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1. 发明授权

US5867340A Microminiature hard disk drive with adaptive runout compensation 失效
标题翻译：具有自适应跳动补偿的微型硬盘驱动器
公开(公告)号：US5867340A
公开(公告)日：1999-02-02
申请号：US780964
申请日：1997-01-09
申请人： James H. Morehouse , Thomas L. Andrews, Jr. , Gary E. Counts , Steven B. Volk , Michael R. Utenick , Stephen R. Cowen , Richard K. Thompson
发明人： James H. Morehouse , Thomas L. Andrews, Jr. , Gary E. Counts , Steven B. Volk , Michael R. Utenick , Stephen R. Cowen , Richard K. Thompson
IPC分类号： G11B5/11 , G11B5/48 , G11B5/54 , G11B5/55 , G11B5/596 , G11B19/20 , G11B21/10 , G11B25/04 , G11B31/00 , G11B33/12
CPC分类号： G11B33/121 , G11B19/2009 , G11B21/106 , G11B25/043 , G11B31/00 , G11B5/11 , G11B5/4886 , G11B5/54 , G11B5/5526 , G11B5/59622 , G11B5/59627 , G11B5/59644 , G11B5/5965 , Y10S360/903
摘要： Disclosed is a rigid disk drive information storage device which includes a rigid disk having an outside diameter in the range of about 33-34 mm., with a housing having a footprint that includes a width of about 35 mm. and utilizing a rotary actuator for positioning read/write recording elements across the surface of the disk. The disk storage devices further includes a footprint with length of about 50.8 mm., and includes in one embodiment dynamic head loading apparatus for loading the read/write recording elements into operative relationship with the disk. In another embodiment the rigid disk drive utilizes contact start stop loading and unloading of the read/write recording elements. An inertial latch is also provided for preventing rotation of the actuator when the drive is subjected to a rotational force.
摘要翻译：公开了一种刚性盘驱动器信息存储装置，其包括具有在大约33-34mm范围内的外径的刚性盘，壳体具有包括约35mm的宽度的覆盖区。并且利用旋转致动器来将读/写记录元件定位在盘的表面上。磁盘存储设备还包括长度为约50.8mm的占地面积，并且在一个实施例中包括用于将读/写记录元件加载到与盘相关的操作关系的动态磁头加载装置。在另一个实施例中，刚性盘驱动器利用读/写记录元件的接触开始停止加载和卸载。还提供惯性闩锁，用于当驱动器受到旋转力时防止致动器的旋转。

2. 发明授权

US4816938A Process for determining data disk track centers 失效
标题翻译：确定数据磁盘跟踪中心的过程
公开(公告)号：US4816938A
公开(公告)日：1989-03-28
申请号：US77588
申请日：1987-07-24
申请人： Stephen R. Cowen , James S. Toreson , Joseph Y. Chen , David S. Cochran
发明人： Stephen R. Cowen , James S. Toreson , Joseph Y. Chen , David S. Cochran
IPC分类号： G11B5/55 , G11B19/04 , G11B21/08 , G11B5/54 , G11B5/56 , G11B21/10
CPC分类号： G11B21/083 , G11B19/04 , G11B5/5534
摘要： A process for determining the center of data disk tracks. The transducer head is positioned to one side of a track. The head repeatedly reads the track and microsteps across the track. The number of microsteps taken at the position on each side of the center of the track where a certain number of error correction code errors occur, are designated as boundaries of that track. The center of the track is then calculated as being half-way between the boundaries. By using the microstep off-sets for the centers of two tracks on a data disk, a correction factor can be calculated to compensate for thermal expansion of the data disk.
摘要翻译：确定数据磁盘轨道中心的过程。换能器头位于轨道的一侧。头部反复读取轨道上的轨迹和微步。在发生了一定数量的纠错码错误的轨道的中心的每侧的位置处获取的微步数被指定为该轨道的边界。然后将轨道的中心计算为边界之间的中间。通过使用数据磁盘上两个轨道的中心的微步偏移，可以计算校正因子以补偿数据磁盘的热膨胀。

3. 发明授权

US5760986A Microminiature hard disk drive 失效
公开(公告)号：US5760986A
公开(公告)日：1998-06-02
申请号：US420523
申请日：1995-04-10
申请人： James H. Morehouse , Stephen R. Cowen , Steven B. Volk
发明人： James H. Morehouse , Stephen R. Cowen , Steven B. Volk
IPC分类号： G11B5/11 , G11B5/48 , G11B5/54 , G11B5/55 , G11B5/596 , G11B19/20 , G11B21/10 , G11B25/04 , G11B31/00 , G11B33/12 , G11B5/02
CPC分类号： G11B33/121 , G11B19/2009 , G11B21/106 , G11B25/043 , G11B31/00 , G11B5/11 , G11B5/4886 , G11B5/54 , G11B5/5526 , G11B5/59622 , G11B5/59627 , G11B5/59644 , G11B5/5965 , Y10S360/903
摘要： Disclosed is a rigid disk drive information storage device which includes a rigid disk having an outside diameter in the range of about 33-34 mm., with a housing having a footprint that includes a width of about 35 mm. and utilizing a rotary actuator for positioning read/write recording elements across the surface of the disk. The disk storage devices further includes a footprint with length of about 50.8 mm., and includes in one embodiment dynamic head loading apparatus for loading the read/write recording elements into operative relationship with the disk. In another embodiment the rigid disk drive utilizes contact start stop loading and unloading of the read/write recording elements. An inertial latch is also provided for preventing rotation of the actuator when the drive is subjected to a rotational force.

4. 发明授权

US5760983A Method for optimizing AGC in a servo field including multiple use of an AGC sub-field and sub-field ordering 失效
标题翻译：包括多次使用AGC子场和子场排序的伺服场中AGC优化的方法
公开(公告)号：US5760983A
公开(公告)日：1998-06-02
申请号：US250987
申请日：1994-05-31
申请人： Stephen R. Cowen
发明人： Stephen R. Cowen
IPC分类号： G11B5/09 , G11B5/596 , G11B19/00 , G11B19/12 , G11B19/28 , G11B20/10 , G11B20/12 , G11B21/08 , G11B23/36 , G11B27/19 , G11B27/30
CPC分类号： G11B5/09 , G11B19/00 , G11B19/12 , G11B19/28 , G11B20/10 , G11B21/08 , G11B23/36 , G11B27/19 , G11B27/3027 , G11B5/59622 , G11B5/59655 , G11B20/1251 , G11B2220/20 , G11B2220/2516
摘要： The prerecorded embedded servo field includes at least one sub-field of prerecorded information that simultaneously provides (i) data for a first servo function and (ii) data for at least one other servo function. In another embodiment, a prerecorded embedded servo field includes a first sub-field of prerecorded information that simultaneously provides (i) automatic gain control data for a third sub-field and (ii) data for a first servo function, and a second sub-field of prerecorded information that simultaneously provides (i) automatic gain control (AGC) data for the third sub-field and (ii) data for a second servo function. Since the first and the second sub-fields in the servo field of this invention are used for AGC and another servo function, the sub-fields are arranged within the servo field so that the sub-field that requires the least precise AGC control is first and the sub-field that requires the most precise AGC control is last. To provide AGC data for the first sub-field in the servo field of this invention, AGC data are contained in a write-to-read transition area of the data region preceding the first servo sub-field. The sector mark field of this invention is immune to single bit errors. Specifically, the sub-field used for synchronization is designed so that servo synchronization timing is not lost due to a single bit error in the synchronization sub-field or in the sub-fields preceding the synchronization sub-field.
摘要翻译：预先记录的嵌入式伺服字段包括至少一个预先记录的信息的子场，其同时提供（i）第一伺服功能的数据和（ii）至少一个其他伺服功能的数据。在另一个实施例中，预先记录的嵌入式伺服字段包括预先记录的信息的第一子字段，其同时提供（i）第三子场的自动增益控制数据和（ii）用于第一伺服功能的数据，同时提供（i）用于第三子场的自动增益控制（AGC）数据和（ii）用于第二伺服功能的数据的预先记录信息的场。由于本发明的伺服领域中的第一和第二子场用于AGC和另一伺服功能，所以子场被布置在伺服场内，使得需要最不精确的AGC控制的子场是第一并且需要最精确的AGC控制的子场是最后的。为了提供本发明的伺服领域中的第一子场的AGC数据，AGC数据被包含在第一伺服子场之前的数据区的写入 - 读取过渡区域中。本发明的扇区标记字段不受单位错误的影响。具体地，用于同步的子场被设计为使得由于同步子场中的单个位错误或同步子场之前的子场中的伺服同步定时不会丢失。

5. 发明授权

US5321560A Embedded servo system for low power disk drives 失效
标题翻译：用于低功率磁盘驱动器的嵌入式伺服系统
公开(公告)号：US5321560A
公开(公告)日：1994-06-14
申请号：US765348
申请日：1991-09-25
申请人： Stephen R. Cowen
发明人： Stephen R. Cowen
IPC分类号： G11B5/09 , G11B5/596 , G11B19/00 , G11B19/12 , G11B19/28 , G11B20/10 , G11B20/12 , G11B21/08 , G11B23/36 , G11B27/19 , G11B27/30
CPC分类号： G11B5/09 , G11B19/00 , G11B19/12 , G11B19/28 , G11B20/10 , G11B21/08 , G11B23/36 , G11B27/19 , G11B27/3027 , G11B5/59622 , G11B5/59655 , G11B20/1251 , G11B2220/20 , G11B2220/2516
摘要： The servo field includes at least one sub-field of prerecorded information that simultaneously provides (i) data for a first servo function and (ii) data for at least one other servo function. In another embodiment, a prerecorded embedded servo field includes a first sub-field of prerecorded information that simultaneously provides (i) automatic gain control data for a third sub-field and (ii) data for a first servo function, and a second sub-field of prerecorded information that simultaneously provides (i) automatic gain control (AGC) data for the third sub-field and (ii) data for a second servo function. Since the first and the second sub-fields in the servo field of this invention are used for AGC and another servo function, the sub-fields are arranged within the servo field so that the sub-field that requires the least precise AGC control is first and the sub-field that requires the most precise AGC control is last. To provide AGC data for the first sub-field in the servo field of this invention, AGC data is contained in a write-to-read transition area of the data region preceding the first servo sub-field. The sector mark field of this invention is immune to single bit errors. Specifically, the sub-field used for synchronization is designed so that servo synchronization timing is not lost due to a single bit error in the synchronization sub-field or in the sub-fields preceding the synchronization sub-field.
摘要翻译：伺服字段包括至少一个预先记录的信息的子场，其同时提供（i）第一伺服功能的数据和（ii）至少一个其他伺服功能的数据。在另一个实施例中，预先记录的嵌入式伺服字段包括预先记录的信息的第一子字段，其同时提供（i）第三子场的自动增益控制数据和（ii）用于第一伺服功能的数据，同时提供（i）用于第三子场的自动增益控制（AGC）数据和（ii）用于第二伺服功能的数据的预先记录信息的场。由于本发明的伺服领域中的第一和第二子场用于AGC和另一伺服功能，所以子场被布置在伺服场内，使得需要最不精确的AGC控制的子场是第一并且需要最精确的AGC控制的子场是最后的。为了提供本发明的伺服领域中的第一子场的AGC数据，AGC数据被包含在第一伺服子场之前的数据区的写入 - 读取过渡区域中。本发明的扇区标记字段不受单位错误的影响。具体地，用于同步的子场被设计为使得由于同步子场中的单个位错误或同步子场之前的子场中的伺服同步定时不会丢失。

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