公开(公告)号：US08419147B2

公开(公告)日：2013-04-16

申请号：US12605480

申请日：2009-10-26

申请人： Noritaka Ide ,  Kunio Tabata ,  Shinichi Miyazaki ,  Atsushi Oshima ,  Hiroyuki Yoshino ,  Nobuaki Azami

发明人： Noritaka Ide ,  Kunio Tabata ,  Shinichi Miyazaki ,  Atsushi Oshima ,  Hiroyuki Yoshino ,  Nobuaki Azami

IPC分类号： B41J29/38 ,  B41J2/045

CPC分类号： B41J2/0459 ,  B41J2/04548 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/04588

摘要： A fluid ejection device that ejects fluid from an ejection port includes: a drive element that ejects fluid in accordance with a difference between voltages applied to a first terminal and a second terminal; a drive voltage waveform storing unit that stores a drive voltage waveform applied to the drive element; a plurality of power supplies each having a different voltage; and a drive voltage waveform applying unit that applies the drive voltage waveform to the drive element by switching among the plurality of power supplies connected to the first and second terminals of the drive element.

摘要翻译： 从喷射口喷出流体的流体喷射装置包括：驱动元件，其根据施加到第一端子和第二端子的电压之间的差异喷射流体; 驱动电压波形存储单元，其存储施加到驱动元件的驱动电压波形; 多个电源，每个电源具有不同的电压; 以及驱动电压波形施加单元，其通过在连接到驱动元件的第一和第二端子的多个电源之间切换来向驱动元件施加驱动电压波形。

公开(公告)号：US08398194B2

公开(公告)日：2013-03-19

申请号：US12623625

申请日：2009-11-23

申请人： Hiroyuki Yoshino ,  Atsushi Oshima ,  Noritaka Ide ,  Kunio Tabata ,  Nobuaki Azami ,  Shinichi Miyazaki

发明人： Hiroyuki Yoshino ,  Atsushi Oshima ,  Noritaka Ide ,  Kunio Tabata ,  Nobuaki Azami ,  Shinichi Miyazaki

IPC分类号： B41J29/38 ,  B41J2/015

CPC分类号： H03F3/217 ,  B41J2/04541 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04593 ,  B41J2/04596 ,  H03F3/2171 ,  H03F3/2173

摘要： A power amplifier includes: a modulator pulse-modulating a drive waveform signal serving as a reference of a drive signal applied to an actuator and outputting a plurality of modulated signals; a digital power amplifier having a plurality of digital power amplifier stages each including a pair of push-pull switching elements, amplifying the power of the plurality of modulated signals, and outputting multi-value amplified digital signals; and a low pass filter smoothing the amplified digital signals and outputting the drive signal, wherein the modulator includes a control section switching one of a state where the same modulated signal is connected to two or more of the digital power amplifier stages and a state where different modulated signals are connected to different digital power amplifier stages to the other.

公开(公告)号：US08693225B2

公开(公告)日：2014-04-08

申请号：US12605475

申请日：2009-10-26

申请人： Hiroyuki Yoshino ,  Nobuaki Azami ,  Shinichi Miyazaki ,  Kunio Tabata ,  Atsushi Oshima ,  Noritaka Ide

发明人： Hiroyuki Yoshino ,  Nobuaki Azami ,  Shinichi Miyazaki ,  Kunio Tabata ,  Atsushi Oshima ,  Noritaka Ide

IPC分类号： H02J1/10

CPC分类号： B41J2/14274 ,  B41J2/04541 ,  B41J2/04581 ,  B41J2/04588

摘要： An electric load driving circuit for driving an electric load having a capacity component includes a plurality of power sources generating different voltages, capacitors provided parallel to the plurality of power sources, a switch control unit that switches connections between the capacitors and the electric load and thereby switching a voltage applied to the electric load, discharge paths that enable discharging electric charge stored in the capacitor, and a discharge control unit that controls a quantity of electric charge discharged from the discharge paths.

摘要翻译： 用于驱动具有电容分量的电负载的电负载驱动电路包括产生不同电压的多个电源，与多个电源并联设置的电容器，切换电容器与电负载之间的连接的开关控制单元 切换施加到电负载的电压，能够放电存储在电容器中的电荷的放电路径;以及放电控制单元，其控制从放电路径排出的电荷量。

公开(公告)号：US08022743B2

公开(公告)日：2011-09-20

申请号：US12582766

申请日：2009-10-21

申请人： Shinichi Miyazaki ,  Hiroyuki Yoshino ,  Nobuaki Azami ,  Atsushi Oshima ,  Noritaka Ide ,  Kunio Tabata

发明人： Shinichi Miyazaki ,  Hiroyuki Yoshino ,  Nobuaki Azami ,  Atsushi Oshima ,  Noritaka Ide ,  Kunio Tabata

IPC分类号： H03K3/017

CPC分类号： H03K7/08 ,  B41J2/04541 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04593 ,  B41J2/04596 ,  H03K5/15013 ,  H03K2005/00247

摘要： A pulse width modulation circuit includes: a reference signal generator which generates a plurality of mutually differing reference signals; a comparator which compares the reference signals and an input signal with respect to magnitude, and outputs results of the comparison as a plurality of comparison signals with mutually differing phases; and a synthesizer which, using a logical operation, outputs the plurality of comparison signals output from the comparator as a pulse width modulated signal configured of one or more binary signals.

摘要翻译： 脉冲宽度调制电路包括：参考信号发生器，其生成多个相互不同的参考信号; 比较器，比较参考信号和输入信号相对于幅度，并将比较结果作为具有相互不同相位的多个比较信号; 以及合成器，其使用逻辑运算将从比较器输出的多个比较信号作为由一个或多个二进制信号配置的脉宽调制信号输出。

公开(公告)号：US08313170B2

公开(公告)日：2012-11-20

申请号：US12605466

申请日：2009-10-26

申请人： Kunio Tabata ,  Nobuaki Azami ,  Hiroyuki Yoshino ,  Shinichi Miyazaki ,  Atsushi Oshima ,  Noritaka Ide

发明人： Kunio Tabata ,  Nobuaki Azami ,  Hiroyuki Yoshino ,  Shinichi Miyazaki ,  Atsushi Oshima ,  Noritaka Ide

IPC分类号： B41J2/045 ,  B41J29/38

CPC分类号： B41J2/0459 ,  B41J2/04548 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/04588

摘要： A fluid ejection device configured to eject fluid from an ejection port includes a driving element that pressurizes the fluid and causes it to be ejected from the ejection port by being driven according to a voltage applied thereto. A driving voltage waveform selecting unit selects a driving voltage waveform to be applied to the driving element from among a plurality of types of the stored driving voltage waveforms. Power sources set the voltage to be outputted. A power source voltage determining unit determines voltages to be set to the power sources on the basis of the selected driving voltage waveform. A driving voltage waveform applying unit applies the selected driving voltage waveform to the driving element by setting the determined voltages to the power sources and connecting the power sources to the driving element while switching the same.

摘要翻译： 构造成从喷射口喷射流体的流体喷射装置包括驱动元件，该驱动元件对流体进行加压，并通过根据施加到喷射口的电压被驱动而从喷射口喷射。 驱动电压波形选择单元从多种存储的驱动电压波形中选择施加到驱动元件的驱动电压波形。 电源设置要输出的电压。 电源电压确定单元基于所选择的驱动电压波形确定要设置到电源的电压。 驱动电压波形施加单元通过将确定的电压设置到电源并将电源连接到驱动元件而将所选择的驱动电压波形施加到驱动元件，同时切换该驱动电压波形。

公开(公告)号：US08172373B2

公开(公告)日：2012-05-08

申请号：US12724816

申请日：2010-03-16

申请人： Atsushi Oshima ,  Shinichi Miyazaki ,  Kunio Tabata ,  Nobuaki Azami ,  Hiroyuki Yoshino ,  Noritaka Ide

发明人： Atsushi Oshima ,  Shinichi Miyazaki ,  Kunio Tabata ,  Nobuaki Azami ,  Hiroyuki Yoshino ,  Noritaka Ide

IPC分类号： B41J2/045

CPC分类号： B41J2/04581 ,  B41J2/04541 ,  B41J2/04555 ,  B41J2/0457

摘要： A fluid ejection device including, a drive element capable of storing a charge depending on a voltage applied to the drive element, a first capacitor, a second capacitor, and a power recovery module that recovers power from the drive element by connecting the first capacitor and the second capacitor to the drive element in series, wherein the power recovery module switches the first capacitor out of the in-series connection to further recover power from the drive element.

摘要翻译： 一种流体喷射装置，包括：能够根据施加到驱动元件的电压存储电荷的驱动元件，第一电容器，第二电容器和功率恢复模块，其通过连接第一电容器和第二电容器来恢复来自驱动元件的电力; 所述驱动元件串联的所述第二电容器，其中所述功率恢复模块将所述第一电容器切换为所述串联连接，以进一步从所述驱动元件恢复功率。

公开(公告)号：US07880539B2

公开(公告)日：2011-02-01

申请号：US12615744

申请日：2009-11-10

申请人： Kunio Tabata ,  Atsushi Oshima ,  Noritaka Ide ,  Shinichi Miyazaki ,  Hiroyuki Yoshino ,  Nobuaki Azami

发明人： Kunio Tabata ,  Atsushi Oshima ,  Noritaka Ide ,  Shinichi Miyazaki ,  Hiroyuki Yoshino ,  Nobuaki Azami

IPC分类号： H03F3/38

CPC分类号： H03F3/217 ,  B41J2/04541 ,  B41J2/04568 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04593 ,  B41J2/04596

摘要： A power amplifier includes: a modulator pulse-modulating a drive waveform signal serving as a reference of a drive signal applied to actuators and outputting a modulated signal; a digital power amplifier amplifying the power of the modulated signal and outputting an amplified digital signal; a low pass filter smoothing the amplified digital signal and outputting the drive signal; and an inverse filter circuit being disposed at a front stage of the modulator and capable of obtaining a desired waveform precision of the drive signal even when a frequency characteristic of a filter including the low pass filter and an electrostatic capacitor of the actuators varies depending on the number of driven actuators, wherein the inverse filter circuits include a plurality of inverse filters connected in series.

摘要翻译： 功率放大器包括：调制器，用于对驱动波形信号进行脉冲调制，所述驱动波形信号用作施加到致动器的驱动信号的参考，并输出调制信号; 数字功率放大器，放大调制信号的功率并输出放大的数字信号; 低通滤波器平滑放大的数字信号并输出​​驱动信号; 并且反相滤波器电路设置在调制器的前级，并且即使当包括低通滤波器的滤波器和致动器的静电电容器的频率特性根据所述驱动信号的频率特性变化时，也能够获得所需的驱动信号的波形精度 驱动致动器的数量，其中逆滤波器电路包括串联连接的多个反相滤波器。

公开(公告)号：US08029082B2

公开(公告)日：2011-10-04

申请号：US12147351

申请日：2008-06-26

申请人： Nobuaki Azami ,  Hirokazu Nunokawa

发明人： Nobuaki Azami ,  Hirokazu Nunokawa

IPC分类号： B41J29/38 ,  B41J2/175

CPC分类号： B41J2/04588 ,  B41J2/04563 ,  B41J2/04571 ,  B41J2/04581

摘要： A liquid discharging apparatus includes a head that is driven in response to a driving signal to discharge liquid, a controller that drives the head by generating the driving signal, an adjustment unit that adjusts the temperature of the liquid, and a supply path that supplies the head with the liquid having the temperature adjusted by the adjustment unit. The controller alters the driving signal in accordance with a flow amount of the liquid, which flows in the supply path.

摘要翻译： 液体排出装置包括：响应驱动信号驱动排出液体的头部;通过产生驱动信号驱动头部的控制器;调节液体温度的调节单元;以及供给通道 头部具有由调节单元调节的温度的液体。 控制器根据在供给路径中流动的液体的流量来改变驱动信号。

公开(公告)号：US07992978B2

公开(公告)日：2011-08-09

申请号：US12061561

申请日：2008-04-02

申请人： Nobuaki Azami ,  Hirokazu Nunokawa

发明人： Nobuaki Azami ,  Hirokazu Nunokawa

IPC分类号： B41J2/175 ,  B41J29/38

CPC分类号： B41J2/17509 ,  B41J11/007 ,  B41J11/0085

摘要： A liquid ejecting apparatus includes a head group having a plurality of heads provided with supply ports for supplying liquid to the heads, the heads being arranged in a nozzle-array direction and ejecting the liquid therefrom to form an image; and a heating portion that heats the liquid to be supplied to the head group, the heating portion being disposed between the supply ports of the heads located at opposite ends in the nozzle-array direction.

摘要翻译： 一种液体喷射装置，包括具有多个头部的头部组件，头部具有用于向头部供应液体的供给口，头部以喷嘴排列方向布置并从其喷出液体以形成图像; 以及加热部，其将要供给到头组的液体加热，加热部设置在位于喷嘴排列方向的相对端的头部的供给口之间。

公开(公告)号：US07866777B2

公开(公告)日：2011-01-11

申请号：US11935225

申请日：2007-11-05

申请人： Nobuaki Azami

发明人： Nobuaki Azami

IPC分类号： B41J29/38

CPC分类号： B41J2/04593 ,  B41J2/04581 ,  B41J2/04588

摘要： A liquid ejecting apparatus includes a liquid ejecting head having a pressure chamber communicating with a nozzle opening and a pressure generator capable of causing pressure fluctuation to liquid in the pressure chamber, the liquid ejecting head causing pressure fluctuation to the liquid in the pressure chamber by driving the pressure generator, and discharging the liquid from the nozzle opening due to the pressure fluctuation, and a driver that supplies a discharge pulse to the pressure generator to drive the pressure generator. The discharge pulse that the driver generates includes a preliminary contracting element that contracts the pressure chamber without discharging a liquid droplet, a holding element that maintains the voltage at the end of the preliminary contracting element for a predetermined amount of time, a preliminary expanding element that changes the voltage so as to expand the pressure chamber to pull in the meniscus, and a discharging element that changes the voltage so as to contract the expanded pressure chamber to discharge a liquid droplet. The duration of the preliminary contracting element is set to the natural vibration period Tc of the pressure chamber or more, and the duration from the beginning of the preliminary contracting element to the end of the holding element is set to three times the natural vibration period Tc.

摘要翻译： 液体喷射装置包括具有与喷嘴开口连通的压力室和能够使压力室内的液体发生压力波动的压力发生器的液体喷射头，液体喷射头通过驱动使压力室内的液体产生压力波动 压力发生器，并且由于压力波动而从喷嘴开口排出液体;以及驱动器，其将压力脉冲提供给压力发生器以驱动压力发生器。 驾驶员产生的排出脉冲包括在不排出液滴的状态下收缩压力室的预备收缩元件，将预备收缩元件的端部的电压维持预定量的保持元件，预定膨胀元件， 改变电压以扩大压力室以拉入弯液面;以及放电元件，其改变电压以使压缩室收缩以排出液滴。 将初始收缩元件的持续时间设定为压力室的固有振动周期Tc以上，从初期收缩元件开始到保持元件结束的持续时间设定为固有振动周期Tc的3倍 。