公开(公告)号：US06876607B2

公开(公告)日：2005-04-05

申请号：US09765864

申请日：2001-01-18

申请人： Satoshi Furuta ,  Kenichi Hamada ,  Akira Nanba ,  Masakazu Taguchi

发明人： Satoshi Furuta ,  Kenichi Hamada ,  Akira Nanba ,  Masakazu Taguchi

IPC分类号： G11B20/14 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/007 ,  G11B20/10 ,  G11B20/12 ,  G11B27/30 ,  G11B5/09

CPC分类号： G11B20/10203 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/007 ,  G11B27/3027 ,  G11B2020/1457

摘要： A data recording method for calculating a digital sum value (DSV) corresponding to a proportion of positive data and negative data included in predetermined data ranges, selecting a resync pattern to be inserted between the data ranges according to the DSV, and inserting the selected resync pattern between the data ranges, has a step of selecting a resync pattern that minimizes differences in DSV between the data ranges.

摘要翻译： 一种用于计算与包括在预定数据范围中的正数据和负数据的比例相对应的数字和值（DSV）的数据记录方法，根据DSV选择要在数据范围之间插入的再同步模式，并插入所选择的再同步 数据范围之间的图案具有选择最小化数据范围之间的DSV差异的再同步模式的步骤。

公开(公告)号：US6151282A

公开(公告)日：2000-11-21

申请号：US409538

申请日：1999-09-30

申请人： Kenichi Hamada ,  Satoshi Furuta ,  Masakazu Taguchi ,  Toru Fujiwara

发明人： Kenichi Hamada ,  Satoshi Furuta ,  Masakazu Taguchi ,  Toru Fujiwara

IPC分类号： G11B20/14 ,  G11B5/09 ,  G11B7/00 ,  G11B7/005 ,  G11B11/10 ,  G11B20/10

CPC分类号： G11B20/10009 ,  G11B20/10296

摘要： A clock matching apparatus for a data reproduction system includes a phase error detection unit which detects a phase error of a clock signal based on samples of a readout signal output by a sampler of the data reconstruction system. A phase-locked loop supplies a phase-matched clock signal to the sampler by compensating for the phase error detected by the phase error detection unit. The phase error detection unit includes an edge detection unit which detects a sampling instant for an edge sample among the samples of the readout signal. A difference unit generates a difference in timing phase between the edge sample and a sync level, the sync level being a reference signal level corresponding to a level of the readout signal at the sampling instants thereof and defined based on a partial-response waveform, the difference in the timing phase being output to the phase-locked loop as the detected phase error.

摘要翻译： 用于数据再现系统的时钟匹配装置包括相位误差检测单元，其基于由数据重建系统的采样器输出的读出信号的样本来检测时钟信号的相位误差。 锁相环通过补偿由相位误差检测单元检测到的相位误差向采样器提供相位匹配的时钟信号。 相位误差检测单元包括边缘检测单元，其检测读出信号的样本中的边缘样本的采样时刻。 差分单元产生边缘样本和同步电平之间的定时相位差，同步电平是与其采样时刻的读出信号的电平相对应的参考信号电平，并且基于部分响应波形定义 作为检测到的相位误差，定时相位的差异被输出到锁相环。

公开(公告)号：US06977879B1

公开(公告)日：2005-12-20

申请号：US09656692

申请日：2000-09-07

申请人： Kenichi Hamada ,  Satoshi Furuta ,  Masakazu Taguchi

发明人： Kenichi Hamada ,  Satoshi Furuta ,  Masakazu Taguchi

IPC分类号： G11B20/14 ,  G11B20/10 ,  H04L7/027 ,  G11B20/18

CPC分类号： G11B20/10

摘要： A clock adjustment apparatus for adjusting a phase of a clock signal based on a phase error thereof is provided in a data reproduction system which samples a readout signal from a recording medium in synchronism with the clock signal, and reproduces data in accordance with a Viterbi algorithm by using sampled values of the readout signal. The recording medium is recorded with the data modulated in accordance with a recording rule of a predetermined partial response characteristic. The clock adjustment apparatus includes a phase error calculation circuit which calculates the phase error of the clock signal based on the sampled values of the readout signal.

摘要翻译： 在与时钟信号同步地对来自记录介质的读出信号进行采样的数据再现系统中提供了一种用于根据其相位误差调整时钟信号的相位的时钟调整装置，并根据维特比算法再现数据 通过使用读出信号的采样值。 按照预定的部分响应特性的记录规则调制的数据记录记录介质。 时钟调整装置包括相位误差计算电路，该电路根据读出信号的采样值来计算时钟信号的相位误差。

公开(公告)号：US06603722B1

公开(公告)日：2003-08-05

申请号：US09694066

申请日：2000-10-19

申请人： Masakazu Taguchi ,  Satoshi Furuta ,  Toru Fujiwara

发明人： Masakazu Taguchi ,  Satoshi Furuta ,  Toru Fujiwara

IPC分类号： G11B576

CPC分类号： G11B20/10101 ,  G11B5/012 ,  G11B11/10515 ,  G11B20/10009 ,  G11B20/10111 ,  G11B20/10296 ,  G11B20/1833

摘要： A data reproduction system, which determines reproduced data based on comparison results of path metrics calculated in accordance with a Viterbi algorithm based on branch metrics calculated from expected values and a sampled value of a readout signal, includes an expected value setting unit for variably setting the expected values used for a calculation of the branch metrics in order to perform a Viterbi detection process without being easily affected by the transient response, offset variation, phase error and nonlinear torsion component of the readout signal. The readout signal is obtained from a recording medium on which data is recorded in accordance with a recording signal of a partial response waveform, the expected values are determined by the partial response waveform, and the sampled value is obtained by sampling the readout signal at a predetermined frequency.

摘要翻译： 一种数据再现系统，其基于基于由预期值计算的分支度量和读出信号的采样值，基于根据维特比算法计算的路径度量的比较结果确定再现数据，包括预期值设置单元，用于可变地设置 用于计算分支度量的期望值，以执行维特比检测处理，而不会容易地受到读出信号的瞬态响应，偏移变化，相位误差和非线性扭转分量的影响。 从根据部分响应波形的记录信号记录数据的记录介质获得读出信号，期望值由部分响应波形确定，并且采样值通过在 预定频率。

公开(公告)号：US06831884B2

公开(公告)日：2004-12-14

申请号：US09991780

申请日：2001-11-26

申请人： Kenichi Hamada ,  Satoshi Furuta ,  Shigenori Yanagi

发明人： Kenichi Hamada ,  Satoshi Furuta ,  Shigenori Yanagi

IPC分类号： G11B7005

CPC分类号： G11B7/0053 ,  G11B11/10515 ,  G11B20/10009 ,  G11B20/10055 ,  G11B20/10222 ,  G11B20/10296

摘要： In a data reproducing apparatus, a monitor edge sample value is generated based on a second sample value at a trailing edge of the reproduction signal and a change amount of the monitor edge sample value is generated as an offset amount in a first processing part. Then, the offset amount is supplied to a second processing part where the second sample value is obtained by sampling the reproduction signal at the trailing edge. Then, the second processing part restores data based on the reproduction signal and the offset amount.

摘要翻译： 在数据再现装置中，基于在再现信号的后沿处的第二采样值产生监视器边缘采样值，并且在第一处理部分中生成监视器边缘采样值的变化量作为偏移量。 然后，偏移量被提供给第二处理部分，其中通过对后沿处的再现信号进行采样来获得第二采样值。 然后，第二处理部分基于再现信号和偏移量恢复数据。

公开(公告)号：US20120216452A1

公开(公告)日：2012-08-30

申请号：US13467226

申请日：2012-05-09

申请人： Satoshi Furuta ,  Frédéric Tort ,  Daniel Meyet

发明人： Satoshi Furuta ,  Frédéric Tort ,  Daniel Meyet

IPC分类号： C10L1/19

CPC分类号： C10L1/026 ,  C10L1/143 ,  C10L1/19 ,  C10L1/191 ,  C10L1/1973 ,  C10L10/12 ,  C10L10/16 ,  C10L2200/0446 ,  C10L2200/0476 ,  C10L2270/026 ,  Y02E50/13 ,  Y02P30/20

摘要： Cetane improver for diesel fuels, characterized in that it comprises at least one ester of stearic acid, selected from the esters of linear or branched monoalcohols containing 1 to 6 carbon atoms: a) added in the pure state to a mixture of at least one vegetable or animal oil ester in crude or partially hydrogenated form b) or else included in a mixture of esters of one or more vegetable and/or animal oils, in crude or partially hydrogenated form, the mixtures of saturated or unsaturated esters being such that the ratio by mass of the amount of stearic ester(s) to the total sum of the amounts of unsaturated esters present in the vegetable or animal oil esters varies from 1% to 12%, and the unsaturated fatty acid esters being esters of mono or polyunsaturated acids containing at least 18 carbon atoms with monoalcohols.

摘要翻译： 用于柴油燃料的十六烷值改进剂，其特征在于它包含至少一种选自含有1至6个碳原子的直链或支链一元醇的硬脂酸酯：a）以纯态加入到至少一种植物 或粗制或部分氢化形式的动物油酯b）或者以粗或部分氢化的形式包含在一种或多种植物油和/或动物油的酯的混合物中，饱和或不饱和酯的混合物使得该比例 的硬脂酸酯的量相对于植物油或动物油酯中存在的不饱和酯的总量的总和为1％〜12％，不饱和脂肪酸酯为单或多不饱和酸的酯 含有至少18个碳原子与一元醇。

公开(公告)号：US20100116088A1

公开(公告)日：2010-05-13

申请号：US12573275

申请日：2009-10-05

申请人： Masaaki SATO ,  Satoshi Furuta ,  Takahiro Kudo ,  Takehiro Tsuchida

发明人： Masaaki SATO ,  Satoshi Furuta ,  Takahiro Kudo ,  Takehiro Tsuchida

IPC分类号： B22F1/00 ,  C22C38/00

CPC分类号： C22C38/04 ,  B22F2003/023 ,  B22F2003/026 ,  C22C1/1084 ,  C22C33/0207 ,  C22C33/0264

摘要： A high-strength composition iron powder is prepared by mixing an iron base powder with 0.5 to 3.0 mass % of an Fe—Mn powder having a particle diameter of 45 μm or less and a Mn content in the range of 60 to 90 mass %, 1.0 to 3.0 mass % of a Cu powder, 0.3 to 1.0 mass % of a graphite powder, and 0.4 to 1.2 mass % of a powder lubricant for die-forming while adjusting the ratio of the amount of Mn contained in the Fe—Mn powder to the amount of the Cu powder in the range of 0.1 to 1. The high-strength composition iron powder is press-formed and sintered at a temperature equal to or higher than the melting point of Cu to produce a high-strength sintered part having a tensile strength of 580 MPa or higher without using expensive alloying elements such as Ni and Mo.

摘要翻译： 通过将铁基粉末与0.5〜3.0质量％的粒径为45μm以下的Mn-Mn粉末和Mn含量在60〜90质量％的范围内混合来制备高强度组合物铁粉末， 1.0〜3.0质量％的Cu粉末，0.3〜1.0质量％的石墨粉末和0.4〜1.2质量％的用于模具成形的粉末润滑剂，同时调节Fe-Mn粉末中含有的Mn的比例 与Cu粉末的量在0.1〜1的范围内。高强度组合物铁粉被压制成型，在Cu的熔点以上的温度下进行烧结，制成具有 拉伸强度为580MPa以上，而不使用昂贵的合金元素如Ni和Mo。

公开(公告)号：US07696376B2

公开(公告)日：2010-04-13

申请号：US10558935

申请日：2004-06-23

申请人： Satoshi Furuta

发明人： Satoshi Furuta

IPC分类号： C07C67/02

CPC分类号： B01J21/063 ,  B01J21/066 ,  B01J23/002 ,  B01J27/16 ,  B01J35/1014 ,  B01J35/1019 ,  B01J2523/00 ,  C07C67/03 ,  C07C69/52 ,  C07C69/24 ,  B01J2523/31 ,  B01J2523/48 ,  B01J2523/51 ,  B01J2523/47 ,  B01J2523/41

摘要： A method for the manufacture of an ester by transesterification allows the transesterification reaction to proceed within a short reaction time and under a pressure of the order of normal pressure. It was found that transesterification proceeds when a starting material ester and an alcohol are brought into contact with a catalyst comprising (A) an amorphous zirconium oxide and (B) an oxide of a Group II element, an oxide of a Group V element, and/or an oxide of a Group IV element other than zirconium and hafnium. In this method, it is preferred that the starting material ester in a liquid-phase state and the alcohol in a vapor-phase state be brought into contact with a solid acid catalyst comprising the above components (A) and (B), the starting material ester be an oil or fat, and the alcohol be methanol or ethanol. An oxide of titanium, silicon, germanium, or tin is the preferred oxide of the Group IV element other than zirconium and hafnium.

摘要翻译： 通过酯交换法制造酯的方法允许酯交换反应在短的反应时间内和在正常压力的压力下进行。 已经发现，当使原料酯和醇与包含（A）无定形氧化锆和（B）II族元素的氧化物，V族元素的氧化物和 /或除了锆和铪之外的IV族元素的氧化物。 在该方法中，优选使液相状态的原料酯和气相状态的醇与包含上述成分（A）和（B）的固体酸催化剂接触，起始 原料酯为油或脂肪，醇为甲醇或乙醇。 钛，硅，锗或锡的氧化物是除了锆和铪之外的第IV族元素的优选氧化物。

公开(公告)号：US07211681B2

公开(公告)日：2007-05-01

申请号：US10544822

申请日：2004-03-19

申请人： Satoshi Furuta

发明人： Satoshi Furuta

IPC分类号： C07C51/43 ,  C07C67/02

CPC分类号： C11C3/10 ,  B01J23/30 ,  B01J27/053 ,  C07C67/03 ,  C11C3/003 ,  C07C69/24 ,  C07C69/52

摘要： It is an object of this invention to provide a method for producing an ester by a transesterification reaction in which the reaction can be stably performed in a short time at a pressure approximately equal to normal pressure. The ester is produced by a transesterification reaction in which a starting material ester and an alcohol are brought into contact with a solid acid catalyst that displays the characteristics of a very strong acid in terms of the absolute value of argon adsorption heat ranging from 15 to 22 kJ/mol. In particular, it is preferable that the starting material ester in a liquid phase and alcohol in a vapor phase be brought into contact with the solid acid catalyst, and that the starting material ester be oil or fat, and the alcohol be methanol or ethanol.

摘要翻译： 本发明的目的是提供一种通过酯交换反应制备酯的方法，其中反应可在短时间内以大约等于常压的压力稳定地进行。 该酯通过酯交换反应制备，其中原料酯和醇与固体酸催化剂接触，该固体酸催化剂以从15至22的氩吸附热的绝对值显示出非常强的酸的特性 kJ / mol。 特别优选使液相中的原料酯和汽相的醇与固体酸催化剂接触，原料酯为油脂，醇为甲醇或乙醇。

公开(公告)号：US5396295A

公开(公告)日：1995-03-07

申请号：US108610

申请日：1993-08-31

申请人： Satoshi Furuta

发明人： Satoshi Furuta

IPC分类号： G09G3/20 ,  G09G5/00 ,  G09G5/12 ,  H04N3/12 ,  H04N5/66 ,  H04N5/04

CPC分类号： G09G5/008 ,  G09G3/20 ,  H04N3/127

摘要： A phase control circuit, which can be operated easily, automatically controls the phase of a video signal and a sampling clock signal. A delay circuit (24) outputs delayed clock pulses (DP) that are out of phase with each other, and switching circuits (25a.about.25c) select one, at a time, of the delayed clock pulses (DP) that are out of phase with each other in response to respective switching signals (SS1.about.SS3) from a control circuit (23), Counters (28a.about.28c) count pixel data (ED) latched by data latch circuits (26a.about.26c) each time the delayed clock pulses (DP) are outputted by the corresponding switching circuits (25a.about.25c), The control circuit (23) confirms the counts of the counters in each frame period, and controls a switching circuit (25d) to select a clock pulse in phase with the delayed clock pulse (DP) from the switching circuit (25b) and output the selected clock pulse to a panel display unit all the counts are equal to or greater than the count of the counter (28b) first sampling screen pattern.

摘要翻译： PCT No.PCT / JP93 / 00033 Sec。 371日期：1993年8月31日 102（e）日期1993年8月31日PCT提交1993年1月12日PCT公布。 公开号WO93 / 15498 日期：1993年8月5日。可以容易操作的相位控制电路自动控制视频信号和采样时钟信号的相位。 延迟电路（24）输出彼此不同相位的延迟的时钟脉冲（DP），并且切换电路（25a差分25c）每次选择一个延迟的时钟脉冲（DP） 响应于来自控制电路（23）的相应开关信号（SS1差分SS3），计数器（28a差分28c）每次延迟的时钟脉冲计数数据锁存电路（26a差分26c）锁存的像素数据（ED） （DP）由相应的开关电路（25a差分25c）输出，控制电路（23）在每个帧周期中确认计数器的计数，并且控制切换电路（25d）与时钟脉冲同相 延迟时钟脉冲（DP），并将所选择的时钟脉冲输出到面板显示单元，所有计数都等于或大于计数器（28b）第一采样屏幕图案的计数。