-
公开(公告)号：US5223994A
公开(公告)日：1993-06-29
申请号：US865696
申请日：1992-04-08
CPC分类号： G11B5/5543 , G11B5/58 , G11B5/584 , G11B5/5965
摘要： Magnetic head structure is operated to record both servo magnetic transitions, and data magnetic transitions, in magnetic media, the servo transitions buried relative to the data transitions, the servo transitions recorded along bands and the data transitions recorded along side-by-side tracks, the bands being wider than the data tracks, the data transitions having lateral lengths greater than track width. The magnetic head structure typically employs multiple magnetic flux servo write gaps, including a leading first gap extending at one angle .alpha. and a trailing second gap extending at an angle .beta., relative to the direction of travel of the media past the head structure, the first and second flux gaps spaced and positioned to span multiple of the data tracks.
摘要翻译： 操作磁头结构以记录磁介质中的伺服磁转变和数据磁转变，相对于数据转变掩埋的伺服转变，沿着频带记录的伺服转变和沿着并排轨道记录的数据转变， 这些频带比数据轨道宽，数据转换具有大于轨道宽度的横向长度。 磁头结构通常采用多个磁通量伺服写入间隙，包括相对于介质经过磁头结构的行进方向以一角度α延伸的前导第一间隙和以角度β延伸的后续第二间隙，第一 并且间隔并定位成跨越数据轨道的多个的第二磁通隙。
-
公开(公告)号：US5132861A
公开(公告)日：1992-07-21
申请号：US485060
申请日：1990-02-26
CPC分类号： G11B5/5965 , G11B5/5543 , G11B5/58 , G11B5/584
摘要： A track means defined by magnetic recording media on a substrate, the media along the track means having two levels, one for recording of data, and the other for recording of servo information, wherein recorded magnetic transitions at the second level define the servo information, the transitions arrayed along the track means as groups of converging lines which extend in crosswise or spanwise relation to multiple tracks. The data is recorded without any wasted magnetic space between tracks (zero guardband) using alternating angles (azimuthal) of magnetic orientation so that they do not interfere with each other when read. The read head cores or gaps may be "oriented" to read recorded data transitions extending at different angles relative to track length direction.
摘要翻译： 由基板上的磁记录介质限定的轨道装置，沿着轨道装置的介质具有两个级别，一个用于记录数据，另一个用于记录伺服信息，其中在第二级记录的磁转变定义伺服信息， 沿着轨道装置排列的转变是以横向或横向关系延伸到多个轨道的会聚线组。 使用磁性定向的交替角度（方位角），记录数据，轨道之间没有任何浪费的磁空间（零保护带），使得它们在读取时不会彼此干扰。 读头磁芯或间隙可以“定向”以读取相对于磁道长度方向以不同角度延伸的记录数据转换。
-
公开(公告)号：US5003412A
公开(公告)日：1991-03-26
申请号：US116109
申请日：1987-10-30
申请人： John F. Bizjak , Leonard R. Shenfield , Scott D. Miller , Philip C. Kenny , William Benson , Michael I. Behr
发明人： John F. Bizjak , Leonard R. Shenfield , Scott D. Miller , Philip C. Kenny , William Benson , Michael I. Behr
CPC分类号： G11B5/5965 , G11B5/5534 , G11B5/59661
摘要： The present invention describes a time based servo pattern scheme which provides position and velocity information with high accuracy. A plurality of servo lines are formed on a data disk extending from the inner track to the outer track, In the preferred embodiment of the present invention, these lines are employed as part of a buried servo scheme such that the entire useable disk surface is dedicated to data storage. The servo pattern is written on each side of the disk so that, if the disk were transparent, the respective servo lines would appear to intersect when viewed from above. Servo heads located on each side of the disk detect servo line crossings. By comparing the time difference between crossings of corresponding tracks on either side of the disk, the radial position of the heads can be determined. Therefore, even when nominal track centers do not fall on servo line intersections, their position can be determined accurately. Thus, the servo pattern of the present invention is track pitch independent. A concentric calibration track is formed on the disk surface so that offsets between the desired servo and data head positions may be detected and compensated.
摘要翻译： 本发明描述了一种基于时间的伺服模式方案，其提供了高精度的位置和速度信息。 在从内轨道延伸到外轨道的数据盘上形成多条伺服线。在本发明的优选实施例中，这些线被用作掩埋伺服方案的一部分，使得整个可用盘表面是专用的 到数据存储。 伺服模式写在磁盘的每一侧，以便如果磁盘是透明的，则从上方观察时，相应的伺服线将看起来相交。 位于磁盘两侧的伺服磁头检测伺服电路的交叉口。 通过比较盘的任一侧的对应轨道的交叉点之间的时间差，可以确定头部的径向位置。 因此，即使标称轨道中心不落在伺服线路交叉点上，也可以准确地确定其位置。 因此，本发明的伺服模式是跟踪音调无关的。 在盘表面上形成一个同心校准轨迹，从而可以检测和补偿所需伺服和数据磁头位置之间的偏移。
-
公开(公告)号：US4131924A
公开(公告)日：1978-12-26
申请号：US838961
申请日：1977-10-03
申请人： Michael I. Behr , Ko K. Gyi , Wilfred D. Iwan , Joseph C. Palotay
发明人： Michael I. Behr , Ko K. Gyi , Wilfred D. Iwan , Joseph C. Palotay
CPC分类号： G11B5/6005 , G11B5/4806 , G11B5/58
摘要： Data is recorded on a magnetic recording disk with data transducers adjustably positioned relative to respective "data zones," each zone comprising a prescribed number of adjacent data tracks. A family of such transducers may be mounted together as a unitary recording head which is positionable radially over an excursion approximating the width of the (multi-track) data zones. A typical head reciprocation excursion approximates from one dozen to several dozen mils; thus, the heads are aptly mounted on flexure pivots and reciprocated directly by electro-magnetic means which are mechanically isolated from the head array.
摘要翻译： 数据被记录在磁记录盘上，数据传感器相对于相应的“数据区”可调整地定位，每个区包括规定数量的相邻数据轨道。 一个这样的传感器的系列可以一起安装在一起作为一个整体的记录头，其可径向地定位在接近（多轨）数据区的宽度的偏移上。 典型的头往复运动距离近十几米到十几米; 因此，头部适当地安装在弯曲枢轴上并且通过与磁头阵列机械隔离的电磁装置直接往复运动。
-
公开(公告)号：US4149198A
公开(公告)日：1979-04-10
申请号：US609825
申请日：1975-09-02
CPC分类号： G11B21/081 , G11B5/488 , G11B5/4886 , G11B5/5556 , G11B5/59688 , G11B21/10 , G11B5/4893
摘要： Method and apparatus for providing coarse and fine radial positioning of a multiple head assembly relative to the concentric tracks of a rotatable magnetic disk. In addition to a plurality of data heads, the head assembly also includes a pair of position sensing heads having skewed core gaps disposed at an angle with respect to each other. These position sensing heads are used for prerecording concentric position control tracks on the disk as well as for subsequent sensing of position control information during both coarse and fine positioning operations. The position control information prerecorded in the position control tracks is specially chosen so as to provide a pair of pulse trains during position sensing having characteristics such that highly accurate and reliable control of head position can be achieved based upon a detection of the coincidence relationship between predetermined pulses of the respective pulse trains.
摘要翻译： 用于提供多头组件相对于可旋转磁盘的同心轨道进行粗略和精细的径向定位的方法和装置。 除了多个数据头之外，头组件还包括一对位置感测头，其具有相对于彼此成一定角度设置的倾斜的芯间隙。 这些位置检测头用于预先记录盘上的同心位置控制轨迹，以及用于在粗略和精细定位操作期间随后感测位置控制信息。 预先记录在位置控制轨迹中的位置控制信息是特别选择的，以便在位置检测期间提供一对脉冲序列，其特征在于，可以基于检测预定位置之间的重合关系来实现对头部位置的高度准确和可靠的控制 脉冲列的脉冲。
-
公开(公告)号：US5119248A
公开(公告)日：1992-06-02
申请号：US482240
申请日：1989-02-20
申请人： John F. Bizjak , Leonard R. Shenfield , Scott D. Miller , Philip C. Kenny , William Benson , Michael I. Behr
发明人： John F. Bizjak , Leonard R. Shenfield , Scott D. Miller , Philip C. Kenny , William Benson , Michael I. Behr
CPC分类号： G11B21/081 , G11B21/106 , G11B5/5534 , G11B5/5965
摘要： The present invention describes a time based servo pattern scheme which provides position and velocity information with high accuracy. A plurality of servo lines are formed on a data disk extending from the inner track to the outer track. In the preferred embodiment of the present invention, these lines are employed as part of a buried servo scheme such that the entire useable disk surface is dedicated to data storage. The servo pattern is written on each side of the disk so that, if the disk were transparent, the respective servo lines would appear to intersect when viewed from above. Servo heads located on each side of the disk detect servo line crossings. By comparing the time difference between crossings of corresponding tracks on either side of the disk, the radial position of the heads can be determined. Therefore, even when nominal track centers do not fall on servo line intersections, their position can be determined accurately. Thus, the servo pattern of the present invention is track pitch independent. A concentric calibration track is formed on the disk surface so that offsets between the desired servo and data head positions may be detected and compensated.
摘要翻译： 本发明描述了一种基于时间的伺服模式方案，其提供了高精度的位置和速度信息。 在从内轨道延伸到外轨道的数据盘上形成多个伺服线。 在本发明的优选实施例中，这些线被用作掩埋伺服方案的一部分，使得整个可用盘表面专用于数据存储。 伺服模式写在磁盘的每一侧，以便如果磁盘是透明的，则从上方观察时，相应的伺服线将看起来相交。 位于磁盘两侧的伺服磁头检测伺服电路的交叉口。 通过比较盘的任一侧的对应轨道的交叉点之间的时间差，可以确定头部的径向位置。 因此，即使标称轨道中心不落在伺服线路交叉点上，也可以准确地确定其位置。 因此，本发明的伺服模式是跟踪音调无关的。 在盘表面上形成一个同心校准轨迹，从而可以检测和补偿所需伺服和数据磁头位置之间的偏移。
-
公开(公告)号：US5321570A
公开(公告)日：1994-06-14
申请号：US874527
申请日：1992-04-27
CPC分类号： G11B5/5965 , G11B5/5543 , G11B5/58 , G11B5/584
摘要： A track means defined by magnetic recording media on a substrate, the media along the track means having two levels, one for recording of data, and the other for recording of servo information, wherein recorded magnetic transitions at the second level define the servo information, the transitions arrayed along the track means as groups of converging lines which extend in crosswise or spanwise relation to multiple tracks. The data is recorded without any wasted magnetic space between tracks (zero guardband) using alternating angles (azimuthal) of magnetic orientation so that they do not interfere with each other when read. The read bead cores or gaps may be "oriented" to read recorded data transitions extending at different angles relative to track length direction.
摘要翻译： 由基板上的磁记录介质限定的轨道装置，沿着轨道装置的介质具有两个级别，一个用于记录数据，另一个用于记录伺服信息，其中在第二级记录的磁转变定义伺服信息， 沿着轨道装置排列的转变是以横向或横向关系延伸到多个轨道的会聚线组。 使用磁性定向的交替角度（方位角），记录数据，轨道之间没有任何浪费的磁空间（零保护带），使得它们在读取时不会彼此干扰。 读取的珠芯或间隙可以“取向”以读取相对于轨道长度方向以不同角度延伸的记录数据转变。
-
8.发明授权Method of reading and writing data transitions on side-by-side tracks on magnetic media 失效在磁性介质上并排轨道读取和写入数据转换的方法
公开(公告)号：US5293281A
公开(公告)日：1994-03-08
申请号：US865621
申请日：1992-04-08
CPC分类号： G11B5/5965 , G11B5/5543 , G11B5/58 , G11B5/584
摘要： A track means defined by magnetic recording media on a substrate, the media along the track means having two levels, one for recording of data, and the other for recording of servo information, wherein recorded magnetic transitions at the second level define the servo information, the transitions arrayed along the track means as groups of converging lines which extend in crosswise or spanwise relation to multiple tracks. The data is recorded without any wasted magnetic space between tracks (zero guardband) using alternating angles (azimuthal) of magnetic orientation so that they do not interfere with each other when read. The read head cores or gaps may be "oriented" to read recorded data transitions extending at different angles relative to track length direction.
摘要翻译： 由基板上的磁记录介质限定的轨道装置，沿着轨道装置的介质具有两个级别，一个用于记录数据，另一个用于记录伺服信息，其中在第二级记录的磁转变定义伺服信息， 沿着轨道装置排列的转变是以横向或横向关系延伸到多个轨道的会聚线组。 使用磁性定向的交替角度（方位角），记录数据，轨道之间没有任何浪费的磁空间（零保护带），使得它们在读取时不会彼此干扰。 读头磁芯或间隙可以“定向”以读取相对于磁道长度方向以不同角度延伸的记录数据转换。
-
公开(公告)号：US5055951A
公开(公告)日：1991-10-08
申请号：US321915
申请日：1989-03-10
申请人： Michael I. Behr
发明人： Michael I. Behr
CPC分类号： G11B5/584 , G11B21/081 , G11B21/10 , G11B5/5965
摘要： The specification discloses a method and apparatus for servo-positioning moveable transducer heads and the like by means of time-based servo system utilizing a particular type of servo pattern or format recorded on a data storage member, e.g., magnetic tape or disk, and having first and second sets of servo lines that extend angularly across the recording media from opposite sides thereof convergently toward one another. The individual lines in each such set of recorded servo information extend alongside one another without intersecting, and in a preferred embodiment the two sets of servo lines intersect along a medial portion of the recording media, to define a uniform series of angles disposed adjacent one another along the recording member, a preferred such pattern having a chevron-like appearance. The overall servo pattern formed by the two sets of servo lines preferably extends across substantially the entire usable surface of the recording media to provide continuous servo-positioning. Data is written over the same surface as the servo pattern, preferably by recording each different type of information in different levels of the recordable media, and preferably at a substantial difference in azimuth angle, whereby read-write isolation between the servo and data is further achieved. The specification also discloses a calibration means comprising a separately-recorded parallel information track by which any offset present between the servo heads and the data heads of individual drives may be determined and utilized in read-write operations to insure complete accuracy in tracking.
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.017 秒)
