公开(公告)号：US06520861B2

公开(公告)日：2003-02-18

申请号：US09816502

申请日：2001-03-21

申请人： Mitsunori Shoji ,  Kouichi Abe ,  Izumi Fukuda ,  Yasuhiko Fujii ,  Shigeru Okita ,  Hiroyuki Seki ,  Makoto Eguchi ,  Hideki Morinaga ,  Masaki Hirabayashi

发明人： Mitsunori Shoji ,  Kouichi Abe ,  Izumi Fukuda ,  Yasuhiko Fujii ,  Shigeru Okita ,  Hiroyuki Seki ,  Makoto Eguchi ,  Hideki Morinaga ,  Masaki Hirabayashi

IPC分类号： A63J502

CPC分类号： A63F13/57 ,  A63F13/10 ,  A63F13/525 ,  A63F13/65 ,  A63F2300/64 ,  A63F2300/66 ,  A63F2300/663 ,  A63F2300/8017 ,  G06T13/60

摘要： More reality is given to weather phenomena reflected on an image displayed on a screen of a display unit and an operability of an operatable object. A global weather deciding part 901 decides weather in each global area obtained by dividing the whole map of a virtual world into a plurality of global areas. The weather in the global a area in question is decided at intervals of a first time, in accordance with a preset behavior model and considering area information of each global area in advance. A local weather deciding part 902 decides weather in each local area obtained by dividing each global area into a plurality of local areas. The weather in the local area in question is decided at intervals of a second time, which is shorter than the first time, in accordance with the weather of the global area concerned decided by the global weather deciding part 901, and considering area information of each local area.

摘要翻译： 给出了在显示在显示单元的屏幕上的图像上反映的天气现象和可操作对象的可操作性的更多的现实。 全球天气决定部901判定通过将虚拟世界的整个地图划分为多个全局区域而获得的每个全局区域的天气。 根据预设的行为模型和事先考虑每个全球区域的区域信息，第一时间间隔地确定全球所涉及的区域中的天气。 局部天气决定部分902通过将每个全局区域划分为多个局部区域而获得的每个局部区域中的天气。 根据由全球天气决定部901决定的全球相关区域的天气，第二次以比第一次短的时间间隔决定该地区的天气，并考虑各个区域信息 当地。

公开(公告)号：US06175945B1

公开(公告)日：2001-01-16

申请号：US09074551

申请日：1998-05-07

申请人： Shigeru Okita

发明人： Shigeru Okita

IPC分类号： H03M1315

CPC分类号： H03M13/158 ,  G06F7/724 ,  H03M13/1515

摘要： A Reed Solomon decoder which can perform high-speed decoding operation without significantly increasing the circuit scale. The Reed Solomon decoder includes the following: input parameter operator 309 which generates syndrome and erasure data for a data sequence, decoding operation processing unit 304 which performs the decoding operation using the aforementioned syndrome and erasure data based on the command code indicating the prescribed decoding operation, and which generates the error data and error position data, and correction operation executor 312 which performs the correction operation using the aforementioned error data and error position data. The decoding operation processing unit 304 has an multiplier and an adder which execute the product and sum operation of the Galois field in one step.

摘要翻译： Reed Solomon解码器可以在不显着增加电路规模的情况下执行高速解码操作。 里德·所罗门解码器包括：输出参数运算器309，其生成数据序列的校正子和擦除数据;解码运算处理单元304，其使用上述校正子执行解码操作;以及擦除数据，基于表示规定解码操作的命令码 并且生成错误数据和错误位置数据，以及使用上述错误数据和错误位置数据执行校正操作的校正操作执行器312。 解码操作处理单元304具有乘法器和加法器，该乘法器和加法器在一个步骤中执行伽罗瓦域的积和和运算。

公开(公告)号：US5694389A

公开(公告)日：1997-12-02

申请号：US605742

申请日：1996-02-22

申请人： Takashi Seki ,  Noboru Taga ,  Shigeru Okita

发明人： Takashi Seki ,  Noboru Taga ,  Shigeru Okita

IPC分类号： H04L27/18 ,  H04J11/00 ,  H04J13/00 ,  H04J13/16 ,  H04L27/26

CPC分类号： H04L27/2657 ,  H04L27/2613 ,  H04L27/2675 ,  H04L27/2688

摘要： This invention improves the frequency acquisition range and the resistance to multipath interference. In a digital signal transmission system using OFDM, on the transmission side, some or all of a plurality of equidistant carrier positions are treated as reference carrier positions. The actual transmitted carriers are arranged in a predetermined pattern non-equidistant to the frequency carrier positions to form an OFDM symbol. This OFDM symbol is periodically transmitted as frequency reference symbols. On the reception side, the carrier arrangement pattern of the frequency reference symbols is detected, a carrier frequency offset is detected from the detected pattern offset, and the carrier frequency is compensated based on the frequency offset.

摘要翻译： 本发明改进了频率采集范围和抗多径干扰。 在使用OFDM的数字信号传输系统中，在发送侧，将多个等距的载波位置中的一些或全部视为参考载波位置。 实际发送的载波被布置成与等于载波位置的预定模式以形成OFDM符号。 周期性地将该OFDM符号作为频率参考符号发送。 在接收侧，检测频率参考符号的载波排列模式，从检测到的模式偏移检测载波频率偏移，并且基于频率偏移补偿载波频率。

公开(公告)号：US5439300A

公开(公告)日：1995-08-08

申请号：US202481

申请日：1994-02-28

申请人： Kiyoshi Hirakawa ,  Toichi Kondo ,  Shigeru Okita

发明人： Kiyoshi Hirakawa ,  Toichi Kondo ,  Shigeru Okita

IPC分类号： C21D1/18 ,  C21D6/04 ,  C21D9/40 ,  C23C8/22 ,  C23C8/32 ,  F16C33/62 ,  F16C19/00

CPC分类号： C23C8/22 ,  C21D9/40 ,  C23C8/32 ,  F16C33/62 ,  C21D1/18 ,  C21D6/04 ,  Y10S384/912

摘要： An object of this invention is to provide a rolling bearing having an inner race which can be used under a high fitting stress over 130 MPa, and can be processed more quickly than the conventional one. In a rolling bearing, according to the present invention, including an inner race which is used with a fitting stress applied between bore of said inner race and shaft, the inner race is formed by an alloy steel whose carbon content is ranged from 0.3 to 0.7% by weight, the inner race is subjected to a carburizing or carbonitriding treatment, and the carbon content (C.sub.1) of the surface layer of the raceway track of the inner race is at most 1.3% by weight, and the inner race has the difference (.DELTA.C=C.sub.1 -C.sub.2) between the carbon content (C.sub.1) of the surface layer and the carbon content (C.sub.2) of the core of the inner race being at least 0.4% by weight. When the amount of residual austenite of the inner race is 4.0 vol % or less and the hardness of the raceway track is Hv 720 or more, the inner race is high in dimensional stability, and its life-time with a foreign-matter-mixed high-temperature lubricant is increased.

摘要翻译： 本发明的目的是提供一种具有内圈的滚动轴承，该内圈可在130MPa以上的高配合应力下使用，并且可以比常规加工更快速。 在根据本发明的滚动轴承中，包括内圈，其在所述内圈和轴的孔之间施加的配合应力使用，内圈由碳含量为0.3至0.7的合金钢形成 重量％，对内圈进行渗碳或碳氮共渗处理，内圈的轨道轨道的表面层的碳含量（C1）为1.3％以下，内圈的差为 表面层的碳含量（C1）和内圈芯的碳含量（C2）之间的比例（DELTA C = C1-C2）为至少0.4重量％。 当内圈的残余奥氏体的含量为4.0体积％以下，轨道的硬度为720v以上时，内圈的尺寸稳定性高，并且与异物混合使用 高温润滑剂增加。

公开(公告)号：US5427457A

公开(公告)日：1995-06-27

申请号：US134588

申请日：1993-10-12

申请人： Kyozaburo Furumura ,  Yasuo Murakami ,  Nobuaki Mitamura ,  Shinichi Shirota ,  Shigeru Okita ,  Kazuo Sekino

发明人： Kyozaburo Furumura ,  Yasuo Murakami ,  Nobuaki Mitamura ,  Shinichi Shirota ,  Shigeru Okita ,  Kazuo Sekino

IPC分类号： C21D1/78 ,  C21D6/00 ,  C21D9/36 ,  C21D9/40 ,  C23C8/32 ,  C23C8/80 ,  F16C33/30 ,  F16C33/32 ,  F16C33/34 ,  F16C33/62 ,  F16C19/00

CPC分类号： F16C33/32 ,  C21D9/36 ,  C21D9/40 ,  C23C8/32 ,  C23C8/80 ,  F16C33/30 ,  F16C33/34 ,  F16C33/62 ,  C21D1/78 ,  C21D2211/001 ,  C21D6/002 ,  Y10S384/912 ,  Y10S384/913

摘要： An object of this invention is to provide a rolling bearing in which, as for the rolling elements, it is unnecessary to employ a high level heat treatment such as carburizing or carbonitriding which requires a long period of time to achieve, and which is sufficiently long in service life even when used with a lubricant containing foreign matters. In a rolling bearing, the amount of residual austenite (.gamma..sub.R vol %) in the surface layer of at least one of the inner and outer races is in a range of 25 to 40 vol %, and the surface hardness (Hv) thereof meets the following condition:-4.7.times.(.gamma..sub.R vol %)+900.ltoreq.Hv.ltoreq.-4.7.times.(.gamma..sub.R vol %)+1000and the hardness of the rolling elements combined with the inner and outer races is higher by H.sub.R C 1 to 2 than that of the one of the inner and outer races.

摘要翻译： 本发明的目的是提供一种滚动轴承，其中对于滚动元件，不需要采用需要较长时间来实现并且足够长的高渗透度或碳氮共渗的高水平热处理 使用寿命即使与含有外来物质的润滑剂一起使用。 在滚动轴承中，至少一个内圈和外圈的表层中的残余奥氏体量（γR vol％）在25〜40vol％的范围内，其表面硬度（Hv）满足 以下条件：-4.7倍（γR vol％）+ 900

公开(公告)号：US5079330A

公开(公告)日：1992-01-07

申请号：US562729

申请日：1990-08-06

申请人： Yoshiki Makabe ,  Shigeru Okita ,  Yoshiyuki Yamamoto

发明人： Yoshiki Makabe ,  Shigeru Okita ,  Yoshiyuki Yamamoto

IPC分类号： C08G2/18

CPC分类号： C08G2/18

摘要： A polyoxymethylene multi-copolymer obtainable by copolymerizing(a) trioxane,(b) at least one cyclic ether or formal compound chosen from the group of ethylene oxide, 1,3-dioxolane, 1,3-dioxepane, 1,3,5-trioxepane and 1,3,6-trioxocane, and(c) at least one compound chosen from the group of glycidyl phenyl ether, styrene oxide and glycidyl naphthyl ether,and characterized in that the number average molecular weight of said polyoxymethylene multi-copolymer is from 10,000 to 100,000, that the melting point (Tm) and crystallization temperature (Tc) there of are in a relationship ofTm-Tc

公开(公告)号：US20150044090A1

公开(公告)日：2015-02-12

申请号：US14381917

申请日：2012-07-24

申请人： Munetaka Mitsumura ,  Shigeru Okita ,  Hiroyuki Uchida

发明人： Munetaka Mitsumura ,  Shigeru Okita ,  Hiroyuki Uchida

IPC分类号： G01N3/22 ,  E05B15/16 ,  B60R25/021 ,  B22D17/00

CPC分类号： G01N3/22 ,  B22C9/24 ,  B22C19/04 ,  B22D17/00 ,  B60R25/02115 ,  E05B15/1614 ,  G01N29/11 ,  G01N2203/0067 ,  G01N2291/0234 ,  G01N2291/02827 ,  G01N2291/044

摘要： There are provided a strength evaluation method of a die casting product capable of appropriately evaluating the strength of the die casting product, and a die casting product in which the strength is evaluated by the strength evaluation method. A breakage test is performed by a simple strength tester after casting, and then, a strength reduction ratio is estimated based on an area ratio of cold flakes in a broken surface obtained by broken surface observation. Alternatively, ultrasonic flaw detection is performed for an internal defect in a predetermined range of a high stress portion of the die casting product, calculated by stress analysis in advance, and the die casting product is evaluated to have a predetermined strength when a defect ratio obtained by dividing a total area of the internal defect in the predetermined range by a total defect detection area is less than or equal to a predetermined value.

摘要翻译： 提供了能够适当地评价压铸产品的强度的压铸产品的强度评价方法和通过强度评价方法评价强度的压铸产品。 在铸造后，通过简单的强度试验机进行断裂试验，然后基于通过破碎的表面观察获得的破裂面中的冷片的面积比来估计强度降低率。 或者，对于预先通过应力分析计算出的压铸产品的高应力部分的预定范围内的内部缺陷进行超声波探伤，并且当获得的缺陷率获得时，将压铸产品评价为具有预定强度 通过将预定范围内的内部缺陷的总面积除以总缺陷检测区域小于或等于预定值。

公开(公告)号：US06997078B2

公开(公告)日：2006-02-14

申请号：US10307946

申请日：2002-12-03

申请人： Shigeru Okita ,  Daisuke Maruyama ,  Junji Minakuchi

发明人： Shigeru Okita ,  Daisuke Maruyama ,  Junji Minakuchi

IPC分类号： F16H1/18

CPC分类号： F16C33/3706 ,  F16H25/2238 ,  F16H2025/2242 ,  Y10T74/19777

摘要： A ball screw apparatus which can suppress retaining pieces from contacting a wall of a ball rolling path or ball circulating path, and suppress the retaining pieces between the balls from falling down, so that such a ball screw apparatus can be improved in noise reduction, operability and endurance. The retaining piece is rounded at an edge portion opposite to the ball, such that a radius of curvature of the edge portion is defined to be 0.05 mm to 1 mm, and the outer diameter of the retaining piece is in a range of 0.60 times or more to 0.85 times or less of the diameter of the ball.

摘要翻译： 一种滚珠丝杠装置，其能够抑制保持片与滚珠滚动路径或球循环路径的壁接触，并且抑制滚珠之间的保持片落下，从而可以提高这种滚珠丝杠装置的降噪，可操作性 和耐力。 保持件在与球相对的边缘部分处圆化，使得边缘部分的曲率半径被限定为0.05mm至1mm，并且保持件的外径在0.60倍或 多达0.85倍以下的球直径。

公开(公告)号：US20050078783A1

公开(公告)日：2005-04-14

申请号：US10933573

申请日：2004-09-03

申请人： Shigeru Okita

发明人： Shigeru Okita

IPC分类号： G06F1/04 ,  H03K5/00 ,  H03L7/06 ,  H03L7/087 ,  H03L7/099 ,  H03L7/18 ,  H04L27/14

CPC分类号： H03L7/18 ,  H03L7/087 ,  H03L7/0992

摘要： The object of the invention is to obtain a stable, locked clock with reduced output jitter in a digital phase-locked loop circuit. Control oscillating part 12 has frequency divider 18, period measurement circuit 20, moving average value computation circuit 22, and output clock generator 24. In intermediate oscillating frequency divider 18, as a result of tracking to synchronization control signals c, d from phase comparator 10, there is a wide variation in the period of intermediate clock g. However, by means of period measurement circuit 20 and moving average value computation circuit 22, varying slowly with a small fluctuation amplitude, period i of the moving average is obtained, and a stable output clock j that tracks reference clock a slowly and reliably is obtained from output clock generator 24.

摘要翻译： 本发明的目的是在数字锁相环电路中获得具有降低的输出抖动的稳定的锁定时钟。 控制振荡部分12具有分频器18，周期测量电路20，移动平均值计算电路22和输出时钟发生器24.在中间振荡分频器18中，作为跟踪来自相位比较器10的同步控制信号c，d的结果 ，中间钟g的周期有很大变化。 然而，通过周期测量电路20和移动平均值计算电路22，以小的波动幅度缓慢变化，获得移动平均值的周期i，并且获得缓慢且可靠地跟踪参考时钟的稳定的输出时钟j 来自输出时钟发生器24。

公开(公告)号：US06639591B2

公开(公告)日：2003-10-28

申请号：US09815996

申请日：2001-03-21

申请人： Mitsunori Shoji ,  Kouichi Abe ,  Izumi Fukuda ,  Yasuhiko Fujii ,  Shigeru Okita ,  Hiroyuki Seki ,  Makoto Eguchi ,  Hideki Morinaga ,  Masaki Hirabayashi

发明人： Mitsunori Shoji ,  Kouichi Abe ,  Izumi Fukuda ,  Yasuhiko Fujii ,  Shigeru Okita ,  Hiroyuki Seki ,  Makoto Eguchi ,  Hideki Morinaga ,  Masaki Hirabayashi

IPC分类号： G06F1700

CPC分类号： A63F13/57 ,  A63F13/10 ,  A63F13/65 ,  A63F2300/1037 ,  A63F2300/63 ,  A63F2300/64 ,  A63F2300/66 ,  A63F2300/663 ,  A63F2300/8017 ,  G06T13/60 ,  G09B29/007 ,  G09B29/10

摘要： More reality is given to weather phenomena reflected on an image displayed on a screen of a display unit and on operability of an operatable object. A global weather deciding part 901 decides weather in each global area obtained by dividing the whole map of a virtual world into a plurality of global areas. The weather in the global area in question is decided at intervals of a first time, in accordance with a preset behavior model and considering area information of each global area in advance. A local weather deciding part 902 decides weather in each local area obtained by dividing each global area into a plurality of local areas. The weather in the local area in question is decided at intervals of a second time, which is shorter than the first time, in accordance with the weather of the global area concerned decided by the global weather deciding part 901, and considering area information of each local area.