，只有第一感应导体与磁头磁耦合。 磁头允许通过矩阵控制实现高密度磁头，并可用于磁记录/读取应用。

公开(公告)号：US07126890B2

公开(公告)日：2006-10-24

申请号：US10497557

申请日：2003-09-19

申请人： Rachel E. Learned ,  Robert B. MacLeod

发明人： Rachel E. Learned ,  Robert B. MacLeod

IPC分类号： G11B7/00

CPC分类号： G11B5/012 ,  G11B5/488 ,  G11B5/4886 ,  G11B5/4969 ,  G11B5/4976 ,  G11B5/4992 ,  G11B20/00 ,  G11B20/1217 ,  G11B2020/1238 ,  G11B2020/1288 ,  G11B2020/1298 ,  G11B2220/2541

摘要： Techniques for reading data from a storage medium (150) having a high track density prone to adjacent track interference are disclosed. One or more sensing elements (120) are used to extract data stored on adjacent tracks. Multiuser detection (130) is then used to detect/decode a single track that is closely spaced to its neighboring tracks, resolve interference from adjacent tracks, or to simultaneously detect/decode multiple adjacent closely packed tracks.

摘要翻译： 公开了从具有易于相邻轨道干扰的高轨道密度的存储介质（150）读取数据的技术。 一个或多个感测元件（120）用于提取存储在相邻轨道上的数据。 然后，多用户检测（130）用于检测/解码与其相邻轨道紧密隔开的单个轨道，解决来自相邻轨道的干扰，或同时检测/解码多个相邻紧密排列的轨道。

公开(公告)号：US20040037202A1

公开(公告)日：2004-02-26

申请号：US10251187

申请日：2002-09-20

发明人： Karl D. Brommer ,  Robert B. MacLeod ,  Michael P. Schmidt

IPC分类号： G11B007/00

CPC分类号： G11B7/14 ,  G11B5/012 ,  G11B5/488 ,  G11B5/4886 ,  G11B5/4969 ,  G11B5/4976 ,  G11B5/4992 ,  G11B11/10515 ,  G11B20/10 ,  G11B20/10009 ,  G11B20/1217 ,  G11B20/22 ,  G11B2020/1238 ,  G11B2020/1288 ,  G11B2020/1292 ,  H04B1/71057 ,  H04B7/0851 ,  H04L1/06 ,  H04L1/20 ,  H04L1/24 ,  H04L25/03159 ,  H04L25/03171 ,  H04L25/03203 ,  H04L25/03331

摘要： A processing scheme for digital storage media using multi-user detection to separate tracks of data or remove interference from neighboring tracks. In one embodiment, data is written on a plurality of tracks positioned sufficiently close together so that multiple tracks are detected simultaneously by the read access sensor. Upon scanning the surface for data, the read element simultaneously receives the data signals from a plurality of tracks. Joint detection signal processing resolves the interference and data bits from the multiple sensed tracks, enabling closer packing of data with minimal guard space.

公开(公告)号：US06400521B1

公开(公告)日：2002-06-04

申请号：US08686756

申请日：1996-07-25

申请人： Jürgen Kaaden

发明人： Jürgen Kaaden

IPC分类号： G11B503

CPC分类号： G11B15/12 ,  G11B5/09 ,  G11B5/2658 ,  G11B5/49 ,  G11B5/4969 ,  G11B5/4976 ,  G11B5/4992

摘要： Magnetic tape recording apparatus comprising a plurality of recording heads for recording digital signals onto a magnetic tape, the recording heads being arranged in a matrix-type structure; and a control unit for electrically compensating for different magnetic properties of the recording heads, the control unit comprising controllable current sources connected to each of the recording heads; at least one non-volatile memory in which is permanently stored individually determined and pre-set magnetizing current values individually corresponding to a particular recording head; and common controller circuit for selectively activating the current sources and the current values stored in the non-volatile memory in dependence on the digital signals to be recorded, wherein upon selection the recording heads are supplied with the stored values of the magnetizing current assigned to them.

摘要翻译： 磁带记录装置包括用于将数字信号记录在磁带上的多个记录头，记录头以矩阵型结构排列; 以及控制单元，用于电补偿记录头的不同磁性，所述控制单元包括连接到每个记录头的可控电流源; 至少一个非易失性存储器，其中单独地确定和预设的磁化电流值被永久存储，分别对应于特定的记录头; 以及公共控制器电路，用于根据要记录的数字信号选择性地激活电流源和存储在非易失性存储器中的电流值，其中在选择时，向记录头提供分配给它们的磁化电流的存储值 。

公开(公告)号：US5592413A

公开(公告)日：1997-01-07

申请号：US422336

申请日：1995-04-13

申请人： Richard Spitzer

发明人： Richard Spitzer

IPC分类号： G01R33/09 ,  G01Q60/16 ,  G01Q80/00 ,  G01R33/10 ,  G11B5/00 ,  G11B5/02 ,  G11B5/09 ,  G11B5/127 ,  G11B5/35 ,  G11B5/37 ,  G11B5/39 ,  G11B5/49 ,  G11B9/00 ,  G11B9/14 ,  G11B19/02 ,  G11B20/10 ,  G11B21/00 ,  G11C11/14 ,  G11C11/21 ,  G11C13/02 ,  G11C13/00 ,  G11C7/00

CPC分类号： G11B5/00 ,  B82Y10/00 ,  G11B19/02 ,  G11B20/10 ,  G11B21/00 ,  G11B21/003 ,  G11B5/09 ,  G11B5/35 ,  G11B5/4969 ,  G11B5/4992 ,  G11C11/14 ,  G11C13/02 ,  G01Q80/00 ,  G11B2005/0002 ,  G11B2005/0005 ,  G11B2005/0016 ,  G11B9/1418 ,  Y10S977/85 ,  Y10S977/852 ,  Y10S977/861 ,  Y10S977/872 ,  Y10S977/874 ,  Y10S977/947

摘要： An electronic transducer array and transfer device and method which provides for activation of selected transducers at selected times. In one application, the device performs data transfer by a combination of suitably interconnected submillimeter transducers (4) capable of sensing and/or actuating microscopic data-storage cells, and electronic switching (402, 602, 702) to activate selected individual transducers. One embodiment of the invention provides for magnetic transducers for reading (304) and writing (302) on a magnetic medium (8). Another embodiment of the invention provides tunneling electron transducers (10) arranged in an array.

摘要翻译： 一种电子换能器阵列和传送装置和方法，其在选定的时间提供所选换能器的激活。 在一个应用中，设备通过能够感测和/或致动微观数据存储单元的适当互连的亚毫米波换能器（4）和电子切换（402,602,702）的组合执行数据传输，以激活所选择的各个换能器。 本发明的一个实施例提供了用于在磁介质（8）上读取（304）和写入（302）的磁换能器。 本发明的另一实施例提供了排列成阵列的隧穿电子换能器（10）。

公开(公告)号：US5216553A

公开(公告)日：1993-06-01

申请号：US431216

申请日：1989-11-03

申请人： Akira Nakamura

发明人： Akira Nakamura

IPC分类号： G11B5/09 ,  G11B5/012 ,  G11B5/035 ,  G11B5/49

CPC分类号： G11B5/035 ,  G11B5/012 ,  G11B5/4992

摘要： A magnetic recording circuit capable of recording information on a disk-shaped magnetic recording medium such as a floppy disk. In storing the information on the recording medium, a write current is varied in quantity more smaller for a more inner track and more larger for a more outer track. The current to flow to a write coil is controlled by selecting one of a plurality of current-mirror output-side transistors through which the current may flow. This selecting is performed by a track counter which realizes a storage track by counting a string of count signals corresponding to the location of the track.

摘要翻译： 一种能够在诸如软盘的盘形磁记录介质上记录信息的磁记录电路。 在将信息存储在记录介质上时，对于更多的内部磁道，写入电流的数量变得更小，而对于更多的外部磁道，写入电流的数量更大。 通过选择电流可以流过的多个电流镜输出侧晶体管中的一个来控制流向写入线圈的电流。 该选择由轨道计数器执行，轨道计数器通过对与轨道的位置对应的计数信号进行计数来实现存储轨道。

公开(公告)号：US20240296861A1

公开(公告)日：2024-09-05

申请号：US18358872

申请日：2023-07-25

申请人： KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION

发明人： Yuji NAKAGAWA ,  Ryo OSAMURA ,  Masayuki TAKAGISHI ,  Naoyuki NARITA ,  Tomoyuki MAEDA ,  Tazumi NAGASAWA ,  Kosuke KURIHARA

IPC分类号： G11B5/187 ,  G11B5/127 ,  G11B5/31 ,  G11B5/49

CPC分类号： G11B5/1875 ,  G11B5/1272 ,  G11B5/3133 ,  G11B5/4992

摘要： According to one embodiment, a magnetic head includes a first magnetic pole, a second magnetic pole, and a magnetic element provided between the first and the second magnetic poles. The magnetic element includes first to fourth magnetic layers, and first to fifth non-magnetic layers. The fourth magnetic layer includes a first element and at least one of Fe, Co or Ni. The first element including at least one selected from the group consisting of Cr, V, Mn, Ti, N and Sc. The fourth non-magnetic layer including at least one selected from the group consisting of Cu, Au, Cr, Al, V and Ag. The fifth non-magnetic layer includes at least one selected from the group consisting of Cu, Au, Cr, Al, V and Ag.

公开(公告)号：US06903892B1

公开(公告)日：2005-06-07

申请号：US10280621

申请日：2002-10-25

申请人： James C. Cates

发明人： James C. Cates

IPC分类号： G11B5/00 ,  G11B5/008 ,  G11B5/48 ,  G11B5/49 ,  G11B5/584 ,  G11B15/60 ,  G11B20/10 ,  G11B20/18 ,  G11B5/09

CPC分类号： G11B15/125 ,  G11B5/00813 ,  G11B5/4893 ,  G11B5/4976 ,  G11B5/4992 ,  G11B5/584 ,  G11B15/20 ,  G11B15/602 ,  G11B20/10009 ,  G11B20/1879 ,  G11B2005/0013

摘要： The present invention decreases the number of repositions during read back by making use of multiple read elements associated with each data track. Each of a plurality of sets of read electronics receives the read signal from either one or the other of the two read elements associated with each data track and converts the received read signal into read data. For each data track, control logic selects one of the two read elements as a source for output data. In response to a determination that a read error has occurred, the control logic selects the other of the two read elements as the source for output data. For each data track, one read element is offset relative to the other read element in an offset direction normal to the tape direction.

摘要翻译： 本发明通过利用与每个数据轨道相关联的多个读取元素来减少回读期间的重新定位次数。 多组读取电子设备中的每一个从与每个数据磁道相关联的两个读取元件中的一个或另一个接收读取信号，并将接收到的读取信号转换为读取数据。 对于每个数据轨道，控制逻辑选择两个读取元素中的一个作为输出数据的源。 响应于发生读取错误的确定，控制逻辑选择两个读取元素中的另一个作为输出数据的源。 对于每个数据轨道，一个读取元素相对于与磁带方向垂直的偏移方向相对于另一个读取元素偏移。

公开(公告)号：US06449112B1

公开(公告)日：2002-09-10

申请号：US09416912

申请日：1999-10-13

申请人： Edgar Wursthorn ,  Jürgen Kaaden

发明人： Edgar Wursthorn ,  Jürgen Kaaden

IPC分类号： G11B1512

CPC分类号： G11B5/4992 ,  G11B5/4976

摘要： Tape recorder having a group of write heads which are arranged like a matrix in rows and columns, with each write head assigned in one row line and in one column line, and having a driver circuit for passing current through the row and column lines. A write head magnetizes a magnetic tape permanently only when its associated row and column lines have currents applied to them causing magnetic fields that reinforce one another in the magnetic tape. A common row return line is provided to which all the row lines are connected and a common column return line is provided to which all the column lines are connected.

摘要翻译： 磁带记录器具有一组写入头，其排列成行和列的矩阵，每个写入头分配在一行和一列，并且具有用于使电流通过行和列线的驱动电路。 只有当其相关联的行和列线具有施加到其上的电流时，写磁头永久地磁化磁带，导致在磁带中彼此加强的磁场。 提供了所有行线连接到的公共行返回线，并且提供了所有列线连接到的公共列返回线。