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1.发明授权Multi-positioner magnetic disk storage apparatus having means for reducing mechanical vibration interference between positioners 失效具有用于减少定位器之间的机械振动干扰的装置的多位置磁盘存储装置
公开(公告)号：US4967293A
公开(公告)日：1990-10-30
申请号：US228942
申请日：1988-08-05
CPC分类号： G11B33/14 , G11B5/5565 , G11B5/59655
摘要： A magnetic disk storage apparatus in which a plurality of magnetic head positioners are independently driven with respect to each other. A housing having a sensor secured thereto indirectly senses mechanical vibration of a magnetic disk and issues a sense signal. The mechanical vibration is inevitably caused by a seek operation of a selected magnetic head positioner. Based on the sense signal, a compensating signal is generated in a mechanical vibration follow-up system disposed in the apparatus. The compensating signal is input to a coil of a driving motor of non-selected magnetic head positioners such that the effect of the mechanical vibration on the other positioners is cancelled. Thus, magnetic heads supported by the other positioners do not become off-track.
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公开(公告)号：US4978902A
公开(公告)日：1990-12-18
申请号：US150220
申请日：1988-01-29
CPC分类号： G11B5/5547 , G11B19/28 , G11B27/3027
摘要： A delay circuit which compensates for a variable phase output of an index signal by delaying the read out index signal. The delay time of the delay circuit depends on the cylinder on which a read/write head is located, and is chosen so that the delayed index signals are generated at an essentially constant phase angle with respect to a reference angular position. The delay circuit may include a counter which is pre-loaded with an address of the cylinder on which the head is located, and which counts number of clock pulses input to the counter. Overflowing of the counter generates the compensated index signal. Thus, synchronous operation of plural disk apparatus is accomplished, when the head seeks a new cylinder.
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公开(公告)号：US5268884A
公开(公告)日：1993-12-07
申请号：US700154
申请日：1992-04-29
CPC分类号： G11B5/5547 , G11B21/083
摘要： A seek control apparatus for a disk apparatus includes the steps of performing a seek operation in which a head (6) is moved from a first position on a recording medium to a second position under control of a processor (4) receiving a first command from an external device (113, 116, 117), and setting a load state of the processor to a state where the processor can accept a command during executing the step (E). Then it is determined whether or not a second command has been supplied to the processor from the external device during a time the step is being executed (121). The seek operation is stopped between the first position and the second position when it is determined by the just above step that the second command has been supplied to the processor (121, 122, 123, 125).
摘要翻译： PCT No.PCT / JP90 / 01176 Sec。 一九九二年四月二十九日 102（e）日期1992年4月29日PCT提交1990年9月13日PCT公布。 出版物WO91 / 04558 1991年4月4日。一种盘装置的寻道控制装置，包括以下步骤：在处理器的控制下进行头（6）从记录介质上的第一位置移动到第二位置的寻道操作 4）从外部设备（113,116,117）接收第一命令，并且将处理器的负载状态设置为在执行步骤（E）期间处理器可以接受命令的状态。 然后确定在执行步骤期间是否从外部设备向处理器提供第二命令（121）。 当通过上述步骤确定第二命令已被提供给处理器（121,122,123,125）时，寻道操作在第一位置和第二位置之间停止。
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公开(公告)号：US07230787B2
公开(公告)日：2007-06-12
申请号：US10963754
申请日：2004-10-13
申请人： Toshifumi Hatagami
发明人： Toshifumi Hatagami
CPC分类号： G11B19/28 , G11B5/5526 , G11B21/12
摘要： An apparatus that controls a head that reads data from and writes data to a recording medium of which a spinning speed is controlled based on a clock signal includes a clock-error detecting unit that detects an error in the clock signal, and a head-retraction control unit that controls the head in such a way that the head is safely retracted when the error is detected by the clock-error detecting unit.
摘要翻译： 一种控制从基于时钟信号控制旋转速度的记录介质读取数据并将数据写入数据的头的装置包括检测时钟信号中的错误的时钟错误检测单元和头部缩回 控制单元，其以当时钟错误检测单元检测到错误时头部被安全地缩回的方式控制头部。
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公开(公告)号：US6163443A
公开(公告)日：2000-12-19
申请号：US158210
申请日：1998-09-22
申请人： Toshifumi Hatagami , Takayuki Bitoh
发明人： Toshifumi Hatagami , Takayuki Bitoh
IPC分类号： G11B5/39 , G11B5/11 , G11B5/40 , G11B5/48 , G11B5/60 , G11B21/21 , G11B25/04 , H05K1/14 , H05K3/36
摘要： An actuator assembly including an actuator arm, a suspension fixed to a front end portion of the actuator arm, and a head slider mounted on a front end portion of the suspension and having a magnetoresistive element. The suspension has a pair of first lead lines each of which has one end connected to the magnetoresistive element, and an easily removable short-circuit pattern for connecting the first lead lines with each other. The actuator assembly further includes a main FPC fixed at one end portion thereof to the actuator arm, and an interconnection FPC having a plurality of second lead lines for interconnecting the first lead lines and a wiring pattern of the main FPC. The interconnection FPC further has a plurality of ground lines for electrically connecting the second lead lines to the actuator arm. In using the actuator assembly in a magnetic disk drive, the short-circuit pattern is fused and each ground line is cut.
摘要翻译： 一种致动器组件，其包括致动器臂，固定到致动器臂的前端部的悬架以及安装在悬架的前端部上并具有磁阻元件的磁头滑块。 悬架具有一对第一引线，每条引线具有连接到磁阻元件的一端，以及用于将第一引线彼此连接的容易拆除的短路图案。 致动器组件还包括固定在致动器臂的一个端部的主FPC，以及具有用于互连第一引线和主FPC的布线图案的多个第二引线的互连FPC。 互连FPC还具有用于将第二引线与致动器臂电连接的多个接地线。 在将驱动器组件用于磁盘驱动器时，短路图案被熔合并且每个接地线被切割。
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公开(公告)号：US20070013359A1
公开(公告)日：2007-01-18
申请号：US11247647
申请日：2005-10-11
申请人： Toshifumi Hatagami
发明人： Toshifumi Hatagami
IPC分类号： G01R31/28
CPC分类号： G01R31/2884
摘要： An integrated circuit has an analog output circuit for outputting an analog signal and a leadless terminal for connecting an output line of the analog output circuit to a circuit board by soldering, and measures and transfers an analog output voltage of the leadless terminal in a state in which it is mounted on the circuit board. A measuring unit has a switching unit for connecting the analog output circuit to the measuring unit upon failure diagnosis, and an AD converter for measuring the analog output voltage of the leadless terminal in a failure diagnosis state obtained by the switching unit; and causes the analog output voltage of the leadless terminal to be determined whether it is a normal voltage or an abnormal voltage by transferring the voltage measured by the AD converter to a determination unit through serial transfer.
摘要翻译： 集成电路具有用于输出模拟信号的模拟输出电路和用于通过焊接将模拟输出电路的输出线连接到电路板的无引线端子，并且以无状态的状态测量和传送无引线端子的模拟输出电压 它安装在电路板上。 测量单元具有用于在故障诊断时将模拟输出电路连接到测量单元的开关单元和用于在由开关单元获得的故障诊断状态下测量无引线端子的模拟输出电压的AD转换器; 并且通过串行传送将由AD转换器测量的电压传送到确定单元，来确定无引线端子的模拟输出电压是否为正常电压或异常电压。
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公开(公告)号：US20050141122A1
公开(公告)日：2005-06-30
申请号：US10963754
申请日：2004-10-13
申请人： Toshifumi Hatagami
发明人： Toshifumi Hatagami
CPC分类号： G11B19/28 , G11B5/5526 , G11B21/12
摘要： An apparatus that controls a head that reads data from and writes data to a recording medium of which a spinning speed is controlled based on a clock signal includes a clock-error detecting unit that detects an error in the clock signal, and a head-retraction control unit that controls the head in such a way that the head is safely retracted when the error is detected by the clock-error detecting unit.
摘要翻译： 一种控制从基于时钟信号控制旋转速度的记录介质读取数据并将数据写入数据的头的装置包括检测时钟信号中的错误的时钟错误检测单元和头部缩回 控制单元，其以当时钟错误检测单元检测到错误时头部被安全地缩回的方式控制头部。
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公开(公告)号：US07511507B2
公开(公告)日：2009-03-31
申请号：US11247647
申请日：2005-10-11
申请人： Toshifumi Hatagami
发明人： Toshifumi Hatagami
IPC分类号： G01R31/02
CPC分类号： G01R31/2884
摘要： An integrated circuit has an analog output circuit for outputting an analog signal and a leadless terminal for connecting an output line of the analog output circuit to a circuit board by soldering, and measures and transfers an analog output voltage of the leadless terminal in a state in which it is mounted on the circuit board. A measuring unit has a switching unit for connecting the analog output circuit to the measuring unit upon failure diagnosis, and an AD converter for measuring the analog output voltage of the leadless terminal in a failure diagnosis state obtained by the switching unit; and causes the analog output voltage of the leadless terminal to be determined whether it is a normal voltage or an abnormal voltage by transferring the voltage measured by the AD converter to a determination unit through serial transfer.
摘要翻译： 集成电路具有用于输出模拟信号的模拟输出电路和用于通过焊接将模拟输出电路的输出线连接到电路板的无引线端子，并且以无状态的状态测量和传送无引线端子的模拟输出电压 它安装在电路板上。 测量单元具有用于在故障诊断时将模拟输出电路连接到测量单元的开关单元和用于在由开关单元获得的故障诊断状态下测量无引线端子的模拟输出电压的AD转换器; 并且通过串行传送将由AD转换器测量的电压传送到确定单元，来确定无引线端子的模拟输出电压是否为正常电压或异常电压。
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9.发明授权Synchronizing signal switching system for synchronizing external storage devices 失效用于同步外部存储设备的同步信号切换系统
公开(公告)号：US5216654A
公开(公告)日：1993-06-01
申请号：US541880
申请日：1990-06-21
申请人： Masahiro Itoh , Toshifumi Hatagami
发明人： Masahiro Itoh , Toshifumi Hatagami
摘要： Disclosed is a synchronizing signal switching system for synchronizing operations of a plurality of disk devices without stopping the system operation even when a currently used synchronizing signal is stopped or deviated from standard. To this end, each disk device comprises a disk unit and a synchronizing signal switching unit for generating a synchronizing signal to be supplied to the disk unit. One of the disk devices is a current master disk device for currently supplying a master synchronizing signal and another one of the disk devices is a next master disk device. The disk devices are connected in a sequence to form a loop through which the master synchronizing signal is transmitted. The synchronizing signal switching unit in each of the disk devices is provided with an inheritance order to become the current master disk device or the next master disk device. When the current master synchronizing signal is deteriorated, the synchronizing signal switching unit having the next inheritance order is switched to supply the synchronizing signal as the current master synchronizing signal to all of the disk devices through the loop.
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