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1.发明授权Method and apparatus for determining and using head parameters in a helical scan recorder 失效用于在螺旋扫描记录仪中确定和使用头部参数的方法和装置
公开(公告)号：US5973875A
公开(公告)日：1999-10-26
申请号：US842669
申请日：1997-04-15
IPC分类号： G11B5/027 , G11B5/008 , G11B5/48 , G11B5/53 , G11B5/588 , G11B15/02 , G11B15/18 , G11B15/20 , G11B15/467 , G11B15/473 , G11B15/60 , G11B27/032 , G11B27/036 , G11B27/13 , G11B27/36 , G11B33/10 , G11B5/584
CPC分类号： G11B15/1875 , G11B15/026 , G11B15/20 , G11B15/4671 , G11B15/4672 , G11B15/4673 , G11B15/4677 , G11B15/4678 , G11B15/4736 , G11B15/602 , G11B27/036 , G11B27/13 , G11B27/36 , G11B33/10 , G11B5/0086 , G11B5/4893 , G11B5/531 , G11B5/534 , G11B2220/90 , G11B27/032
摘要： Methods of calibrating a helical scan recorder include transporting a storage media past a drum at a controlled linear velocity and recording tracks on the media using a write head. During a read-after-write operation, servo signals recorded on the tracks are read. The servo signals from the tracks are used to determine an axial offset variance of the write head and a read head on the drum. In one mode, calibration is achieved for a first helical scan recorder which does not have a capstan, by installing a drum of the recorder in a second helical scan recorder, using the second recorder to record servo signals on two tracks, reading the servo signals from those two tracks in the second recorder, using the servo signals to determine axial offset variance, and storing a value indicative of axial offset variance in a memory of the first recorder. The axial offset variance is used in a write splice operation and, in one mode, to determine linear velocity of the media.
摘要翻译： 校准螺旋扫描记录器的方法包括以受控的线速度运送存储介质通过滚筒并使用写入头在介质上记录轨道。 在读写操作期间，读取记录在轨道上的伺服信号。 来自轨迹的伺服信号用于确定写头和滚筒上的读头的轴向偏移方差。 在一种模式中，通过在第二螺旋扫描记录器中安装记录器的滚筒，使用第二记录器在两个磁道上记录伺服信号，读取伺服信号，对不具有绞盘的第一螺旋扫描记录器进行校准 从第二记录器中的这两条轨道，使用伺服信号来确定轴向偏移方差，并将指示轴偏移方差的值存储在第一记录器的存储器中。 轴向偏移方差用于写接头操作，并且在一种模式下用于确定介质的线速度。
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2.发明授权Method and apparatus for determining and using head parameters in a hellical scan recorder 失效用于在螺旋扫描记录仪中确定和使用头部参数的方法和装置
公开(公告)号：US5731921A
公开(公告)日：1998-03-24
申请号：US561155
申请日：1995-11-21
IPC分类号： G11B5/027 , G11B5/008 , G11B5/48 , G11B5/53 , G11B5/588 , G11B15/02 , G11B15/18 , G11B15/20 , G11B15/467 , G11B15/473 , G11B15/60 , G11B27/032 , G11B27/036 , G11B27/13 , G11B27/36 , G11B33/10 , G11B5/02
CPC分类号： G11B15/1875 , G11B15/026 , G11B15/20 , G11B15/4671 , G11B15/4672 , G11B15/4673 , G11B15/4677 , G11B15/4678 , G11B15/4736 , G11B15/602 , G11B27/036 , G11B27/13 , G11B27/36 , G11B33/10 , G11B5/0086 , G11B5/4893 , G11B5/531 , G11B5/534 , G11B2220/90 , G11B27/032
摘要： Methods of calibrating a helical scan recorder include transporting a storage media past a drum at a controlled linear velocity and recording tracks on the media using a write head. During a read-after-write operation, servo signals recorded on the track; are read. The servo signals from the tracks are used to determine an axial offset variance of the write head and a read head on the drum. In one mode, calibration is achieved for a first helical scan recorder which does not have a capstan, by installing a drum of the recorder in a second helical scan recorder, using the second recorder to record servo signals on two tracks, reading the servo signals from those two tracks, second recorder, using the servo signals to determine axial offset variance, and storing a value indicative of axial offset variance in a memory of the first recorder. The axial offset variance is used in a write splice operation and, in one mode, to determine linear velocity of the media.
摘要翻译： 校准螺旋扫描记录器的方法包括以受控的线速度运送存储介质通过滚筒并使用写入头在介质上记录轨道。 在读写操作期间，记录在轨道上的伺服信号; 被阅读 来自轨迹的伺服信号用于确定写头和滚筒上的读头的轴向偏移方差。 在一种模式中，通过在第二螺旋扫描记录器中安装记录器的滚筒，使用第二记录器在两个磁道上记录伺服信号，读取伺服信号，对不具有绞盘的第一螺旋扫描记录器进行校准 从这两个轨道，第二记录器，使用伺服信号来确定轴向偏移方差，以及将指示轴偏移方差的值存储在第一记录器的存储器中。 轴向偏移方差用于写接头操作，并且在一种模式下用于确定介质的线速度。
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公开(公告)号：US5068757A
公开(公告)日：1991-11-26
申请号：US433977
申请日：1989-11-09
IPC分类号： G11B5/588 , G11B15/467
CPC分类号： G11B5/588
摘要： In a servo tracking method and apparatus, a servo head (S) of a helical scan recorder (30) endeavors to travel equidistant between two servo signal-bearing stripes recorded on the tape (32). The recorder (30) determines a reference-crossing time at which the servo head (S) begins to cross a horizontal reference line (606) drawn with respect to the beginning of a stripe on the tape (32). The servo head (S) samples the amplitude of a servo signal provided on the tape (32) at a plurality of predetermined times after the reference-crossing time. A servo tracking circuit (175) uses the amplitude of the servo signal at the predetermined sampling times to determine how to adjust the position of said head (S) relative to the pitch of said stripe.
摘要翻译： 在伺服跟踪方法和装置中，螺旋扫描记录器（30）的伺服头（S）在记录在带子（32）上的两个伺服信号承载条带之间等距移动。 记录器（30）确定伺服头（S）开始穿过相对于带（32）上的条纹开头绘制的水平参考线（606）的参考交叉时间。 伺服头（S）在参考交叉时间之后的多个预定时间对提供在带（32）上的伺服信号的振幅进行采样。 伺服跟踪电路（175）使用在预定采样时间的伺服信号的振幅来确定如何调节所述磁头（S）相对于所述磁条间距的位置。
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公开(公告)号：US4864511A
公开(公告)日：1989-09-05
申请号：US7047
申请日：1987-01-27
申请人： Michael E. Moy , Stuart W. Bray , Paul Kummli , Kelly J. Beavers , Frank Goodknight , James R. Baer , Timothy C. Hughes , John L. Seabury , Steven F. Nugent , Thomas J. Studebaker , Eugene Kutasy , Richard G. Sellke
发明人： Michael E. Moy , Stuart W. Bray , Paul Kummli , Kelly J. Beavers , Frank Goodknight , James R. Baer , Timothy C. Hughes , John L. Seabury , Steven F. Nugent , Thomas J. Studebaker , Eugene Kutasy , Richard G. Sellke
CPC分类号： G06F3/0601 , G11B15/688 , G11B27/002 , G11B27/36 , G06F2003/0698 , G11B2220/41 , G11B2220/90
摘要： A storage and retrieval subsystem in a data processing system includes a plurality of magnetic tape cartridges, a host computer, and a library storage module storing the plurality of magnetic tape cartridges in substantially upright positions. The library storage module includes a first cylindrical array of storage cells centered about a vertical axis, a second cylindrical array concentrically arranged about the first array, and a library tape unit including a plurality of tape drives, each of the tape drives being adapted to receive one of the magnetic tape cartridges in a substantially horizontal transducing position. A robot within the library storage module is used to transfer selected ones of the magnetic tape cartridges between their substantially upright positions and the substantially horizontal transducing positions at a selected tape drive. A first controller outboard the channel communicating with the host computer is adapted to receive commands from the host computer for interfacing between the host computer and the library storage module, and a second controller inboard of the channel is adapted to receive commands from the outboard controller for interfacing between the outboard controller and the robot.
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公开(公告)号：US07158338B2
公开(公告)日：2007-01-02
申请号：US10854078
申请日：2004-05-24
申请人： John A. Koski , Timothy C. Hughes
发明人： John A. Koski , Timothy C. Hughes
CPC分类号： G11B5/584 , G11B27/107 , G11B27/3027 , G11B2220/90
摘要： Methods and systems for sensing a position of a transducer head with respect to a storage medium. One method includes generating a read signal from a servo track stored on a magnetic storage medium. The servo track includes servo frames of magnetic flux transitions forming detectable servo marks, the servo marks forming a tone field of repeating servo marks oriented at a first azimuth angle and a mid-frame synchronization mark incorporated within the tone field, wherein the tone field provides a metric reference for dimensional measurements between features within the servo frame(s). The number of servo marks in the tone field of each servo frame along a longitudinal direction of the servo track before the mid-frame synchronization mark and after the mid-frame synchronization mark varies with lateral position.
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6.发明授权Alternating-azimuth angle helical track format using grouped same-azimuth angle heads 失效使用分组的相同方位角头的交替方位角螺旋轨道格式公开(公告)号：US06985323B2
公开(公告)日：2006-01-10
申请号：US10131499
申请日：2002-04-25
IPC分类号： G11B15/14
CPC分类号： G11B5/0086 , G11B5/531 , G11B5/534 , G11B15/125 , G11B15/14 , G11B15/6655 , G11B15/6656
摘要： A helical scan tape recorder (30) comprises a rotatable scanner (85) upon which is mounted a first set of plural transducing heads (W1, W3) and a second set of transducing heads (W2, W4). A transport system transports magnetic tape (31) proximate the rotatable scanner in a manner so that information is transduced by at least one of the transducing heads during a revolution of the scanner. The sets of transducing heads are so mounted on the scanner with respect to azimuthal orientation of the transducing heads that all tracks transduced by the transducing heads have a desired width regardless of an error in physical distance separating the sets of transducing heads. In one aspect, the first set of plural transducing heads comprises a first head (W1) and a third head (W3), and the second set of plural transducing heads comprises a second head (W2) and a fourth head (W4). The sets of transducing heads are mounted on the scanner so the first head and the third head transduce respective tracks during a first angular phase of the rotation of the scanner, and so that the second head and the fourth head transduce, during a second angular phase of the rotation of the scanner, respective tracks which partially overlap a previously-transduced track. The tracks on the tape alternate according to differing azimuthal orientation.
摘要翻译： 螺旋扫描磁带录像机（30）包括可旋转的扫描器（85），其上安装有第一组多个换能头（W1，W2）和第二组换能头（W 2，W 4）。 传送系统以可旋转扫描器的方式传送磁带（31），使得信息在扫描仪的转动期间由至少一个传感头传导。 传感头组相对于转换头的方位取向安装在扫描仪上，所有的传感头转向的轨道都具有所需的宽度，而不考虑分离传感头组的物理距离的误差。 一方面，第一组多个转换头包括第一头（W 1）和第三头（W 3），并且第二组多个换能头包括第二头（W 2）和第四头（W 4）。 传感头组安装在扫描器上，使得第一头部和第三头部在扫描器的旋转的第一角度相位期间转换相应的轨道，并且使得第二头部和第四头部在第二角度相位 扫描仪旋转的各个轨道与先前转换的轨道部分重叠。 磁带上的轨道根据不同的方位取向交替。
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公开(公告)号：US4577811A
公开(公告)日：1986-03-25
申请号：US706553
申请日：1985-02-28
摘要： Apparatus and methods are disclosed for properly positioning the machine reel in a magnetic tape drive containing an automatic tape threading mechanism, wherein the file reel consists of a tape cartridge with tape attached to a leader block. The automatic threading mechanism connects to the leader block and pulls the tape through the tape path to insert the leader block into the hub of the machine reel. However, before the leader block can be inserted into the machine reel hub, the machine reel must be properly aligned to receive the leader block. The present invention provides apparatus and methods for properly aligning the machine reel to receive the tape leader block. The disclosure also provides a means to detect when the last wrap of tape is being removed from the machine reel hub during an unload operation and stop the machine reel at the proper angular location so that the tape leader block can be removed from the hub without damage to the hub or the leader block.
摘要翻译： 公开了用于将机器卷盘正确地定位在包含自动带穿线机构的磁带驱动器中的装置和方法，其中文件卷筒由附接到引导块的带的带盒组成。 自动穿线机构连接到引导块，并通过磁带路径拉动磁带，将引导块插入机器卷轴的轮毂。 然而，在引导块可以插入机器卷轴毂之前，机器卷轴必须正确对齐以接收引导块。 本发明提供了用于使机器卷轴正确对准以接收带引导块的装置和方法。 本公开还提供了一种方法，用于检测在卸载操作期间胶带的最后卷绕何时从机器卷轴轮毂移除，并将机器卷轴停止在适当的角度位置，使得带引导块可以从轮毂移除而不损坏 到枢纽或领导块。
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公开(公告)号：US07245453B2
公开(公告)日：2007-07-17
申请号：US11602871
申请日：2006-11-20
申请人： John A. Koski , Timothy C. Hughes
发明人： John A. Koski , Timothy C. Hughes
IPC分类号： G11B5/584
CPC分类号： G11B5/584 , G11B27/107 , G11B27/3027 , G11B2220/90
摘要： Methods and systems for sensing a position of a transducer head with respect to a storage medium. One method includes generating a read signal from a servo track stored on a magnetic storage medium. The servo track includes servo frames of magnetic flux transitions forming detectable servo marks, the servo marks forming a tone field of repeating servo marks oriented at a first azimuth angle and a mid-frame synchronization mark incorporated within the tone field, wherein the tone field provides a metric reference for dimensional measurements between features within the servo frame(s). The number of servo marks in the tone field of each servo frame along a longitudinal direction of the servo track before the mid-frame synchronization mark and after the mid-frame synchronization mark varies with lateral position.
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9.发明授权Method and apparatus for determining head parameter for helical scan recorder 失效用于确定螺旋扫描记录仪头部参数的方法和装置
公开(公告)号：US5689382A
公开(公告)日：1997-11-18
申请号：US476370
申请日：1995-06-07
申请人： Timothy C. Hughes
发明人： Timothy C. Hughes
IPC分类号： G11B5/027 , G11B5/008 , G11B5/48 , G11B5/53 , G11B5/588 , G11B15/02 , G11B15/18 , G11B15/20 , G11B15/467 , G11B15/473 , G11B15/60 , G11B27/032 , G11B27/036 , G11B27/13 , G11B27/36 , G11B33/10 , G11B5/596
CPC分类号： G11B15/1875 , G11B15/026 , G11B15/20 , G11B15/4671 , G11B15/4672 , G11B15/4673 , G11B15/4677 , G11B15/4678 , G11B15/4736 , G11B15/602 , G11B27/036 , G11B27/13 , G11B27/36 , G11B33/10 , G11B5/0086 , G11B5/4893 , G11B5/531 , G11B5/534 , G11B2220/90 , G11B27/032
摘要： Methods and apparatus are provided for determining a servo offset value and a take-up reel velocity for imparting a desired linear velocity to tape in a helical scan recording system (20). The helical scan recorder system records information on a magnetic tape (22), the magnetic tape being transported between a supply reel (24) and a take-up reel (26) in the helical scan recorder through a tape path, which tape path includes at least a partial wrapping of the tape around a drum (30) of the helical scan recorder. The methods include moving the tape from the supply reel to the take-up reel whereby the tape travels a predetermined displacement; rewinding the tape by the tape extraction displacement and determining an angular rewind displacement of the take-up reel; and using the determined displacements to ascertain parameters including a desired velocity of the take-up reel.
摘要翻译： 提供了用于确定伺服偏移值和卷取卷轴速度的方法和装置，用于在螺旋扫描记录系统（20）中向带施加期望的线速度。 螺旋式扫描记录器系统通过磁带路径将信息记录在磁带（22）上，该磁带通过磁带路径在螺旋扫描记录器中在供电卷轴（24）和卷取卷轴（26）之间运输，该磁带路径包括 将所述带至少部分地缠绕在所述螺旋扫描记录器的鼓（30）周围。 所述方法包括将带从供带盘移动到卷带盘，由此带行进预定位移; 通过磁带提取位移来重绕磁带并确定卷绕卷轴的倒角位移; 并且使用确定的位移来确定包括卷取卷轴的期望速度的参数。
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公开(公告)号：US07522372B2
公开(公告)日：2009-04-21
申请号：US11602872
申请日：2006-11-20
申请人： John A. Koski , Timothy C. Hughes
发明人： John A. Koski , Timothy C. Hughes
IPC分类号： G11B5/584
CPC分类号： G11B5/584 , G11B27/107 , G11B27/3027 , G11B2220/90
摘要： Methods and systems for sensing a position of a transducer head with respect to a storage medium. One method includes generating a read signal from a servo track stored on a magnetic storage medium. The servo track includes servo frames of magnetic flux transitions forming detectable servo marks, the servo marks forming a tone field of repeating servo marks oriented at a first azimuth angle and a mid-frame synchronization mark incorporated within the tone field, wherein the tone field provides a metric reference for dimensional measurements between features within the servo frame(s). The number of servo marks in the tone field of each servo frame along a longitudinal direction of the servo track before the mid-frame synchronization mark and after the mid-frame synchronization mark varies with lateral position.
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