公开(公告)号：US09387671B2

公开(公告)日：2016-07-12

申请号：US14695493

申请日：2015-04-24

Applicant: Naruhiro Masui

Inventor： Naruhiro Masui

IPC: B41J29/38 ,  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。

公开(公告)号：US07746971B2

公开(公告)日：2010-06-29

申请号：US11376064

申请日：2006-03-16

Applicant: Naruhiro Masui ,  Hidetoshi Ema

Inventor： Naruhiro Masui ,  Hidetoshi Ema

IPC: H04L7/00

CPC classification number: H03L7/0995 ,  H04L7/0337 ,  H04L25/068

Abstract: Serially transferred data is over sampled with a multiphase clock signal generated as a result of shifting a predetermined frequency clock signal by a predetermined phase each, to obtain over sampling data; generating clock patterns, having mutually different phase states according to a data phase state of the over sampling data. A first phase pattern generated from the over sampling data is compared with a second phase pattern generated from the clock pattern, and the number of bits to extract from the over sampling data is controlled. A phase error of the over sampling data is detected based on the first phase pattern and the second phase pattern. Bits to extract from the over sampling data is selected to restore the data based on the phase state of the clock pattern and the phase error.

Abstract translation: 作为通过以预定的相位移动预定频率时钟信号而产生的多相时钟信号，对串行数据进行过采样，以获得过采样数据; 产生根据过采样数据的数据相位状态具有相互不同的相位状态的时钟模式。 将从过采样数据生成的第一相位模式与从时钟模式生成的第二相位模式进行比较，并控制从过采样数据中提取的位数。 基于第一相位图案和第二相位图案检测过采样数据的相位误差。 选择从过采样数据中提取的位，以基于时钟模式的相位状态和相位误差恢复数据。

公开(公告)号：US07518969B2

公开(公告)日：2009-04-14

申请号：US11581110

申请日：2006-10-16

Applicant: Naruhiro Masui ,  Hidetoshi Ema

Inventor： Naruhiro Masui ,  Hidetoshi Ema

IPC: G11B20/10

CPC classification number: G11B7/1263 ,  G11B7/0062 ,  G11B11/1053

Abstract: A light source driving unit includes a modulating signal generating section generating modulating signals based on driving waveform generating information of a light source, a current source selecting section selecting one or more currents output from current sources based on the modulating signals, a light source driving section generating a current having multi-levels based on the one or more currents selected and supplying the generated current to the light source to drive the light source so that light in multi-levels is generated from the light source, and a cancelling section adding a signal error amount which cancels differences in amounts of signal delays generated between the modulating signal generating section and the light source driving section at a stage prior to the current source selecting section.

Abstract translation: 光源驱动单元包括：调制信号产生部分，基于光源的驱动波形产生信息产生调制信号;电流源选择部分，根据调制信号选择从电流源输出的一个或多个电流;光源驱动部分 基于所选择的一个或多个电流产生具有多电平的电流，并将所产生的电流提供给光源以驱动光源，使得从光源产生多电平的光;以及消除部分， 误差量，其消除在当前源选择部分之前的阶段在调制信号产生部分和光源驱动部分之间产生的信号延迟量的差异。

公开(公告)号：US07480230B2

公开(公告)日：2009-01-20

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.

Abstract translation: 调制光源以使其发光的光源驱动器包括：叠加电流产生部分，其产生大致对应于与光并行发生的电容所需的充电/放电电流的叠加电流 源于光源的驱动电流的波形的上升部分和衰减部分中的至少一个附近的预定时间段; 以及加法/减法部分，其从驱动电流增加或减去由叠加电流产生部分产生的叠加电流。

公开(公告)号：US07301870B2

公开(公告)日：2007-11-27

申请号：US10937285

申请日：2004-09-10

Applicant: Naruhiro Masui

Inventor： Naruhiro Masui

IPC: G11B7/00

CPC classification number: G11B7/1267 ,  G11B7/0045 ,  G11B7/0062

Abstract: An information recording method where different optimum recording power levels are determined for different mark lengths.At a first trial writing process, first predetermined test data, from which a specific pattern, e.g., 3T is removed, are written with recording power levels being shifted, and a first optimum recording power level is determined based on a reproduction signal of the recorded first test data. Then, at a second trial writing process, second predetermined test data that are constituted by 3T marks are written with the recording power level for the 3T marks being shifted, and with the recording power level for marks other than the 3T marks being set at the first optimum recording level, and a second optimum recording power level for the 3T marks is determined based on a reproduction signal of the recorded second test data.

Abstract translation: 一种信息记录方法，其针对不同的标记长度确定不同的最佳记录功率电平。 在第一次试用写入处理中，以记录功率电平被移位的方式写入特定模式（例如，3T被去除）的第一预定测试数据，并且基于所记录的再现信号确定第一最佳记录功率电平 第一个测试数据。 然后，在第二试写处理中，由3T标记构成的第二预定测试数据被写入具有3T标记被移位的记录功率电平，并且除了3T标记之外的标记的记录功率电平被设置在 基于记录的第二测试数据的再现信号来确定第一最佳记录级别和用于3T标记的第二最佳记录功率电平。

公开(公告)号：US20070070834A1

公开(公告)日：2007-03-29

申请号：US11508293

申请日：2006-08-23

Applicant: Naruhiro Masui ,  Hidetoshi Ema

Inventor： Naruhiro Masui ,  Hidetoshi Ema

IPC: G11B7/00

CPC classification number: G11B7/09 ,  G11B7/094 ,  G11B7/0941

Abstract: A signal processing apparatus is provided with a converter for converting at least one analog light detection signal into a digital light detection signal, and a signal generator for generating at least one servo error signal by subjecting the digital light detection signal to a predetermined operation process. The signal generator has a function of modifying contents of the operation process.

Abstract translation: 信号处理装置设置有用于将至少一个模拟光检测信号转换为数字光检测信号的转换器，以及用于通过使数字光检测信号经受预定的操作处理来产生至少一个伺服误差信号的信号发生器。 信号发生器具有修改操作过程的内容的功能。

公开(公告)号：US20070030784A1

公开(公告)日：2007-02-08

申请号：US11581110

申请日：2006-10-16

Applicant: Naruhiro Masui ,  Hidetoshi Ema

Inventor： Naruhiro Masui ,  Hidetoshi Ema

IPC: G11B20/10

CPC classification number: G11B7/1263 ,  G11B7/0062 ,  G11B11/1053

Abstract: A light source driving unit includes a modulating signal generating section generating modulating signals based on driving waveform generating information of a light source, a current source selecting section selecting one or more currents output from current sources based on the modulating signals, a light source driving section generating a current having multi-levels based on the one or more currents selected and supplying the generated current to the light source to drive the light source so that light in multi-levels is generated from the light source, and a cancelling section adding a signal error amount which cancels differences in amounts of signal delays generated between the modulating signal generating section and the light source driving section at a stage prior to the current source selecting section.

公开(公告)号：US20060007841A1

公开(公告)日：2006-01-12

申请号：US11213829

申请日：2005-08-30

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.

公开(公告)号：US20050041548A1

公开(公告)日：2005-02-24

申请号：US10938945

申请日：2004-09-13

Applicant: Naruhiro Masui

Inventor： Naruhiro Masui

IPC: G11B7/0045 ,  G11B7/006 ,  G11B7/125 ,  G11B7/00 ,  G11B5/09

CPC classification number: G11B7/126 ,  G11B7/0062 ,  G11B7/1267

Abstract: In a method of transforming a recording power level into multi-levels by using an extra recording power level, the optimum value of each recording power level is obtained, thereby achieving recording with good accuracy. By including a first test writing step (S1-S3) of performing test writing of predetermined first test data while varying the recording power in stages, and calculating an optimum recording power from the reproduction signal, and a second test writing step (S4-S6) of setting the recording power to the calculated optimum recording power and performing test writing of predetermined second test data while varying in stages the extra recording power applied in a part of a time period in which the optimum recording power is applied, and calculating an optimum extra recording power from the reproduction signal, the recording power and the extra recording power are separately calculated by test writing, and with which information is recorded. Hence, it is possible to form the shape of a recording mark and the mark position with good accuracy. Thus, recording can be performed with good accuracy.

Abstract translation: 在通过使用额外的记录功率电平将记录功率电平变换为多电平的方法中，获得每个记录功率电平的最佳值，从而以高精度实现记录。 通过包括在分级地改变记录功率的同时执行预定的第一测试数据的测试写入并根据再现信号计算最佳记录功率的第一测试写入步骤（S1-S3）和第二测试写入步骤（S4-S6 ），将记录功率设定为计算出的最佳记录功率，并且在施加了最佳记录功率的时间段的一部分中分级施加的额外记录功率的同时对预定的第二测试数据进行测试写入，并且计算最佳记录功率 来自再现信号的额外记录功率，记录功率和附加记录功率通过测试写入分别计算，并记录有哪些信息。 因此，可以以高精度形成记录标记的形状和标记位置。 因此，可以以高精度执行记录。

公开(公告)号：US08862002B2

公开(公告)日：2014-10-14

申请号：US13609737

申请日：2012-09-11

Applicant: Norikazu Igarashi ,  Naruhiro Masui

Inventor： Norikazu Igarashi ,  Naruhiro Masui

IPC: G03G15/00 ,  G03G15/01

CPC classification number: G03G15/0189 ,  G03G15/5058 ,  G03G2215/0161

Abstract: An image forming apparatus reduces superimposing misalignment due to skew difference and registration difference and superimposing misalignment of visible image due to periodic position error generated on a plurality of latent image carriers respectively by correcting image information. A controller of the image forming apparatus has a deviation amount storing unit store data of magnification error in the sub-scanning direction e, executes rotation posture determining process that sets writing rotation posture as rotation angle posture at the time of starting writing latent image on photoconductors for Y, M, C, and K respectively, and has an image data correcting unit correct the image information based on the determined writing rotation posture and various error data (including magnification error in the sub-scanning direction e).

Abstract translation: 图像形成装置通过校正图像信息，分别减少由于偏差和配准差引起的叠加不对准，并且由于分别在多个潜像载体上产生的周期性位置误差而叠加可见图像的未对准。 图像形成装置的控制器具有偏离量存储单元存储副扫描方向e的放大误差数据，执行旋转姿势确定处理，其将写入旋转姿势设定为开始将潜像写入到感光体上的旋转角度姿势 对于Y，M，C和K分别具有图像数据校正单元，该图像数据校正单元基于确定的写入旋转姿势和各种错误数据（包括副扫描方向e的倍率误差）来校正图像信息。