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1. 发明授权

US5942744A Card drive apparatus and card 失效
公开(公告)号：US5942744A
公开(公告)日：1999-08-24
申请号：US966573
申请日：1997-11-10
申请人： Masayoshi Kamo , Kazuo Hasegawa , Atsuo Onoda , Yuuji Oomura , Masao Sato , Hidetada Nagaoka , Yukio Izumi , Akira Hashimoto , Keiichi Nishikawa , Yoichi Muratomi , Yasutaka Mizutani
发明人： Masayoshi Kamo , Kazuo Hasegawa , Atsuo Onoda , Yuuji Oomura , Masao Sato , Hidetada Nagaoka , Yukio Izumi , Akira Hashimoto , Keiichi Nishikawa , Yoichi Muratomi , Yasutaka Mizutani
IPC分类号： G11B5/008 , G11B5/39 , G11B5/53 , G11B7/00 , G11B7/003 , G11B7/0033 , G11B11/105 , G11B17/04 , G11B21/04 , G11B25/04 , G06K19/00
CPC分类号： G06K19/044 , G11B11/10554 , G11B17/0408 , G11B21/04 , G11B25/046 , G11B5/00808 , G11B7/0033 , G11B11/1058 , G11B11/10584 , G11B2007/0013 , G11B5/39 , G11B5/53 , G11B7/0031
摘要： A head assembly moving along a long side of a magnetic card, more than one magnetic head rotating in the head assembly for reading/writing data, a rotary transformer and a carriage with a card holding mechanism for keeping a card at a predefined position are provided in a card reader of the present invention. A rotating part of the rotary transformer in the head assembly receives and sends a signal to the magnetic head and a fixing part of the rotary transformer is connected to a reading/writing circuit. On the card of the present invention, which is usually rectangular, there are tracks defined by plural arcs. The arcs are on plural same-size circles whose centers are aligned on one line along the long side of the card. A magnetic card or an optical card can be used for the present invention.

2. 发明授权

US6016959A Card drive apparatus and card 失效
标题翻译：卡驱动装置和卡
公开(公告)号：US6016959A
公开(公告)日：2000-01-25
申请号：US862843
申请日：1997-05-23
申请人： Masayoshi Kamo , Kazuo Hasegawa , Atsuo Onoda , Yuuji Oomura , Masao Sato , Hidetada Nagaoka , Yukio Izumi , Akira Hashimoto , Keiichi Nishikawa , Yoichi Muratomi , Yasutaka Mizutani
发明人： Masayoshi Kamo , Kazuo Hasegawa , Atsuo Onoda , Yuuji Oomura , Masao Sato , Hidetada Nagaoka , Yukio Izumi , Akira Hashimoto , Keiichi Nishikawa , Yoichi Muratomi , Yasutaka Mizutani
IPC分类号： G11B5/008 , G11B5/39 , G11B5/53 , G11B7/00 , G11B7/003 , G11B7/0033 , G11B11/105 , G11B17/04 , G11B21/04 , G11B25/04 , G06K7/08
CPC分类号： G06K19/044 , G11B11/10554 , G11B17/0408 , G11B21/04 , G11B25/046 , G11B5/00808 , G11B7/0033 , G11B11/1058 , G11B11/10584 , G11B2007/0013 , G11B5/39 , G11B5/53 , G11B7/0031
摘要： A head assembly moving along a long side of a magnetic card, more than one magnetic head rotating in the head assembly for reading/writing data, a rotary transformer and a carriage with a card holding mechanism for keeping a card at a predefined position are provided in a card reader of the present invention. A rotating part of the rotary transformer in the head assembly receives and sends a signal to the magnetic head and a fixing part of the rotary transformer is connected to a reading/writing circuit. On the card of the present invention, which is usually rectangular, there are tracks defined by plural arcs. The arcs are on plural same-size circles whose centers are aligned on one line along the long side of the card. A magnetic card or an optical card can be used for the present invention.
摘要翻译：提供了一种沿着磁卡的长边移动的头部组件，在头部组件中旋转以读取/写入数据的多于一个的磁头，具有用于将卡保持在预定位置的卡保持机构的旋转变压器和滑架在本发明的读卡器中。头部组件中的旋转变压器的旋转部分接收并发送信号到磁头，并且旋转变压器的固定部分连接到读/写电路。在通常为矩形的本发明的卡上，存在由多个弧定义的轨道。圆弧在多个相同大小的圆上，其中心沿着卡的长边在一条线上对准。磁卡或光卡可用于本发明。

3. 发明授权

US5616994A Drive circuit for brushless motor 失效
标题翻译：无刷电机驱动电路
公开(公告)号：US5616994A
公开(公告)日：1997-04-01
申请号：US370575
申请日：1995-01-06
申请人： Hidetada Nagaoka , Atsuo Onoda , Yukio Izumi , Keiichi Nishikawa , Yuuji Oomura , Mitinaga Suzuki , Kiyotaka Hoshi
发明人： Hidetada Nagaoka , Atsuo Onoda , Yukio Izumi , Keiichi Nishikawa , Yuuji Oomura , Mitinaga Suzuki , Kiyotaka Hoshi
IPC分类号： H02P6/06 , H02P6/14 , H02P6/16 , H02P6/18 , H02P6/20 , H02P7/00
CPC分类号： H02P6/188 , H02P6/06 , H02P6/14 , H02P6/17 , H02P6/18 , H02P6/20 , H02P2209/07
摘要： A brushless motor driving circuit is provided for obtaining a reliable starting and stable rotation driving irrespective of the load condition of the motor. The brushless motor driving circuit has a terminal voltage detector located at each phase of the armature windings of the motor, a terminal voltage compensator for adding or subtracting a compensation value to/from the terminal voltage of the armature windings detected at respective phases during actual driving periods, and a comparator for comparing respective terminal voltages to obtain a rotor location signal after compensation has been performed. The compensation value is determined by a resistor of the armature winding and a winding current. The armature windings are driven by the rotor location signal detected at the comparator.
摘要翻译：提供一种无刷马达驱动电路，用于获得可靠的起动和稳定的旋转驱动，而与马达的负载条件无关。无刷电动机驱动电路具有位于电动机的电枢绕组的各相的端子电压检测器，用于在实际驱动期间在各相检测到的电枢绕组的端子电压加/减补偿值的端子电压补偿器以及用于比较各端电压以获得补偿后的转子位置信号的比较器。补偿值由电枢绕组的电阻和绕组电流决定。电枢绕组由比较器检测到的转子位置信号驱动。

4. 发明授权

US5870248A Frame for flexible disk drive unit having distortion prevention hole and 2 ribs formed around motor attaching hole 失效
标题翻译：具有防失真孔的软盘驱动单元框架和电机安装孔周围形成2个肋
公开(公告)号：US5870248A
公开(公告)日：1999-02-09
申请号：US957312
申请日：1997-10-23
申请人： Satoru Akutsu , Kazuya Oda , Katsumi Kurita , Hideto Nishimura , Koichi Okubo , Hiroshi Ito , Yukio Izumi , Hidetada Nagaoka , Keiichi Nishikawa , Atsuo Onoda , Yuji Ohmura
发明人： Satoru Akutsu , Kazuya Oda , Katsumi Kurita , Hideto Nishimura , Koichi Okubo , Hiroshi Ito , Yukio Izumi , Hidetada Nagaoka , Keiichi Nishikawa , Atsuo Onoda , Yuji Ohmura
IPC分类号： G11B19/20 , G11B25/04 , G11B33/12
CPC分类号： G11B33/121 , G11B19/2009 , G11B25/043
摘要： A flexible disk drive unit including a spindle motor for driving to rotate a magnetic disk; magnetic heads opposing the magnetic disk; a carriage attached to a frame and movable in a radius direction of the magnetic disk; wherein the frame and a motor base constitute a common member and the spindle motor is of a sensorless drive system and is directly attached to the frame; and wherein the frame is provided with an attaching hole for erecting a bearing of the spindle motor of the sensorless drive system on the frame.
摘要翻译：一种软盘驱动单元，包括用于驱动磁盘旋转的主轴电动机; 与磁盘相对的磁头; 附接到框架并可沿着磁盘的半径方向移动的滑架; 其中所述框架和电动机基座构成公共构件，并且所述主轴电机是无传感器驱动系统并且直接附接到所述框架; 并且其中所述框架设置有用于在所述框架上架设所述无传感器驱动系统的主轴电机的轴承的安装孔。

5. 发明授权

US5327299A Method of encoding position information 失效
标题翻译：编码位置信息的方法
公开(公告)号：US5327299A
公开(公告)日：1994-07-05
申请号：US59724
申请日：1993-05-10
申请人： Keiichi Nishikawa , Yuji Ohmura
发明人： Keiichi Nishikawa , Yuji Ohmura
IPC分类号： G11B20/12 , G06F11/10 , G11B5/596 , G11B20/18 , H03M7/16 , G11B21/08
CPC分类号： G11B5/59633
摘要： A method of encoding position information of each recording portion on a recording medium with a predetermined number of information units, which includes the step of composing position information codes such that the first position information code of the first recording portion is different by one information unit from the second position information code of the second recording portion which is spaced by one recording portion from the first recording portion, by two information units from the third position information code of the third recording portion which is spaced by two recording portions, and by three information units or more from the fourth position information code of the fourth recording portion which is spaced by three recording portions or more.
摘要翻译：一种在具有预定数量的信息单元的记录介质上对每个记录部分的位置信息进行编码的方法，其包括以下步骤：组合位置信息代码，使得第一记录部分的第一位置信息代码由一个信息单元第二记录部分的第二位置信息代码，由来自第一记录部分的一个记录部分的两个信息单元从第三记录部分的由两个记录部分间隔的第三位置信息代码和三个信息第四记录部分的第四位置信息代码以三记录部分间隔以上的单位以上。

6. 发明授权

US5996111A Identification sequence issuing device and identification sequence verification device 失效
标题翻译：识别序列发布装置和识别序列验证装置
公开(公告)号：US5996111A
公开(公告)日：1999-11-30
申请号：US736914
申请日：1996-10-25
申请人： Hideo Yoshida , Takahiko Nakamura , Keiichi Nishikawa
发明人： Hideo Yoshida , Takahiko Nakamura , Keiichi Nishikawa
IPC分类号： G07F7/08 , G07F7/10 , G09C1/00 , H03M13/00 , H04L1/00 , H04L9/08
CPC分类号： H04L1/0057 , G07F7/10
摘要： An identification sequence issuing device comprising a code converter portion for converting an identification sequence character string that may include letters, numerals, and the like, into a string of character codes having one-to-one correspondence to the characters in the character string, and a check and selection portion for selecting as an identification sequence the character string corresponding to a character code string that is determined to meet a Reed-Solomon code rule with each character code being a symbol of the Reed-Solomon code and the character code string length being the length of the Reed-Solomon code. The identification sequence is issued based on the Reed-Solomon code of a generating polynomial having a plurality of initial elements as roots, and for additional issuing, identification sequences are issued based on the Reed-Solomon code with the number of roots of the generating polynomial reduced by 1.
摘要翻译：一种识别序列发布装置，包括：代码转换器部分，用于将包括字母，数字等的识别序列字符串转换成与字符串中的字符具有一一对应关系的一串字符代码;以及检查选择部分，用于选择与被确定为满足Reed-Solomon码规则的字符代码串相对应的字符串作为识别序列，其中每个字符代码是Reed-Solomon码的符号和字符码串长度是里德 - 所罗门代码的长度。基于具有多个初始元素作为根的生成多项式的里德 - 所罗门码发出识别序列，并且对于附加发布，基于具有生成多项式的根数的里德 - 所罗门码发出识别序列减少1。

7. 发明授权

US5204788A Digital magnetic recording and reproducing circuit for suppressing generation of asymmetry 失效
标题翻译：用于抑制不对称的产生的数字磁记录和再现电路
公开(公告)号：US5204788A
公开(公告)日：1993-04-20
申请号：US714643
申请日：1991-06-13
申请人： Yasuhide Kasagi , Keiichi Nishikawa , Yuzou Maruta
发明人： Yasuhide Kasagi , Keiichi Nishikawa , Yuzou Maruta
IPC分类号： G11B5/09
CPC分类号： G11B5/09
摘要： A magnetic recording and reproducing circuit comprises a recording and reproducing head including a recording coil; an erasing head disposed upstream of the recording and reproducing head and including an erasing coil; a flip-flop which receives pulse-shaped record data and outputs an output signal which reverses the state in accordance with the pulses of the recording data; a delay circuit which receives the output of the flip-flop and delays such output by a predetermined period of time; a record driver which receives the output of the delay circuit for causing a recording current to flow through the recording coil of the recording and reproducing head; and an erasing circuit for causing an erasing current to flow through the erasing coil of the erasing head at the time of recording.
摘要翻译：磁记录和再现电路包括一记录和再现头，包括一记录线圈; 擦除头，其设置在记录和再现头的上游并包括擦除线圈; 触发器，其接收脉冲状记录数据并输出根据记录数据的脉冲反转状态的输出信号; 延迟电路，其接收所述触发器的输出并将所述输出延迟预定时间段; 接收用于使记录电流流过记录和再现头的记录线圈的延迟电路的输出的记录驱动器; 以及擦除电路，用于在记录时使擦除电流流过擦除头的擦除线圈。

8. 发明申请

US20090095364A1 Fluid flow distribution and supply unit and flow distribution control program 审中-公开
标题翻译：流体流量分配和供应单元和流量分配控制程序
公开(公告)号：US20090095364A1
公开(公告)日：2009-04-16
申请号：US12230928
申请日：2008-09-08
申请人： Kazutoshi Itoh , Yasunori Nishimura , Keiichi Nishikawa , Akihito Sugino
发明人： Kazutoshi Itoh , Yasunori Nishimura , Keiichi Nishikawa , Akihito Sugino
IPC分类号： F16K13/00
CPC分类号： C23C16/45523 , C23C16/45561 , Y10T137/877
摘要： A fluid flow distribution and supply unit for distributing and supplying a fluid is adapted to immediately control a flow rate of a fluid to be distributed and promptly output the fluid at a predetermined flow distribution ratio. The fluid flow distribution and supply unit comprises a flow rate control device for controlling a flow rate of the fluid and a plurality of on/off valves connected to a secondary side of the flow rate control device. The on/off valves are duty controlled to open and close by determining one cycle corresponding to an operation period of the on/off valves and time-dividing the one cycle at the flow distribution ratio.
摘要翻译：用于分配和供应流体的流体流动分配和供应单元适于立即控制要分配的流体的流量并且以预定的流量分配比迅速地输出流体。流体流量分配和供给单元包括用于控制流体的流量的流量控制装置和连接到流量控制装置的次级侧的多个开/关阀。通过确定与开/关阀的操作周期相对应的一个周期并且以流量分配比时间分割一个周期，开/关阀被负责控制以打开和关闭。

9. 发明授权

US5153788A Method of recording and detecting servo information for positioning magnetic head 失效
标题翻译：记录和检测用于定位磁头的伺服信息的方法
公开(公告)号：US5153788A
公开(公告)日：1992-10-06
申请号：US501050
申请日：1990-03-28
申请人： Keiichi Nishikawa , Shigemasa Yoshida
发明人： Keiichi Nishikawa , Shigemasa Yoshida
IPC分类号： G11B5/596 , G11B19/04 , G11B27/30
CPC分类号： G11B5/59616 , G11B19/04 , G11B27/3027
摘要： Magnetization inversion data at different frequencies are recorded as part of servo information before and after an erasing gap between a data sector and a servo sector, the time interval between pulses read out from these magnetization inversion data is detected using a gap detection timer, and a timing for reading out servo information is obtained according to the result of detection by the gap detection timer.
摘要翻译：在数据扇区和伺服扇区之间的擦除间隙之前和之后记录不同频率的磁化反转数据作为伺服信息的一部分，使用间隙检测定时器检测从这些磁化反转数据读出的脉冲之间的时间间隔，根据间隙检测定时器的检测结果，得到读取伺服信息的定时。

10. 发明授权

US4757395A Waveform equalizing circuit 失效
标题翻译：波形均衡电路
公开(公告)号：US4757395A
公开(公告)日：1988-07-12
申请号：US944935
申请日：1986-12-22
申请人： Keiichi Nishikawa , Yuji Ohmura
发明人： Keiichi Nishikawa , Yuji Ohmura
IPC分类号： H03H15/00 , G11B5/035 , G11B20/10 , H04B3/04 , G11B5/09 , G11B5/03
CPC分类号： G11B5/035
摘要： In order to reduce the interference of readout signal waves that increases with the recording density in a magnetic disk device, the readout circuit is provided with a waveform equalizing circuit consisting of a resistance circuit, a delay line, and a differential amplifier to produce a signal advanced by a certain time and attenuated by a certain degree and a signal delayed by a certain time and attenuated by a certain degree. These signals are subtracted from the original signal to decrease the half-value width of the readout signal, thus reducing the interference between the waves. However, these conventional attenuation factors of the advanced and delayed signals cannot be changed freely so that the half-value width of a readout signal cannot fully be decreased without increasing the undershoot in the head or tail portion. Thus, an inverse signal applying circuit is provided to apply the inverted signal to the other end of the resistance circuit to allow complete control of the attenuation factors of the advanced and delayed signals, respectively.
摘要翻译：为了减小随着磁盘装置中的记录密度而增加的读出信号波的干扰，读出电路设置有由电阻电路，延迟线和差分放大器组成的波形均衡电路，以产生信号提前一定时间，衰减一定程度，信号延迟一定时间并衰减一定程度。从原始信号中减去这些信号以减小读出信号的半值宽度，从而减少波之间的干扰。然而，这些传统的先进和延迟信号的衰减因子不能自由地改变，使得读出信号的半值宽度不能完全降低，而不增加头部或尾部的下冲。因此，提供反向信号施加电路以将反相信号施加到电阻电路的另一端，以分别完全控制先进信号和延迟信号的衰减因子。

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