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公开(公告)号：US5083302A
公开(公告)日：1992-01-21
申请号：US247163
申请日：1988-09-21
申请人： Hiroshi Tsuyuguchi , Makoto Syoji , Tsutomu Morita
发明人： Hiroshi Tsuyuguchi , Makoto Syoji , Tsutomu Morita
IPC分类号： G11B7/09
CPC分类号： G11B7/0935 , G11B7/0937
摘要： A tracking servo apparatus for performing a control so that a light beam is irradiated onto a predetermined track of an information recording surface of a disc shaped recording medium comprising an optical system for focusing the light beam on the information recording surface of the disc shaped recording medium, a holder for holding the optical system, tracking error detection circuit for detecting a tracking error of the light beam irradiated on the information recording surface with respect to the predetermined track by receiving a reflected light of the irradiated light beam that has been reflected from the information recording surface, and outputs an error signal in accordance with the tracking error, and a piezoelectric device which is connected to the holding means, and is deformed when supplied with an amplified voltage of the error signal so as to deflect the holder and thus moves the optical system so that the light beam is irradiated on to the predetermined track of the information recording surface.
摘要翻译： 一种用于执行控制的跟踪伺服装置，使得光束照射到盘形记录介质的信息记录表面的预定轨迹上，该盘状记录介质包括用于将光束聚焦在盘形记录介质的信息记录表面上的光学系统 ，用于保持光学系统的保持器，跟踪误差检测电路，用于通过接收从所述光学系统反射的照射光束的反射光来检测照射在信息记录表面上的相对于预定轨迹的光束的跟踪误差 信息记录表面，并且根据跟踪误差输出误差信号;以及压电装置，其连接到保持装置，并在被提供有误差信号的放大电压时变形，从而使保持器偏转并因此移动 光学系统，使得光束照射到inf的预定轨道上 记录表面。
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公开(公告)号：US4677510A
公开(公告)日：1987-06-30
申请号：US699085
申请日：1985-02-07
IPC分类号： G11B17/03 , G11B17/04 , G11B17/22 , G11B19/06 , G11B19/10 , G11B19/20 , G11B23/00 , G11B17/00 , G11B5/012
CPC分类号： G11B17/043 , G11B19/06 , G11B19/10 , G11B19/2009 , G11B23/0035
摘要： An apparatus for data transfer with a magnetic disk having a metal made hub attached centrally thereto, with the hub having a first opening defined centrally therein and a second opening defined eccentrically therein. The apparatus includes a turntable mounted on a drive spindle which is engageable in the first opening in the hub of the magnetic disk loaded on the turntable. A retractable drive pin is mounted eccentrically on the turntable so as to be sprung into engagement in the second opening in the disk hub upon register therewith. In order to assure engagement of the drive pin in the second opening in the disk hub immediately upon loading of the magnetic disk on the turntable, a disk drive motor for driving the turntable via the drive spindle is connected to a supply terminal via a power control switch. When the magnetic disk is loaded on the turntable while power is being supplied from the supply terminal, a switch control circuit closes the power control switch, for causing the rotation of the turntable relative to the magnetic disk, for a preassigned length of time sufficient for the drive pin to become engaged in the second opening in the disk hub. The magnetic disk can therefore be set into rotation for immediate commencement of data transfer upon delivery of a "motor on" signal from host equipment to the power control switch.
摘要翻译： 一种用磁盘进行数据传送的装置，该磁盘具有一个金属制轮毂，其中心地安装有金属制轮毂，该轮毂具有中心地限定在其中的第一开口和偏心地限定在其中的第二开口。 该装置包括安装在驱动主轴上的转台，该转盘可接合在装在转盘上的磁盘的轮毂中的第一开口中。 可旋转的驱动销偏心地安装在转盘上，以便与其对准时在盘毂中的第二开口中弹簧接合。 为了在将磁盘装载在转盘上时立即确保驱动销在盘毂中的第二开口中的接合，用于经由驱动主轴驱动转盘的盘驱动马达经由功率控制 开关。 当从供电端子供电时将磁盘装载在转盘上时，开关控制电路关闭电源控制开关，用于使转盘相对于磁盘转动，预先指定的时间长度足以 所述驱动销接合在所述盘毂中的所述第二开口中。 因此，可以将磁盘设置为旋转，以便在从主机设备向功率控制开关传送“电机接通”信号时立即开始数据传输。
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3.发明授权Data transfer apparatus with a disklike record medium and a method of operation therefore 失效具有盘状记录介质的数据传送装置及其操作方法
公开(公告)号：US4782406A
公开(公告)日：1988-11-01
申请号：US133162
申请日：1987-12-11
CPC分类号： G11B19/20 , G11B19/00 , G11B21/106 , G11B5/5547
摘要： A data transfer apparatus for use with a replaceable disklike record medium such as a flexible magnetic disk having data storage tracks thereon, comprising a disk drive motor for imparting rotation to the record medium, and a head transport motor for transporting a transducer head or heads radially of the record medium so as to enable the transducer head or heads to access the individual data storage tracks on the record medium for data transfer therewith. Also included is a control and drive circuit for controllably energizing the head transport motor. When the disk drive motor is out of rotation, the control and drive circuit holds the supply voltage of the head transport motor zero, or lower than its normal operating voltage for head transportation, for saving power. Then, as the disk drive motor is set into rotation, the control and drive circuit applies the normal operating voltage to the head transport motor preparatory to the commencement of data transfer, thereby automatically recorrecting the head position on the record medium.
摘要翻译： 一种数据传送装置，用于与其上具有数据存储轨道的可替换的盘状记录介质一起使用，包括用于向记录介质传送旋转的盘驱动马达，以及用于传送换能器头部或头部的头部传送马达 以使得换能器头部或头部能够访问记录介质上的各个数据存储轨道，以便与其进行数据传输。 还包括用于可控地激励磁头传送电机的控制和驱动电路。 当磁盘驱动电机不能旋转时，控制和驱动电路将磁头传输电机的电源电压保持为零，或低于其运行的正常工作电压以节省电力。 然后，当磁盘驱动电动机转动时，控制和驱动电路将正常工作电压施加到磁头传输电机，以准备开始数据传输，从而自动重新校正记录介质上的磁头位置。
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4.发明授权Circuit arrangement and method for saving power in magnetic disk apparatus without head displacement 失效无磁头位移的磁盘装置节省电力的电路装置及方法
公开(公告)号：US4783706A
公开(公告)日：1988-11-08
申请号：US32983
申请日：1987-03-27
IPC分类号： G11B21/02 , G11B5/54 , G11B19/00 , G11B19/10 , G11B19/20 , G11B21/08 , G11B21/10 , G11B5/55 , G11B19/02
CPC分类号： G11B19/20 , G11B19/00 , G11B19/10 , G11B21/106 , G11B5/54
摘要： A data transfer apparatus for use with a replaceable disklike record medium such as a flexible magnetic disk having data storage tracks thereon, comprising a disk drive motor for imparting rotation to the record medium, and a head transport motor for transporting a transducer head or heads radially of the record medium so as to enable the transducer head or heads to access the individual data storage tracks on the record medium for data transfer therewith. Also included is a control and drive circuit for controllably energizing the head transport motor. When the record medium is not loaded in the apparatus, the control and drive circuit holds the supply voltage of the head transport motor zero, or lwoer than its normal operating voltage for head transportation, for saving power. Then, as the record medium is loaded into the apparatus, the control and drive circuit applies the normal operating voltage to the head transport motor preparatory to the commencement of data transfer, thereby automatically recorrecting the head position on the record medium.
摘要翻译： 一种数据传送装置，用于与其上具有数据存储轨道的可替换的盘状记录介质一起使用，包括用于向记录介质传送旋转的盘驱动马达，以及用于传送换能器头部或头部的头部传送马达 以使得换能器头部或头部能够访问记录介质上的各个数据存储轨道，以便与其进行数据传输。 还包括用于可控地激励磁头传送电机的控制和驱动电路。 当记录介质没有装入设备时，控制和驱动电路将磁头传送电机的电源电压保持为零，或者比头部运输的正常工作电压低，以节省电力。 然后，由于记录介质被装载到装置中，所以控制和驱动电路将正常工作电压施加到磁头传送电机，以准备开始数据传送，从而自动重新校正记录介质上的磁头位置。
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5.发明授权
公开(公告)号：US4626942A
公开(公告)日：1986-12-02
申请号：US705674
申请日：1985-02-26
CPC分类号： G11B19/00 , G11B19/04 , G11B5/5526
摘要： A data transfer apparatus is disclosed as exemplified by a floppy disk drive which has photoelectric sensors such as a TRACK ZERO sensor for sensing whether a transducer head or heads are in the "track zero" position on the floppy disk, and a FILE PROTECT sensor for sensing whether the disk is protected against erasure of any prerecorded data. In order to avoid waste of power, at least the TRACK ZERO sensor, preferably the FILE PROTECT sensor as well, has its light source such as an LED connected to a power supply via a power saving switch herein shown as a switching transistor. Connected to the base of the power saving transistor is a switch control circuit which causes conduction through the transistor, and hence the energization of the sensor light source, only when the operation of the sensor is required, as for a preassigned length of time immediately after the apparatus is electrically turned on.
摘要翻译： 公开了一种数据传送装置，例如具有诸如TRACK ZERO传感器的光电传感器的软盘驱动器，用于检测传感器头部或头部是否处于软盘上的“轨迹零”位置，以及FILE PROTECT传感器， 检测磁盘是否被保护以防止任何预先记录的数据被擦除。 为了避免浪费电力，至少TRACK ZERO传感器（优选FILE PROTECT传感器）也具有其光源，例如通过本文所示为开关晶体管的省电开关连接到电源的LED。 连接到省电晶体管的基极是开关控制电路，其仅在需要传感器的操作时才导致通过晶体管的导通，并且因此传感器光源的通电，就像紧随其后的预先指定的时间长度 该装置电气接通。
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6.发明授权Power saving circuit arrangement for an apparatus for data transfer with flexible magnetic disk or the like 失效用于具有柔性磁盘等的数据传输装置的节电电路装置
公开(公告)号：US4700243A
公开(公告)日：1987-10-13
申请号：US634320
申请日：1984-07-25
申请人： Hiroshi Tsuyuguchi , Tsutomu Morita , Makoto Shoji
发明人： Hiroshi Tsuyuguchi , Tsutomu Morita , Makoto Shoji
摘要： A floppy disk drive which, together with one or more like devices, is daisy chained to host equipment comprising a central processor unit and an associated controller. Each disk drive comprises a disk motor for rotating a record disk under the control of a disk motor drive circuit, a head motor for incrementally moving a transducer head radially of the record disk under the control of a head motor drive circuit, and a read/write circuit for processing data read from, or to be written on, the record disk via the transducer head. The host equipment produces, among other control signals, a MOTOR ON signal for the on/off control of the disk motor via the disk motor drive circuit. In order to avoid waste of electric power, not only the disk motor drive circuit but also at least one, preferably both, of the head motor drive circuit and the read/write circuit is connected to a common power line via a power control switch which is closed only when the MOTOR ON signal is in a prescribed state to cause rotation of the disk motor.
摘要翻译： 一个软盘驱动器与一个或多个相似的设备一起被菊花链链接到包括中央处理器单元和相关控制器的主机设备。 每个磁盘驱动器包括用于在盘式电动机驱动电路的控制下旋转记录盘的磁盘电动机，用于在磁头电动机驱动电路的控制下使记录盘的径向逐渐移动的磁头电动机，以及读/ 写入电路，用于处理通过换能器头从记录盘读取或写入的数据。 除了其他控制信号之外，主机还经由盘式电动机驱动电路产生用于盘式电动机的开/关控制的MOTOR ON信号。 为了避免电力浪费，不仅磁头马达驱动电路，而且磁头马达驱动电路和读/写电路中的至少一个，优选两个都经由功率控制开关连接到公共电源线，功率控制开关 只有当MOTOR ON信号处于规定状态才能使盘驱动器旋转。
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7.发明授权
公开(公告)号：US4688112A
公开(公告)日：1987-08-18
申请号：US705561
申请日：1985-02-26
摘要： A flexible magnetic disk drive is disclosed which has a disk drive motor for imparting rotation to the magnetic disk under the control of a "motor on" signal, and a stepping motor capable of stepwise rotation in response to stepping pulses for transporting a transducer head or heads radially of the magnetic disk for track to track accessing. Connected to the transducer heads for processing data transferred between them and the magnetic disk, a read/write circuit is connected to a supply terminal via a switching transistor. This switching transistor has connected to its base a switch control circuit for holding the switching transistor nonconductive when the disk drive motor is out of rotation and when the stepping motor is in rotation, and for holding the transistor conductive at least during the progress of data transfer between the transducer heads and the magnetic disk. Preferably, the switch control circuit is further adapted to hold the power control switch open from the moment the disk drive motor is set into rotation to the moment the speed of rotation of the disk drive motor builds up to a prescribed percentage of a normal speed at which data transfer is effected between the transducer heads and the record medium.
摘要翻译： 公开了一种柔性磁盘驱动器，其具有用于在“电动机接通”信号的控制下向磁盘施加旋转的盘驱动电动机，以及能够响应于用于传送换能器头的步进脉冲而逐步旋转的步进电机， 在磁盘的径向磁头上磁道跟踪进入。 连接到换能器头用于处理在它们与磁盘之间传送的数据，读/写电路经由开关晶体管连接到电源端子。 该开关晶体管连接到其基极，当盘驱动电动机不转动时以及当步进电动机转动时，开关控制电路用于保持开关晶体管不导通，并且至少在数据传输过程中保持晶体管导通 在换能器头和磁盘之间。 优选地，开关控制电路还适于将电源控制开关从磁盘驱动电动机设置旋转的时刻开始到盘驱动电动机的旋转速度达到正常速度的规定百分比的时刻 在传感器头和记录介质之间进行数据传送。
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公开(公告)号：US5107479A
公开(公告)日：1992-04-21
申请号：US346416
申请日：1989-05-01
申请人： Hiroshi Tsuyuguchi , Tsutomu Morita
发明人： Hiroshi Tsuyuguchi , Tsutomu Morita
CPC分类号： G11B7/126 , G11B19/02 , G11B19/28 , G11B27/005 , G11B7/004 , G11B7/0941
摘要： An optical recording/reproducing apparatus records an information signal on a rotary optical disk by irradiating an optical beam having an optical power such that an energy sufficient to cause recording of the information signal is incident to a unit area of the optical disk in a unit time while revolting to optical disk at a first predetermined speed, and plays back the information signal from the optical disk by irradiating the optical beam while revolving the optical disk with a second predetermined speed such that the energy incident to a unit area of the optical beam in a unit time at the time of playback does not cause recording on the optical disk.
摘要翻译： 光学记录/再现装置通过照射具有光功率的光束将信息信号记录在旋转光盘上，使得足以使信息信号记录的能量以单位时间入射到光盘的单位面积 同时以第一预定速度旋转到光盘，并且以第二预定速度旋转光盘时照射光束从光盘重放信息信号，使得入射到光束的单位面积的能量 播放时的单位时间不会导致光盘上的记录。
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公开(公告)号：US5010246A
公开(公告)日：1991-04-23
申请号：US464975
申请日：1990-01-16
摘要： An optical head apparatus applicable to an optical disc apparatus comprises, a case body having an open surface and a window through which an opto-electronic component can be positioned and housing optical components inside it, a lid being attachable and detachable with respect to the open surface of the case body, and a flexible printed circuit board having a base portion which is adhered to the lid and on which electronic components are mounted and a protruding portion protruding from the base portion and having an opto-electronic component fixed to the distal end portion of it, the opto-electronic component being electrically connected with an electronic circuit which is formed by the electronic components, the distal end portion of the protruding portion of the flexible printed circuit board being fixed to the case body so that the opto-electronic component is position to the window.
摘要翻译： 适用于光盘装置的光头装置包括：具有开放表面的窗体和可以定位光电元件的窗口，并且在其内容纳光学元件;盖可相对于打开的 壳体的表面和柔性印刷电路板，其具有粘附到盖并且安装有电子部件的基部和从基部突出的突出部分，并且具有固定到远端的光电部件 所述光电元件与由所述电子部件形成的电子电路电连接，所述柔性印刷电路板的突出部的前端部固定于所述壳体，使得所述光电子 组件是窗口的位置。
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10.发明授权Optical recording and reproducing apparatus for verifying correct writing of information signal 失效用于验证信息信号的正确写入的光学记录和再现装置
公开(公告)号：US4935914A
公开(公告)日：1990-06-19
申请号：US209838
申请日：1988-06-22
CPC分类号： G11B20/1879 , G11B19/04 , G11B7/004 , G11B7/125
摘要： An optical recording and reproducing apparatus includes a controlling circuit for controlling a light intensity of a laser beam emitted by a laser diode. The controlling circuit sets the light intensity in a verifying mode at a level lower than those in data read and write modes. The verifying mode is a mode for verifying whether or not the recording or reproducing apparatus can operate correctly. The apparatus also comprises a verifying circuit for comparing the reproduced information signal obtained in the verifying mode with a reference information signal which corresponds to the information signal written into the optical disc.
摘要翻译： 光记录和重放装置包括一个控制电路，用于控制由激光二极管发射的激光束的光强度。 控制电路将验证模式中的光强设置为低于数据读和写模式的光强度。 验证模式是用于验证记录或再现设备是否能够正常工作的模式。 该装置还包括验证电路，用于将在验证模式中获得的再现信息信号与对应于写入光盘的信息信号的参考信息信号进行比较。
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