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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
申请人： Naruhiro Masui , Hidetoshi Ema
发明人： Naruhiro Masui , Hidetoshi Ema
IPC分类号： G11B20/10
CPC分类号： G11B7/1263 , G11B7/0062 , G11B11/1053
摘要： 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.
摘要翻译： 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
申请人： Naruhiro Masui , Hidetoshi Ema
发明人： Naruhiro Masui , Hidetoshi Ema
IPC分类号： G11B20/10
CPC分类号： G11B7/1263 , G11B7/0062 , G11B11/1053
摘要： 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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公开(公告)号：US20050135527A1
公开(公告)日：2005-06-23
申请号：US11002885
申请日：2004-12-03
申请人： Naruhiro Masui , Hidetoshi Ema
发明人： Naruhiro Masui , Hidetoshi Ema
CPC分类号： H04L7/0338
摘要： 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.
摘要翻译： 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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公开(公告)号：US07423940B2
公开(公告)日：2008-09-09
申请号：US11508293
申请日：2006-08-23
申请人： Naruhiro Masui , Hidetoshi Ema
发明人： Naruhiro Masui , Hidetoshi Ema
IPC分类号： G11B7/00
CPC分类号： G11B7/09 , G11B7/094 , G11B7/0941
摘要： 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.
摘要翻译： 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
申请人： Naruhiro Masui , Hidetoshi Ema
发明人： Naruhiro Masui , Hidetoshi Ema
CPC分类号： G11B7/09 , G11B7/094 , G11B7/0941
摘要： 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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6.发明申请Data recovery method, data recovery circuit, data transmitting/receiving apparatus and information processing apparatus 有权数据恢复方法，数据恢复电路，数据发送/接收装置和信息处理装置公开(公告)号：US20060227916A1
公开(公告)日：2006-10-12
申请号：US11376064
申请日：2006-03-16
申请人： Naruhiro Masui , Hidetoshi Ema
发明人： Naruhiro Masui , Hidetoshi Ema
IPC分类号： H04L7/00
CPC分类号： H03L7/0995 , H04L7/0337 , H04L25/068
摘要： 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.
摘要翻译： 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产生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。
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7.发明授权公开(公告)号：US06954415B2
公开(公告)日：2005-10-11
申请号：US10606780
申请日：2003-06-27
申请人： Naruhiro Masui , Hidetoshi Ema
发明人： Naruhiro Masui , Hidetoshi Ema
CPC分类号： G11B7/126 , G11B7/0062 , G11B7/1263 , G11B11/1053 , H01S5/0427 , H01S5/0683
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US07791634B2
公开(公告)日：2010-09-07
申请号：US11793594
申请日：2006-04-20
IPC分类号： B41J2/435
CPC分类号： G02B26/127 , G06K15/1219 , H04N1/0473 , H04N2201/0082 , H04N2201/04755 , H04N2201/04791 , H04N2201/04794
摘要： A comparator compares a time interval between a first synchronization signal and a second synchronization signal with a target value, and outputs an error therebetween. A frequency calculator calculates a set value of a pixel clock frequency based on the error output from the comparator, and outputs a frequency specification signal for specifying a pixel clock frequency according to the calculated set value. A frequency divider divides a high frequency clock generated by a high frequency clock generator by a frequency division ratio based on the frequency specification signal output from the frequency calculator, and generates the pixel clock.
摘要翻译： 比较器将第一同步信号和第二同步信号之间的时间间隔与目标值进行比较，并在其间输出误差。 频率计算器基于从比较器输出的误差来计算像素时钟频率的设定值，并根据计算出的设定值输出用于指定像素时钟频率的频率指定信号。 分频器基于从频率计算器输出的频率指定信号，通过分频比将由高频时钟发生器产生的高频时钟分频，并生成像素时钟。
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公开(公告)号：US07684531B2
公开(公告)日：2010-03-23
申请号：US11002885
申请日：2004-12-03
申请人： Naruhiro Masui , Hidetoshi Ema
发明人： Naruhiro Masui , Hidetoshi Ema
IPC分类号： H04L7/00
CPC分类号： H04L7/0338
摘要： 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.
摘要翻译： 数据恢复方法包括以下步骤：（a）使用通过以规定间隔移位频率f2的第二时钟的相位而产生的多相时钟，对与频率f1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f2处于或低于第一频率f1; （b）从过采样数据中平均提取f1 / f2位; 和（c）恢复提取的比特以恢复所接收的数据。
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公开(公告)号：US07573790B2
公开(公告)日：2009-08-11
申请号：US11581150
申请日：2006-10-16
申请人： Naruhiro Masui , Hidetoshi Ema
发明人： Naruhiro Masui , Hidetoshi Ema
IPC分类号： G11B15/52
CPC分类号： G11B7/1263 , G11B7/0062 , G11B11/1053
摘要： 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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