公开(公告)号：US20090213152A1

公开(公告)日：2009-08-27

申请号：US12389525

申请日：2009-02-20

申请人： Kunio Tabata ,  Atsushi Oshima ,  Noritaka Ide ,  Shinichi Miyazaki ,  Hiroyuki Aizawa ,  Seiichi Taniguchi

发明人： Kunio Tabata ,  Atsushi Oshima ,  Noritaka Ide ,  Shinichi Miyazaki ,  Hiroyuki Aizawa ,  Seiichi Taniguchi

IPC分类号： B41J29/38

CPC分类号： B41J29/38 ,  B41J2/04541 ,  B41J2/0455 ,  B41J2/04581 ,  B41J2/04593 ,  B41J2/04596

摘要： A liquid jet apparatus according to the invention is a liquid jet apparatus adapted to emit a jet of a liquid by driving an actuator of a liquid jet head with a drive signal including a digital power amplifier and a low pass filter provided to the liquid jet head so as to correspond to the actuator, and adapted to power-amplify and smooth a modified signal from a control circuit to form the drive signal, wherein the low pass filter is coupled directly with the actuator, and the digital power amplifier is provided with a pair of switching elements and a gate drive circuit, and ON-OFF controls the gate drive circuit based on print data, thereby performing one of output and halt of the drive signal.

摘要翻译： 根据本发明的液体喷射装置是一种液体喷射装置，其适于通过驱动液体喷射头的致动器来发射液体射流，该驱动信号包括提供给液体喷射头的数字功率放大器和低通滤波器 以便对应于所述致动器，并且适于对来自控制电路的修改信号进行功率放大和平滑以形成所述驱动信号，其中所述低通滤波器直接与所述致动器耦合，并且所述数字功率放大器设置有 一对开关元件和栅极驱动电路，并且ON-OFF基于打印数据控制栅极驱动电路，从而执行驱动信号的输出和停止之一。

公开(公告)号：US09018824B2

公开(公告)日：2015-04-28

申请号：US13371211

申请日：2012-02-10

申请人： Kunio Tabata ,  Noritaka Ide ,  Atsuya Hirabayashi ,  Yasuhiro Ono

发明人： Kunio Tabata ,  Noritaka Ide ,  Atsuya Hirabayashi ,  Yasuhiro Ono

IPC分类号： H01L41/113 ,  H02N2/18

CPC分类号： H02N2/181 ,  H01L41/1136 ,  H02N2/186

摘要： A power-generating apparatus includes: a deformation member that is provided with a first piezoelectric device and deformed while switching a deformation direction; an amount of deformation detection unit that detects an amount of deformation of the deformation member; a pair of electrodes provided on the first piezoelectric device; a switch provided between the pair of electrodes; and a switch control unit that controls the switch to cause short-circuit between the pair of electrodes for a predetermined period when the amount of deformation is equal to or more than a predetermined amount.

摘要翻译： 发电装置包括：变形构件，其设置有第一压电装置，并且在切换变形方向时变形; 变形检测单元，其检测变形构件的变形量; 设置在所述第一压电装置上的一对电极; 设置在所述一对电极之间的开关; 以及开关控制单元，当变形量等于或大于预定量时，控制开关在一对电极之间的预定时间段内短路。

公开(公告)号：US08430466B2

公开(公告)日：2013-04-30

申请号：US12161148

申请日：2007-01-17

申请人： Kunio Tabata ,  Atsushi Oshima ,  Osamu Shinkawa ,  Toshiyuki Suzuki ,  Tomoki Hatano

发明人： Kunio Tabata ,  Atsushi Oshima ,  Osamu Shinkawa ,  Toshiyuki Suzuki ,  Tomoki Hatano

IPC分类号： B41J29/38 ,  B41J2/05

CPC分类号： B41J2/04596 ,  B41J2/04541 ,  B41J2/04548 ,  B41J2/04568 ,  B41J2/04578 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04591 ,  B41J2/04595 ,  H01L41/042

摘要： A head drive apparatus of an inkjet printer includes nozzles and corresponding actuators that eject liquid drops. A drive unit applies a drive signal to the actuators. The drive unit includes a drive waveform generator that generates a drive waveform signal as a reference of a signal to control drive of the actuators. A modulator pulse modulates a drive waveform signal generated by the drive waveform generator. A digital power amplifier amplifies power of a modulated signal subjected to the pulse modulation. A low pass filter smoothes an amplified digital signal subjected to the power amplification by the digital power amplifier and supplying the signal as a drive signal to the actuators. An inverse filter provided in a subsequent stage of the drive waveform generator corrects at least the frequency characteristics of the filter to predetermined frequency characteristics, independently of the number of the actuators to drive.

摘要翻译： 喷墨打印机的头驱动装置包括喷嘴和喷射液滴的相应致动器。 驱动单元向驱动器施加驱动信号。 驱动单元包括驱动波形发生器，其产生用于控制致动器的驱动的信号的参考的驱动波形信号。 调制器脉冲调制由驱动波形发生器产生的驱动波形信号。 数字功率放大器放大经受脉冲调制的调制信号的功率。 低通滤波器对由数字功率放大器进行功率放大的放大数字信号进行平滑处理，并将信号作为驱动信号提供给致动器。 设置在驱动波形发生器的后续级中的反相滤波器至少将滤波器的频率特性校正到预定的频率特性，与要驱动的致动器的数量无关。

公开(公告)号：US20080049054A1

公开(公告)日：2008-02-28

申请号：US11846416

申请日：2007-08-28

申请人： Kunio Tabata ,  Toshiyuki Suzuki ,  Atsushi Oshima

发明人： Kunio Tabata ,  Toshiyuki Suzuki ,  Atsushi Oshima

IPC分类号： G11B9/00

CPC分类号： B41J11/007 ,  B41J3/44 ,  B41J11/42 ,  B65H5/021 ,  B65H2404/285 ,  B65H2511/20 ,  B65H2801/12 ,  B65H2220/01

摘要： A printing apparatus that conveys a printing medium placed on a surface of a conveyor belt, and performs printing to the printing medium by ejecting a liquid from a liquid ejection head, the apparatus includes: a magnetic recording layer that is formed to the conveyor belt as a continuous strip; a magnetic reproduction head that is disposed opposing the magnetic recording layer of the conveyor belt; and a control unit that detects recording details reproduced from the magnetic recording layer by the magnetic reproduction head. In the printing apparatus, the magnetic recording layer is recorded with the recording details about a magnetic pole change of a predetermined pattern, and is partially recorded with the recording details about a magnetic pole change different from the change of the predetermined pattern, and the control unit detects a movement status of the conveyor belt from any of the recording details reproduced from the magnetic recording layer by the magnetic reproduction head specifically about the magnetic pole change of the predetermined pattern, and detects a reference position of the conveyor belt therefrom specifically about the magnetic pole change different from the change of the predetermined pattern.

摘要翻译： 一种印刷装置，其传送位于传送带表面上的打印介质，并通过从液体喷射头喷射液体来对打印介质进行打印，该设备包括：形成在传送带上的磁记录层， 连续条 与传送带的磁记录层相对设置的磁再现头; 以及控制单元，其通过磁性再现头检测从磁记录层再现的记录细节。 在打印装置中，磁记录层记录关于预定图案的磁极变化的记录细节，并且部分地记录关于不同于预定图案的改变的磁极变化的记录细节，并且控制 单元通过磁性再现头从磁记录层再现的任何记录细节中检测传送带的移动状态，特别是关于预定图案的磁极变化，并且检测传送带的基准位置 磁极变化不同于预定图案的变化。

公开(公告)号：US08262180B2

公开(公告)日：2012-09-11

申请号：US11780379

申请日：2007-07-19

申请人： Atsushi Oshima ,  Kunio Tabata

发明人： Atsushi Oshima ,  Kunio Tabata

IPC分类号： B41J29/38

CPC分类号： B41J2/04593 ,  B41J2/04541 ,  B41J2/0455 ,  B41J2/04568 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04596 ,  B41J29/38

摘要： A liquid jet apparatus includes a plurality of nozzles provided to a liquid jet head, an actuator provided corresponding to each of the nozzles, and drive unit that applies a drive signal to the actuator, wherein the drive unit includes drive waveform signal generation unit that generates a drive waveform signal providing a basis of a signal for controlling the operation of the actuator, modulator unit that pulse-modulates the drive waveform signal generated by the drive waveform signal generation unit, a digital power amplifier for power-amplifying the modulated signal, which is pulse-modulated by the modulator unit, a low-pass filter for smoothing the power-amplified and modulated signal power-amplified by the digital power amplifier and supplying the actuator with the power-amplified and modulated signal as the drive signal, and carrier frequency adjusting unit that adjusts a carrier frequency of the pulse modulation by the modulator unit in accordance with the number of the actuators to be driven.

摘要翻译： 一种液体喷射装置，包括设置在液体喷射头上的多个喷嘴，与每个喷嘴对应的致动器，以及向致动器施加驱动信号的驱动单元，其中驱动单元包括产生 提供用于控制致动器的信号的基础的驱动波形信号，对由驱动波形信号生成单元生成的驱动波形信号进行脉冲调制的调制器单元，用于对调制信号进行功率放大的数字功率放大器， 由调制器单元进行脉冲调制，一个低通滤波器，用于对由数字功率放大器进行功率放大和功率放大的功率放大和调制信号进行平滑处理，并为执行器提供功率放大和调制信号作为驱动信号，载波 频率调整单元，其根据所述致动器的数量调整所述调制器单元的脉冲调制的载波频率 rs被驱动。

公开(公告)号：US08240798B2

公开(公告)日：2012-08-14

申请号：US12161201

申请日：2007-01-17

申请人： Atsushi Oshima ,  Kunio Tabata ,  Osamu Shinkawa ,  Toshiyuki Suzuki ,  Tomoki Hatano

发明人： Atsushi Oshima ,  Kunio Tabata ,  Osamu Shinkawa ,  Toshiyuki Suzuki ,  Tomoki Hatano

IPC分类号： B41J29/38 ,  H03F3/38

CPC分类号： B41J2/04596 ,  B41J2/04541 ,  B41J2/04548 ,  B41J2/04568 ,  B41J2/04578 ,  B41J2/0458 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04591 ,  B41J2/04595

摘要： A head drive device of an inkjet printer having a nozzles and corresponding actuators that jet liquid drops. A drive section that generates a drive signal to the actuators. The head drive device includes a drive waveform signal which is used as a reference of a signal to control drive of the actuators. A modulating section modulates a pulse of a drive waveform signal generated by the drive waveform generating system. A low pass filter smoothes a power-amplified modulated signal subjected to the power amplification by the digital power amplifier and supplies the signal as a drive signal to the actuators. A frequency characteristics adjusting section adjusts frequency characteristics of the low pass filter as a function of the number of the actuators.

摘要翻译： 一种喷墨打印机的头驱动装置，其具有喷嘴和喷射液滴的相应致动器。 驱动部分，用于产生驱动信号给致动器。 头驱动装置包括驱动波形信号，该驱动波形信号用作用于控制致动器的驱动的信号的基准。 调制部分调制由驱动波形发生系统产生的驱动波形信号的脉冲。 低通滤波器对由数字功率放大器进行功率放大的功率放大调制信号进行平滑，并将该信号作为驱动信号提供给致动器。 频率特性调整部分根据致动器的数量调节低通滤波器的频率特性。

公开(公告)号：US07758140B2

公开(公告)日：2010-07-20

申请号：US11849582

申请日：2007-09-04

申请人： Atsushi Oshima ,  Kunio Tabata

发明人： Atsushi Oshima ,  Kunio Tabata

IPC分类号： B41J29/38 ,  B41J2/05

CPC分类号： B41J29/38 ,  B41J2/04508 ,  B41J2/04541 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04593 ,  B41J2/04596 ,  B41J3/543

摘要： A printing apparatus uses a liquid jet apparatus including a plurality of nozzles provided to a liquid jet head, an actuator provided corresponding to each of the nozzles, and drive unit that applies a drive signal to the actuator, wherein the drive unit includes drive waveform signal generation unit that generates a drive waveform signal providing a basis of a signal for controlling the actuator, feedback correction unit for feedback-correcting the drive waveform signal generated by the drive waveform signal generation unit, modulator unit for pulse-modulating the corrected drive waveform signal feedback-corrected by the feedback correction unit, a digital power amplifier for power-amplifying the modulated signal, which is pulse-modulated by the modulator unit, and a low-pass filter for smoothing the power-amplified and modulated signal power-amplified by the digital power amplifier and supplying the actuator with the power-amplified and modulated signal as the drive signal, and the feedback correction unit includes a virtual filter having an equivalent frequency characteristic to a frequency characteristic of a filter composed of the low-pass filter and capacitance of the actuator, and operation unit for feedback-correcting the drive waveform signal with a component of the drive waveform signal generated by the drive waveform signal generation unit and passing through the virtual filter.

摘要翻译： 打印装置使用液体喷射装置，其包括设置在液体喷射头上的多个喷嘴，对应于每个喷嘴设置的致动器以及向致动器施加驱动信号的驱动单元，其中驱动单元包括驱动波形信号 产生提供用于控制致动器的信号的基础的驱动波形信号的反馈校正单元，用于对由驱动波形信号生成单元生成的驱动波形信号进行反馈校正的反馈校正单元，用于对校正后的驱动波形信号进行脉冲调制 由反馈校正单元进行反馈校正的功率放大器，用于对由调制器单元进行脉冲调制的调制信号进行功率放大的数字功率放大器和用于对功率放大和调制信号进行功率放大和调制的信号进行平滑化的低通滤波器， 数字功率放大器，并且向致动器提供功率放大和调制信号作为驱动信号，以及f 背景校正单元包括虚拟滤波器，其具有对由低通滤波器构成的滤波器和致动器的电容器的频率特性的等效频率特性，以及用于以驱动波形的分量对驱动波形信号进行反馈校正的操作单元 信号由驱动波形信号生成部生成并通过虚拟滤波器。

公开(公告)号：US20090033698A1

公开(公告)日：2009-02-05

申请号：US12161900

申请日：2007-01-25

申请人： Toshiyuki Suzuki ,  Kunio Tabata ,  Osamu Shinkawa ,  Tomoki Hatano ,  Atsushi Oshima

发明人： Toshiyuki Suzuki ,  Kunio Tabata ,  Osamu Shinkawa ,  Tomoki Hatano ,  Atsushi Oshima

IPC分类号： B41J29/38

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

摘要： With an appropriate signal transmission form, a drive pulse output circuit is mounted to an ink jet head, so that waveform distortion of an actuator drive pulse for jet of ink drops is inhibited or prevented. Modulated signal data in memory is read to output a modulated signal, which is power-amplified by a digital power amplifier. The amplified digital signal is smoothed to be output to an actuator as a drive pulse. As a result, the digital power amplifier having high amplification efficiency efficiently amplifies the power of the modulated signal, thereby eliminating the need to use a cooling unit. The drive pulse output circuit can be mounted to the ink jet heads, thereby shortening the transmission path of an actuator drive pulse, which inhibits or prevents any waveform distortion of the drive pulse. The transmission of the modulated signal data DATA is implemented with a low frequency.

摘要翻译： 通过适当的信号传输形式，驱动脉冲输出电路被安装到喷墨头，从而抑制或防止用于喷墨喷墨的致动器驱动脉冲的波形失真。 读出存储器中的调制信号数据，以输出由数字功率放大器进行功率放大的调制信号。 放大的数字信号被平滑化以作为驱动脉冲输出到致动器。 结果，具有高放大效率的数字功率放大器有效地放大调制信号的功率，从而消除了使用冷却单元的需要。 驱动脉冲输出电路可以安装在喷墨头上，从而缩短致动器驱动脉冲的传输路径，其抑制或防止驱动脉冲的任何波形失真。 以低频率实现调制信号数据DATA的发送。

公开(公告)号：US08287069B2

公开(公告)日：2012-10-16

申请号：US12158591

申请日：2006-12-22

申请人： Kunio Tabata ,  Atsushi Oshima ,  Osamu Shinkawa ,  Toshiyuki Suzuki ,  Tomoki Hatano

发明人： Kunio Tabata ,  Atsushi Oshima ,  Osamu Shinkawa ,  Toshiyuki Suzuki ,  Tomoki Hatano

IPC分类号： B41J29/38

CPC分类号： B41J2/04588 ,  B41J2/04541 ,  B41J2/0455 ,  B41J2/04581 ,  B41J2/04593 ,  B41J2/04596

摘要： A head drive apparatus of an ink jet printer having: a plurality of nozzles for jetting liquid drops that are provided for an ink jet head; a plurality of actuators provided in correspondence to the nozzles; and a drive unit that applies a drive signal to the actuators, wherein the drive unit comprising: a drive waveform generator that generates a drive waveform signal being standard of a signal to control drive of the actuators; a modulator that modulates a pulse of a drive waveform signal generated by the drive waveform generator; a digital power amplifier for amplifying power of a modulated signal subjected to the pulse modulation by the modulator; and a low pass filter for smoothing an amplified digital signal subjected to the power amplification by the digital power amplifier and supplying the signal as a drive signal to the actuators.

摘要翻译： 一种喷墨打印机的头驱动装置，具有：用于喷射为喷墨头设置的液滴的多个喷嘴; 与喷嘴相对应地设置的多个致动器; 以及驱动单元，其向所述致动器施加驱动信号，其中所述驱动单元包括：驱动波形发生器，其产生驱动波形信号，所述驱动波形信号是用于控制所述致动器的驱动的信号的标准; 调制器，其调制由所述驱动波形发生器产生的驱动波形信号的脉冲; 数字功率放大器，用于放大经调制器进行脉冲调制的调制信号的功率; 以及低通滤波器，用于平滑经数字功率放大器进行功率放大的放大数字信号，并将信号作为驱动信号提供给致动器。

公开(公告)号：US08201905B2

公开(公告)日：2012-06-19

申请号：US12161900

申请日：2007-01-25

申请人： Toshiyuki Suzuki ,  Kunio Tabata ,  Osamu Shinkawa ,  Tomoki Hatano ,  Atsushi Oshima

发明人： Toshiyuki Suzuki ,  Kunio Tabata ,  Osamu Shinkawa ,  Tomoki Hatano ,  Atsushi Oshima

IPC分类号： B41J29/38

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

摘要： With an appropriate signal transmission form, a drive pulse output circuit is mounted to an ink jet head, so that waveform distortion of an actuator drive pulse for jet of ink drops is inhibited or prevented. Modulated signal data in memory is read to output a modulated signal, which is power-amplified by a digital power amplifier. The amplified digital signal is smoothed to be output to an actuator as a drive pulse. As a result, the digital power amplifier having high amplification efficiency efficiently amplifies the power of the modulated signal, thereby eliminating the need to use a cooling unit. The drive pulse output circuit can be mounted to the ink jet heads, thereby shortening the transmission path of an actuator drive pulse, which inhibits or prevents any waveform distortion of the drive pulse. The transmission of the modulated signal data DATA is implemented with a low frequency.

摘要翻译： 通过适当的信号传输形式，驱动脉冲输出电路被安装到喷墨头，从而抑制或防止用于喷墨喷墨的致动器驱动脉冲的波形失真。 读出存储器中的调制信号数据，以输出由数字功率放大器进行功率放大的调制信号。 放大的数字信号被平滑化以作为驱动脉冲输出到致动器。 结果，具有高放大效率的数字功率放大器有效地放大调制信号的功率，从而消除了使用冷却单元的需要。 驱动脉冲输出电路可以安装在喷墨头上，从而缩短致动器驱动脉冲的传输路径，其抑制或防止驱动脉冲的任何波形失真。 以低频率实现调制信号数据DATA的发送。