公开(公告)号：US6009061A

公开(公告)日：1999-12-28

申请号：US885129

申请日：1997-06-30

申请人： Marvin B. Davis ,  Kent Murphy

发明人： Marvin B. Davis ,  Kent Murphy

IPC分类号： G11B7/085 ,  G11B11/105 ,  G11B17/028 ,  G11B17/04

CPC分类号： G11B17/0438 ,  G11B11/10543 ,  G11B11/10558 ,  G11B17/0288 ,  G11B17/0405 ,  G11B17/0434 ,  G11B17/0436 ,  G11B7/08582

摘要： The mechanism for loading and unloading a disk cartridge uses two sliders (one on each side of a base plate), which move in opposite directions under the influence of a tiller. Each slider has a slot to receive one of the two lifting pins provided on the cartridge receiver. The movement of the sliders drives the lifting pins along the slots, thereby raising or lowering the cartridge receiver depending upon the direction of rotation of the tiller. The sliding motion of the lifting pins engaged in the S-shaped slots thus unloads a disk from or, alternatively, loads the disk onto the drive spindle. As the lifting pins travel along their respective slots, the lifting and lowering of the disk is accomplished in such a manner that the disk hub is peeled from the spindle magnet rather than being lifted vertically off the spindle. This reduces the peak force required to break the magnetic clamp force between the spindle magnet and the disk hub. In this system, the dust door is attached to the cartridge receiver, and the label end of the loaded cartridge remains visible when the disk is loaded. This system may include a bias coil assembly rotatably mounted on an arm so that the bias coil assembly may be loaded into or extracted from the disk cartridge and placed out of the travel path of the disk cartridge. The rotation of the bias coil arm is effected by one of the sliders.

摘要翻译： 用于装载和卸载盘盒的机构使用两个滑块（在底板的每一侧上一个），其在分蘖的影响下在相反方向上移动。 每个滑块具有一个槽，用于容纳设置在盒式磁盘接收器上的两个提升销中的一个。 滑块的运动沿着狭槽驱动提升销，从而根据耕作机的旋转方向升高或降低料盒接收器。 接合在S形槽中的提升销的滑动运动由此将盘卸载或替代地将盘装载到驱动主轴上。 当提升销沿其相应的槽行进时，盘的升降是以这样的方式实现的：盘毂从主轴磁体剥离，而不是垂直地离开主轴。 这样可以减少断开主轴磁铁和磁盘轮毂之间的磁夹紧力所需的最大力。 在该系统中，防尘门安装在墨盒接收器上，并且装入墨盒的标签末端在加载磁盘时保持可见。 该系统可以包括可旋转地安装在臂上的偏置线圈组件，使得偏置线圈组件可以被装载到盘盒中或从盘盒中取出并且被放置在盘盒的行进路径之外。 偏置线圈臂的旋转由滑块之一实现。

公开(公告)号：US5684776A

公开(公告)日：1997-11-04

申请号：US473869

申请日：1995-06-07

申请人： Marvin B. Davis ,  Kent Murphy

发明人： Marvin B. Davis ,  Kent Murphy

IPC分类号： G11B19/02 ,  G11B7/085 ,  G11B11/105 ,  G11B17/028 ,  G11B17/04 ,  G11B17/043

CPC分类号： G11B17/0434 ,  G11B11/10543 ,  G11B11/10558 ,  G11B17/028 ,  G11B17/0288 ,  G11B17/0405 ,  G11B17/0436 ,  G11B17/0438 ,  G11B7/08582

摘要： The mechanism for loading and unloading a disk cartridge uses two sliders (one on each side of a base plate), which move in opposite directions under the influence of a tiller. Each slider has a slot to receive one of the two lifting pins provided on the cartridge receiver. The movement of the sliders drives the lifting pins along the slots, thereby raising or lowering the cartridge receiver depending upon the direction of rotation of the tiller. The sliding motion of the lifting pins engaged in the S-shaped slots thus unloads a disk from or, alternatively, loads the disk onto the drive spindle. As the lifting pins travel along their respective slots, the lifting and lowering of the disk is accomplished in such a manner that the disk hub is peeled from the spindle magnet rather than being lifted vertically off the spindle. This reduces the peak force required to break the magnetic clamp force between the spindle magnet and the disk hub. In this system, the dust door is attached to the cartridge receiver, and the label end of the loaded cartridge remains visible when the disk is loaded. This system may include a bias coil assembly rotatably mounted on an arm so that the bias coil assembly may be loaded into or extracted from the disk cartridge and placed out of the travel path of the disk cartridge. The rotation of the bias coil arm is effected by one of the sliders.

摘要翻译： 用于装载和卸载盘盒的机构使用两个滑块（在底板的每一侧上一个），其在分蘖的影响下在相反方向上移动。 每个滑块具有一个槽，用于容纳设置在盒式磁盘接收器上的两个提升销中的一个。 滑块的运动沿着狭槽驱动提升销，从而根据耕作机的旋转方向升高或降低料盒接收器。 接合在S形槽中的提升销的滑动运动由此将盘卸载或替代地将盘装载到驱动主轴上。 当提升销沿其相应的槽行进时，盘的升降是以这样的方式实现的：盘毂从主轴磁体剥离，而不是垂直地离开主轴。 这样可以减少断开主轴磁铁和磁盘轮毂之间的磁夹紧力所需的最大力。 在该系统中，防尘门安装在墨盒接收器上，并且装入墨盒的标签末端在加载磁盘时保持可见。 该系统可以包括可旋转地安装在臂上的偏置线圈组件，使得偏置线圈组件可以被装载到盘盒中或从盘盒中取出并且被放置在盘盒的行进路径之外。 偏置线圈臂的旋转由滑块之一实现。

公开(公告)号：US4791511A

公开(公告)日：1988-12-13

申请号：US899364

申请日：1986-08-22

申请人： Marvin B. Davis

发明人： Marvin B. Davis

IPC分类号： G11B17/04 ,  G11B19/20 ,  G11B23/03 ,  G11B25/04 ,  G11B5/012 ,  G11B23/02

CPC分类号： G11B17/043 ,  G11B19/2009 ,  G11B23/0308 ,  G11B25/043

摘要： A disk cartridge for a disk drive has a slide door normally biased to the closed position. A recess on the door is positioned laterally offset from the horizontal center as to be oriented in either the upper or lower portion of the door depending on the orientation of the cartridge housing. The recess is engagable by a door opening mechanism on the disk drive to move the door to its open position wherein the disk media is exposed to the sensors in the disk drive. The recess is engagable by the door opening mechanism regardless of the orientation of the cartridge. A lock button supported on a resilient support engages the door recess when the door is in its closed position to thereby lock the door; the door opening mechanism engaging the lock button to unlock the door when engaging the recess.

摘要翻译： 用于磁盘驱动器的盘盒具有通常偏置到关闭位置的滑动门。 门上的凹部被定位成横向偏离水平中心，以便根据盒壳体的取向被定位在门的上部或下部中。 该凹槽可由磁盘驱动器上的门打开机构接合，以将门移动到其打开位置，其中磁盘介质暴露于磁盘驱动器中的传感器。 无论盒的方向如何，该凹口可通过门打开机构接合。 当门处于其关闭位置时，支撑在弹性支撑件上的锁定按钮与门凹部接合，从而锁定门; 门开启机构接合锁定按钮以在接合凹部时解锁门。

公开(公告)号：US06418097B1

公开(公告)日：2002-07-09

申请号：US08476527

申请日：1995-06-07

申请人： David L. Schell ,  Randolph Scott Crupper ,  Kurt W. Getreuer ,  Leonardus I. Grassens ,  David E. Lewis ,  Marvin B. Davis

发明人： David L. Schell ,  Randolph Scott Crupper ,  Kurt W. Getreuer ,  Leonardus I. Grassens ,  David E. Lewis ,  Marvin B. Davis

IPC分类号： G11B700

CPC分类号： G11B17/043 ,  G11B5/5526 ,  G11B7/0037 ,  G11B7/004 ,  G11B7/00456 ,  G11B7/00745 ,  G11B7/08511 ,  G11B7/08529 ,  G11B7/08582 ,  G11B7/09 ,  G11B7/0901 ,  G11B7/0908 ,  G11B7/0917 ,  G11B7/093 ,  G11B7/0932 ,  G11B7/0933 ,  G11B7/0935 ,  G11B7/0941 ,  G11B7/0943 ,  G11B7/0945 ,  G11B7/126 ,  G11B7/1356 ,  G11B11/10504 ,  G11B11/10534 ,  G11B11/1055 ,  G11B11/10563 ,  G11B11/10576 ,  G11B11/10595 ,  G11B17/0438 ,  G11B20/10009 ,  G11B20/10037 ,  G11B20/10222 ,  G11B20/1258 ,  G11B20/14 ,  G11B21/10 ,  G11B21/106 ,  G11B2007/0919 ,  G11B2020/10916 ,  G11B2020/1281 ,  G11B2020/1484 ,  H02K41/0354 ,  H02K41/0356

摘要： An analog to digital circuit assembly includes a circuit for multiplexing a reference voltage input of an analog to digital converter to produce alternating normalized and referenced digital outputs of an analog signal input at a rate controlled by a sampling clock which includes a switch including first and second inputs, an output, and a control input for alternately connecting the first and the second inputs to the output, the output being applied to the reference voltage input. An information detection device having a detection output and a servo mechanism that controls operations on detected information is provided in conjunction with a signal summing circuit, a direct current voltage reference, a control clock connected, a servo error signal circuit having a servo error signal output and input, a sampling clock, and a processing circuit having an input connected to a digital output of the analog to digital converter and an output for controlling the servo mechanism. The analog to digital circuit assembly is also implemented in an optical disc system for improved operation thereof.

摘要翻译： 模数电路组件包括用于多路复用模数转换器的参考电压输入的电路，以产生由采样时钟控制的速率的模拟信号输入的交替归一化和参考的数字输出，该采样时钟包括开关，该开关包括第一和第二 输入，输出和用于交替地将第一和第二输入连接到输出的控制输入，输出被施加到参考电压输入。 具有检测输出的信息检测装置和控制对检测信息的操作的伺服机构结合信号求和电路，直流电压基准，连接的控制时钟，具有伺服误差信号输出的伺服误差信号电路 并输入采样时钟和具有连接到模数转换器的数字输出的输入端的处理电路和用于控制伺服机构的输出。 模拟数字电路组件也在光盘系统中实现，以改进其操作。

公开(公告)号：US5729511A

公开(公告)日：1998-03-17

申请号：US376882

申请日：1995-01-25

申请人： David L. Schell ,  Randolph S. Crupper ,  Marvin B. Davis ,  Kurt W. Getreuer ,  Leonardus J. Grassens ,  David E. Lewis

发明人： David L. Schell ,  Randolph S. Crupper ,  Marvin B. Davis ,  Kurt W. Getreuer ,  Leonardus J. Grassens ,  David E. Lewis

IPC分类号： G11B7/0045 ,  G02B7/04 ,  G11B5/55 ,  G11B7/00 ,  G11B7/0037 ,  G11B7/004 ,  G11B7/005 ,  G11B7/007 ,  G11B7/085 ,  G11B7/09 ,  G11B7/125 ,  G11B7/135 ,  G11B11/105 ,  G11B15/467 ,  G11B17/04 ,  G11B19/28 ,  G11B20/10 ,  G11B20/12 ,  G11B21/02 ,  G11B21/10 ,  G11B25/04 ,  G11B33/08 ,  H02K41/035 ,  H03B5/08 ,  H03B5/12

CPC分类号： G11B17/043 ,  G11B11/10504 ,  G11B11/10534 ,  G11B11/1055 ,  G11B11/10563 ,  G11B11/10576 ,  G11B11/10595 ,  G11B17/0438 ,  G11B20/10009 ,  G11B21/10 ,  G11B21/106 ,  G11B5/5526 ,  G11B7/0037 ,  G11B7/004 ,  G11B7/08511 ,  G11B7/08529 ,  G11B7/08582 ,  G11B7/09 ,  G11B7/0908 ,  G11B7/0917 ,  G11B7/093 ,  G11B7/0932 ,  G11B7/0933 ,  G11B7/0935 ,  G11B7/0941 ,  G11B7/0943 ,  G11B7/0945 ,  G11B7/126 ,  G11B7/1356 ,  H02K41/0354 ,  G11B20/10037 ,  G11B20/10222 ,  G11B20/1258 ,  G11B20/14 ,  G11B2007/0919 ,  G11B2020/10916 ,  G11B2020/1281 ,  G11B2020/1484 ,  G11B7/00456 ,  G11B7/00745 ,  G11B7/0901 ,  H02K41/0356

摘要： An optical drive system includes an optical assembly, a light source capable of transmitting light through the optical assembly, an objective lens positioned to direct light between the optical assembly and a respective information storage medium, and an actuator suspending the objective lens for relative motion thereof with respect to the actuator. A photodetector is disposed in a path of returning light to measure return light received from the respective medium. A monitoring circuit is provided to monitor a Quad Sum signal associated with the return light. A first servomotor is employed to move the objective lens in a tracking direction relative to the actuator and to move the objective lens during focus capture relative to the respective medium being read while system circuitry searches for a maximum Quad Sum signal. A second servo motor is employed to move the objective lens in a focusing direction relative to the actuator assembly. A first electronic circuit is provided to control the first and second servomotors. A servo error circuit is coupled to the first electronic circuit and the photodetector to determine when the return light exceeds a predetermined value, to search for a first zero crossing determining when the Quad Sum signal exceeds a predetermined amplitude, and to indicate to the first electronic circuit to direct close of focus by the second servomotor when the Quad Sum signal exceeds the predetermined amplitude.

摘要翻译： 光学驱动系统包括光学组件，能够通过光学组件透射光的光源，定位成在光学组件和各个信息存储介质之间引导光的物镜，以及悬挂物镜以进行相对运动的致动器 相对于致动器。 光检测器设置在返回光的路径中，以测量从相应介质接收的返回光。 提供监视电路以监视与返回光相关联的Quad Sum信号。 使用第一伺服电机相对于致动器在跟踪方向上移动物镜，并且在聚焦捕获期间相对于正在读取的相应介质移动物镜，同时系统电路搜索最大Quad Sum信号。 使用第二伺服电机相对于致动器组件沿聚焦方向移动物镜。 提供第一电子电路以控制第一和第二伺服电动机。 伺服误差电路耦合到第一电子电路和光电检测器以确定何时返回光超过预定值，以搜索第一过零点，以确定何时Quad Sum信号超过预定幅度，并向第一电子 电路，当Quad Sum信号超过预定幅度时，由第二伺服电机直接接近焦点。

公开(公告)号：US5724331A

公开(公告)日：1998-03-03

申请号：US296794

申请日：1994-08-25

申请人： Marvin B. Davis ,  Kent Murphy

发明人： Marvin B. Davis ,  Kent Murphy

IPC分类号： G11B19/02 ,  G11B7/085 ,  G11B11/105 ,  G11B17/028 ,  G11B17/04 ,  G11B17/043

CPC分类号： G11B17/0434 ,  G11B11/10543 ,  G11B11/10558 ,  G11B17/028 ,  G11B17/0288 ,  G11B17/0405 ,  G11B17/0436 ,  G11B17/0438 ,  G11B7/08582

摘要： The mechanism for loading and unloading a disk cartridge uses two sliders (one on each side of a base plate), which move in opposite directions under the influence of a tiller. Each slider has a slot to receive one of the two lifting pins provided on the cartridge receiver. The movement of the sliders drives the lifting pins along the slots, thereby raising or lowering the cartridge receiver depending upon the direction of rotation of the tiller. The sliding motion of the lifting pins engaged in the S-shaped slots thus unloads a disk from or, alternatively, loads the disk onto the drive spindle. As the lifting pins travel along their respective slots, the lifting and lowering of the disk is accomplished in such a manner that the disk hub is peeled from the spindle magnet rather than being lifted vertically off the spindle. This reduces the peak force required to break the magnetic clamp force between the spindle magnet and the disk hub. In this system, the dust door is attached to the cartridge receiver, and the label end of the loaded cartridge remains visible when the disk is loaded. This system may include a bias coil assembly rotatably mounted on an arm so that the bias coil assembly may be loaded into or extracted from the disk cartridge and placed out of the travel path of the disk cartridge. The rotation of the bias coil arm is effected by one of the sliders.

摘要翻译： 用于装载和卸载盘盒的机构使用两个滑块（在底板的每一侧上一个），其在分蘖的影响下在相反方向上移动。 每个滑块具有一个槽，用于容纳设置在盒式磁盘接收器上的两个提升销中的一个。 滑块的运动沿着狭槽驱动提升销，从而根据耕作机的旋转方向升高或降低料盒接收器。 接合在S形槽中的提升销的滑动运动由此将盘卸载或替代地将盘装载到驱动主轴上。 当提升销沿其相应的槽行进时，盘的升降是以这样的方式实现的：盘毂从主轴磁体剥离，而不是垂直地离开主轴。 这样可以减少断开主轴磁铁和磁盘轮毂之间的磁夹紧力所需的最大力。 在该系统中，防尘门安装在墨盒接收器上，并且装入墨盒的标签末端在加载磁盘时保持可见。 该系统可以包括可旋转地安装在臂上的偏置线圈组件，使得偏置线圈组件可以被装载到盘盒中或从盘盒中取出并且被放置在盘盒的行进路径之外。 偏置线圈臂的旋转由滑块之一实现。

公开(公告)号：US4823214A

公开(公告)日：1989-04-18

申请号：US122795

申请日：1987-11-19

申请人： Marvin B. Davis

发明人： Marvin B. Davis

IPC分类号： G11B17/04 ,  G11B19/20 ,  G11B23/03 ,  G11B25/04 ,  G11B17/02 ,  G11B15/18

CPC分类号： G11B17/043 ,  G11B19/2009 ,  G11B23/0308 ,  G11B25/043

摘要： A disk drive includes a drive mechanism for engaging the disk of a disk cartridge. A support is provided to move the drive mechanism into engagement with the disk. Several alternative supports are disclosed, employing cam mechanisms to pivotally move the drive mechanism. Also, pins are provided to restrain the cartridge housing from movement while the support is operated. An actuator is provided to open the cartridge as it is inserted into the drive.

摘要翻译： 磁盘驱动器包括用于接合盘盒的盘的驱动机构。 提供支撑件以将驱动机构移动到与盘接合。 公开了几种替代的支撑件，其使用凸轮机构来枢转地移动驱动机构。 此外，提供销以在支撑件被操作时限制盒壳体移动。 提供致动器以便当其插入驱动器时打开该盒。

公开(公告)号：US4745500A

公开(公告)日：1988-05-17

申请号：US777814

申请日：1985-09-19

申请人： Marvin B. Davis

发明人： Marvin B. Davis

IPC分类号： G11B17/04 ,  G11B17/043 ,  G11B19/20 ,  G11B23/03 ,  G11B25/04 ,  G11B5/012 ,  G11B23/04

CPC分类号： G11B17/043 ,  G11B19/2009 ,  G11B23/0308 ,  G11B25/043

摘要： A disk drive includes a drive mechanism for engaging the disk of a disk cartridge. A support is provided to move the drive mechanism into engagement with the disk. Several alternative supports are disclosed, employing cam mechanisms to pivotally move the drive mechanism. Also pins are provided to restrain the cartridge housing from movement while the support is operated. An actuator is provided to open the cartridge as it is inserted into the drive.

摘要翻译： 磁盘驱动器包括用于接合盘盒的盘的驱动机构。 提供支撑件以将驱动机构移动到与盘接合。 公开了几种替代的支撑件，其使用凸轮机构来枢转地移动驱动机构。 还提供了针脚以在支撑件被操作时限制盒壳体移动。 提供致动器以便当其插入驱动器时打开该盒。

公开(公告)号：US4740949A

公开(公告)日：1988-04-26

申请号：US39600

申请日：1987-04-16

申请人： Marvin B. Davis

发明人： Marvin B. Davis

IPC分类号： G11B17/04 ,  G11B23/03 ,  G11B23/02 ,  G11B5/12

CPC分类号： G11B17/0436 ,  G11B23/0308

摘要： An apparatus is disclosed for providing laser access to an optical disk enclosed in a cartridge when the cartridge is loaded into an optical drive. Two opposed panels, mounted slidably to the cartridge casing, are spring biased to close an access window in the casing. Each panel includes a detent accessible from outside of the cartridge. In the optical drive is a platform that receives and guides the cartridge as it is inserted into the drive. Two spring-loaded links are mounted relative to the platform. As the disk is inserted into the drive, the detents engage their corresponding links. Responsive to further cartridge insertion, each of the links pivots to move its associated panel to an open position against the spring biasing force.

摘要翻译： 公开了一种用于当盒装载到光盘驱动器中时提供对封闭在盒中的光盘的激光访问的装置。 两个相对的面板可滑动地安装到盒壳体上，被弹簧偏置以封闭壳体中的进入窗口。 每个面板包括从盒的外部可接近的棘爪。 在光盘驱动器中是一个平台，它在插入驱动器时接收和引导盒。 两个弹簧连接件相对于平台安装。 当盘被插入到驱动器中时，棘爪接合其相应的链接。 响应于进一步的盒式磁带插入，每个链节枢转以抵抗弹簧偏压力将其相关联的面板移动到打开位置。

公开(公告)号：US4644521A

公开(公告)日：1987-02-17

申请号：US765426

申请日：1985-08-14

申请人： Marvin B. Davis ,  Michael V. Konshak ,  Christopher A. Pollard

发明人： Marvin B. Davis ,  Michael V. Konshak ,  Christopher A. Pollard

IPC分类号： G11B17/04 ,  G11B23/03 ,  G11B23/02 ,  B65D85/02

CPC分类号： G11B17/041 ,  G11B23/032 ,  G11B23/0328

摘要： An optical disk cartridge has two opposed cartridge sections held together by four locking assemblies. Each locking assembly includes a first locking jamb attached to one section, a second locking jamb attached to the other section, a locking detent and a spring. The jambs can be locking fingers parallel to and adjacent to one another when the cartridge sections are joined, in which case the detent surrounds the fingers as a sleeve, preventing the fingers from moving apart. The spring biases the detent into locking engagement with the fingers, keeping the cartridge closed. Alternatively, the jambs can be aligned slots in the cartridge top and bottom sections, with each detent having a protrusion that enters its associated slots. The spring and most of the detent are contained inside the cartridge. However, each detent includes a leg extended outside the cartridge through an aperture in the cartridge side wall. Also disclosed is a drive apparatus for use with the cartridge. Upper and lower rails mounted inside the housing contact flanges of the cartridge to guide the cartridge during its insertion into the drive. Stops in the housing contact the detents during insertion and move them out of locking engagement with their respective locking jambs. Following insertion, a movable platform in the housing is lowered, separating the cartridge sections from one another and moving the disk into drivable engagement with a drive spindle in the housing. Subsequently the platform can be raised to disengage the disk from the spindle and reunite the cartridge sections.

摘要翻译： 光盘盒具有通过四个锁定组件保持在一起的两个相对的盒部分。 每个锁定组件包括附接到一个部分的第一锁定支杆，附接到另一部分的第二锁定支杆，锁定棘爪和弹簧。 当盒部分接合时，侧壁可以将手指彼此平行并相邻，在这种情况下，制动器将手指围绕作为套筒，防止手指移开。 弹簧将制动器偏压成与手指的锁定接合，保持盒子的关闭。 或者，侧柱可以在盒顶部和底部部分中对准狭槽，每个棘爪具有进入其相关联的狭槽的突起。 弹簧和大部分制动器都包含在墨盒内。 然而，每个棘爪包括通过盒侧壁中的孔延伸到盒的外部的腿。 还公开了一种与盒一起使用的驱动装置。 上部和下部导轨安装在盒的壳体接触凸缘内，以在其插入驱动器期间引导盒。 壳体中的止动件在插入过程中与止动件接触，并将它们移出与它们各自的锁定侧面的锁定接合。 在插入之后，壳体中的可移动平台下降，将盒部彼此分离并将盘移动到与壳体中的驱动主轴可驱动接合。 随后可以升高平台以将盘与主轴脱离并使盒部分重新团聚。