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1.发明授权
公开(公告)号：US5191492A
公开(公告)日：1993-03-02
申请号：US931110
申请日：1992-08-17
申请人： Ashok B. Nayak , Donald Schilling
发明人： Ashok B. Nayak , Donald Schilling
CPC分类号： G11B5/5504 , G11B5/5508 , G11B5/584 , G11B5/588 , G11B33/08 , G11B5/00817
摘要： Tape head positioning apparatus that includes a head carriage frame and a parallel beam positioning structure supported by the head carriage for supporting the magnetic tape head and for variably positioning the magnetic tape head relative to the carriage along a path generally transverse to the tape travel direction. The parallel beam positioning structure includes parallel support beams secured at their ends to the head carriage. The magnetic tape head is secured between the bender beam at a location generally between their ends. In a particular embodiment of the parallel beam positioning apparatus, the parallel support beams comprise first and second resilient reed beams having their ends secured to the head carriage and configured to be deflectable in a direction transverse to the tape travel direction. A voice coil linear motor deflects the reed beams pursuant to a control signal to move the magnetic tape head along the path transverse to the tape travel direction. In a further embodiment of the parallel beam positioning apparatus, the support beams comprise first and second parallel piezoelectric bender beams having their ends secured to the head carriage and configured to deflect in a direction transverse to the tape travel direction in response to a control signal. Deflection of the bender beams pursuant to the control signal displaces the magnetic tape head along the path transverse to the tape travel direction.
摘要翻译： 磁带头定位装置包括磁头支架框架和由磁头支架支撑的平行光束定位结构，用于支撑磁带头，并且用于相对于支架沿着大致横向于磁带行进方向的路径可变地定位磁带头。 平行光束定位结构包括在其端部固定到头部托架的平行支撑梁。 磁带头固定在通常在其端部之间的位置处的弯曲梁之间。 在平行光束定位装置的特定实施例中，平行支撑梁包括第一和第二弹性簧片梁，其第一和第二弹性簧片梁的端部固定到磁头滑架并且被构造成可沿横向于磁带行进方向的方向偏转。 音圈线性电机根据控制信号使簧片光束偏转，以使磁带头沿横向于磁带行进方向的路径移动。 在平行光束定位装置的另一实施例中，支撑梁包括第一和第二平行压电弯曲梁，其端部固定到头部托架，并且构造成响应于控制信号沿横向于磁带行进方向的方向偏转。 根据控制信号的弯曲光束的偏转使磁带头沿横向于磁带行进方向的路径移位。
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2.发明授权
公开(公告)号：US5371636A
公开(公告)日：1994-12-06
申请号：US926743
申请日：1992-08-06
CPC分类号： G11B5/5504 , G11B5/588 , G11B33/08 , G11B5/00817
摘要： Apparatus for fine positioning a tape head relative to a head carriage that is coarsely positionable by a lead screw. The fine positioning apparatus includes parallel first and second resilient support beams oriented generally parallel to the direction of tape travel and having their ends fixedly secured to the head carriage so as to be deflectable in a direction transverse to the direction of tape travel. The centers of the parallel first and second support beams have their centers secured to a tape head frame which contains the tape. A linear motor drives the tape head frame against the resilience of the first and second resilient support beams in response to a drive signal which, for example, is derived from tracking error information produced pursuant to reading of servo information on tape. Pursuant to the displacement of the tape head frame against the resilience of the support beams, the magnetic tape head is moved along a linear path transverse to the tape travel direction. For operation with tapes without servo information on tape, a piezoelectric transducer detects the deflection of one of the support beams and provides an output which is utilized to provide damping of the natural resonance the spring/mass system that includes the first and second resilient support beams and the tape head and tape head frame supported thereby. Alternatively, the operation with tapes without servo tracks can be open-loop with the damping being provided by damping members disposed symmetrically on either side of the tape head frame.
摘要翻译： 用于将磁带头相对于可由导螺杆粗调定位的磁头托架精细定位的装置。 精细定位装置包括平行的第一和第二弹性支撑梁，该弹性支撑梁大致平行于磁带行进方向定向，并且其端部固定地固定到磁头托架，以便能够沿横向于磁带移动方向的方向偏转。 平行的第一和第二支撑梁的中心的中心固定到包含带的带头框架上。 线性马达响应于驱动信号抵抗第一和第二弹性支撑梁的弹性来驱动磁带头架，驱动信号例如是根据在磁带上读取伺服信息而产生的跟踪误差信息导出的。 根据磁头框架抵抗支撑梁的弹性的位移，磁带头沿横向于磁带行进方向的线性路径移动。 对于在磁带上没有伺服信息的磁带的操作，压电换能器检测支撑梁中的一个的偏转并且提供输出，该输出用于提供包括第一和第二弹性支撑梁的弹簧/质量系统的自然共振的阻尼 并且由此支撑磁带头和磁带头框架。 或者，具有无伺服磁道的磁带的操作可以是开环的，其中阻尼由对称地布置在磁带头框架的任一侧上的阻尼构件提供。
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公开(公告)号：US08599519B2
公开(公告)日：2013-12-03
申请号：US13249627
申请日：2011-09-30
申请人： Ashok B. Nayak , Turguy Goker , Ming-Chih Weng , James Mark Decot
发明人： Ashok B. Nayak , Turguy Goker , Ming-Chih Weng , James Mark Decot
IPC分类号： G11B21/24
摘要： A head rotator assembly (22) for positioning a head (20) of a tape drive (10) relative to a storage tape includes a head supporter (230) and a supporter mover assembly (232). The head supporter (230) is coupled to and supports the head (20). The supporter mover assembly (232) rotates a portion of the head supporter (230) about an axis (241) to move the head (20) in an azimuth direction relative to the storage tape as the storage tape moves over the head (20). The head rotator assembly (22) includes a controller (16) that controls movement of the supporter mover assembly (232) based on a positioning signal. The supporter mover assembly (232) can include a first actuator (234A) that moves a first lever (236A) to rotate the head supporter (230) to move the head (20) in the azimuth direction. The first actuator (234A) biases the first lever (236A) to rotate part of the head supporter (230) to move the head in the azimuth direction.
摘要翻译： 用于相对于存储带定位磁带驱动器（10）的头部（20）的头部旋转器组件（22）包括头部支撑件（230）和支撑件移动器组件（232）。 头部支撑件（230）联接并支撑头部（20）。 当存储带移动到头部（20）上时，支撑器移动器组件（232）使头部支撑件（230）的一部分围绕轴线（241）旋转，以使头部（20）相对于存储带在方位角方向上移动， 。 头部旋转器组件（22）包括控制器（16），该控制器基于定位信号来控制支撑器移动器组件（232）的移动。 支撑器移动器组件（232）可以包括第一致动器（234A），其移动第一杆（236A）以旋转头部支撑件（230）以使头部（20）沿方位角方向移动。 第一致动器（234A）偏压第一杆（236A）以旋转头部支撑件（230）的一部分，以使头部在方位角方向上移动。
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公开(公告)号：US20100309579A1
公开(公告)日：2010-12-09
申请号：US12480475
申请日：2009-06-08
申请人： Ashok B. Nayak , Ming-Chih Weng , Turguy Goker
发明人： Ashok B. Nayak , Ming-Chih Weng , Turguy Goker
IPC分类号： G11B21/02
CPC分类号： G11B5/584
摘要： An actuator assembly (22) for positioning a head (16) of a tape drive (10) relative to a storage tape that moves along a tape path (24) includes a first actuator (228), a second actuator (230) and a controller (26). The actuators (228, 230) move the head (16) in a direction that is substantially perpendicular to the tape path. The first actuator (228) is mounted to the second actuator (230) at a location that is based on a position of a resonance node (680) of the second actuator (230). The controller (26) controls linear positioning of the first actuator (228) and the second actuator (230) relative to the storage tape on a closed-loop basis. The actuators (228, 230) can each include voice coils (246, 260). The second actuator (230) can include two positioner guides (253A, 253B) that are configured in a substantially collinear configuration or in a triangular configuration with the head (16). The first actuator (228) can include an isolation boot (232) that decreases vibration of the first actuator (228) caused by vibration of the second actuator (230). The actuators (228, 230) can have resonance frequencies that are different from one another. The first fundamental resonance frequency can be tuned based on the second resonance frequency to decrease a correlation between the resonances of the actuators (228, 230).
摘要翻译： 用于相对于沿着带路径（24）移动的存储带定位磁带驱动器（10）的头部（16）的致动器组件（22）包括第一致动器（228），第二致动器（230）和 控制器（26）。 致动器（228,230）在基本上垂直于磁带路径的方向上移动磁头（16）。 第一致动器（228）在基于第二致动器（230）的谐振节点（680）的位置的位置处安装到第二致动器（230）。 控制器（26）基于闭环控制第一致动器（228）和第二致动器（230）相对于存储带的线性定位。 致动器（228,230）可以各自包括音圈（246,260）。 第二致动器（230）可以包括两个定位器引导件（253A，253B），其被配置为具有头部（16）的大致共线构型或三角形构造。 第一致动器（228）可以包括隔离罩（232），其减小由第二致动器（230）的振动引起的第一致动器（228）的振动。 致动器（228,230）可以具有彼此不同的共振频率。 可以基于第二共振频率来调整第一基本共振频率，以减小致动器（228,230）的共振之间的相关性。
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5.发明授权Voice coil driven positioner for coarse and fine positioning of magnetic head in multi-track tape drive 失效音圈驱动定位器，用于在多轨磁带驱动器中磁头的精确定位
公开(公告)号：US5901008A
公开(公告)日：1999-05-04
申请号：US828550
申请日：1997-03-31
IPC分类号： G11B5/54 , G05B19/23 , G05B19/35 , G11B5/55 , G11B5/58 , G11B5/584 , H02K11/00 , H02K41/035 , H02P25/02
CPC分类号： H02K41/0356 , G05B19/23 , G05B19/351 , G11B5/5504 , G11B5/5508 , G11B5/584 , H02P25/034 , G05B2219/41355 , H02K11/00
摘要： A voice coil driven positioner is provided for positioning the magnetic head of a tape drive relative to the tape of a removable tape cartridge. The head positioner includes a low-mass carriage that supports the head on one end and the voice coil on an opposed second end. A low friction guide mechanism guides the carriage along a precision movement path that carries the head across tracks of a supplied multi-track tape and simultaneously carries the voice coil through a flux field generated by a stator. A movable magnet is attached to the carriage and located within the hollow of the voice coil for reciprocating into a hollow passageway of the stator together with reciprocation of the voice coil into another hollow of the stator. A flux detector is attached to the stator and located compactly within the hollow passageway of the stator for detecting the position of the magnet. A programmable lookup table converts measurement signals output by the flux detector into pre-calibrated, head-position indicating signals. A platform is provided on the carriage for mounting an interferometer prism used during calibration.
摘要翻译： 提供了一种音圈驱动定位器，用于相对于可移除的带盒的带定位磁带驱动器的磁头。 头部定位器包括一个低质量的托架，该托架在一端支撑头部，并且在相对的第二端上支撑音圈。 低摩擦引导机构沿着精准运动路径引导托架，该轨道将磁头穿过所提供的多轨磁带的磁道，同时通过由定子产生的磁通场传送音圈。 可移动磁体附接到滑架并且位于音圈的中空部分内，用于往复运动到定子的中空通道以及音圈与定子的另一个中空的往复运动。 磁通检测器附接到定子并紧密地定位在定子的中空通道内，用于检测磁体的位置。 可编程查找表将由通量检测器输出的测量信号转换成预校准的头位指示信号。 在滑架上设有平台，用于安装校准过程中使用的干涉仪棱镜。
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公开(公告)号：US5198947A
公开(公告)日：1993-03-30
申请号：US546025
申请日：1990-06-29
摘要： Apparatus for orienting a magnetic tape head and a tape drive assembly has a frame with a support, and a shaft mounted for rotation around its axis on the support. The first end of the shaft is pivotally mounted on the support, while the second end, also mounted on the support, is movable relative thereof. A motor is provided for rotating the shaft. A head carriage assembly with a magnetic tape head is mounted on the shaft and positioned so that the head lies adjacent magnetic tape which is located in the tape drive assembly. The head carriage assembly moves up and down the shaft when the shaft rotates, and thereby causes upward and downward movement of the head. The apparatus includes an adjuster for adjusting the orientation of the shaft and head carriage assembly. Further, a laser source, reflectors and accurate measuring instruments are provided for accurately setting the tape head to facilitate accurate location of a track on a magnetic tape.
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公开(公告)号：US4044369A
公开(公告)日：1977-08-23
申请号：US540765
申请日：1975-01-14
申请人： Ashok B. Nayak
发明人： Ashok B. Nayak
CPC分类号： G03B17/265 , G03B17/52 , Y10S430/164
摘要： A photographic assemblage is formed by a plurality of backing strips interconnected by a continuous sealing strip. In each assemblage, the backing strips carry a selected photographic medium, such as a strip of film or a layer of photodeveloping material. The sealing strip is attached to each backing strip at spaced apart points to cover over the photographic medium thereon, and may be peeled therefrom to dispense one of the backing strips. Several embodiments of cassette type magazines for the assemblages are disclosed. Photographic apparatus for use with the assemblages and cassettes is disclosed which is selectively operable to dispense backing strips carrying film one at a time from one assemblage, expose each frame of the film and develop the film by dispensing a backing strip carrying photodeveloper and moving it into aligned contact with the film. The film may be removed from the photograhic apparatus once developed.
摘要翻译： 通过由连续密封条互连的多个背衬条形成照相组合件。 在每个组合中，背衬带携带选定的照相介质，例如薄膜条或光致发育材料层。 密封条在间隔开的位置处附接到每个背衬条，以覆盖其上的照相介质上，并且可以从其剥离以分配其中一个背衬条。 公开了用于组合的盒式杂志的几个实施例。 公开了用于组合和盒的照相设备，其可选择性地可操作地从一个组合件一次分配承载膜的背衬条，暴露膜的每个框架并通过分配携带光电开发器的背衬带并将其移动到 与电影对齐接触。 一旦开发出来，该胶片可以从照相装置中取出。
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公开(公告)号：US08059355B2
公开(公告)日：2011-11-15
申请号：US12480475
申请日：2009-06-08
申请人： Ashok B. Nayak , Ming-Chih Weng , Turguy Goker
发明人： Ashok B. Nayak , Ming-Chih Weng , Turguy Goker
IPC分类号： G11B21/02
CPC分类号： G11B5/584
摘要： An actuator assembly (22) for positioning a head (16) of a tape drive (10) relative to a storage tape that moves along a tape path (24) includes a first actuator (228), a second actuator (230) and a controller (26). The actuators (228, 230) move the head (16) in a direction that is substantially perpendicular to the tape path. The first actuator (228) is mounted to the second actuator (230) at a location that is based on a position of a resonance node (680) of the second actuator (230). The controller (26) controls linear positioning of the first actuator (228) and the second actuator (230) relative to the storage tape on a closed-loop basis. The actuators (228, 230) can each include voice coils (246, 260). The second actuator (230) can include two positioner guides (253A, 253B) that are configured in a substantially collinear configuration or in a triangular configuration with the head (16). The first actuator (228) can include an isolation boot (232) that decreases vibration of the first actuator (228) caused by vibration of the second actuator (230). The actuators (228, 230) can have resonance frequencies that are different from one another. The first fundamental resonance frequency can be tuned based on the second resonance frequency to decrease a correlation between the resonances of the actuators (228, 230).
摘要翻译： 用于相对于沿着带路径（24）移动的存储带定位磁带驱动器（10）的头部（16）的致动器组件（22）包括第一致动器（228），第二致动器（230）和 控制器（26）。 致动器（228,230）在基本上垂直于磁带路径的方向上移动磁头（16）。 第一致动器（228）在基于第二致动器（230）的谐振节点（680）的位置的位置处安装到第二致动器（230）。 控制器（26）基于闭环控制第一致动器（228）和第二致动器（230）相对于存储带的线性定位。 致动器（228,230）可以各自包括音圈（246,260）。 第二致动器（230）可以包括两个定位器引导件（253A，253B），其被配置为具有头部（16）的大致共线构型或三角形构造。 第一致动器（228）可以包括隔离罩（232），其减小由第二致动器（230）的振动引起的第一致动器（228）的振动。 致动器（228,230）可以具有彼此不同的共振频率。 可以基于第二共振频率来调整第一基本共振频率，以减小致动器（228,230）的共振之间的相关性。
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公开(公告)号：US07502196B2
公开(公告)日：2009-03-10
申请号：US12110620
申请日：2008-04-28
申请人： Ashok B. Nayak , James M. Decot
发明人： Ashok B. Nayak , James M. Decot
CPC分类号： G11B5/584 , G11B5/00821
摘要： A head actuator design for a low profile tape drive is configured with a damping system for a head suspension system having flexure springs to accommodate a half-high form factor. The damping system employs hall sensors, for example, mounted on the head carriage that moves with the head carriage to provide position signals that are differentiated to form velocity signals used by a servo loop control system to dampen suspension system resonance. A flexible circuit routing is provided that is manageable for half-high form factors by combining the fine positioner loop and course positioner loop into a single loop, and preventing the head flexible printed circuit from contacting a top cover in the routing to a printed circuit board near the top cover.
摘要翻译： 用于小型磁带驱动器的磁头致动器设计配置有用于具有弯曲弹簧以适应半高形状因数的磁头悬挂系统的阻尼系统。 阻尼系统使用例如安装在头部托架上的霍尔传感器，其与头托架一起移动，以提供差分的位置信号，以形成由伺服回路控制系统用于抑制悬架系统共振的速度信号。 提供了一种灵活的电路布线，可通过将精细定位器环路和定位器定位器环路组合到单个环路中来控制半高形状因素，并防止头部柔性印刷电路与布线到印刷电路板的顶盖接触 靠近顶盖。
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公开(公告)号：US20080198495A1
公开(公告)日：2008-08-21
申请号：US12110620
申请日：2008-04-28
申请人： Ashok B. Nayak , James M. Decot
发明人： Ashok B. Nayak , James M. Decot
IPC分类号： G11B5/02
CPC分类号： G11B5/584 , G11B5/00821
摘要： A head actuator design for a low profile tape drive is configured with a damping system for a head suspension system having flexure springs to accommodate a half-high form factor. The damping system employs hall sensors, for example, mounted on the head carriage that moves with the head carriage to provide position signals that are differentiated to form velocity signals used by a servo loop control system to dampen suspension system resonance. A flexible circuit routing is provided that is manageable for half-high form factors by combining the fine positioner loop and course positioner loop into a single loop, and preventing the head flexible printed circuit from contacting a top cover in the routing to a printed circuit board near the top cover.
摘要翻译： 用于小型磁带驱动器的磁头致动器设计配置有用于具有弯曲弹簧以适应半高形状因数的磁头悬挂系统的阻尼系统。 阻尼系统使用例如安装在头部托架上的霍尔传感器，其与头托架一起移动，以提供差分的位置信号，以形成由伺服回路控制系统用于抑制悬架系统共振的速度信号。 提供了一种灵活的电路布线，可通过将精细定位器环路和定位器定位器环路组合到单个环路中来控制半高形状因素，并防止头部柔性印刷电路与布线到印刷电路板的顶盖接触 靠近顶盖。
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