公开(公告)号：US07643601B2

公开(公告)日：2010-01-05

申请号：US10642519

申请日：2003-08-18

申请人： Naoki Kuwata ,  Takuji Yamamoto

发明人： Naoki Kuwata ,  Takuji Yamamoto

IPC分类号： H03D3/24

CPC分类号： H03L7/10 ,  H03L7/081 ,  H03L7/085 ,  H03L7/089 ,  H03L7/091 ,  H04J3/0685 ,  H04L7/0037 ,  H04L7/033

摘要： The invention concerns an optical transmitter and receiver, and provides an improved timing extraction circuit for use in an optical receiver that uses a clock of a frequency equal to one half the data transmission rate, and a duty cycle deviation handling circuit for use in the optical transmitter and receiver. The timing extraction circuit uses a PLL circuit containing a phase comparator circuit for performing a phase comparison between a data signal of bit rate B (bits/s) and a clock signal of B/2 (Hz) at intervals of 2/B (sec), and comprises: a detection circuit for detecting the absence of an output of phase comparison information from the phase comparator circuit by receiving a data signal of a prescribed pattern; and a control circuit for controlling, upon detecting the absence, the phase of the clock signal in order to maintain synchronization. Based on the result of evaluating the duty cycle between the input data before and after the point at which the PLL circuit is locked, the duty cycle deviation handling circuit controls the data discrimination phase before and after that point.

摘要翻译： 本发明涉及一种光发射机和接收机，并且提供一种改进的定时提取电路，用于使用等于数据传输速率的一半的频率的时钟的光接收机，以及用于光学系统中的占空比偏差处理电路 发射机和接收机。 定时提取电路使用包含相位比较器电路的PLL电路，用于以2 / B（秒）的间隔执行比特率B的数据信号（比特/秒）和时钟信号B / 2（Hz）之间的相位比较 ），并且包括：检测电路，用于通过接收规定模式的数据信号来检测来自相位比较器电路的相位比较信息的输出的不存在; 以及控制电路，用于在检测到不存在时钟信号时控制时钟信号的相位，以便保持同步。 基于评估PLL电路锁定点之前和之后的输入数据之间的占空比的结果，占空比偏差处理电路控制该点之前和之后的数据鉴别阶段。

公开(公告)号：US06064236A

公开(公告)日：2000-05-16

申请号：US39595

申请日：1998-03-16

申请人： Naoki Kuwata ,  Takuji Yamamoto

发明人： Naoki Kuwata ,  Takuji Yamamoto

IPC分类号： H03K5/00 ,  H03D13/00 ,  H03L7/089 ,  H04L7/027 ,  H04L7/033

CPC分类号： H03D13/003 ,  H03D13/007 ,  H03L7/089 ,  H04L7/033 ,  H04L7/027

摘要： Disclosed are a phase detector for detecting the phase difference between a data signal and a clock signal, and a timing extracting circuit for controlling the phase of the clock signal so that the phase relationship between the clock signal and the data signal is optimal by using the phase detector. The phase detector includes an edge detector for generating an edge signal at the rising edge and the falling edge of the data signal, and a D flip flop (D-FF) for storing and outputting the logical value of the clock signal at the time of generation of the edge signal, and holding the logical value until the generation of the next edge signal, thereby outputting a signal corresponding to the phase difference between the data signal and the clock signal. A clock generator in the timing extracting circuit having a PLL structure controls the phase of the clock signal so that the difference becomes optimal.

摘要翻译： 公开了一种用于检测数据信号和时钟信号之间的相位差的相位检测器，以及用于控制时钟信号的相位的定时提取电路，使得时钟信号和数据信号之间的相位关系通过使用 相位检测器。 相位检测器包括用于在数据信号的上升沿和下降沿产生边沿信号的边沿检测器，以及用于存储和输出时钟信号的逻辑值的D触发器（D-FF） 生成边缘信号，并保持逻辑值直到生成下一个边沿信号，从而输出与数据信号和时钟信号之间的相位差对应的信号。 具有PLL结构的定时提取电路中的时钟发生器控制时钟信号的相位，使得差值变得最佳。

公开(公告)号：US5751185A

公开(公告)日：1998-05-12

申请号：US827780

申请日：1997-04-11

申请人： Takuji Yamamoto ,  Naoki Kuwata

发明人： Takuji Yamamoto ,  Naoki Kuwata

IPC分类号： H03H11/04 ,  H03H11/12 ,  H03H1/00

CPC分类号： H03H11/1291 ,  H03H11/04

摘要： The present invention relates to a filter circuit which is suitable for use in an integrated circuit formed of transistors or field effect transistors, and controls the frequency band of the amplifying circuit used for the signal receiver, for example, within an optical communications system. The filter circuit includes a first transistor (T1) having a base or gate grounded with high-frequency component via a first resistor (R1); and a second resistor (R2) and a capacitor (C1) each having one end connected to the emitter or source of the first transistor (T1) and the other terminal grounded with high-frequency component. The filter circuit acts as a circuit in which the first transistor (T1) inputs the current (Iin) at a juncture at which the second resistor (R2) and the capacitor (C1) are connected therewith and outputs its collector or drain current (Iout).

摘要翻译： 本发明涉及一种适用于由晶体管或场效应晶体管形成的集成电路的滤波器电路，并且例如在光通信系统内控制用于信号接收机的放大电路的频带。 滤波电路包括：第一晶体管（T1），其具有通过第一电阻器（R1）与高频分量接地的基极或栅极; 以及第一电阻器（R2）和电容器（C1），每个电阻器（C1）的一端连接到第一晶体管（T1）的发射极或源极，另一个端子以高频分量接地。 滤波电路用作电路，其中第一晶体管（T1）在与第二电阻器（R2）和电容器（C1）连接的接合处输入电流（Iin），并输出其集电极或漏极电流（Iout ）。

公开(公告)号：US07027741B2

公开(公告)日：2006-04-11

申请号：US10128672

申请日：2002-04-23

申请人： Masazumi Marutani ,  Takuji Yamamoto ,  Naoki Kuwata ,  Katsuya Yamashita

发明人： Masazumi Marutani ,  Takuji Yamamoto ,  Naoki Kuwata ,  Katsuya Yamashita

IPC分类号： H04B10/02

CPC分类号： H04B10/291 ,  H03L7/08 ,  H03L7/081 ,  H03L7/087 ,  H03L7/12 ,  H04B10/29 ,  H04B10/695 ,  H04L7/033

摘要： According to a PLL circuit of the present invention, an output of a phase comparator is adjusted according to a space-to-mark transition-probability of an input signal so that an output of a voltage controlled oscillator has a predetermined frequency and phase. Therefore, even when a phase of a timing clock is set other than at 0, an output of the PLL circuit can be kept at the set phase, irrespective of the space-to-mark transition-probability. By using the PLL circuit as such in an optical communication apparatus and an optical communication system, a discrimination point can be kept almost fixed, and therefore, it is possible to lower an error rate.

摘要翻译： 根据本发明的PLL电路，根据输入信号的空间 - 标记转移概率来调整相位比较器的输出，使得压控振荡器的输出具有预定的频率和相位。 因此，即使定时时钟的相位被设定为0以外，也可以将PLL电路的输出保持在设定相位，而与空格间标记的转移概率无关。 通过在光通信装置和光通信系统中使用PLL电路，鉴别点可以保持几乎固定，因此可以降低错误率。

公开(公告)号：US20150290770A1

公开(公告)日：2015-10-15

申请号：US14407386

申请日：2012-07-22

申请人： Mitsuo Ishikawa ,  Takuji Yamamoto

发明人： Mitsuo Ishikawa ,  Takuji Yamamoto

IPC分类号： B24C9/00

CPC分类号： B24C9/006 ,  B24C1/10 ,  Y02P70/179

摘要： Provided is a shot peening device with which recovered projection material and foreign bodies can be more precisely separated while inhibiting an increase in the size of the device. The shot peening device is provided with: a projector which projects projection material onto a workpiece (W); recovery mechanisms which recover the projection material projected by the projector; and a wind power sorting mechanism in which recovered projection material is allowed to fall freely while an upward air current is applied to the recovered projection material, and foreign bodies included in the recovered projection material are separated from the recovered projection material.

摘要翻译： 提供了一种喷丸硬化装置，通过该喷丸硬化装置可以更精确地分离回收的投影材料和异物，同时抑制装置尺寸的增加。 喷丸硬化装置设有：将投影材料投影到工件（W）上的投影仪; 恢复由投影仪投射的投影材料的恢复机构; 以及风力分选机构，其中允许回收的突起材料自由下落，同时向回收的突起材料施加向上的气流，并且包括在回收的突起材料中的异物与回收的突起材料分离。

公开(公告)号：US08619915B2

公开(公告)日：2013-12-31

申请号：US12972209

申请日：2010-12-17

申请人： Takuji Yamamoto

发明人： Takuji Yamamoto

IPC分类号： H04L25/06

CPC分类号： H03F3/45475 ,  H03F3/45183 ,  H03F2203/45564 ,  H03F2203/45682 ,  H04L7/033

摘要： A receiver includes: a first amplifier for amplifying an input signal and outputting an output signal; a clock generator for generating a clock signal corresponding to a period of the output signal; a judger for outputting a first logical value or a second logical value in accordance with a phase lead or phase lag which has been occurred at a crossing point of the positive-phase signal and the negative-phase signal of the output signal upon rising or falling the clock signal; a detector for outputting a difference value between a time for which the judgment signal has the first logical value and a time for which the judgment signal has the second logical value; and an adjustor for adjusting reference voltages of a positive-phase signal and a negative-phase signal of the input signal in accordance with the difference value output from the detector.

摘要翻译： 接收机包括：第一放大器，用于放大输入信号并输出​​输出信号; 时钟发生器，用于产生对应于输出信号周期的时钟信号; 用于根据在上升或下降时输出信号的正相信号和负相位信号的交叉点发生的相位超前或相位滞后来输出第一逻辑值或第二逻辑值的判断器 时钟信号; 检测器，用于输出判断信号具有第一逻辑值的时间与判断信号具有第二逻辑值的时间之间的差值; 以及调整器，用于根据从检测器输出的差值调整输入信号的正相信号和负相位信号的参考电压。

公开(公告)号：US20100253436A1

公开(公告)日：2010-10-07

申请号：US12708972

申请日：2010-02-19

申请人： Kouichi Kanda ,  Takuji Yamamoto

发明人： Kouichi Kanda ,  Takuji Yamamoto

IPC分类号： H03F3/04

CPC分类号： H03F3/607 ,  H03F3/211 ,  H03F3/45183 ,  H03F2200/255 ,  H03F2200/423 ,  H03F2203/45548 ,  H03F2203/45554 ,  H03F2203/45631 ,  H03F2203/45706

摘要： An amplifier is realized by a distributed-constant-type amplifier including an input-side transmission line and an output-side transmission line, and a plurality of unit circuits coupled between the input-side transmission line and the output-side transmission line, in which each of the plurality of unit circuits is formed by including an amplification circuit having a gain equal to or greater than one.

摘要翻译： 放大器由包括输入侧传输线和输出侧传输线的分布式恒定型放大器和耦合在输入侧传输线和输出侧传输线之间的多个单元电路实现， 通过包括具有等于或大于1的增益的放大电路来形成多个单位电路中的每一个。

公开(公告)号：US20060005996A1

公开(公告)日：2006-01-12

申请号：US11172991

申请日：2005-07-05

申请人： Shigeru Muto ,  Akira Sato ,  Kohya Shimano ,  Norio Tamate ,  Tomoyuki Honda ,  Takuji Yamamoto ,  Kazuhisa Yamamoto ,  Takatoshi Ota ,  Hiroshi Ikeba

发明人： Shigeru Muto ,  Akira Sato ,  Kohya Shimano ,  Norio Tamate ,  Tomoyuki Honda ,  Takuji Yamamoto ,  Kazuhisa Yamamoto ,  Takatoshi Ota ,  Hiroshi Ikeba

IPC分类号： H05K1/18

CPC分类号： H05K3/325 ,  H05K3/3447 ,  H05K3/3468 ,  H05K2201/10409 ,  Y10T29/49144

摘要： In a method of attaching an electronic component to a printed circuit board by a plurality of screws that are inserted into corresponding through holes cut in the board from a surface of the board and then screwed into corresponding screw holes formed in the component mounted on an opposite surface, the component is screwed onto the board using one of the screws and the component and the screw are soldered onto the board with lead-free solder. After they have been cooled down, the component is screwed onto the board using remaining screws. With this, the strength of the connection between the component and board is improved and also the occurrence of warp of the board and component can be prevented.

公开(公告)号：US06609506B2

公开(公告)日：2003-08-26

申请号：US09892756

申请日：2001-06-28

申请人： Hiromi Matsuura ,  Kazuhiro Takashiba ,  Takahiro Shinkai ,  Takuji Yamamoto

发明人： Hiromi Matsuura ,  Kazuhiro Takashiba ,  Takahiro Shinkai ,  Takuji Yamamoto

IPC分类号： F02M2507

CPC分类号： F01N13/008 ,  F01N13/10 ,  F01N13/102 ,  F02M26/16 ,  F02M26/41 ,  F02M26/50

摘要： A recirculation exhaust gas extracted from the exhaust passage of an internal combustion engine and flowing through a recirculation passage. A recirculation control valve (6) controls the flow of the recirculation exhaust gas in the recirculation passage. A recirculation pipe (7) forming the recirculation passage has a hot or contact section (7c, 7e) extending near and along an exhaust manifold (1). The recirculation pipe (7) and the exhaust manifold (1) are covered with a heat-insulation cover (10). The drop of the temperature of the recirculation exhaust gas flowing through the recirculation passage is suppressed and the deposition of deposits including carbon in the recirculation control valve (6) is suppressed.

公开(公告)号：US5714022A

公开(公告)日：1998-02-03

申请号：US708367

申请日：1996-09-04

申请人： Takashi Nagao ,  Takuji Yamamoto ,  Takayuki Uchio

发明人： Takashi Nagao ,  Takuji Yamamoto ,  Takayuki Uchio

IPC分类号： B60C1/00 ,  B60C13/00 ,  C08L21/00

CPC分类号： B60C13/002 ,  B60C1/0025 ,  C08L21/00 ,  B60C2013/045

摘要： The invention provides a pneumatic tire in which each sidewall covering and protecting the side face of the carcass has a double-layer structure consisting of an inner layer adjacent to the carcass and an outer layer disposed outwardly on the inner layer and which is characterized in that the rubber component of the rubber composition constituting the inner layer consists essentially of 10 to 30% by weight of at least one rubber having a low degree of unsaturation selected from the group consisting of halogenated butyl rubber and ethylene-propylene-diene rubber and 90 to 70% by weight of at least one rubber having a high degree of unsaturation selected from the group consisting of natural rubber, isoprene rubber, butadiene rubber and styrene-butadiene rubber and that the rubber component of the rubber composition constituting the outer layer consists essentially of 30 to 60% by weight of at least one rubber having a low degree of unsaturation selected from the corresponding group defined above and 70 to 40% by weight of at least one rubber having a high degree of unsaturation selected from the corresponding group defined above.

摘要翻译： 本发明提供了一种充气轮胎，其中覆盖和保护胎体侧面的每个侧壁具有由邻近胎体的内层和外层设置在外层上的双层结构，其特征在于， 构成内层的橡胶组合物的橡胶组分基本上由10至30重量％的至少一种低级不饱和度的选自卤化丁基橡胶和乙烯 - 丙烯 - 二烯橡胶的橡胶和90至 70重量％的选自天然橡胶，异戊二烯橡胶，丁二烯橡胶和苯乙烯 - 丁二烯橡胶中的至少一种具有高不饱和度的橡胶，并且构成外层的橡胶组合物的橡胶组分基本上由 30至60重量％的至少一种具有低不饱和度的橡胶，其选自相应的定义 和70〜40重量％的至少一种选自上述相应基团的不饱和度高的橡胶。