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31.发明申请公开(公告)号：US20070036059A1
公开(公告)日：2007-02-15
申请号：US11581483
申请日：2006-10-17
Applicant: Naruhiro Masui , Hidetoshi Ema
Inventor： Naruhiro Masui , Hidetoshi Ema
IPC: G11B7/00
CPC classification number: G11B7/126 , G11B7/0062 , G11B7/1263 , G11B11/1053 , H01S5/0427 , H01S5/0683
Abstract: A light source drive which modulates a light source so as to cause the same to emit a light, includes: a superposition current generation part which generates a superposition current approximately corresponding to a charging/discharging current needed for a capacitance occurring in parallel to the light source for a predetermined time period near at least one of a rising-up part and a decaying-down part of a waveform of a drive current for the light source; and an addition/subtraction part which adds to or subtracts from the drive current the superposition current generated by the superposition current generation part.
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公开(公告)号：US6118798A
公开(公告)日：2000-09-12
申请号：US272197
申请日：1999-03-18
Applicant: Hidetoshi Ema , Masaaki Ishida , Naruhiro Masui
Inventor： Hidetoshi Ema , Masaaki Ishida , Naruhiro Masui
IPC: H01S5/042 , H01S5/0683 , H01S3/10
CPC classification number: H01S5/06835 , H01S5/042 , H01S5/0428
Abstract: A pulse width modulation and intensity modulation signal generating unit, based on input data, performs pulse width modulation and intensity modulation and generates a light emission instruction signal. An error amplifier forms a negative feedback loop together with a semiconductor laser and a light reception device which monitors light output of the semiconductor laser, the error amplifier controlling forward current of the semiconductor laser so that a light reception signal proportional to the light output of the semiconductor laser is equal to the light emission instruction signal. A current driving unit causes a driving current, according to the light emission instruction signal, to flow through the semiconductor laser as the forward current thereof, the driving current being generated so as to control driving of the semiconductor laser with a current of the difference or sum with the control current of the negative feedback loop. The pulse width modulation nd intensity modulation signal generating unit, the error amplifier and the current driving unit are formed as one chip of an integrated circuit.
Abstract translation: 脉冲宽度调制和强度调制信号产生单元基于输入数据进行脉冲宽度调制和强度调制，并产生发光指示信号。 误差放大器与半导体激光器和监视半导体激光器的光输出的光接收装置一起形成负反馈回路，误差放大器控制半导体激光器的正向电流，使得与光输出成比例的光接收信号 半导体激光器等于发光指示信号。 电流驱动单元使得根据发光指示信号的驱动电流作为其正向电流流过半导体激光器，产生驱动电流以便以不同的电流控制半导体激光器的驱动，或者 与负反馈回路的控制电流相加。 脉冲宽度调制和强度调制信号发生单元，误差放大器和电流驱动单元形成为集成电路的一个芯片。
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公开(公告)号：US5946334A
公开(公告)日：1999-08-31
申请号：US825300
申请日：1997-03-27
Applicant: Hidetoshi Ema , Masaaki Ishida , Naruhiro Masui
Inventor： Hidetoshi Ema , Masaaki Ishida , Naruhiro Masui
IPC: H01S5/042 , H01S5/0683 , H01S3/10
CPC classification number: H01S5/06835 , H01S5/042 , H01S5/0428
Abstract: A pulse width modulation and intensity modulation signal generating unit, based on input data, performs pulse width modulation and intensity modulation and generates a light emission instruction signal. An error amplifier forms a negative feedback loop together with a semiconductor laser and a light reception device which monitors light output of the semiconductor laser, the error amplifier controlling forward current of the semiconductor laser so that a light reception signal proportional to the light output of the semiconductor laser is equal to the light emission instruction signal. A current driving unit causes a driving current, according to the light emission instruction signal, to flow through the semiconductor laser as the forward current thereof, the driving current being generated so as to control driving of the semiconductor laser with a current of the difference or sum with the control current of the negative feedback loop. The pulse width modulation and intensity modulation signal generating unit, the error amplifier and the current driving unit are formed as one chip of an integrated circuit.
Abstract translation: 脉冲宽度调制和强度调制信号产生单元基于输入数据进行脉冲宽度调制和强度调制，并产生发光指示信号。 误差放大器与半导体激光器和监视半导体激光器的光输出的光接收装置一起形成负反馈回路，误差放大器控制半导体激光器的正向电流，使得与光输出成比例的光接收信号 半导体激光器等于发光指示信号。 电流驱动单元使得根据发光指示信号的驱动电流作为其正向电流流过半导体激光器，产生驱动电流，以便以不同的电流控制半导体激光器的驱动，或 与负反馈回路的控制电流相加。 脉冲宽度调制和强度调制信号产生单元，误差放大器和电流驱动单元形成为集成电路的一个芯片。
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公开(公告)号：US10166766B2
公开(公告)日：2019-01-01
申请号：US15448046
申请日：2017-03-02
Applicant: Naruhiro Masui
Inventor： Naruhiro Masui
Abstract: A head driving device drives a liquid ejection head. The liquid ejection head includes a plurality of nozzles and a plurality of pressure generating devices provided respectively corresponding to the nozzles. The head driving device includes a driving-waveform correcting unit configured to correct driving waveform data that defines ejection characteristics of liquid to be ejected from the nozzle based on interference patterns expressing variations in the ejection characteristics caused by an interference occurring in the nozzle.
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公开(公告)号：US20170253033A1
公开(公告)日：2017-09-07
申请号：US15448046
申请日：2017-03-02
Applicant: Naruhiro MASUI
Inventor： Naruhiro MASUI
IPC: B41J2/045
CPC classification number: B41J2/04588 , B41J2/04525 , B41J2/04536 , B41J2/04541 , B41J2/04581 , B41J2/04586 , B41J2/0459 , B41J2/04591 , B41J2/04593
Abstract: A head driving device drives a liquid ejection head. The liquid ejection head includes a plurality of nozzles and a plurality of pressure generating devices provided respectively corresponding to the nozzles. The head driving device includes a driving-waveform correcting unit configured to correct driving waveform data that defines ejection characteristics of liquid to be ejected from the nozzle based on interference patterns expressing variations in the ejection characteristics caused by an interference occurring in the nozzle.
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Patent Agency Ranking
36.发明申请公开(公告)号：US20150328886A1
公开(公告)日：2015-11-19
申请号：US14695493
申请日：2015-04-24
Applicant: Naruhiro MASUI
Inventor： Naruhiro MASUI
IPC: B41J2/045
CPC classification number: B41J2/04581 , B41J2/04506 , B41J2/04563 , B41J2/04586 , B41J2/04588 , B41J2/04593 , B41J2/04596
Abstract: The invention is concerning a head driving device that drives a recording head including a plurality of nozzles and a plurality of pressure generating elements corresponding to the respective nozzles. The head driving device comprises: a plurality of drive waveform generating units corresponding to the respective pressure generating elements, wherein the drive waveform generating units drive the respective pressure generating elements on the basis of pieces of drive waveform information that are set for the respective nozzles so as to approximately equalize ejection characteristics of droplets ejected from the nozzles.
Abstract translation: 本发明涉及一种驱动包括多个喷嘴的记录头和对应于各个喷嘴的多个压力产生元件的头驱动装置。 头驱动装置包括：多个对应于各个压力产生元件的驱动波形产生单元，其中驱动波形生成单元基于为各个喷嘴设定的多条驱动波形信息驱动各压力发生元件， 大致均衡从喷嘴喷出的液滴的喷射特性。
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公开(公告)号：US09030517B2
公开(公告)日：2015-05-12
申请号：US13042006
申请日：2011-03-07
Applicant: Naruhiro Masui
Inventor： Naruhiro Masui
CPC classification number: H04N1/053 , G02B26/123 , G02B26/127 , G03G15/04072 , G06K15/1219 , H04N1/1135 , H04N1/506 , H04N2201/0471 , H04N2201/04729 , H04N2201/04734 , H04N2201/04744 , H04N2201/04768 , H04N2201/04772 , H04N2201/04774 , H04N2201/04775 , H04N2201/04784 , H04N2201/04789 , H04N2201/04793 , H04N2201/04794 , H04N2201/04798
Abstract: A pixel clock generating device includes a time interval detection unit detecting a time interval between a first signal and a second signal in each of cyclically repeating N (≧2) time periods; a comparing unit cyclically selecting a target value from N target values corresponding to the N time periods and outputting an error indicating a difference between the detected time interval and the selected target value for each of the N time periods; a frequency calculation unit correcting a frequency of the pixel clock signal based on the error and cyclically generating a frequency specification signal indicating the corrected frequency for each of the N time periods; a high-frequency clock generating unit generating a high-frequency clock signal; and a pixel clock generating unit generating a pixel clock signal based on the frequency specification signal and the high-frequency clock signal.
Abstract translation: 像素时钟发生装置包括时间间隔检测单元，其检测周期性地重复的N（≥2）个时间段中的每一个中的第一信号和第二信号之间的时间间隔; 比较单元，从与N个时段对应的N个目标值周期性地选择目标值，并且输出针对所述N个时间段中的每一个的所述检测到的时间间隔与所选择的目标值之间的差异的误差; 频率计算单元，基于所述误差校正所述像素时钟信号的频率，并且循环地生成指示所述N个时间段中的每一个的校正频率的频率指定信号; 产生高频时钟信号的高频时钟发生单元; 以及像素时钟生成单元，其基于频率指定信号和高频时钟信号生成像素时钟信号。
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38.发明授权公开(公告)号：US09020406B2
公开(公告)日：2015-04-28
申请号：US14101504
申请日：2013-12-10
Applicant: Norikazu Igarashi , Naruhiro Masui
Inventor： Norikazu Igarashi , Naruhiro Masui
CPC classification number: G03G15/55 , G03G15/5058 , G03G2215/0129 , G03G2215/0161
Abstract: An image forming apparatus includes a color registration error amount calculation unit that calculates a color registration error amount from a first test pattern; a correction information obtaining unit that obtains a correction information for correcting an image on a back surface based on previously obtained contraction information of a printing paper after printing an image on a front surface when printing on both surfaces; and an image data correction unit that corrects the image on the back surface based on the color registration error amount calculated by the color registration error amount and the correction information obtained by the correction information obtaining unit.
Abstract translation: 一种图像形成装置，包括从第一测试图案计算颜色配准误差量的颜色配准误差量计算单元; 校正信息获取单元，当在两个表面上打印时，在基于先前获得的打印纸的收缩信息在前表面上打印图像之后，获得用于校正背面上的图像的校正信息; 以及图像数据校正单元，其基于由颜色配准误差量计算的颜色配准误差量和由校正信息获取单元获得的校正信息来校正背面上的图像。
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39.发明授权Image forming apparatus and image forming method that corrects test pattern data and image data based on color displacement amount 有权基于颜色位移量校正测试图案数据和图像数据的图像形成设备和图像形成方法公开(公告)号：US08867973B2
公开(公告)日：2014-10-21
申请号：US13818726
申请日：2011-09-02
Applicant: Naruhiro Masui
Inventor： Naruhiro Masui
CPC classification number: G03G15/0131 , G03G15/0189 , G03G15/5058 , G03G2215/0161 , H04N1/506
Abstract: An image forming apparatus includes an intermediate transfer body; a generating unit generating test pattern data; a storage unit storing a color displacement amount; a correcting unit correcting the test pattern data and image data based on the color displacement amount currently stored in the storage unit; a forming unit forming a test pattern based on the test pattern data corrected by the correcting unit on the intermediate transfer body at predetermined intervals, and forming an image based on the image data corrected by the correcting unit on the intermediate transfer body; a detecting unit detecting the test pattern formed on the intermediate transfer body; an updating unit determining an amount of change of the color displacement amount from a result of detection by the detecting unit, and updating the color displacement amount stored in the storage unit by using the amount of change of the color displacement amount.
Abstract translation: 图像形成装置包括中间转印体; 产生测试图案数据的生成单元; 存储颜色位移量的存储单元; 校正单元，基于当前存储在存储单元中的颜色位移量来校正测试图案数据和图像数据; 形成单元，其基于由所述校正单元在所述中间转印体上以预定间隔校正的测试图案数据形成测试图案，并且基于由所述校正单元校正的图像数据在所述中间转印体上形成图像; 检测单元，检测形成在中间转印体上的测试图案; 更新单元，根据检测单元的检测结果确定颜色位移量的变化量，并且通过使用颜色位移量的变化量来更新存储在存储单元中的颜色位移量。
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40.发明申请公开(公告)号：US20140169843A1
公开(公告)日：2014-06-19
申请号：US14101504
申请日：2013-12-10
Applicant: Norikazu IGARASHI , Naruhiro MASUI
Inventor： Norikazu IGARASHI , Naruhiro MASUI
IPC: G03G15/01
CPC classification number: G03G15/55 , G03G15/5058 , G03G2215/0129 , G03G2215/0161
Abstract: An image forming apparatus includes a color registration error amount calculation unit that calculates a color registration error amount from a first test pattern; a correction information obtaining unit that obtains a correction information for correcting an image on a back surface based on previously obtained contraction information of a printing paper after printing an image on a front surface when printing on both surfaces; and an image data correction unit that corrects the image on the back surface based on the color registration error amount calculated by the color registration error amount and the correction information obtained by the correction information obtaining unit.
Abstract translation: 一种图像形成装置，包括从第一测试图案计算颜色配准误差量的颜色配准误差量计算单元; 校正信息获取单元，当在两个表面上打印时，在基于先前获得的打印纸的收缩信息在前表面上打印图像之后，获得用于校正背面上的图像的校正信息; 以及图像数据校正单元，其基于由颜色配准误差量计算的颜色配准误差量和由校正信息获取单元获得的校正信息来校正背面上的图像。
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