公开(公告)号：US09043182B2

公开(公告)日：2015-05-26

申请号：US12676002

申请日：2008-11-18

申请人： Yuzo Seo ,  Chidane Ouchi ,  Takao Ukaji

发明人： Yuzo Seo ,  Chidane Ouchi ,  Takao Ukaji

IPC分类号： G01C9/00 ,  G01B9/02

CPC分类号： G01B9/02083 ,  G01B9/02007 ,  G01B2290/70

摘要： An absolute position measurement apparatus measures an absolute position of an object to be measured using a first light source and a second light source which has coherency lower than that of the first light source. The absolute position measurement apparatus includes a measurement part which measures a point where phases of interference signals from the first and the second light sources coincide with each other or a point where an intensity of the interference signal from the second light source is maximized, an origin defining part which defines the point measured by the measurement part as an origin position, a phase storing part which stores the phase of the interference signal from the first light source at the origin position, an origin redefining part which redefines the origin position, and a position calculating part which calculates the absolute position of the object to be measured.

摘要翻译： 绝对位置测量装置使用具有低于第一光源的相干性的第一光源和第二光源来测量被测量物体的绝对位置。 绝对位置测量装置包括测量部分，其测量来自第一和第二光源的干扰信号的相位彼此一致的点或来自第二光源的干扰信号的强度最大化的点，原点 将由测量部分测量的点定义为原点位置的定义部分，存储来自第一光源的干涉信号在原点位置的相位的相位存储部分，重新​​定义原点位置的原点重新定义部分，以及 位置计算部，其计算被测量物体的绝对位置。

公开(公告)号：US20100031097A1

公开(公告)日：2010-02-04

申请号：US12510839

申请日：2009-07-28

申请人： Yuzo Seo

发明人： Yuzo Seo

IPC分类号： H03M13/07 ,  G06F11/00

CPC分类号： G01D5/24495 ,  G01D5/24452 ,  G01D5/24466 ,  G01D5/2448 ,  G01D5/2449

摘要： A detection apparatus detecting an error component contained in two signals (A, B) approximated by a cosine and sine functions representing an object position, the detection apparatus including an arithmetic portion (3, 4) which reduces an error contained in the signals (A, B) based on an error prediction value to output two error correction signals (A*, B*), a phase arithmetic portion (5) which calculates a phase (θ) based on the error correction signals (A*, B*), an arithmetic storage unit (9, 10) which stores the error correction signals (A*, B*) and a plurality of sampling values of the phase (θ), and a Fourier transform portion (11, 12) which obtains coefficients αk, βk, γk, and δk in the following two expressions: A*=α0+α1 cos θ+β1 sin θ+ . . . +αk cos kθ+βk sin kθ B*=γ0+γ1 cos θ+δ1 sin θ+ . . . +γk cos kθ+δk sin kθ (k≧2) wherein the arithmetic portion (3, 4) updates the error prediction value using the coefficients.

摘要翻译： 一种检测装置，其检测由表示物体位置的余弦和正弦函数近似的两个信号（A，B）中包含的误差分量，所述检测装置包括运算部（3,4），其减少包含在信号（A ，B）基于误差预测值输出两个误差校正信号（A *，B *），相位运算部分（5），其根据纠错信号（A *，B *）计算相位（theta） ，存储纠错信号（A *，B *）和相位（theta）的多个采样值的算术存储单元（9,10）以及获得系数alphak的傅立叶变换部分（11,12） ，betak，gammak和deltak在以下两个表达式中：A * = alpha0 + alpha1cosθ+ beta1sinθ+。 。 。 + alphak cos ktheta + betak sin ktata B * = gamma0 + gamma1cosθ+ delta1sinθ+。 。 。 + gammak cos ktheta + deltak sin ktheta（k> = 2）其中运算部分（3,4）使用系数更新误差预测值。

公开(公告)号：US06744583B2

公开(公告)日：2004-06-01

申请号：US10212688

申请日：2002-08-07

申请人： Hiroyuki Ikeda ,  Yuzo Seo ,  Youji Arita

发明人： Hiroyuki Ikeda ,  Yuzo Seo ,  Youji Arita

IPC分类号： G11B502

CPC分类号： B82Y10/00 ,  G11B5/59633 ,  G11B5/743 ,  G11B5/82 ,  G11B5/855 ,  G11B5/865 ,  G11B13/045 ,  G11B2005/0021

摘要： A method for forming a magnetic pattern by applying a first external magnetic field to a magnetic recording medium having a magnetic layer to magnetize uniformly the magnetic layer in a predetermined direction and heating locally the magnetic layer while a second external magnetic field is applied thereto, whereby the heated portion is magnetized in the direction opposite to the predetermined direction, wherein the second external magnetic field has a pulse-like magnetic field component. The method can form a fine magnetic pattern efficiently in a medium for high density recording, and a magnetic recording medium and a magnetic recording device capable of recording with high density can be provided economically in a short time.

摘要翻译： 通过对具有磁性层的磁记录介质施加第一外部磁场以在预定方向上均匀地磁化磁性层并且在施加第二外部磁场的同时对磁性层进行加热而形成磁性图案的方法，由此 加热部分沿与预定方向相反的方向被磁化，其中第二外部磁场具有脉冲状磁场分量。该方法可以在用于高密度记录的介质中有效地形成精细磁图案，并且磁记录 能够在短时间内经济地提供能够高密度记录的磁记录装置。

公开(公告)号：US08307264B2

公开(公告)日：2012-11-06

申请号：US12510839

申请日：2009-07-28

申请人： Yuzo Seo

发明人： Yuzo Seo

IPC分类号： G11C29/00

CPC分类号： G01D5/24495 ,  G01D5/24452 ,  G01D5/24466 ,  G01D5/2448 ,  G01D5/2449

摘要： A detection apparatus detecting an error component contained in two signals (A, B) approximated by a cosine and sine functions representing an object position, the detection apparatus including an arithmetic portion (3, 4) which reduces an error contained in the signals (A, B) based on an error prediction value to output two error correction signals (A*, B*), a phase arithmetic portion (5) which calculates a phase (θ) based on the error correction signals (A*, B*), an arithmetic storage unit (9, 10) which stores the error correction signals (A*, B*) and a plurality of sampling values of the phase (θ), and a Fourier transform portion (11, 12) which obtains coefficients αk, βk, γk, and δk in the following two expressions: A*=α0+α1 cos θ+β1 sin θ+ . . . +αk cos kθ+βk sin kθ B*=γ0+γ1 cos θ+δ1 sin θ+ . . . +γk cos kθ+δk sin kθ (k≧2) wherein the arithmetic portion (3, 4) updates the error prediction value using the coefficients.

摘要翻译： 一种检测装置，其检测由表示物体位置的余弦和正弦函数近似的两个信号（A，B）中包含的误差分量，所述检测装置包括运算部（3,4），其减少包含在信号（A ，B）基于误差预测值输出两个误差校正信号（A *，B *），相位运算部分（5），其基于纠错信号（A *，B *）计算相位（“ ），存储纠错信号（A *，B *）的多个采样值的运算存储单元（9,10）和相位（＆amp; s）的多个采样值，以及获得 系数αk，＆bgr; k，γk和δk在以下两个表达式中：A * =α0+α1cos＆Thetas; +＆bgr; 1 sin＆Thetas; +。 。 。 +αkcos k＆thetas; +＆bgr; k sin k＆thetas; B * =γ0+γ1cos＆Thetas; +δ1sin＆Thetas; +。 。 。 +γkcos k＆hetas; +δksin k＆thetas; （k≥2），其中运算部分（3,4）使用系数更新误差预测值。

公开(公告)号：US20100004888A1

公开(公告)日：2010-01-07

申请号：US12498066

申请日：2009-07-06

申请人： Yuzo Seo

发明人： Yuzo Seo

IPC分类号： G06F19/00 ,  G06F17/18

CPC分类号： G01D5/244

摘要： A measurement apparatus of the present invention is configured to measure a position of an object to be measured using two signals approximated by a cosine function and a sine function representing the position of the object to be measured, the measurement apparatus including a regression arithmetic unit (7-1, 7-2) configured to perform a regression calculation for corresponding one of the two signals, an interpolation arithmetic unit (8-1, 8-2) configured to obtain a value at a specific phase of the corresponding one of the two signals using information calculated by the regression arithmetic unit, and an error correction portion (6-1, 6-2) configured to correct an error estimated from the value at the specific phase of the corresponding one of the two signals obtained by the interpolation arithmetic unit.

摘要翻译： 本发明的测量装置被配置为使用由余弦函数近似的两个信号和表示被测量对象的位置的正弦函数来测量被测量物体的位置，该测量装置包括回归运算单元（ 7-1,7-2），被配置为对所述两个信号中的相应一个执行回归计算;插值运算单元（8-1,8-2），被配置为获得所述两个信号中的相应一个信号的特定相位的值 使用由回归运算单元计算出的信息的两个信号，以及纠错部（6-1,6-2），被配置为校正从通过插值获得的两个信号中相应的一个信号的特定相位的值估计出的误差 算术单元。

公开(公告)号：US06731446B2

公开(公告)日：2004-05-04

申请号：US09773610

申请日：2001-02-02

申请人： Hiroyuki Ikeda ,  Youji Arita ,  Masahiro Kawashima ,  Takeshi Kuriwada ,  Yuzo Seo

发明人： Hiroyuki Ikeda ,  Youji Arita ,  Masahiro Kawashima ,  Takeshi Kuriwada ,  Yuzo Seo

IPC分类号： G11B502

CPC分类号： G11B5/86 ,  G11B5/59633 ,  G11B5/59688 ,  G11B5/74 ,  G11B5/82 ,  G11B13/045 ,  G11B2005/0021

摘要： A method and device for forming a magnetic pattern in a magnetic recording medium, a magnetic recording medium formed thereby and a magnetic recording device that includes a magnetic recording medium formed by this method and/or device. The magnetic recording medium has a magnetic layer, a protective layer, and a lubricant layer formed on a substrate in this order, and the magnetic pattern is formed by locally heating the magnetic layer and applying an external magnetic field to the magnetic layer.

摘要翻译： 一种用于在磁记录介质中形成磁图案的方法和装置，由此形成的磁记录介质和包括由该方法和/或装置形成的磁记录介质的磁记录装置。 磁记录介质依次形成在基板上的磁性层，保护层和润滑层，通过局部加热磁性层和向磁性层施加外部磁场而形成磁性图案。

公开(公告)号：US4488117A

公开(公告)日：1984-12-11

申请号：US370189

申请日：1982-04-21

申请人： Yuzo Seo

发明人： Yuzo Seo

IPC分类号： G01N27/26 ,  C25C3/20 ,  G01N27/416 ,  G01R19/00 ,  G01N27/42

CPC分类号： G01R19/00 ,  C25C3/20

摘要： A backelectromotive force of an aluminum electrolysis cell is measured by the steps of: (a) repeatedly measuring voltage V and current I of the cell at a short interval; (b) forming groups of data each including measured values thus obtained within a relative short period; (c) calculating a constant e and its variance Ve with reference to each data group according to a linear regression expressed by an equation:V=r.multidot.I+ewhere r represents an internal resistance of the cell; (d) calculating a backelectromotive force E and its variance V.sub.E at a given time based on the constant e and its variance Ve calculated at the step (c), a backelectromotive force E' and its variance V'.sub.E with reference to a data group preceding the given time and a constant V.sub.T, and according to the following equations:P=(V'.sub.E +V.sub.T)/(Ve+V'.sub.E +V.sub.T)E=P.multidot.e+(1-P).multidot.E'V.sub.E =P.sup.2 .multidot.Ve+(1-P).sup.2 .multidot.(V'.sub.E +V.sub.T);and (e) repeating the steps (b), (c) and (d) at a relatively short interval.

摘要翻译： 通过以下步骤测量铝电解池的反电动势：（a）以短间隔反复测量电池的电压V和电流I; （b）形成数据组，每组数据包括在相对较短的时间内获得的测量值; （c）根据由等式表示的线性回归计算参考每个数据组的常数e及其方差Ve：V = rxI + e其中r表示电池的内阻; （d）基于在步骤（c）计算的常数e和其方差Ve计算给定时间的反电动势E及其方差VE，参考数据组的反电动势E'及其方差V'E 在给定时间和恒定VT之间，并且根据以下等式：P =（V'E + VT）/（Ve + V'E + VT）E = Pxe +（1-P）xE'VE = P2xVe + -P）2x（V'E + VT）; 和（e）以相对短的间隔重复步骤（b），（c）和（d）。

公开(公告)号：US20110134984A1

公开(公告)日：2011-06-09

申请号：US12958471

申请日：2010-12-02

申请人： Yuzo Seo

发明人： Yuzo Seo

IPC分类号： H04B17/00

CPC分类号： G01B9/02084 ,  G01B9/02083 ,  G01D5/24476

摘要： The apparatus corrects multi-phase signals for detecting a position of an object and obtains a phase corresponding to the position of the object. The apparatus includes a correcting unit correcting the multi-phase signals with error coefficients, respectively, a phase calculating unit performing calculation for the corrected multi-phase signals to obtain the phase, a regression unit performing regression for the calculated phases to obtain reference phases, a Fourier transform unit respectively performing Fourier transform for the corrected multi-phase signals whose phases having been respectively changed into the reference phases, and an updating unit updating, using Fourier coefficients obtained by the Fourier transform unit, the error coefficients respectively corresponding to the Fourier coefficients. The updating unit updates the error coefficients if a regression error in the regression performed by the regression unit satisfies a predetermined condition.

摘要翻译： 该装置校正用于检测物体位置的多相信号，并获得与物体的位置对应的相位。 该装置包括校正单元，分别用误差系数校正多相信号，相位计算单元对校正的多相信号进行计算以获得相位;回归单元，对所计算的相位执行回归以获得参考相位; 分别对已经分别改变为参考相位的相位的已校正多相信号执行付里叶变换的傅里叶变换单元，以及使用由傅里叶变换单元获得的傅里叶系数更新单元的更新单元，分别对应于傅里叶变换 系数。 如果由回归单元执行的回归中的回归误差满足预定条件，则更新单元更新误差系数。

公开(公告)号：US20100235137A1

公开(公告)日：2010-09-16

申请号：US12676002

申请日：2008-11-18

申请人： Yuzo Seo ,  Chidane Ouchi ,  Takao Ukaji

发明人： Yuzo Seo ,  Chidane Ouchi ,  Takao Ukaji

IPC分类号： G01B11/14 ,  G06F15/00 ,  G06F17/18

CPC分类号： G01B9/02083 ,  G01B9/02007 ,  G01B2290/70

摘要： An absolute position measurement apparatus measures an absolute position of an object to be measured using a first light source and a second light source which has coherency lower than that of the first light source. The absolute position measurement apparatus includes a measurement part which measures a point where phases of interference signals from the first and the second light sources coincide with each other or a point where an intensity of the interference signal from the second light source is maximized, an origin defining part which defines the point measured by the measurement part as an origin position, a phase storing part which stores the phase of the interference signal from the first light source at the origin position, an origin redefining part which redefines the origin position, and a position calculating part which calculates the absolute position of the object to be measured.

摘要翻译： 绝对位置测量装置使用具有低于第一光源的相干性的第一光源和第二光源来测量被测量物体的绝对位置。 绝对位置测量装置包括测量部分，其测量来自第一和第二光源的干扰信号的相位彼此一致的点或来自第二光源的干扰信号的强度最大化的点，原点 将由测量部分测量的点定义为原点位置的定义部分，存储来自第一光源的干涉信号在原点位置的相位的相位存储部分，重新​​定义原点位置的原点重新定义部分，以及 位置计算部，其计算被测量物体的绝对位置。

公开(公告)号：US20090076768A1

公开(公告)日：2009-03-19

申请号：US12206822

申请日：2008-09-09

申请人： Yuzo Seo

发明人： Yuzo Seo

IPC分类号： G01B11/14 ,  G01B9/02

CPC分类号： G01D5/266 ,  G01D5/2457

摘要： An absolute position measurement apparatus includes an output unit outputting a plurality of first signals and a plurality of superimposed signals formed by superimposing each of plural second signals on each of the plural first signals, a phase computing unit calculating phases of the first signals during a first period in which the output means outputs the plural first signals, and calculating phases of the second signals during a second period in which the output means outputs the plural superimposed signals, a regression computing unit calculating a regression coefficient of the phase of the first signals calculated during the first period, a subtracter calculating a phase difference between the phase of the first signals and the phase of the second signals during the second period, a phase difference computing unit determining an origin position of the object to be measured based on a position where a sign of the phase difference output from the subtracter is inverted, and an absolute position calculating unit calculating an absolute position of the object to be measured based on the origin position.

摘要翻译： 绝对位置测量装置包括输出单元，输出多个第一信号和通过将多个第二信号中的每一个叠加在多个第一信号中的每一个上而形成的多个叠加信号;相位计算单元，在第一信号中计算第一信号的相位 输出装置输出多个第一信号的周期，以及在输出装置输出多个叠加信号的第二周期期间计算第二信号的相位;回归计算单元，计算计算出的第一信号的相位的回归系数 在所述第一时段期间，减法器计算所述第一信号的相位与所述第二时段期间的所述第二信号的相位之间的相位差，相位差计算单元，基于所述第一信号的位置， 从减法器输出的相位差的符号被反转，并且abso 琵琶位置计算单元基于原点位置来计算被测量物体的绝对位置。