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公开(公告)号：US08493578B2
公开(公告)日：2013-07-23
申请号：US12998063
申请日：2009-09-15
Applicant: Naruhiro Masui
Inventor： Naruhiro Masui
CPC classification number: H04N1/053 , G02B26/127 , G03G15/043 , G06K15/1219 , H04N1/1135 , H04N1/12 , H04N2201/0082 , H04N2201/02439 , H04N2201/0471 , H04N2201/04732 , H04N2201/04744 , H04N2201/04772 , H04N2201/04784 , H04N2201/04786 , H04N2201/04794
Abstract: A pixel clock generator includes a frequency divider 4 that generates a pixel clock PCLK based on a high frequency clock VCLK, a comparator 5 that calculates an error Lerr in the time obtained by integrating a cycle of the pixel clock PCLK for a target number RefN from a time when synchronization signals SPSYNC and EPSYNC are detected, a filter 6, and a frequency calculating unit 7 that sets a frequency dividing value M of the frequency divider 4. The filter 6 and the frequency calculating unit 7 calculate an average of a frequency of the pixel clock PCLK based on the error Lerr, determine a reference error value from the error Lerr in N-cycles, calculate offset values of the frequencies of N pieces of pixel clocks PCLK based on a difference between the reference error value and the error Lerr, and calculate the frequency dividing value M based on a result obtained by adding the circularly selected offset values and the average of the frequency of the pixel clock PCLK.
Abstract translation: 像素时钟发生器包括：分频器4，其基于高频时钟VCLK产生像素时钟PCLK;比较器5，其计算通过将像素时钟PCLK的周期与目标编号RefN的周期进行积分而获得的时间中的误差Lerr， 检测同步信号SPSYNC和EPSYNC的时间，滤波器6和设定分频器4的分频值M的频率计算单元7.滤波器6和频率计算单元7计算频率 基于误差Lerr的像素时钟PCLK基于误差Lerr在N个周期中确定参考误差值，基于参考误差值和误差Lerr之间的差来计算N个像素时钟PCLK的频率的偏移值 ，并且基于通过将循环选择的偏移值和像素时钟PCLK的频率的平均值相加而获得的结果来计算分频值M.
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公开(公告)号：US07200091B2
公开(公告)日：2007-04-03
申请号：US10274193
申请日：2002-10-21
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。
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公开(公告)号：US20070030785A1
公开(公告)日：2007-02-08
申请号：US11581150
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.
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14.发明申请Information recording method, information recording device and recording medium contaning a program 有权信息记录方法，信息记录装置以及包含程序的记录介质公开(公告)号：US20060245336A1
公开(公告)日：2006-11-02
申请号：US10541591
申请日：2004-10-15
Applicant: Kenya Yokoi , Naruhiro Masui
Inventor： Kenya Yokoi , Naruhiro Masui
IPC: G11B7/00
CPC classification number: G11B7/1267 , G11B7/0062 , G11B7/00736
Abstract: [Problem to be Solved]Accurate recording is achieved by obtaining each optimum pulse width and pulse edge position in a recording method that performs recording according to the rules of recording waveform using different pulse widths and pulse edge positions for individual data length sets with respect to the data length sets having the different relationship between the number of pulses and the data length. [Means for Solving the Problem]The first trial write process obtains an optimum recording power of a test pattern (S1 through S3) even with respect to data having different rules for the recording waveforms corresponding n type data length sets, and the second trial write process using this optimum recording power obtains optimum pulse width or optimum pulse edge position separately for each data length set (S4 through S6). Based on the optimum recording power and optimum recording waveform obtained by these trial write processes, recording operation is performed so as to form all the data lengths with satisfactory accuracy, thereby making it possible to obtain a proper reproduced signal.
Abstract translation: [待解决的问题]通过在记录方法中获得每个最佳脉冲宽度和脉冲边缘位置来实现准确的记录，所述记录方法根据记录波形的规则，使用不同的脉冲宽度和脉冲边缘位置对于各个数据长度集相对于 数据长度集具有脉冲数与数据长度之间的不同关系。 [解决问题的手段]即使对于与n种数据长度集合对应的记录波形的规则不同的数据，第一试写法也能够获得测试图案的最佳记录功率（S 1至S 3），第二试写 使用该最佳记录功率的试写步骤分别为每个数据长度集合（S 4至S 6）分别获得最佳脉冲宽度或最佳脉冲边沿位置。 基于通过这些试写法处理获得的最佳记录功率和最佳记录波形，执行记录操作以便以令人满意的精度形成所有数据长度，从而可以获得适当的再现信号。
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公开(公告)号：US20050135527A1
公开(公告)日：2005-06-23
申请号：US11002885
申请日：2004-12-03
Applicant: Naruhiro Masui , Hidetoshi Ema
Inventor： Naruhiro Masui , Hidetoshi Ema
CPC classification number: H04L7/0338
Abstract: A data recovery method includes the steps of: (a) oversampling data that have been transmitted serially in sync with a first clock of frequency f1, using a multiphase clock generated by shifting a phase of a second clock of frequency f2 at a prescribed interval, the second frequency f2 of the multiphase clock being at or below the first frequency f1; (b) extracting f1/f2 bits on average from the oversampled data; and (c) recovering the extracted bits to restore the received data.
Abstract translation: 数据恢复方法包括以下步骤：（a）使用通过将频率f 2的第二时钟的相位移位到规定的频率而产生的多相时钟，对与频率f 1的第一时钟同步地串行发送的数据进行过采样 多相时钟的第二频率f 2处于或低于第一频率f 1; （b）从过采样数据平均提取f 1 / f 2比特; 和（c）恢复提取的比特以恢复所接收的数据。
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Patent Agency Ranking
公开(公告)号：US20130064580A1
公开(公告)日：2013-03-14
申请号：US13609737
申请日：2012-09-11
Applicant: Norikazu IGARASHI , Naruhiro Masui
Inventor： Norikazu IGARASHI , Naruhiro Masui
IPC: 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。
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公开(公告)号：US20110164273A1
公开(公告)日：2011-07-07
申请号：US12998063
申请日：2009-09-15
Applicant: Naruhiro Masui
Inventor： Naruhiro Masui
IPC: G06K15/00
CPC classification number: H04N1/053 , G02B26/127 , G03G15/043 , G06K15/1219 , H04N1/1135 , H04N1/12 , H04N2201/0082 , H04N2201/02439 , H04N2201/0471 , H04N2201/04732 , H04N2201/04744 , H04N2201/04772 , H04N2201/04784 , H04N2201/04786 , H04N2201/04794
Abstract: A pixel clock generator includes a frequency divider 4 that generates a pixel clock PCLK based on a high frequency clock VCLK, a comparator 5 that calculates an error Lerr in the time obtained by integrating a cycle of the pixel clock PCLK for a target number RefN from a time when synchronization signals SPSYNC and EPSYNC are detected, a filter 6, and a frequency calculating unit 7 that sets a frequency dividing value M of the frequency divider 4. The filter 6 and the frequency calculating unit 7 calculate an average of a frequency of the pixel clock PCLK based on the error Lerr, determine a reference error value from the error Lerr in N-cycles, calculate offset values of the frequencies of N pieces of pixel clocks PCLK based on a difference between the reference error value and the error Lerr, and calculate the frequency dividing value M based on a result obtained by adding the circularly selected offset values and the average of the frequency of the pixel clock PCLK.
Abstract translation: 像素时钟发生器包括：分频器4，其基于高频时钟VCLK产生像素时钟PCLK;比较器5，其计算通过将像素时钟PCLK的周期与目标编号RefN的周期进行积分而获得的时间中的误差Lerr， 检测同步信号SPSYNC和EPSYNC的时间，滤波器6和设定分频器4的分频值M的频率计算单元7.滤波器6和频率计算单元7计算频率 基于误差Lerr的像素时钟PCLK基于误差Lerr在N个周期中确定参考误差值，基于参考误差值和误差Lerr之间的差来计算N个像素时钟PCLK的频率的偏移值 ，并且基于通过将循环选择的偏移值和像素时钟PCLK的频率的平均值相加而获得的结果来计算分频值M.
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公开(公告)号：US07656422B2
公开(公告)日：2010-02-02
申请号：US11681561
申请日：2007-03-02
Applicant: Dan Ozasa , Naruhiro Masui
Inventor： Dan Ozasa , Naruhiro Masui
CPC classification number: H04N1/506
Abstract: A disclosed device for generating a pulse-width modulated signal according to image data and based on a pixel clock signal includes a pixel clock generating unit configured to generate the pixel clock signal and a modulated data generating unit configured to generate the pulse-width modulated signal. The pixel clock generating unit includes a multi-phase clock signal generating unit, a comparing unit, a frequency calculation unit, a counting unit, and a pixel clock signal output unit. The modulated data generating unit includes a data converting unit, an edge time calculation unit, and a pulse-width modulated signal output unit.
Abstract translation: 根据图像数据并基于像素时钟信号生成脉宽调制信号的装置包括：像素时钟生成单元，被配置为生成像素时钟信号;调制数据生成单元，被配置为生成脉宽调制信号 。 像素时钟生成单元包括多相时钟信号生成单元，比较单元，频率计算单元，计数单元和像素时钟信号输出单元。 调制数据生成单元包括数据转换单元，边沿时间计算单元和脉冲宽度调制信号输出单元。
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公开(公告)号：US07423940B2
公开(公告)日：2008-09-09
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而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。
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公开(公告)号：US07142486B2
公开(公告)日：2006-11-28
申请号：US10109696
申请日：2002-04-01
Applicant: Naruhiro Masui , Hidetoshi Ema
Inventor： Naruhiro Masui , Hidetoshi Ema
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.
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