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公开(公告)号：US5330277A
公开(公告)日：1994-07-19
申请号：US964260
申请日：1992-10-21
申请人： Tadashi Kasai , Takao Uchida , Jiro Tanuma , Naoji Akutsu , Chihiro Komori
发明人： Tadashi Kasai , Takao Uchida , Jiro Tanuma , Naoji Akutsu , Chihiro Komori
IPC分类号： B41J2/30
CPC分类号： B41J2/30
摘要： A drive system for a wire dot head is provided with sensors for detecting displacements of corresponding print wires. Each sensor outputs a movement initiation timing signal and an impact timing signal for the corresponding print wire. An electric current to be fed to an associated coil is normally controlled by these timing signals. It is detected whether these timing signals are obtained in a predetermined time period. If not, electric power is continuously fed to the coil or is forcedly cut off so that the timing signals are obtained within the predetermine time period.
摘要翻译： 用于线点头的驱动系统设置有用于检测相应打印线的位移的传感器。 每个传感器输出针对相应打印线的运动启动定时信号和冲击定时信号。 馈送到相关线圈的电流通常由这些定时信号控制。 检测这些定时信号是否在预定时间段内获得。 如果不是，则将电力连续馈送到线圈或强制切断，使得在预定时间段内获得定时信号。
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公开(公告)号：US5295750A
公开(公告)日：1994-03-22
申请号：US15094
申请日：1993-02-09
申请人： Jiro Tanuma , Naoji Akutsu , Takao Uchida , Chihiro Komori , Masaru Ito
发明人： Jiro Tanuma , Naoji Akutsu , Takao Uchida , Chihiro Komori , Masaru Ito
CPC分类号： B41J9/44
摘要： In a wire-dot impact printer having a capacitance detector for detecting a displacement of each armature by a sensor electrode arranged opposite the armature, a space is formed between each sensor electrode and its associated armature, and a shield pattern is formed with a small space left around each sensor electrode. The shield pattern is fed with a potential at least equal to the potential of each sensor electrode. This makes it possible to reduce the influence of noise upon detection of a capacitance by the capacitance detector. A noise canceling electrode is also disposed around each sensor electrode and is connected to the sensor electrode, whereby a noise canceling circuit is further provided to eliminate noise voltage. The noise canceling circuit can eliminate a noise voltage picked up by the sensor electrode and the noise canceling electrode.
摘要翻译： 在具有电容检测器的线点冲击式打印机中，通过与衔铁相对设置的传感器电极检测每个电枢的位移，在每个传感器电极及其相关电枢之间形成空间，并且形成具有小空间的屏蔽图案 留在每个传感器电极周围。 屏蔽图案被馈送至少等于每个传感器电极的电位的电位。 这使得可以通过电容检测器来减小噪声对电容检测的影响。 噪声消除电极也设置在每个传感器电极周围并连接到传感器电极，由此进一步提供噪声消除电路以消除噪声电压。 噪声消除电路可以消除由传感器电极和噪声消除电极拾取的噪声电压。
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公开(公告)号：US5307049A
公开(公告)日：1994-04-26
申请号：US875013
申请日：1992-04-28
申请人： Takao Uchida , Naoji Akutsu , Jiro Tanuma
发明人： Takao Uchida , Naoji Akutsu , Jiro Tanuma
IPC分类号： B41J2/30 , B41J29/38 , B41J29/46 , G06F11/267 , G08B29/00
CPC分类号： G06F11/2221
摘要： A drive current for driving actuators is generated based on a first digital signal comprising n-bit binary data which is supplied from a microprocessor and it is applied to an excitation coil. The drive current is supplied to the exciting coil and is converted into a voltage which is then converted into a second digital signal comprising n-bit binary data. The binary data of the second digital signal is compared with the digital data of the first digital signal to detect an alarm condition. Furthermore, the second digital signal is compared with first and second reference value to set plural alarm conditions.
摘要翻译： 基于包含从微处理器提供的n位二进制数据的第一数字信号产生用于驱动致动器的驱动电流并将其施加到励磁线圈。 驱动电流被提供给励磁线圈，并被转换成电压，然后被转换成包括n位二进制数据的第二数字信号。 将第二数字信号的二进制数据与第一数字信号的数字数据进行比较，以检测报警状况。 此外，将第二数字信号与第一和第二参考值进行比较，以设置多个报警条件。
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4.发明授权Method of controlling a line-feed stepping motor in a printer and a driver circuit therefor 失效控制打印机中的送丝步进电机的方法及其驱动电路
公开(公告)号：US4769585A
公开(公告)日：1988-09-06
申请号：US67247
申请日：1987-06-26
申请人： Jiro Tanuma , Takao Uchida , Chihiro Komori , Kuniharu Hayashi
发明人： Jiro Tanuma , Takao Uchida , Chihiro Komori , Kuniharu Hayashi
CPC分类号： B41J11/42 , H02P8/12 , Y10S400/902
摘要： In a printer in which a printing medium is moved by a line-feed stepping motor during line-feed operation, and the line-feed stepping motor is stopped during printing operation and in a ready state, the line-feed stepping motor is caused to generate a first holding torque for preventing unwanted movement of the printing medium while permitting the operator to feed the printing medium manually, in the ready state of the printer, and the line-feed stepping motor is caused to generate a second holding torque which is greater than the first holding torque, during the printing operation.
摘要翻译： 在一个打印机中，其中一个打印介质在换行操作期间被一个送给步进电机移动，并且送料步进电机在打印操作期间停止并且处于就绪状态，使该送料步进电机 产生第一保持扭矩以防止打印介质的不期望的移动，同时允许操作者在打印机的就绪状态下手动地进给打印介质，并且使给送进步进电机产生更大的第二保持扭矩 比第一个保持转矩，在打印操作期间。
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公开(公告)号：US4780012A
公开(公告)日：1988-10-25
申请号：US863252
申请日：1986-05-14
申请人： Hiroshi Kikuchi , Jiro Tanuma , Takao Uchida , Akira Nagumo , Shyoichi Watanabe , Yukio Ota , Tadao Shimizu
发明人： Hiroshi Kikuchi , Jiro Tanuma , Takao Uchida , Akira Nagumo , Shyoichi Watanabe , Yukio Ota , Tadao Shimizu
CPC分类号： B41J13/103 , B41J11/42 , B41J13/0018
摘要： A paper feeding control system of an automatic paper feeder has a setting device for enabling a position to head a printing medium to be reset. The setting device consists of a read/write enable nonvolatile memory for holding a reset value of the heading position of the printing medium. Upon taking in and setting the printing medium, an operating panel switch is operated to correct the heading position of the printing medium. In addition, the corrected value is again written in the memory, whereby the heading position of the printing medium can be corrected and altered.
摘要翻译： 自动给纸机的送纸控制系统具有一个设置装置，用于使打印介质的位置能够复位。 设置装置由用于保持打印介质的标题位置的复位值的读/写使能非易失性存储器组成。 在接收和设置打印介质时，操作面板开关被操作以校正打印介质的行程位置。 此外，校正值再次写入存储器，由此可以校正和改变打印介质的行进位置。
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6.发明授权DC brushless motor driving method and apparatus for accurately controlling starting position of rotor 失效用于精确控制转子起动位置的直流无刷电机驱动方法和装置
公开(公告)号：US4748387A
公开(公告)日：1988-05-31
申请号：US75034
申请日：1987-07-17
申请人： Jiro Tanuma , Takao Uchida
发明人： Jiro Tanuma , Takao Uchida
摘要： A driving apparatus for controlling the drive of a direct current (DC) brushless motor including a stator having a plurality of armature coils which are provided on a generally circular stator yoke, and a rotatable rotor in which a disk-like magnet having N and S poles arranged alternately in a circumferential direction is provided on a generally circular rotor yoke to face the armature coils, includes a speed sensor for producing outputs responsive to a rotation speed of the rotor, a counter for counting the pulses which are produced by the speed sensors, a control circuit responsive to the speed sensors and counter for controlling the current applied to the armature coils in a predetermined sequence to thereby rotate the rotor, and a mechanism for cancelling a load acting on the rotor. The control circuit, at a start-up of the motor, switches the current applied to the armature coils to excite the armature coils in several different phases to thereby locate the rotor at a starting angular position, in the event when the rotor is located at the starting angular position, cancels a load acting on the rotor, at least before a last one of the phases is excited, subsequently controls rotation drive by counting output pulses of the speed sensor to determine an angular position of the rotor, and controls a rotation direction of the rotor on the basis of output pulses of the speed sensor and on a resulting count of the pulses. Also provided is a driving method for a brushless DC motor for effecting such a control.
摘要翻译： 一种用于控制直流（DC）无刷电动机的驱动的驱动装置，其包括具有设置在大致圆形的定子磁轭上的多个电枢线圈的定子和可旋转的转子，其中具有N和S的盘状磁体 设置在圆周方向上交替布置的磁极设置在大致圆形的转子磁轭上以面对电枢线圈，包括用于产生响应于转子的转速的输出的速度传感器，用于对由速度传感器产生的脉冲进行计数的计数器 ，响应于速度传感器和计数器的控制电路，用于以预定顺序控制施加到电枢线圈的电流，从而使转子旋转，以及用于抵消作用在转子上的负载的机构。 控制电路在马达启动时切换施加于电枢线圈的电流，以在几个不同的相位激发电枢线圈，从而将转子定位在起始角位置，当转子位于 至少在最后一个相被激励之前，启动角位置抵消作用在转子上的负载，随后通过计算速度传感器的输出脉冲来控制旋转驱动以确定转子的角度位置，并且控制旋转 基于速度传感器的输出脉冲的转子方向和脉冲的计数。 还提供了用于实现这种控制的无刷直流电动机的驱动方法。
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公开(公告)号：US5100120A
公开(公告)日：1992-03-31
申请号：US499429
申请日：1990-06-21
申请人： Hiroshi Kikuchi , Jiro Tanuma , Takao Uchida , Akira Nagumo
发明人： Hiroshi Kikuchi , Jiro Tanuma , Takao Uchida , Akira Nagumo
CPC分类号： B41J13/0018 , B65H3/0669 , B65H43/00
摘要： A method of controlling a cut-sheet feeder installed on a printer to feed a cut sheet from a sheet hopper (1) included in the cut-sheet feeder to the printing unit of the printer at a sheet feeding speed corresponding to that of the printer. The printer gives a correction signal (S.sub.1) of a predetermined pulse width to the cut-sheet feeder, and then the cut-sheet feeder converts the pulse width of the correction signal into a corresponding number of pulses of a clock signal generated by its control unit (25), and obtains the difference between the number of pulses of the clock signal and a predetermined reference value to determine the deviation of the frequency of the clock signal from a reference frequency. The difference between the number of pulses of the clock signal and the reference value is added to a reference motor controlling value for driving a stepping motor (4) at a reference speed to obtain a corrected motor controlling value. When the printer gives a sheet feed command signal (S.sub.f) to the cut-sheet feeder, the stepping motor is driven for rotation according to the corrected motor controlling value.
摘要翻译： PCT No.PCT / JP89 / 01061 Sec。 371 1990年6月21日第 102（e）日期1990年6月21日PCT提交1989年10月16日PCT公布。 公开号WO90 / 04520 日期：1990年5月3日。一种控制安装在打印机上的切纸进给器的方法，用于将切片从片材进给器中的片料斗（1）以片材进给速度送入打印机的打印单元 对应于打印机。 打印机向切纸供给器给出预定脉冲宽度的校正信号（S1），然后，切纸进给器将校正信号的脉冲宽度转换成由其控制产生的时钟信号的相应数量的脉冲 单元（25），并且获得时钟信号的脉冲数与预定参考值之间的差，以确定时钟信号与参考频率的频率的偏差。 将时钟信号的脉冲数与基准值之间的差加到以基准速度驱动步进电动机（4）的参考电动机控制值，以获得校正的电动机控制值。 当打印机向切纸进给器给出送纸指令信号（Sf）时，根据修正的电机控制值驱动步进电机旋转。
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公开(公告)号：US5152518A
公开(公告)日：1992-10-06
申请号：US476441
申请日：1991-02-14
申请人： Hiroshi Kikuchi , Jiro Tanuma , Takao Uchida , Akira Nagumo
发明人： Hiroshi Kikuchi , Jiro Tanuma , Takao Uchida , Akira Nagumo
CPC分类号： B41J13/0018 , B65H3/44 , B65H2301/42328
摘要： The operation of an automatic sheet feeder provided with a plurality of sheet hoppers which are used selectively to feed sheets to a printer is controlled. A control unit of the printer supplies a multiplex control signal including a hopper select signal and a sheet delivery signal to the automatic sheet feeder through a single signal line. The width of pulses of the hopper select signal is smaller than a predetermined time, while the width of the sheet delivery signal is greater than the predetermiend time. The pulses of the multiplex control signal are compared with the predetermined time to discriminate the hopper select signal and the sheet delivery signal from each other. That sheet hopper corresponding to the number of pulses of the hopper select signal is selected, and then the automatic feeding of sheets from the selected sheet hopper commences upon the reception of the sheet delivery signal.
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9.发明授权
公开(公告)号：US5196994A
公开(公告)日：1993-03-23
申请号：US584597
申请日：1990-09-19
申请人： Jiro Tanuma , Hideaki Ishimizu , Takao Uchida
发明人： Jiro Tanuma , Hideaki Ishimizu , Takao Uchida
IPC分类号： G06F1/18 , G06F3/00 , G06K7/00 , G06K19/077 , H01R27/00
CPC分类号： G06K7/0086 , G06K19/07743 , G06K7/0047
摘要： A card type integrated circuit device is provided with a terminal arrangement for adapting the device to both 8 bit and 16 bit external systems. The arrangement includes a central terminal array wherein terminals for carrying signals common to both 8 bit and 16 bit systems are disposed, and an end terminal array wherein terminals for carrying signals exclusive to a 16 bit system are disposed.
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10.发明授权Method of leading a moving body driven by a direct current brushless motor to a starting position 失效将由直流无刷电机驱动的移动体引导到起始位置的方法
公开(公告)号：US4631457A
公开(公告)日：1986-12-23
申请号：US666047
申请日：1984-10-29
申请人： Jiro Tanuma , Takao Uchida , Kunihal Hayashi
发明人： Jiro Tanuma , Takao Uchida , Kunihal Hayashi
CPC分类号： H02P6/20 , Y10S400/903
摘要： The present invention relates to a method of leading a moving body, such as a print head carrier of a printer of the like, which is driven by a direct current brushless motor, to a starting position. The direct current brushless motor, which forms part of the present invention, includes a stator including a plurality of armature coils secured on a stator yoke through a substrate, a disk-like magnet having N and S poles arranged alternately in the circumferential direction, the magnet being arranged to confront the armature coils, and a rotatable rotor provided with a speed-detecting slit arranged outside the magnet. Rotating power is obtained by applying an electric current corresponding to the magnetic pole of the magnet to each armature coil. A speed detector detects the speed-detecting slit and puts out a frequency pulse voltage proportional to the speed and a counter counts the output pulses from the speed detector to count out the timing to change the excitation phases to the armature coils so as to continuously rotate the rotor. The method of the present invention is characterized in that a stopper to stop the motion of the moving body is arranged so that at a position of a maximum torque of the direct current brushless motor or a predetermined position close to the maximum torque position, the moving body impinges against the stopper to stop rotation of the rotor, the count number in the counter is reset and the motor is then driven in the reverse direction to lead and locate the moving body at a starting position.
摘要翻译： 本发明涉及一种将由直流无刷电动机驱动的打印机的打印头托架等移动体引导到起始位置的方法。 形成本发明一部分的直流无刷电动机包括定子，其包括通过基板固定在定子磁轭上的多个电枢线圈，具有沿圆周方向交替布置的N和S极的盘状磁体， 磁铁布置为面对电枢线圈，以及设置有设置在磁体外部的速度检测狭缝的可旋转转子。 通过将对应于磁体的磁极的电流施加到每个电枢线圈来获得旋转功率。 速度检测器检测速度检测狭缝并输出与速度成比例的频率脉冲电压，并且计数器对来自速度检测器的输出脉冲进行计数，以计算将激励相位改变为电枢线圈的定时，以便连续旋转 转子。 本发明的方法的特征在于，停止移动体的运动的止动件被布置成使得在直流无刷电动机的最大转矩或接近最大转矩位置的预定位置的位置处，移动 主体撞击止动件以停止转子的旋转，计数器中的计数值被复位，然后马达被反向驱动以引导并将移动体定位在起始位置。
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