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公开(公告)号：US5218585A
公开(公告)日：1993-06-08
申请号：US591157
申请日：1990-10-01
申请人： Henry E. Aviles , Edwin R. Childers , Tetsuya Kokubo , Hiroshi Matsushita , David P. McReynolds , Koichiro Nanke
发明人： Henry E. Aviles , Edwin R. Childers , Tetsuya Kokubo , Hiroshi Matsushita , David P. McReynolds , Koichiro Nanke
CPC分类号： G11B33/121 , G11B33/08
摘要： The invention is an optical disk drive which controls mechanical feedback to a focus servo actuator by shifting the phase of the feedback along its path back to the servo an additional 180 degrees to eliminate the degradation of the phase margin and prevent servo instability. The phase shift may be induced at any practical location along the feedback path. The phase shift is preferably induced by creating a slit or opening in the base of the optical disk drive. The opening must be positioned properly, shaped appropriately, and large enough to create a new base resonant frequency which prevents the opposite sides thereof from vibrating in phase. Alternatively, the phase shift may be induced by altering other components in the feedback path. For example, the phase shift can be induced by modifying the spindle motor assembly to create a new spindle resonant frequency.
摘要翻译： 本发明是一种光盘驱动器，其通过将反馈的相位沿着其路径移回到伺服附加180度来控制对聚焦伺服致动器的机械反馈，以消除相位裕度的劣化并防止伺服不稳定性。 可以在沿着反馈路径的任何实际位置处诱导相移。 相移优选通过在光盘驱动器的基座中形成狭缝或开口而引起。 开口必须适当地定位，适当地成形，并且足够大，以产生新的基本共振频率，防止其相对侧相位振动。 或者，可以通过改变反馈路径中的其它组件来引起相移。 例如，可以通过修改主轴电机组件以产生新的主轴谐振频率来引起相移。
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公开(公告)号：US5235574A
公开(公告)日：1993-08-10
申请号：US787205
申请日：1991-11-04
CPC分类号： G11B7/1356 , G11B7/0901 , G11B7/094
摘要： An optical disk drive is disclosed in which sensing the position of a tilting prism driven by a fine tracking actuator uses the optical beam prior to its interaction with an optical disk. The optical beam emitted by a laser is redirected by the tilting prism. Most of the optical beam is reflected by the tilting prism in a direction through an objective lens for focused interaction with an optical disk. assuming a disk is mounted in the optical disk drive. The remainder of the optical beam is transmitted through the tilting prism, including any offset of the beam resulting from the refraction characteristics of the tilting prism, and received by a split far field detector. The split far field detector measures the offset of the optical beam which is a direct measure of the rotational position of the tilting prism. A relative position error signal is then generated and input to the coarse tracking actuator to coordinate its operation with that of the fine tracking actuator.
摘要翻译： 公开了一种光盘驱动器，其中感测由精细跟踪致动器驱动的倾斜棱镜的位置在与光盘相互作用之前使用光束。 由激光发射的光束被倾斜棱镜重定向。 大部分光束被倾斜棱镜沿着通过物镜的方向反射，用于与光盘的聚焦相互作用。 假设磁盘安装在光盘驱动器中。 光束的其余部分通过倾斜棱镜透射，包括由倾斜棱镜的折射特性产生的并由分离远场检测器接收的光束的任何偏移。 分裂远场检测器测量作为倾斜棱镜的旋转位置的直接测量的光束的偏移。 然后产生相对位置误差信号并输入到粗跟踪致动器以将其操作与精细跟踪致动器的操作协调。
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3.发明授权Controlling position of a rotatable transducer in devices employing such transducers 失效控制可转换传感器在使用这种传感器的设备中的位置
公开(公告)号：US5097361A
公开(公告)日：1992-03-17
申请号：US636871
申请日：1990-10-19
CPC分类号： G11B21/003 , G11B7/093
摘要： An optical disk recorder, or other apparatus, use a rotary actuator for supporting a work tool, such as an objective lens which is pivotable or rotatable without a pivot pin. Rotation causing or tracking coils on the rotary actuator are disposed adjacent to permanent magnets to selectively effect rotation of the rotary actuator about the pivot pin. A bias electrical current is supplied to these coils to generate magnetic fields which are in opposite rotational senses; such fields force the rotary actuator against the pin in such a manner that the point of contact between the rotary actuator and the pin follows the rotation of the actuator about the pin.
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4.发明申请公开(公告)号：US20110170214A1
公开(公告)日：2011-07-14
申请号：US12686302
申请日：2010-01-12
CPC分类号： G11B15/62 , G11B15/43 , G11B15/602
摘要： Magnetic tape devices encounter read and/or write errors when the tape is not being passed across the head with the proper tension and/or skew angle. According to one embodiment, a system which corrects for these problems comprises a head having an array of at least one of readers and writers, a drive mechanism for passing a magnetic recording tape over the head, a skew-inducing mechanism coupled to the head for adjusting a skew angle of a longitudinal axis of the array relative to a direction normal to a direction of tape travel over the head, and a controller in communication with the head. The system also determines a tape dimensional stability state of the tape and adjust the skew angle away from normal to the direction of tape travel and lowers a tension of the tape across the head if the tape dimensional stability state is in a contracted state.
摘要翻译： 当磁带没有以适当的张力和/或倾斜角度穿过磁头时，磁带设备会遇到读取和/或写入错误。 根据一个实施例，校正这些问题的系统包括具有读取器和写入器中的至少一个的阵列的头部，用于将磁记录带通过头部的驱动机构，耦合到头部的偏斜引导机构 调整所述阵列的纵向轴线相对于垂直于所述头部上的带行进方向的方向的倾斜角度，以及与所述头部连通的控制器。 该系统还确定胶带的胶带尺寸稳定性状态，并且如果胶带尺寸稳定状态处于收缩状态，则将偏斜角度调整为离开行走方向远离纸张行进方向并降低胶带横过头部的张力。
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公开(公告)号：US5268808A
公开(公告)日：1993-12-07
申请号：US990157
申请日：1992-12-14
申请人： Edwin R. Childers
发明人： Edwin R. Childers
IPC分类号： G11B23/03
CPC分类号： G11B23/0316
摘要： Four embodiments of disk cartridges are described. Each embodiment is made from a unitary blank of foldable material, such as paperboard or plastic. The cartridges are particularly useful for containing and protecting 130 mm optical disks. Shown are interior brackets integrally formed on panels of the cartridges and that extend to and engage a facing panel for both stiffening the cartridge axially of the contained disk and for physically restraining the contained disk from radial movements in the cartridge. The cartridge may have information containing holes. The interior brackets also stabilize the panel immediately adjacent the hole for enabling mechanical hole sensing. An interior bracket is shown as being integral with one end wall of the cartridge. Notches in two side walls of the cartridge are provided for facilitating automatic cartridge handling.
摘要翻译： 描述了磁盘盒的四个实施例。 每个实施例由诸如纸板或塑料的可折叠材料的整体坯料制成。 这些墨盒对于容纳和保护130 mm光盘特别有用。 示出了整体形成在盒的板上的内部支架，并且延伸到并接合面板，用于使容纳的盘的轴向加强盒并且用于物理地限制所容纳的盘在盒中的径向移动。 墨盒可能包含有孔的信息。 内部支架也使紧邻孔的面板稳定，以实现机械孔感测。 内部支架被示出为与盒的一个端壁成一体。 提供了盒的两个侧壁中的凹口以便于自动盒的处理。
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公开(公告)号：US07724466B2
公开(公告)日：2010-05-25
申请号：US12036905
申请日：2008-02-25
IPC分类号： G11B5/584
CPC分类号： G11B5/584
摘要： A method and system for servo stripe width detection and compensation including moving a magnetic tape in a first direction across a magnetic tape head, the magnetic tape having a servo band including a first servo pattern and a second servo pattern, the magnetic tape head having a servo element; detecting a leading edge and a trailing edge of the first servo pattern with the servo element; detecting a leading edge and a trailing edge of the second servo pattern with the servo element; determining a first time from the leading edge of the first servo pattern to the leading edge of the second servo pattern; determining a second time from the trailing edge of the first servo pattern to the trailing edge of the second servo pattern; and determining a correction value from a difference between the first time and the second time.
摘要翻译： 一种用于伺服条宽检测和补偿的方法和系统，包括在磁带头上沿第一方向移动磁带，磁带具有包括第一伺服模式和第二伺服模式的伺服带，磁带头具有 伺服元件 用伺服元件检测第一伺服模式的前缘和后缘; 用伺服元件检测第二伺服模式的前缘和后缘; 确定从第一伺服模式的前沿到第二伺服模式的前沿的第一时间; 确定从第一伺服模式的后沿到第二伺服模式的后沿的第二时间; 以及从所述第一时间和所述第二时间之间的差确定校正值。
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7.发明授权Rotary actuator with a magnetic bias bearing configuration for rotating an optical element in an optical data storage system 失效具有用于旋转光学数据存储系统中的光学元件的磁偏置轴承配置的旋转致动器
公开(公告)号：US5563871A
公开(公告)日：1996-10-08
申请号：US484033
申请日：1995-06-07
IPC分类号： G02B7/182 , G11B7/085 , G11B7/09 , G11B11/105 , H02K5/167 , H02K26/00 , G11B7/095 , G02B26/08 , G11B7/135 , H02K1/17
CPC分类号： G11B7/08564 , G02B7/1828 , G11B7/0901 , H02K26/00 , G11B11/10576 , H02K5/167
摘要： A rotary actuator utilizing a magnetically biased bearing. A magnetized rotor is held in close proximity to a ferromagnetic mount. The magnetic flux created by the magnetic rotor through the ferromagnetic mount creates a magnetic bias force on the rotor bearing surface. The rotary actuator with the magnetically biased bearing rotates a mounted mirror to direct a reading laser beam to act as a fine tracking actuator within an optical data storage system.
摘要翻译： 一种利用磁偏置轴承的旋转致动器。 磁化转子被固定在铁磁座上。 磁转子通过铁磁座产生的磁通在转子轴承表面产生磁偏压力。 具有磁偏置轴承的旋转致动器旋转安装的反射镜以引导读取激光束在光学数据存储系统内作为精细跟踪致动器。
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8.发明申请CUSTOMIZING A RANGE OF ACCEPTABLE TAPE DIMENSIONAL STABILITY WRITE CONDITIONS 有权定制可接受的带尺寸稳定性写入条件的范围公开(公告)号：US20130229724A1
公开(公告)日：2013-09-05
申请号：US13411152
申请日：2012-03-02
CPC分类号： G11B5/00817 , G11B5/00813 , G11B5/584
摘要： Described are embodiments of an invention for customizing the range of acceptable write conditions to a tape of a tape cartridge that contracts or expands laterally based on environmental conditions. The tape drive utilizes servo information to determine if the tape has expanded or contracted from the nominal dimension and to determine the magnitude of the expansion or contraction. In the case of expansion, the magnitude of the determined expansion and the stored maximum amount of contraction must be below a predetermined threshold value to allow a write. In the case of contraction, the magnitude of the determined contraction and the stored magnitude of expansion must be below the same predetermined threshold value to allow a write. If the determined magnitude of contraction or expansion is greater than the stored magnitude of contraction or expansion, respectively, then the new extreme is stored.
摘要翻译： 描述了根据本发明的实施例，用于根据环境条件将可接受的写入条件的范围定制到横带收缩或扩展的带盒的带。 磁带驱动器利用伺服信息来确定磁带是否从标称尺寸扩展或缩小，并确定扩展或收缩的大小。 在膨胀的情况下，确定的膨胀的幅度和存储的最大收缩量必须低于预定的阈值以允许写入。 在收缩的情况下，确定的收缩的幅度和所存储的扩展幅度必须低于相同的预定阈值以允许写入。 如果确定的收缩或膨胀的大小分别大于收集或膨胀的存储量，则存储新的极限。
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公开(公告)号：US06802469B2
公开(公告)日：2004-10-12
申请号：US10356993
申请日：2003-02-03
IPC分类号： G11B2304
CPC分类号： G11B23/107
摘要： A tape cartridge comprising a housing, a tape reel disposed within that housing, where that tape reel is capable of rotation around a first axis, and where that tape reel includes a hub and a reel coupling which is engageable with a motor coupling for rotation of the tape reel. The tape cartridge further includes a brake plate disposed within the hub, where that brake plate is capable of moving in a first direction and in an opposing second direction along the first axis, but where the brake plate is not capable of rotation around the first axis. The brake plate includes a first side, an opposing second side, a brake plate gear disposed on the second side, and a fixturing assembly disposed on the first side. The tape cartridge further includes a clutch plate disposed within the hub, where that clutch plate is capable of moving in a first direction and in an opposing second direction along the first axis, and where that clutch plate is capable of rotation around the first axis. The clutch plate includes a first surface, an opposing second surface, where the second side of the clutch plate is rotatably disposed on the second side of the brake plate, and where one or more release pins are disposed on the first surface of the clutch plate, and where those release pins each include a distal end which extends through, and outwardly from, the cartridge.
摘要翻译： 一种盒式磁带，包括壳体，设置在该壳体内的磁带盘，其中所述磁带卷盘能够围绕第一轴线旋转，并且所述磁带卷轴包括轮毂和可与电动机联轴器接合以便旋转的卷轴联接器 磁带卷轴。 带盒还包括设置在轮毂内的制动板，其中该制动板能够沿着第一轴线沿第一方向和相反的第二方向移动，但是制动板不能围绕第一轴线旋转 。 制动板包括第一侧，相对的第二侧，设置在第二侧的制动板齿轮，以及设置在第一侧的固定组件。 带盒还包括设置在轮毂内的离合器片，其中离合器片能够沿着第一轴线沿第一方向和相反的第二方向移动，并且该离合器片能够围绕第一轴线旋转。 离合器板包括第一表面和相对的第二表面，其中离合器片的第二侧可旋转地设置在制动板的第二侧上，并且其中一个或多个释放销设置在离合器片的第一表面上 ，并且其中那些释放销各自包括延伸穿过该盒的远端。
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公开(公告)号：US5610902A
公开(公告)日：1997-03-11
申请号：US679165
申请日：1996-07-12
申请人： Edwin R. Childers , Michael Henry
发明人： Edwin R. Childers , Michael Henry
IPC分类号： G11B17/04 , G11B17/22 , G11B23/00 , G11B23/023 , G11B23/03
CPC分类号： G11B17/047 , G11B23/0317 , G11B17/225
摘要： A cartridge which comprises an adapter cartridge and a caddy is employed for containing a hubless optical disk which can be processed in a standard optical disk drive for cartridges, such as an optical disk drive for an optical disk storage library. The adapter cartridge and the caddy are each provided with a recess so that when the adapter cartridge and the caddy are mated an enclosure is provided for the disk. The adapter cartridge carries a floating hub which engages a spindle in a drive for rotating the disk. The standard drive has a shutter arm which is employed for first ejecting the adapter cartridge from the drive and then is employed for ejecting the caddy and the disk from the adapter cartridge. This makes the caddy and disk readily accessible to a picker of a storage library for transport purposes or to an operator.
摘要翻译： 包括适配器盒和盒的盒式磁带被用于容纳可在用于光盘存储库的光盘驱动器的用于盒的标准光盘驱动器中处理的无轮毂光盘。 适配器盒和盒都各自设置有凹部，使得当适配器盒和盒配合时，为盘提供外壳。 适配器盒携带浮动轮毂，其将主轴接合在用于旋转盘的驱动器中。 标准驱动器具有用于首先从驱动器弹出适配器盒的快门臂，然后用于将卡盘和盘从适配器盒中弹出。 这使得用于运输目的的存储库的拾取器或操作者可以容易地访问该盒子和盘。
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