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11.发明申请公开(公告)号：US20090079364A1
公开(公告)日：2009-03-26
申请号：US12232583
申请日：2008-09-19
申请人： Akira Nagumo
发明人： Akira Nagumo
CPC分类号： G03G15/326 , G03G15/043 , H01L2224/48091 , H01L2224/48137 , H01L2924/1305 , H01L2924/13091 , H01L2924/00014 , H01L2924/00
摘要： A driving apparatus is provided that has a plurality of driving circuits formed to correspond to a plurality of driven circuits arranged on a predetermined circuit board, each of the plurality of driving circuits including a driving control unit for driving the corresponding driven circuit, a reference voltage generation unit for generating a reference voltage according to a temperature of the corresponding driven circuit, a control voltage generation unit for generating, based on the reference voltage supplied from the reference voltage generation unit, a control voltage for driving the corresponding driven circuit, the control voltage generation unit supplying the generated control voltage to the driving control unit, a switch device formed between the control voltage generation unit and the reference voltage generation unit, and a switch control unit for driving the switch device based on an inputted control signal, wherein the control voltage generation unit is connected to the reference voltage generation unit of another of the plurality of driving circuits via the switch device.
摘要翻译： 提供一种驱动装置，其具有多个驱动电路，其形成为对应于布置在预定电路板上的多个驱动电路，所述多个驱动电路中的每一个包括用于驱动相应的驱动电路的驱动控制单元，参考电压 产生单元，用于根据对应的驱动电路的温度产生参考电压;控制电压产生单元，用于基于从参考电压产生单元提供的参考电压产生用于驱动相应的驱动电路的控制电压，控制 将产生的控制电压提供给驱动控制单元的电压产生单元，形成在控制电压产生单元和参考电压产生单元之间的开关装置和用于基于输入的控制信号驱动开关装置的开关控制单元，其中， 控制电压发生单元连接到参考 所述多个驱动电路中的另一个的开关电压产生单元经由所述开关装置。
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公开(公告)号：US20080007500A1
公开(公告)日：2008-01-10
申请号：US11693911
申请日：2007-03-30
申请人： Akira Nagumo
发明人： Akira Nagumo
IPC分类号： G09G3/32
CPC分类号： B41J2/0458 , B41J2/04541 , B41J2/04543 , B41J2/04546 , B41J2/0455 , B41J2/04573
摘要： A common data line serially connects a first dot memory group and a second dot memory group in layout order of driven devices so as to form each pair. First word lines are connected to the first dot memory group. Second word lines are connected to the second dot memory group. A data writing section supplies the correction values for the first dot memory group and the correction values for the second dot memory group while shifting the timing and supplies writing signals to the first word lines and the second word lines at predetermined timing. A chip area is reduced and costs of a driving apparatus is reduced.
摘要翻译： 公共数据线以驱动装置的布局顺序串联连接第一点存储器组和第二点存储器组，以形成每对。 第一个字线连接到第一个点存储器组。 第二字线连接到第二点存储器组。 数据写入部分在移动定时的同时提供第一点存储器组的校正值和第二点存储器组的校正值，并且以预定的定时将写入信号提供给第一字线和第二字线。 芯片面积减少，驱动装置的成本降低。
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公开(公告)号：US06535235B1
公开(公告)日：2003-03-18
申请号：US09712151
申请日：2000-11-15
申请人： Akira Nagumo
发明人： Akira Nagumo
IPC分类号： B41J2435
CPC分类号： B41J2/45 , H01L2224/48463
摘要： A drive circuit drives a plurality of light emitting diodes (LED) in an LED array chip. The drive circuit includes a row of drive transistors that supply drive currents to corresponding LEDs, a control circuit that produces a control voltage for driving the drive devices, and a supply voltage electrode that extends along the row. The control circuit has a reference current transistor through which a predetermined reference current flows in accordance with a control voltage applied to the reference current transistor. The control voltage is also supplied to the individual drive devices to cause the drive currents to flow through the corresponding LEDs in reference to the reference current. The supply voltage electrode supplies a supply voltage to each of the drive transistors such that each drive transistor receives its supply voltage from a nearest location on the supply voltage electrode. The reference transistor receives its supply voltage from a substantially mid point of the supply voltage electrode. Two or more reference current transistor may be used in which case they are disposed in the row such that the devices are arranged in a mirror like image with respect to a middle of the row. The sum of the currents flowing through the reference current generating devices serves as the reference current.
摘要翻译： 驱动电路驱动LED阵列芯片中的多个发光二极管（LED）。 该驱动电路包括向相应的LED提供驱动电流的一行驱动晶体管，产生用于驱动驱动装置的控制电压的控制电路和沿该行延伸的电源电压电极。 控制电路具有参考电流晶体管，预定参考电流根据施加到参考电流晶体管的控制电压流过。 控制电压也被提供给各个驱动装置，以使参考电流使驱动电流流过对应的LED。 电源电压电极向每个驱动晶体管提供电源电压，使得每个驱动晶体管从电源电压电极上的最近位置接收其电源电压。 参考晶体管从电源电压电极的大致中点接收其电源电压。 可以使用两个或更多个参考电流晶体管，在这种情况下，它们被布置在行中，使得器件相对于行的中间排列成像镜像的图像。 流过参考电流产生装置的电流之和用作参考电流。
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公开(公告)号：US06400349B1
公开(公告)日：2002-06-04
申请号：US09241727
申请日：1999-02-02
申请人： Akira Nagumo
发明人： Akira Nagumo
IPC分类号： G09G332
CPC分类号： G06K15/1247
摘要： In a first aspect of the invention, a driven element is driven by a static driving element coupled in series with a switching element. The static driving element sets the driving current value. In a second aspect, a plurality of driven elements are driven by respective driving elements, which in turn are driven by respective pre-stage circuits, using a control voltage supplied by a single control-voltage generating circuit. Resistors inserted between the driving elements and pre-stage circuits limit transient current flow to a value within the output capability of the control-voltage generating circuit. In a third aspect, the pre-stage circuits have constant-current output characteristics, and the control-voltage generating circuit is designed to provide the necessary transient current, even when all driven elements are driven simultaneously.
摘要翻译： 在本发明的第一方面，驱动元件由与开关元件串联耦合的静态驱动元件驱动。 静态驱动元件设定驱动电流值。 在第二方面，多个从动元件由相应的驱动元件驱动，驱动元件又由相应的前级电路驱动，使用由单个控制电压产生电路提供的控制电压。 插入在驱动元件和前级电路之间的电阻器将瞬变电流限制在控制电压产生电路的输出能力内的值。 在第三方面，前级电路具有恒定电流输出特性，并且即使当所有驱动元件被同时驱动时，控制电压产生电路也被设计成提供所需的瞬态电流。
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公开(公告)号：US5478156A
公开(公告)日：1995-12-26
申请号：US106199
申请日：1993-08-13
申请人： Hiroshi Kikuchi , Katsuyuki Ito , Shinichi Katakura , Jiro Tanuma , Hiroshi Okada , Kazuhiko Nagaoka , Akira Nagumo
发明人： Hiroshi Kikuchi , Katsuyuki Ito , Shinichi Katakura , Jiro Tanuma , Hiroshi Okada , Kazuhiko Nagaoka , Akira Nagumo
CPC分类号： G06K15/00 , G06K2215/006 , G06K2215/0071 , G06K2215/0077
摘要： A printer includes a controller for providing a sequence control for the printer in its entirety in response to a control signal and a video signal from another controller. A printer head is adapted for latching and printing a printing data signal transmitted from the controller. Print data arithmetic and logic circuitry provides a logical operation processing for video data signals, counting video clock signals transmitted from the controller, and includes storage for storing the video data signals transmitted from the controller, a selector responsive to reference line timing signals for selectively alternately outputting the video data signals, an additional line signal generator for generating from video signals received from the controller, a video data signal representing an additional line destined for between reference lines during an interval of timing, and logical operation circuitry for performing a logical operation for the video data signals read out from the storage and supplying to the printer head the video data signals subjected to the logical operation in the form of the printing data signal.
摘要翻译： 打印机包括控制器，用于响应于来自另一个控制器的控制信号和视频信号而全面地为打印机提供序列控制。 打印机头适于锁定和打印从控制器发送的打印数据信号。 打印数据运算和逻辑电路为视频数据信号提供逻辑运算处理，对从控制器发送的视频时钟信号进行计数，并且包括用于存储从控制器发送的视频数据信号的存储器，响应于参考线定时信号的选择器， 输出视频数据信号，附加线路信号发生器，用于从在控制器接收的视频信号中生成代表在定时间隔期间指定给参考线路的附加行的视频数据信号;以及逻辑运算电路，用于执行逻辑运算 视频数据信号从存储器中读出并以打印数据信号的形式向经过了逻辑运算的视频数据信号提供给打印头。
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公开(公告)号：US09090094B2
公开(公告)日：2015-07-28
申请号：US13021799
申请日：2011-02-07
申请人： Akira Nagumo
发明人： Akira Nagumo
摘要： A driving circuit includes a reference voltage generating circuit and a driver circuit. The driver circuit drives a driven element at a level determined by the reference voltage output by the reference voltage generating circuit. The reference voltage generating circuit includes a regulating section that generates a regulated voltage, a temperature compensation section that applies a temperature compensation to the regulated voltage to compensate for the temperature characteristics of the driven element, and a voltage amplifying section that amplifies the resulting temperature compensated voltage to generate the reference voltage, thereby supplying a reference voltage high enough to avoid noise effects.
摘要翻译： 驱动电路包括基准电压发生电路和驱动电路。 驱动器电路以由参考电压产生电路输出的参考电压确定的电平驱动从动元件。 参考电压产生电路包括产生调节电压的调节部分，对调节电压施加温度补偿以补偿从动元件的温度特性的温度补偿部分，以及放大所得温度补偿的电压放大部分 电压以产生参考电压，从而提供足够高的参考电压以避免噪声影响。
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17.发明授权公开(公告)号：US08884555B2
公开(公告)日：2014-11-11
申请号：US13571056
申请日：2012-08-09
申请人： Akira Nagumo
发明人： Akira Nagumo
IPC分类号： H05B37/00
CPC分类号： H05B33/0842 , B41J2/45
摘要： A light-emitting element array has a plurality of three-terminal light-emitting elements such as light-emitting thyristors with anode, cathode, and gate terminals. The anode terminal of each light-emitting element is connected to a driving circuit. The cathode terminal is grounded. The gate terminals of at least some of the three-terminal light-emitting elements are driven from a common buffer, and within this group of three-terminal light-emitting elements, the anode terminals are driven individually. This enables the array of three-terminal light-emitting elements to be driven in essentially the same way as an array of two-terminal light-emitting elements, but without the need for large power transistors between the cathode terminals and ground.
摘要翻译： 发光元件阵列具有多个三端发光元件，例如具有阳极，阴极和栅极端子的发光晶闸管。 每个发光元件的阳极端子连接到驱动电路。 阴极端子接地。 三端子发光元件中的至少一些的栅极端子从公共缓冲器驱动，并且在该三组端子发光元件组内，单独驱动阳极端子。 这使得三端子发光元件的阵列能够以与两端子发光元件的阵列基本相同的方式驱动，而不需要阴极端子和接地之间的大功率晶体管。
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公开(公告)号：US08848012B2
公开(公告)日：2014-09-30
申请号：US13069792
申请日：2011-03-23
申请人： Akira Nagumo
发明人： Akira Nagumo
CPC分类号： B41J2/435 , G06K15/1238
摘要： A drive device to drive a plurality of three-terminal light emitting elements, comprising: a drive circuit including a first MOS transistor and configured to drive conducting three-terminal light emitting elements among a plurality of three-terminal light emitting elements based on a received drive signal. The first MOS transistor includes: a third terminal connected to a second power supply having a potential different from a potential of the first power supply; a fourth terminal connected to the second terminals connected in common, a second control terminal configured to control a conduction state between the third terminal and the fourth terminal based on the drive signal; and a substrate terminal set to have a potential different from the potential of the second power supply in a direction of increasing threshold voltage of the first MOS transistor.
摘要翻译： 一种用于驱动多个三端子发光元件的驱动装置，包括：驱动电路，包括第一MOS晶体管，其被配置为基于接收到的多个三端发光元件驱动多个三端子发光元件中的导电三端发光元件 驱动信号。 第一MOS晶体管包括：连接到具有与第一电源的电位不同的电位的第二电源的第三端子; 连接到共同连接的第二端子的第四端子，被配置为基于驱动信号控制第三端子和第四端子之间的导通状态的第二控制端子; 以及基板端子，被设定为具有不同于所述第二电源的电位的电位沿所述第一MOS晶体管的阈值电压上升的方向。
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公开(公告)号：US08587628B2
公开(公告)日：2013-11-19
申请号：US13218652
申请日：2011-08-26
申请人： Akira Nagumo
发明人： Akira Nagumo
CPC分类号： B41J2/45
摘要： A driver apparatus drives light emitting elements connected to a common terminal. A clock driver outputs first and second pulses to first and second output terminals, respectively, alternately. A differentiating circuit includes an inductor and a resistor, and differentiates the first and second pulses to produce first and second clocks, respectively. A data driver circuit outputs a data signal to the common terminal in response to an ON/OFF command signal. A scanning circuit starts to operate in response to a starting signal such that the cascaded sub scanning stages turn on in sequence one at a time. A sub scanning stage turns on in response to the second clock, outputting a drive signal to a corresponding one of the light emitting elements. The light emitting elements emit light only when the drive signal and the ON/OFF command signal are fed to the light emitting elements.
摘要翻译： 驱动器装置驱动连接到公共端子的发光元件。 时钟驱动器分别向第一和第二输出端子交替地输出第一和第二脉冲。 微分电路包括电感器和电阻器，并且分别使第一和第二脉冲分别产生第一和第二时钟。 数据驱动电路响应于ON / OFF命令信号将数据信号输出到公共端。 扫描电路响应于启动信号而开始工作，使得级联的子扫描阶段一次依次打开。 子扫描阶段响应于第二时钟导通，将驱动信号输出到对应的一个发光元件。 只有当驱动信号和ON / OFF命令信号被馈送到发光元件时，发光元件才发光。
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20.发明授权Light emitting element array, drive circuit, optical print head, and image forming apparatus 有权发光元件阵列，驱动电路，光学打印头和成像装置公开(公告)号：US08542262B2
公开(公告)日：2013-09-24
申请号：US12615523
申请日：2009-11-10
申请人： Akira Nagumo
发明人： Akira Nagumo
CPC分类号： G03G15/326 , B41J2/45 , G03G15/04054 , H01L2224/48091 , H01L2224/49175 , H01L2924/00014
摘要： A light emitting element array includes a plurality of light emitting elements each having a first terminal, a second terminal, and a third terminal. The light emitting elements are arranged next to each other to form a group. The first terminal receives a drive signal, the second terminal is connected to ground, and the third terminal has a threshold voltage or a threshold current controllable from outside so that the light emitting elements are driven in a time division way.
摘要翻译： 发光元件阵列包括多个具有第一端子，第二端子和第三端子的发光元件。 发光元件彼此相邻地布置以形成组。 第一端子接收驱动信号，第二端子接地，第三端子具有从外部控制的阈值电压或阈值电流，从而以时分方式驱动发光元件。
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