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1.发明授权A servo control system for centring a transducer head on a data track on a magnetic record 失效用于在磁记录上的数据轨上设置传感器头的伺服控制系统
公开(公告)号：EP0207692B1
公开(公告)日：1992-03-04
申请号：EP86304716.3
申请日：1986-06-19
CPC分类号： G11B5/59611 , G11B5/59633
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2.发明公开Method and apparatus for recording data transitions 失效Verfahren undGerätzur Aufzeichnung vonDatenübergängen。
公开(公告)号：EP0439278A2
公开(公告)日：1991-07-31
申请号：EP91300354.7
申请日：1991-01-17
CPC分类号： G11B20/1201 , G11B5/584 , G11B5/59633 , G11B21/10 , G11B2020/1255 , G11B2020/1282 , G11B2220/2508 , G11B2220/90
摘要： A method and means is described for writing data on a recording medium, such as a disk or tape, containing servo samples in such manner that the number of servo samples is increased with a minimal increase in overhead (non-data) regions. The tracks on the medium are divided into a plurality of maxi sections, each of which contains all fields with servo and associated overhead information and also a data field. At least one micro servo section containing only a portion of said information is located within each data field.
As each micro servo section passes by an associated recording head, writing and reading of data is temporarily interrupted, but resumed when the micro servo section moves beyond the head, in such manner as to require minimal resynchronisation of said data during reading.
Using a phase continuous clock, data is written in both portions of a data field to either side of each micro servo section in one pass of the disk or tape relative to the head. The micro servo sections contain no timing reference address mark and require no data encoder/decoder flush or synchronisation byte to resume reading in the portion of the data field following each micro servo section.摘要翻译： 描述了一种方法和装置，用于以包含伺服样本的记录介质（诸如磁盘或磁带）的方式和装置，使得随着开销（非数据）区域的最小增加使伺服样本的数量增加。 介质上的轨道被分成多个最大区段，每个区段包含具有伺服和相关联的开销信息的所有域，并且还包括数据域。 仅包含所述信息的一部分的至少一个微伺服部位于每个数据字段内。 当每个微型伺服部分通过相关联的记录头时，数据的写入和读取被暂时中断，但是当微型伺服部分移动超过头部时恢复，以便在读取期间要求所述数据的最小重新同步。 使用相位连续时钟，在磁盘或磁带相对于磁头的一次通过中，将数据写入每个微伺服部分的任一侧的数据场的两部分。 微伺服部分不包含定时参考地址标记，并且不需要数据编码器/解码器刷新或同步字节以在每个微伺服部分之后的数据字段部分恢复读取。
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公开(公告)号：EP0439278A3
公开(公告)日：1992-09-02
申请号：EP91300354.7
申请日：1991-01-17
CPC分类号： G11B20/1201 , G11B5/584 , G11B5/59633 , G11B21/10 , G11B2020/1255 , G11B2020/1282 , G11B2220/2508 , G11B2220/90
摘要： A method and means is described for writing data on a recording medium, such as a disk or tape, containing servo samples in such manner that the number of servo samples is increased with a minimal increase in overhead (non-data) regions. The tracks on the medium are divided into a plurality of maxi sections, each of which contains all fields with servo and associated overhead information and also a data field. At least one micro servo section containing only a portion of said information is located within each data field. As each micro servo section passes by an associated recording head, writing and reading of data is temporarily interrupted, but resumed when the micro servo section moves beyond the head, in such manner as to require minimal resynchronisation of said data during reading. Using a phase continuous clock, data is written in both portions of a data field to either side of each micro servo section in one pass of the disk or tape relative to the head. The micro servo sections contain no timing reference address mark and require no data encoder/decoder flush or synchronisation byte to resume reading in the portion of the data field following each micro servo section.
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4.发明公开A magnetic record disk and a magnetic record disk file 失效Magnetische Aufzeichnungsplatte und Grossraummagnetplattenspeicher。
公开(公告)号：EP0208054A2
公开(公告)日：1987-01-14
申请号：EP86103210.0
申请日：1986-03-11
CPC分类号： G11B5/59627
摘要： Servo information is located within one of the data sectors of a record disk and is in the form of a pattern of radially spaced-apart segments (51, 52, 53, 61, 62, 63) , each segment overlapping a number of data tracks and comprising magnetic transitions which increase in frequency with distance from the centre of the disk to provide a digital head position error signal (PES). A similar segment (31, 32, 33) is located in each of the other data sectors around the perimeter of the disk to provide track profile information so that a head positioning system can compensate for disk runout and distortion. The disk drive can include means for eliminating the effect of the amplitude of the readback signal from the servo and profile segments on the head positioning system, thus ensuring a reliable PES at all radial locations on the disk and allowing interchangeability of disks among disk drives.
摘要翻译： 伺服信息位于记录盘的数据扇区之一内，并且呈径向间隔开的段（51,52,53,61,62,63）的形式，每个段与多个数据轨道重叠 并且包括随着距离盘的中心的距离而增加频率的磁转变以提供数字磁头位置误差信号（PES）。 类似的段（31,32,33）位于围绕盘的周边的每个其他数据扇区中，以提供轨道轮廓信息，使得头部定位系统可以补偿盘的跳动和失真。 磁盘驱动器可以包括用于消除来自头部定位系统上的伺服和轮廓段的回读信号的幅度的影响的装置，从而确保在盘上的所有径向位置处的可靠的PES，并且允许盘驱动器之间的盘的可互换性。
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公开(公告)号：EP0660324A2
公开(公告)日：1995-06-28
申请号：EP94309305.4
申请日：1994-12-13
CPC分类号： G11B20/10 , G11B5/5526 , G11B5/59655 , G11B19/12 , G11B20/1258 , G11B20/1883 , G11B20/1889 , G11B21/083 , G11B21/106 , G11B27/3027 , G11B2020/1234 , G11B2020/1282 , G11B2220/20
摘要： A sector servo, zone bit recording disk drive (202) includes a sector architecture in which the recording head (208) locates and identifies data sectors (254) without using data ID fields, but instead using information obtained from electronic storage (212,215) and from servo sectors (220) which need not be adjacent to the data sectors. The tracks contain servo information and data, but not data sector ID information. The tracks in each zone are circumferentially divided into segments. Included in each segment is a number of data regions separated from one another by servo sectors. The data regions may contain partial data sectors and complete data sectors. The format information provided to identify and locate data sectors, including ones whose region locations are not adjacent to servo sectors, includes an entry for each region in the section. Each entry includes the lengths of the first and last data sections in the region, whether the sectors represented by those sections are split between two regions, the total number of data sectors in the region, and the sector number of the first data sector in the region. The information provided in the servo sectors consists of a servo sector number or other indicia which enables the disk drive to determine the position of the recording head and begin reading or writing immediately upon settling on-track and without incurring a latency penalty.
摘要翻译： 扇区伺服，区位记录盘驱动器包括扇区架构，其中记录头在不使用数据ID字段的情况下定位和识别数据扇区，而是使用从电子存储器获取的信息和不需要与数据扇区相邻的伺服扇区 。 轨道包含伺服信息和数据，但不包含数据扇区ID信息。 每个区域中的轨道沿周向分成段。 包括在每个段中的是通过伺服扇区彼此分离的多个数据区域。 数据区域可以包含部分数据扇区和完整的数据扇区。 提供用于识别和定位数据扇区的格式信息，包括其区域位置不与伺服扇区相邻的扇区，包括该区段中每个区域的条目。 每个条目包括该区域中的第一和最后数据段的长度，由这些部分表示的扇区是否在两个区域之间分割，该区域中的数据扇区的总数以及该区域中的第一数据扇区的扇区号 地区。 提供在伺服扇区中的信息包括伺服扇区号或其他标记，其使得磁盘驱动器能够确定记录头的位置，并且在轨道上稳定并立即开始读取或写入，并且不会引起延迟损失。
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公开(公告)号：EP0439278B1
公开(公告)日：1995-03-29
申请号：EP91300354.7
申请日：1991-01-17
CPC分类号： G11B20/1201 , G11B5/584 , G11B5/59633 , G11B21/10 , G11B2020/1255 , G11B2020/1282 , G11B2220/2508 , G11B2220/90
摘要： A method and means is described for writing data on a recording medium, such as a disk or tape, containing servo samples in such manner that the number of servo samples is increased with a minimal increase in overhead (non-data) regions. The tracks on the medium are divided into a plurality of maxi sections, each of which contains all fields with servo and associated overhead information and also a data field. At least one micro servo section containing only a portion of said information is located within each data field. As each micro servo section passes by an associated recording head, writing and reading of data is temporarily interrupted, but resumed when the micro servo section moves beyond the head, in such manner as to require minimal resynchronisation of said data during reading. Using a phase continuous clock, data is written in both portions of a data field to either side of each micro servo section in one pass of the disk or tape relative to the head. The micro servo sections contain no timing reference address mark and require no data encoder/decoder flush or synchronisation byte to resume reading in the portion of the data field following each micro servo section.
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公开(公告)号：EP0208054A3
公开(公告)日：1988-01-07
申请号：EP86103210
申请日：1986-03-11
IPC分类号： G11B05/596 , G11B05/016
CPC分类号： G11B5/59627
摘要： Servo information is located within one of the data sectors of a record disk and is in the form of a pattern of radially spaced-apart segments (51, 52, 53, 61, 62, 63) , each segment overlapping a number of data tracks and comprising magnetic transitions which increase in frequency with distance from the centre of the disk to provide a digital head position error signal (PES). A similar segment (31, 32, 33) is located in each of the other data sectors around the perimeter of the disk to provide track profile information so that a head positioning system can compensate for disk runout and distortion. The disk drive can include means for eliminating the effect of the amplitude of the readback signal from the servo and profile segments on the head positioning system, thus ensuring a reliable PES at all radial locations on the disk and allowing interchangeability of disks among disk drives.
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公开(公告)号：EP0660324B1
公开(公告)日：2001-05-23
申请号：EP94309305.4
申请日：1994-12-13
CPC分类号： G11B20/10 , G11B5/5526 , G11B5/59655 , G11B19/12 , G11B20/1258 , G11B20/1883 , G11B20/1889 , G11B21/083 , G11B21/106 , G11B27/3027 , G11B2020/1234 , G11B2020/1282 , G11B2220/20
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公开(公告)号：EP0660324A3
公开(公告)日：1999-01-27
申请号：EP94309305.4
申请日：1994-12-13
CPC分类号： G11B20/10 , G11B5/5526 , G11B5/59655 , G11B19/12 , G11B20/1258 , G11B20/1883 , G11B20/1889 , G11B21/083 , G11B21/106 , G11B27/3027 , G11B2020/1234 , G11B2020/1282 , G11B2220/20
摘要： A sector servo, zone bit recording disk drive (202) includes a sector architecture in which the recording head (208) locates and identifies data sectors (254) without using data ID fields, but instead using information obtained from electronic storage (212,215) and from servo sectors (220) which need not be adjacent to the data sectors. The tracks contain servo information and data, but not data sector ID information. The tracks in each zone are circumferentially divided into segments. Included in each segment is a number of data regions separated from one another by servo sectors. The data regions may contain partial data sectors and complete data sectors. The format information provided to identify and locate data sectors, including ones whose region locations are not adjacent to servo sectors, includes an entry for each region in the section. Each entry includes the lengths of the first and last data sections in the region, whether the sectors represented by those sections are split between two regions, the total number of data sectors in the region, and the sector number of the first data sector in the region. The information provided in the servo sectors consists of a servo sector number or other indicia which enables the disk drive to determine the position of the recording head and begin reading or writing immediately upon settling on-track and without incurring a latency penalty.
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