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公开(公告)号：US4395033A
公开(公告)日：1983-07-26
申请号：US243290
申请日：1981-03-13
CPC分类号： B65H3/02 , B65H3/0646
摘要： Device for separating and feeding sheets in seriatim from a stack to a processing station. The device includes a pin which periodically contacts and forms a pivot point on the stack. A rotary wave generator is disposed to rotate about the pivot point. The rotary wave generator periodically contacts a topmost sheet in the stack and shingles (that is separates) the sheet from the stack. The shingled sheet is fed into a paper sheet aligner and into the processing station. A variable or ramped force and/or a variable velocity is applied to the shingler. The force and/or velocity begins at a relatively low value and increases until a sheet is sensed downstream from the stack. This enables the feeding of a wide range of paper types and weights.
摘要翻译： 用于将纸张从纸堆分离和送入到加工站的装置。 该装置包括周期性地接触并在堆叠上形成枢轴点的销。 旋转波发生器设置成围绕枢转点转动。 旋转波发生器周期性地接触堆叠中的最上面的片材，并将片材与叠片分开（将其分开）。 将带状的片材送入纸张对齐器并进入加工台。 将可变或斜坡的力和/或可变速度施加到分路器。 力和/或速度以相对较低的值开始并且增加直到片材被从堆叠的下游感测为止。 这使得能够馈送各种纸张类型和重量。
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公开(公告)号：US4455018A
公开(公告)日：1984-06-19
申请号：US262727
申请日：1981-05-11
CPC分类号： B65H9/20 , B65H9/00 , G03B27/625 , Y10S271/902
摘要： A sheet registration apparatus for positioning sheets in a registered position on a work surface such as the document platen of a convenience copier/duplicator machine. The apparatus includes a bidirectional servo-controlled sheet transport for conveying the sheet over the work surface. A sheet sensing device is disposed within the path of sheet travel. A controller monitors the sensing device and activates a position control routine following the occurrence of a predetermined level change in the signal generated by the sensing device. At the end of the position control routine, the transport is stopped thereby positioning the sheet in the registration zone. The apparatus enables sheet registration for a machine operating in a duplex and/or simplex mode. The apparatus further enables registration at any point on the document platen.
摘要翻译： 一种纸张登记装置，用于将纸张定位在诸如便利复印机/复印机的文档台板的工作表面上的登记位置。 该装置包括用于在工作表面上输送片材的双向伺服控制片材输送器。 片材感测装置设置在片材行进路径内。 控制器监视感测装置，并且在由感测装置产生的信号发生预定电平变化之后激活位置控制程序。 在位置控制程序结束时，停止传送，从而将纸张定位在配准区域中。 该装置使得能够以双工和/或单工模式操作的机器的纸张登记。 该装置还能够在文档台板上的任何位置配准。
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公开(公告)号：US4457506A
公开(公告)日：1984-07-03
申请号：US302877
申请日：1981-09-16
申请人： William H. Ashbee , Mark A. Beran , Donald F. Colglazier , Donovan M. Janssen , John P. Mantey , Ronald J. Martin , Gerald P. Patch , Larry E. Rittenhouse , James A. Valent
发明人： William H. Ashbee , Mark A. Beran , Donald F. Colglazier , Donovan M. Janssen , John P. Mantey , Ronald J. Martin , Gerald P. Patch , Larry E. Rittenhouse , James A. Valent
IPC分类号： B65H1/30 , B65H7/20 , B65H83/00 , G03B27/62 , G03G15/00 , G03G15/04 , G03G21/00 , B65H5/22 , B65H31/12
CPC分类号： G03B27/6257
摘要： A servo-controlled recirculating automatic document feeder (RADF) includes a plurality of independently driven document transport devices. A picker mechanism separates documents in seriatim from a stack. An entry turnaround transport device buffers and delivers picked documents to a platen transport device for exposure. After exposure, the document is transported along a simplex or duplex path for duplex or simplex copying. The document is then buffered in an exit turnaround transport device and is subsequently returned to the stack. Each transport device is independently driven by a motor and a closed-loop servo. A common reference oscillator generates source signals for the servo-loops. A microcomputer operates on the source signals and generates reference signals for driving the transport devices.
摘要翻译： 伺服控制的循环自动送纸器（RADF）包括多个独立驱动的文件传送装置。 选择器机制将文件与堆栈分离。 进入周转运输装置缓冲并将拾取的文件传送到用于曝光的压板输送装置。 曝光后，文档沿单工或双工路径传输，用于双面或单面复印。 然后将文档缓冲在出口周转传输设备中，并随后返回到堆栈。 每个运输装置由电机和闭环伺服独立驱动。 公共参考振荡器产生伺服环路的源极信号。 微型计算机对源信号进行操作，并产生用于驱动传送装置的参考信号。
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公开(公告)号：US5476015A
公开(公告)日：1995-12-19
申请号：US243455
申请日：1994-05-16
申请人： James A. Valent
发明人： James A. Valent
CPC分类号： G11B5/5534
摘要： An improved method for compensating for the irregularity in the torque constant of the electric motor used to move the actuator arm carrying the magnetic read/write head in a disk drive is disclosed. The torque constant of the electric motor varies across the operating range on a given drive as a function of head location and the variation in torque constant is compensated for with a torque constant multiplier. The present invention provides a method for accurately determining the torque constant multiplier versus position function of a particular disk drive. In one embodiment, the method of the present invention includes the steps of: determining a nominal operating range for the location of a head over a disk for substantially all disk drives manufactured with the same manufacturing process; determining the offset of the operating range of a particular disk drive relative to the nominal operating range; modifying the location of the head, as determined by reading servo information, of the particular disk drive based on the offset; and obtaining the value of the torque constant multiplier associated with the modified head location.
摘要翻译： 公开了一种用于补偿用于将携带磁读/写头的致动器臂移动到磁盘驱动器中的电动机的转矩常数的改进方法。 电动机的转矩常数在给定的驱动器上的工作范围内作为头部位置的函数而变化，并且用转矩常数乘法器来补偿转矩常数的变化。 本发明提供了一种用于精确地确定特定磁盘驱动器的转矩常数乘数与位置函数的方法。 在一个实施例中，本发明的方法包括以下步骤：确定用于基本上以相同制造过程制造的所有磁盘驱动器的磁盘头部位置的标称工作范围; 确定特定磁盘驱动器相对于标称工作范围的操作范围的偏移; 通过读取伺服信息来确定基于偏移的特定磁盘驱动器的磁头位置; 并获得与修改的头位置相关联的转矩常数乘数的值。
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5.发明授权Positioning system for accurately positioning a read/write head over a track 失效定位系统，用于将读/写头准确地定位在轨道上
公开(公告)号：US6067205A
公开(公告)日：2000-05-23
申请号：US273632
申请日：1999-03-23
申请人： Harlan Mathews , James A. Valent
发明人： Harlan Mathews , James A. Valent
CPC分类号： G11B5/59627 , G11B5/4886 , G11B5/5526 , G11B5/5534 , G11B5/5965 , G11B5/3967 , G11B5/5547
摘要： A head positioning system accurately positions a read/write head along a selected track of a rotating magnetic disk. In one aspect, servo information is embedded along the track with the centerline of the servo information offset a radial distance from the centerline of data stored or written along the track. The head positioning system micro-jogs the read/write head a first and a second radial distance from the centerline of servo information for a read operation and a write operation.
摘要翻译： 头部定位系统沿着选定的旋转磁盘的轨道精确地定位读/写头。 在一个方面，沿轨道嵌入伺服信息，其中伺服信息的中心线抵消沿着轨道存储或写入的数据的中心线的径向距离。 磁头定位系统从读取操作和写入操作的伺服信息的中心线向读/写头微步进第一和第二径向距离。
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6.发明授权Method for generating a position error signal calibration curve in a hard disk drive 失效在硬盘驱动器中产生位置误差信号校准曲线的方法公开(公告)号：US06175472B1
公开(公告)日：2001-01-16
申请号：US09232331
申请日：1999-01-15
申请人： James A. Valent
发明人： James A. Valent
IPC分类号： G11B582
CPC分类号： G11B21/083 , G11B5/035 , G11B5/4886 , G11B5/5534 , G11B5/59611 , G11B5/59644 , G11B5/5965 , G11B5/59655 , G11B5/59683
摘要： A method and apparatus for generating a position error signal (PES) voltage v. track distance curve for the head of a hard disk drive. The disk has a dedicated track which contains a plurality of servo bits that allow the head to be centered with the centerline of the track. The dedicated track also has a number of calibration bits each embedded at a known location off-set from the track centerline. The PES voltage v. track distance curve is generated by reading each calibration bit and storing the corresponding amplitude of the position error signal in a memory device of the disk drive. Each calibration bit is located from the track centerline a distance that is different from the other calibration bits so that there are provided multiple points on the track curve.
摘要翻译： 一种用于产生硬盘驱动器头部的位置误差信号（PES）电压v。轨迹距离曲线的方法和装置。 磁盘具有专用磁道，其包含允许磁头与轨道的中心线对中的多个伺服位。 专用轨道还具有多个校准位，每个校准位嵌入在与轨道中心线偏离的已知位置。 通过读取每个校准位并将位置误差信号的相应幅度存储在磁盘驱动器的存储器件中来产生PES电压v。轨迹距离曲线。 每个校准位从轨道中心线的距离与其他校准位不同，以便在曲线曲线上提供多个点。
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公开(公告)号：US5978168A
公开(公告)日：1999-11-02
申请号：US798606
申请日：1997-02-11
申请人： Harlan Mathews , James A. Valent
发明人： Harlan Mathews , James A. Valent
CPC分类号： G11B5/59627 , G11B5/4886 , G11B5/5526 , G11B5/5534 , G11B5/5965 , G11B5/3967 , G11B5/5547
摘要： A head positioning system accurately positions a read/write head along a selected track of a rotating magnetic disk. In one aspect, servo information is embedded along the track with the centerline of the servo information offset a radial distance from the centerline of data stored or written along the track. The head positioning system micro-jogs the read/write head a first and a second radial distance from the centerline of servo information for a read operation and a write operation.
摘要翻译： 头部定位系统沿着选定的旋转磁盘的轨道精确地定位读/写头。 在一个方面，沿轨道嵌入伺服信息，其中伺服信息的中心线抵消沿着轨道存储或写入的数据的中心线的径向距离。 磁头定位系统从读取操作和写入操作的伺服信息的中心线向读/写头微步进第一和第二径向距离。
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公开(公告)号：US5616869A
公开(公告)日：1997-04-01
申请号：US573943
申请日：1995-12-18
申请人： James A. Valent
发明人： James A. Valent
CPC分类号： G11B5/5534
摘要： The present invention involves compensating for the irregularity in the torque constant of an electric motor used to move an actuator arm carrying a magnetic read/write head in a disk drive. The torque constant of an electric motor varies across the operating range on a given drive as a function of head location. The present invention provides an apparatus and method for determining the torque constant versus position function of a given disk drive during the servo write process.
摘要翻译： 本发明涉及补偿用于将携带磁读/写头的致动器臂移动到磁盘驱动器中的电动机的转矩常数的不规则性。 电动机的转矩常数作为磁头位置的函数在给定的驱动器上的工作范围内变化。 本发明提供一种用于在伺服写入过程期间确定给定磁盘驱动器的转矩常数与位置函数的装置和方法。
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公开(公告)号：US4675761A
公开(公告)日：1987-06-23
申请号：US835617
申请日：1986-03-03
CPC分类号： G11B5/5526
摘要： An apparatus and method are disclosed for positioning magnetic heads relative to the recording tracks of a recording medium such as a floppy disk having circular, concentric recording tracks formed thereon. The magnetic heads are mounted on a head carriage, and the head carriage is moved, in response to received command pulses, so that the heads are moved linearly, by step increments, along a radius of the floppy disk. The heads are thereby moved across the spaced tracks on the disk, with each incremental movement of the heads being a distance less than the distance between the tracks, and being, for example, one-half or one-fourth of the total distance between tracks. Acoustic noise due to head movement is minimized by moving the heads by increments less than the distance between the tracks, with such movement avoiding exciting the resonances of the head moving apparatus. The magnetic heads are initially moved at a rate known to avoid exciting the resonance and, during such initial movement, the rate of received command pulses is determined. If the received command pulse rate is within a predetermined range, and is a rate that will not excite resonance, continued movement of the head is at the rate of the received command pulses.
摘要翻译： 公开了一种用于将磁头相对于记录介质的记录轨道定位的装置和方法，诸如形成有圆形同心记录磁道的软盘。 磁头安装在头部托架上，并且头托架响应于接收到的命令脉冲而移动，使得头部沿着软盘的半径以逐步的增量线性移动。 磁头由此移动到磁盘上的间隔的磁道上，磁头的每次增量运动的距离都小于轨道之间的距离，并且例如是轨道之间的总距离的一半或四分之一 。 通过以小于轨道之间的距离的方式移动头部，使头部运动引起的声音噪声最小化，避免激发头部移动装置的共振。 磁头首先以已知的速度移动以避免激发谐振，并且在这样的初始移动期间确定接收到的命令脉冲的速率。 如果接收到的指令脉冲速率在预定范围内，并且是不会激发共振的速率，则头的继续移动处于接收到的命令脉冲的速率。
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公开(公告)号：US5867353A
公开(公告)日：1999-02-02
申请号：US706441
申请日：1996-08-30
申请人： James A. Valent
发明人： James A. Valent
CPC分类号： G11B21/083 , G11B5/5534 , G11B5/59611 , G11B5/59644 , G11B5/5965 , G11B5/59655 , G11B5/59683 , G11B5/035 , G11B5/4886
摘要： A method and apparatus for creating a position error signal (PES) voltage v. track distance curve for the head of a hard disk drive. The disk has a dedicated track which contains a plurality of servo bits that allow the head to be centered with the centerline of the track. The dedicated track also has a number of calibration bits each embedded at a known location off-set from the track centerline. The PES voltage v. track distance curve is generated by reading each calibration bit and storing the corresponding amplitude of the position error signal in a memory device of the disk drive. Each calibration bit is located from the track centerline a distance that is different from the other calibration bits so that there are provided multiple points on the track curve.
摘要翻译： 一种用于产生硬盘驱动器的头部的位置误差信号（PES）电压v。轨迹距离曲线的方法和装置。 磁盘具有专用磁道，其包含允许磁头与轨道的中心线对中的多个伺服位。 专用轨道还具有多个校准位，每个校准位嵌入在与轨道中心线偏离的已知位置。 通过读取每个校准位并将位置误差信号的相应幅度存储在磁盘驱动器的存储器件中来产生PES电压v。轨迹距离曲线。 每个校准位从轨道中心线的距离与其他校准位不同，以便在曲线曲线上提供多个点。
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