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1.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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2.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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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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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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公开(公告)号：US5978520A
公开(公告)日：1999-11-02
申请号：US687937
申请日：1996-07-29
CPC分类号： G06K9/00476
摘要： An object of the present invention is to generate a vector or data from inputted drawing data interactively by suppressing the input cost.When an unknown process occurs in the system during data processing, an inquiry to a user is generated in the case of interactive operation. However, when drawings are handled, the number of inquiries to a user increases and the system operability lowers inversely. The present invention executes the drawing recognition method by cooperation and and competition of a multi-agent on the basis of the basic property of a figure such as adjacent relation. When blurring or a problem portion such as in interruption part or a junction part appears during recognition of a drawing, the linkage relation of line paths is automatically decided by making the recognition agent adjacent to the problem portion cooperate and compete. An inquiry to a user is not made. By doing this, vector data is obtained.The input cost of figure information in a data base can be reduced remarkably.
摘要翻译： 本发明的目的是通过抑制输入成本来交互地生成来自输入的绘制数据的矢量或数据。 当在数据处理期间在系统中发生未知进程时，在交互操作的情况下生成对用户的查询。 然而，当处理图形时，对用户的查询次数增加，系统可操作性降低。 本发明通过基于诸如相邻关系的图形的基本属性的协作和竞争来执行绘图识别方法。 当在识别图形期间出现模糊或诸如中断部分或连接部分的问题部分时，通过使与问题部分相邻的识别代理进行协作和竞争来自动确定线路的连接关系。 不向用户发出询问。 通过这样做，获得矢量数据。 数据库中图形信息的输入成本可以显着降低。
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