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1. 发明授权

US4771346A Method and apparatus for rewriting on a magnetic disk on which data has been written by another apparatus having half the track density capability of the first apparatus 失效
标题翻译：用于在具有第一装置的一半磁道密度能力的另一装置写入了数据的磁盘上进行重写的方法和装置
公开(公告)号：US4771346A
公开(公告)日：1988-09-13
申请号：US60063
申请日：1987-06-09
申请人： Makoto Shoji , Hiroshi Tsuyuguchi , Yoshiaki Sakai
发明人： Makoto Shoji , Hiroshi Tsuyuguchi , Yoshiaki Sakai
IPC分类号： G11B21/08 , G11B5/012 , G11B5/09 , G11B5/86 , G11B21/12 , G11B5/03
CPC分类号： G11B5/012 , G11B5/86
摘要： A floppy disk drive (FDD) capable of data transfer with a track density of, typically, 96 tracks per inch (TPI) is adapted for rewriting on a floppy disk on which data has been written on concentric data tracks by a 48-TPI FDD. The data tracks, each with a width W1, are arranged with a pitch P1 on the disk. The 96-TPI FDD has a magnetic head assembly comprising a read/write head capable of providing a data track width W2 of 0.4 W1 to 0.6 W1, and a pair of tunnel erase heads each capable of providing an erase width of (W1-W2)/1 to (P1/2-W2). The opposite edge portions of each prewritten data track on the disk are erased by the erase heads of the head assembly, with the latter successively positioned intermediate the data tracks. Either before or, preferably, after the erasure of the edge portions of the prewritten data tracks, the head assembly is positioned on the successive data tracks for rewriting thereon by the read/write head, with the erase heads maintained in operation for the complete erasure of the old data during the writing of new data.
摘要翻译：能够进行数据传输的软盘驱动器（FDD）具有通常为每英寸96个磁道（TPI）的磁道密度，适用于通过48-TPI FDD将数据写入同心数据磁道的软盘上进行重写。每个具有宽度W1的数据轨道在盘上以间距P1排列。 96-TPI FDD具有磁头组件，其包括能够提供0.4W1至0.6W1的数据磁道宽度W2的读/写头，以及一对隧道擦除磁头，每个能够提供（W1-W2 ）/ 1〜（P1 / 2-W2）。磁盘上每个预先写入的数据轨道的相对边缘部分被磁头组件的擦除头擦除，后者相继位于数据磁道之间。在预写的数据轨道的边缘部分被擦除之前或之前，优选地，头部组件位于连续的数据轨道上，以便由读/写头重写，擦除头保持在操作中以进行完全擦除在编写新数据时的旧数据。

2. 发明授权

US5309628A Assembling position adjusting mechanism of a spindle motor for a magnetic disk apparatus 失效
标题翻译：用于磁盘装置的主轴电机的组装位置调整机构
公开(公告)号：US5309628A
公开(公告)日：1994-05-10
申请号：US992134
申请日：1992-12-17
申请人： Kiyoshi Fukuchi , Yoshiaki Sakai , Hiroshi Tsuyuguchi , Takashi Numata , Fumio Nagase
发明人： Kiyoshi Fukuchi , Yoshiaki Sakai , Hiroshi Tsuyuguchi , Takashi Numata , Fumio Nagase
IPC分类号： G11B25/04 , G11B5/55 , G11B33/12 , B23P19/04
CPC分类号： G11B5/5521 , Y10S29/028 , Y10T29/49025 , Y10T29/53165 , Y10T29/53261 , Y10T29/53265
摘要： An assembling position-adjusting mechanism of a magnetic disk apparatus able to adjust the azimuth, radial alignment, and index of a magnetic head by adjusting a position thereof during the assembling process of a spindle motor. A positioning head movable in a direction perpendicular to a top surface of a table is provided. A plurality of positioning pins are provided on the bottom of the positioning head. Moving mechanisms are provided in the positioning head so that the bottom surface of the positioning head is movable and rotatable parallel to the top surface of the table. Each positioning pin of the positioning head is inserted into a respective positioning hole of a motor assembly so as to move the motor assembly with a movement of the positioning head so that the spindle motor of the motor assembly is at an appropriate position relative to the magnetic head of the main body of the magnetic disk apparatus.
摘要翻译：一种磁盘装置的组装位置调节机构，其能够通过在主轴电动机的组装过程中调节其位置来调节磁头的方位角，径向取向和折射率。提供了可在与桌子的顶面垂直的方向上移动的定位头。多个定位销设置在定位头的底部。移动机构设置在定位头中，使得定位头的底面能够平行于工作台的顶面移动和旋转。定位头的每个定位销插入到马达组件的相应定位孔中，以便随着定位头的运动而使马达组件移动，使得马达组件的主轴马达相对于磁铁位于适当的位置磁盘装置的主体的头部。

3. 发明授权

US5442608A Disk apparatus having a power consumption reducing mechanism 失效
标题翻译：具有功耗降低机构的磁盘装置
公开(公告)号：US5442608A
公开(公告)日：1995-08-15
申请号：US206900
申请日：1994-03-04
申请人： Yoshiaki Umeda , Teruo Furukawa , Masaharu Ogawa , Kazuhiko Nakane , Akira Mashimo , Tetsuro Araki , Hiroyuki Onda , Yoshiaki Sakai , Hiroshi Tsuyuguchi , Katsuya Enami
发明人： Yoshiaki Umeda , Teruo Furukawa , Masaharu Ogawa , Kazuhiko Nakane , Akira Mashimo , Tetsuro Araki , Hiroyuki Onda , Yoshiaki Sakai , Hiroshi Tsuyuguchi , Katsuya Enami
IPC分类号： G11B19/00 , G11B7/0037 , G11B11/105 , G11B19/16 , G11B7/00
CPC分类号： G11B19/00 , G11B11/10595 , G11B7/0037
摘要： A disk apparatus comprising a controller receiving commands from a command input device and controlling an entire operation of the disk apparatus. The rotating control function is coupled to the controller for controlling the first motor. The pickupmotor control function is coupled to the controller for controlling the second motor. The pickup control function is coupled to the controller for controlling a focusing operation and a tracking operation of the pickup. And the signal processing function is coupled to the controller for processing a recording signal to be recorded on the disk-shaped recording medium and a reproduced signal read out therefrom. The controller is comprised function-stop function for determining whether or not any command is received from the command input device during a predetermined period of time in a state. The disk apparatus is maintained in a predetermined mode and for stopping predetermined function among the rotating control function, the pickup motor control function, the pickup control function, and the signal processing function when it is determined that no command is received from the command input device during the predetermined period.
摘要翻译：一种盘装置，包括控制器，从命令输入装置接收命令并控制盘装置的整个操作。旋转控制功能耦合到控制器以控制第一电动机。拾取电机控制功能耦合到控制器以控制第二电动机。拾取控制功能耦合到控制器，用于控制拾取器的聚焦操作和跟踪操作。并且信号处理功能被耦合到控制器，用于处理要记录在盘形记录介质上的记录信号和从其读出的再现信号。控制器包括功能停止功能，用于在一个状态下的预定时间段内确定是否从命令输入设备接收到任何命令。当确定没有从命令输入装置接收到命令时，盘装置被保持在预定模式并用于在旋转控制功能，拾取马达控制功能，拾取控制功能和信号处理功能之间停止预定功能在预定期间。

4. 发明授权

US5357384A Rotating disk data storage apparatus capable of preventing head travel when the disk is not loaded 失效
标题翻译：旋转盘数据存储装置，当盘未被加载时能够防止磁头行进
公开(公告)号：US5357384A
公开(公告)日：1994-10-18
申请号：US179654
申请日：1994-01-10
申请人： Hiroshi Tsuyuguchi , Shinichiro Tanaka , Tohru Miura , Miya Enami , Hikaru Tamada , Yoshiaki Sakai
发明人： Hiroshi Tsuyuguchi , Shinichiro Tanaka , Tohru Miura , Miya Enami , Hikaru Tamada , Yoshiaki Sakai
IPC分类号： G11B21/08 , G11B5/55 , G11B19/00 , G11B19/10 , G11B21/12 , G11B21/02
CPC分类号： G11B5/5534 , G11B19/00 , G11B19/10 , G11B21/12
摘要： A flexible magnetic disk drive is disclosed which has a data transducer mounted to a pivotal support beam for movement into and out of data transfer contact with the disk. When the transducer is retracted away from the disk, the support beam butts on the top plate of the disk drive casing for the reduction of the thickness of the disk drive, that is, its dimension in a direction perpendicular to the plane of the disk. A stepper motor is provided for moving the transducer across data tracks on the disk in response to external stepping pulses from a host system and to internal stepping pulses for recalibration. The application of such stepping pulses to a stepper motor control circuit is prevented when the disk is not loaded in the disk drive, in order to avoid the movement of the support beam in sliding contact with the top plate.
摘要翻译：公开了一种柔性磁盘驱动器，其具有安装到枢转支撑梁的数据换能器，用于移动进入和离开与盘的数据传送接触。当传感器从盘离开时，支撑梁对接在盘驱动器壳体的顶板上，以减小盘驱动器的厚度，即其在垂直于盘平面的方向上的尺寸。提供步进电机，用于响应于来自主机系统的外部步进脉冲和用于重新校准的内部步进脉冲，使换能器沿盘上的数据轨移动。为了避免支撑梁与顶板滑动接触的移动，当盘没有装载在盘驱动器中时，可以防止这种步进脉冲施加到步进电机控制电路。

5. 发明授权

US5032934A Magnetic disc apparatus with a cosine equalizer and specific gap length head 失效
标题翻译：具有余弦均衡器和特定间隙长度头的磁盘设备
公开(公告)号：US5032934A
公开(公告)日：1991-07-16
申请号：US395736
申请日：1989-08-18
申请人： Shinichi Aikawa , Yoshiaki Sakai , Hiroshi Tsuyuguchi , Fumio Nagase
发明人： Shinichi Aikawa , Yoshiaki Sakai , Hiroshi Tsuyuguchi , Fumio Nagase
IPC分类号： G11B5/012 , G11B5/09 , G11B20/10
CPC分类号： G11B20/10212 , G11B20/10009 , G11B5/012 , G11B5/09
摘要： A magnetic disc apparatus comprises a single write/read magnetic head for carrying out write/read with respect to either one of a low-density magnetic disc and a high-density magnetic disc, and a cosine equalizer supplied with a read signal from the write/read magnetic head. The write/read magnetic head has a core gap length which is between 0.60 and 1.20 times a minimum field conversion length for high-density write by a write/read signal.
摘要翻译：磁盘装置包括用于执行相对于低密度磁盘和高密度磁盘中的任一个的写入/读取的单个写入/读取磁头和被提供有来自写入的读取信号的余弦均衡器 /读磁头。写入/读取磁头具有通过写入/读取信号进行高密度写入的最小场转换长度的0.60到1.20倍的磁芯间隙长度。

6. 发明授权

US4691255A Power saving circuit arrangement for data transfer apparatus with a disklike record medium 失效
标题翻译：具有盘状记录介质的数据传输装置的节电电路装置
公开(公告)号：US4691255A
公开(公告)日：1987-09-01
申请号：US699084
申请日：1985-02-07
申请人： Yoshiaki Sakai , Hiroshi Tsuyuguchi
发明人： Yoshiaki Sakai , Hiroshi Tsuyuguchi
IPC分类号： G11B19/00 , G11B19/20 , G11B21/08 , G11B19/02
CPC分类号： G11B19/20
摘要： A magnetic disk drive is disclosed which has a disk drive motor for imparting rotation to a magnetic disk, and a head transport motor for transporting a transducer head or heads radially of the magnetic disk for track to track accessing. The disk drive motor and the head transport motor are fed from a common direct current supply terminal via first and second switching transistors, respectively, which independently control power delivery to the two motors for effectively saving power. A voltage regulating capacitor is connected only between ground and the output line of the first switching transistor for the disk drive motor. In order to prevent the flow of a surge current due to the voltage regulating capacitor upon conduction of the first switching transistor, a conduction retarder is provided which causes a gradual conduction through the first switching transistor in response to an actuating signal from host equipment controlling the disk drive. The conduction retarder takes the form of a capacitor connected between the collector and base of the first switching transistor in one embodiment of the invention, and of a time constant circuit connected between the host equipment and the base of the first switching transistor in another embodiment.
摘要翻译：公开了一种磁盘驱动器，其具有用于向磁盘提供旋转的磁盘驱动电机，以及用于传送磁头的磁头或磁头径向磁道的磁头传送电机，用于磁道跟踪访问。磁盘驱动电动机和磁头传送电动机分别经由第一和第二开关晶体管从公共直流电源端子馈送，其独立地控制向两个电动机的电力输送以有效地节省电力。电压调节电容器仅连接在第一个用于盘驱动电动机的开关晶体管的地与输出线之间。为了防止在第一开关晶体管导通时由于电压调节电容器引起的浪涌电流的流动，提供了导电延迟器，其导致通过第一开关晶体管的逐渐导通，响应于来自主机设备的致动信号控制磁盘驱动器。在本发明的一个实施例中，导电延迟器采用连接在第一开关晶体管的集电极和基极之间的电容器的形式，以及在另一实施例中连接在主机设备和第一开关晶体管的基极之间的时间常数电路。

7. 发明授权

US4675763A Magnetic disk drive with a disk leveling mechanism 失效
标题翻译：具有磁盘调平机构的磁盘驱动器
公开(公告)号：US4675763A
公开(公告)日：1987-06-23
申请号：US694872
申请日：1985-01-25
申请人： Yoshiaki Sakai , Hiroshi Tsuyuguchi , Yasushi Noda , Takahiro Sakaguchi
发明人： Yoshiaki Sakai , Hiroshi Tsuyuguchi , Yasushi Noda , Takahiro Sakaguchi
IPC分类号： G11B17/32 , G11B19/20 , G11B5/012
CPC分类号： G11B17/32 , G11B19/2009
摘要： An apparatus for data transfer with a magnetic disk having a diameter of, say, 86 millimeters, having a pair of transducer heads for data transfer engagement with the opposite surfaces of the disk mounted on a turntable driven directly by a disk drive motor. In order to hold the magnetic disk exactly level on the turntable for proper data transfer contact with the transducer heads, a leveling mechanism is provided whereby at least the turntable is made adjustably movable in its axial direction with respect to the frame of the apparatus, as by the manual turn of an adjusting screw or screws. In one embodiment, the turntable is movable with a drive spindle on which it is mounted coaxially and which forms an output shaft of the disk drive motor. In another embodiment, the turntable travels with the complete disk drive motor.
摘要翻译：具有直径为86毫米的磁盘进行数据传输的装置具有一对换能器头，用于与安装在由盘驱动马达直接驱动的转台上的盘的相对表面进行数据传送接合。为了将磁盘牢固地保持在转盘上，与传感器头正确地进行数据传送接触，提供了一个调平机构，由此至少使转台相对于设备的框架在其轴向上可调节地移动，如通过手动转动调节螺丝或螺丝。在一个实施例中，转盘可与驱动主轴一起移动，驱动主轴同轴地安装在该驱动主轴上并形成盘驱动马达的输出轴。在另一个实施例中，转盘与完整的盘驱动马达一起行进。

8. 发明授权

US5434724A Method and apparatus for the high speed driving of a stepper motor against seek error upon power restoration in a microcomputer system 失效
标题翻译：一种用于微机系统中的电力恢复时的步进电机的高速驱动与寻道误差的方法和装置
公开(公告)号：US5434724A
公开(公告)日：1995-07-18
申请号：US201774
申请日：1994-02-25
申请人： Makoto Shoji , Tohru Miura , Hiroshi Tsuyuguchi
发明人： Makoto Shoji , Tohru Miura , Hiroshi Tsuyuguchi
IPC分类号： G11B21/08 , G11B19/00 , G11B19/02
CPC分类号： G11B19/00
摘要： A microcomputer system having a flexible magnetic disk drive and a controller therefor, with the disk drive including a stepper motor for incrementally moving a transducer from track to track on a rotating magnetic disk, and a clock which is inherently unstable in operation during a predefinable startup period thereof after being powered on. In order to enable the disk drive to internally generate stepping pulses for driving the stepper motor at twice as high a rate as by external stepping pulses from the controller without being affected by unstable clock pulses during the startup period of the clock, the controller supplies external stepping pulses to the disk drive after imparting a predetermined delay, longer than the startup period of the clock, to each series of external stepping pulses with respect to the moment a power save signal, also supplied from the controller to the disk drive, indicates that the clock and other power consuming parts of the disk drive be powered. Within the disk drive a counter counts the clock pulses for a length of time equal to half the period of each series of external stepping pulses in response to each incoming external stepping pulse, thereby providing output pulses that rise with the respective external stepping pulses. A pulse generator circuit generates internal stepping pulses in synchronism with both leading and trailing edges of the counter output pulses. Additional embodiments are disclosed.
摘要翻译：一种具有柔性磁盘驱动器及其控制器的微计算机系统，其中磁盘驱动器包括步进马达，该步进马达用于在旋转磁盘上逐渐地将传感器从轨道移动到轨道，以及在预定义启动期间操作中固有地不稳定的时钟上电后的周期。为了使磁盘驱动器内部产生用于驱动步进电机的步进脉冲，其速度是来自控制器的外部步进脉冲的两倍，而不受时钟启动期间不稳定的时钟脉冲的影响，控制器提供外部相对于从控制器向磁盘驱动器提供的功率保存信号的时刻，向每个系列的外部步进脉冲施加比时钟的启动时间长的预定延迟，向盘驱动器提供步进脉冲，磁盘驱动器的时钟和其他耗电部分被供电。在磁盘驱动器内，计数器响应于每个进入的外部步进脉冲，对时钟脉冲计数等于每一系列外部步进脉冲的周期的一半的时间长度，从而提供随着各个外部步进脉冲而上升的输出脉冲。脉冲发生器电路与计数器输出脉冲的前沿和后沿同步产生内部步进脉冲。公开了另外的实施例。

9. 发明授权

US4754344A Method and apparatus for formatting magnetic disks with use of host equipment programmed for smaller capacity magnetic disks 失效
标题翻译：使用为较小容量磁盘编程的主机设备格式化磁盘的方法和装置
公开(公告)号：US4754344A
公开(公告)日：1988-06-28
申请号：US945290
申请日：1986-12-22
申请人： Makoto Shoji , Hiroshi Tsuyuguchi
发明人： Makoto Shoji , Hiroshi Tsuyuguchi
IPC分类号： G11B20/10 , G06F3/06 , G11B5/09
CPC分类号： G06F3/0607 , G06F3/0638 , G06F3/0676
摘要： A double capacity adapter circuit is connected between host equipment and one or more magnetic disk drives in order to adapt the host equipment, which has been programmed for use with relatively small capacity magnetic disks, for use with double capacity magnetic disks in the disk drives coupled thereto. As originally programmed, the host equipment formats one side of a small capacity magnetic disk with first format data in response to an index pulse from the associated disk drive, and the other side of the small capacity magnetic disk with second format data in response to another index pulse. In order to format the double capacity magnetic disks with the same program, the adapter circuit delays the index pulses by a time corresponding to half a revolution of the magnetic disk, thereby producing pseudo index pulses. The adapter circuit further enables the host equipment to cause each double capacity magnetic disk drive to write the first format data on a first half of one side of the double capacity magnetic disk in response to one true index pulse, and the second format data on a second half of the same side in response to one pseudo index pulse. Thus, for example, the complete format data that have been programmed to be written on four double sided small capacity disks can be written on two double sided double capacity disks.
摘要翻译：双电源适配器电路连接在主机设备和一个或多个磁盘驱动器之间，以便适配已被编程为与较小容量磁盘一起使用的主机设备，用于耦合到磁盘驱动器中的双容量磁盘到此。如最初编程的那样，主机设备响应于来自相关磁盘驱动器的索引脉冲而使用具有第一格式数据的小容量磁盘的一侧进行格式化，而另一侧具有响应于另一格式数据的第二格式数据的小容量磁盘索引脉冲为了以相同的程序格式化双容量磁盘，适配器电路将索引脉冲延迟与磁盘的半圈相对应的时间，从而产生伪索引脉冲。适配器电路还使得主机设备能够使每个双倍容量的磁盘驱动器响应于一个真实索引脉冲将第一格式数据写入双倍容量磁盘的一侧的前半部分，并且第二格式数据在一个响应于一个伪指数脉冲的同一侧的后半部分。因此，例如，已编程为写入四个双面小容量磁盘的完整格式数据可以写在两个双面双容量磁盘上。

10. 发明授权

US4677510A Data transfer apparatus with a disklike record medium 失效
标题翻译：具有盘状记录介质的数据传送装置
公开(公告)号：US4677510A
公开(公告)日：1987-06-30
申请号：US699085
申请日：1985-02-07
申请人： Makoto Shoji , Hiroshi Tsuyuguchi , Shozo Toma , Kazuhiro Hiraki , Tsutomu Morita
发明人： Makoto Shoji , Hiroshi Tsuyuguchi , Shozo Toma , Kazuhiro Hiraki , Tsutomu Morita
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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