公开(公告)号：US20080224766A1

公开(公告)日：2008-09-18

申请号：US12129454

申请日：2008-05-29

申请人： Daisuke YAMAZAKI ,  Kunihiko GOTOH

发明人： Daisuke YAMAZAKI ,  Kunihiko GOTOH

IPC分类号： H03D1/00

CPC分类号： H04L27/06 ,  H03D1/22 ,  H04B1/707 ,  H04B2201/70715 ,  H04L25/067

摘要： A modulation ratio enhancement circuit increases the modulation ratio of a current signal which is ASK-modulated with signal data. A branch unit, an average value detection unit, a comparator and a buffer constitute a demodulation unit so that the signal data is demodulated from a current signal of which the modulation ratio is increased by the modulation ratio enhancement circuit.

摘要翻译： 调制比增强电路增加了用信号数据进行ASK调制的电流信号的调制比。 分支单元，平均值检测单元，比较器和缓冲器构成解调单元，使得通过调制比增强电路从调制比增大的当前信号中解调信号数据。

公开(公告)号：US20080007352A1

公开(公告)日：2008-01-10

申请号：US11892700

申请日：2007-08-27

申请人： Daisuke Yamazaki ,  Andrzej Radecki

发明人： Daisuke Yamazaki ,  Andrzej Radecki

IPC分类号： H03L7/00

CPC分类号： H03K3/027 ,  H03K3/03 ,  H03K4/502

摘要： Widening the frequency range without increasing the power consumption. Current circuits output charge current based on control current. Capacitors are provided in association with the current circuits and store the charge current. Discharge transistors are provided in association with the capacitors and cause the capacitors to discharge electric charge. On-off transistors are connected between the current circuits and the capacitors and open or close the paths between the current circuits and the capacitors in accordance with the voltages across the capacitors. Signal output transistors have their gates connected between the current circuits and the on-off transistors and output signals to a flip-flop in accordance with the charge current. The flip-flop drives the discharge transistors alternately in accordance with the signals.

摘要翻译： 扩大频率范围而不增加功耗。 电流电路根据控制电流输出充电电流。 电容器与当前电路相关联并存储充电电流。 与电容器相关联地设置放电晶体管，并使电容器放电。 开 - 关晶体管连接在电流电路和电容器之间，并根据电容器两端的电压来打开或闭合电流电路和电容器之间的路径。 信号输出晶体管的栅极连接在电流电路和导通截止晶体管之间，并根据充电电流将信号输出到触发器。 触发器根据信号交替驱动放电晶体管。

公开(公告)号：US20060223287A1

公开(公告)日：2006-10-05

申请号：US11393808

申请日：2006-03-31

申请人： Yasuhisa Ushida ,  Daisuke Shinoda ,  Daisuke Yamazaki ,  Koji Hirata ,  Yuhei Ikemoto ,  Naoki Shibata ,  Kazuo Aoki ,  Encarnacion Garcia Villora ,  Kiyoshi Shimamura

发明人： Yasuhisa Ushida ,  Daisuke Shinoda ,  Daisuke Yamazaki ,  Koji Hirata ,  Yuhei Ikemoto ,  Naoki Shibata ,  Kazuo Aoki ,  Encarnacion Garcia Villora ,  Kiyoshi Shimamura

IPC分类号： H01L21/20 ,  H01L21/36 ,  H01L31/20

CPC分类号： C30B25/02 ,  C30B25/183 ,  C30B29/403 ,  H01L21/02414 ,  H01L21/02458 ,  H01L21/0254 ,  H01L21/02576 ,  H01L21/02579 ,  H01L21/0262 ,  H01L21/02661 ,  H01L33/007 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2924/00014 ,  H01L2924/00

摘要： A method of forming a low temperature-grown buffer layer having the steps of: placing a Ga2O3 substrate in a MOCVD apparatus; providing a H2 atmosphere in the MOCVD apparatus and setting a buffer layer growth condition having an atmosphere temperature of 350° C. to 550° C.; and supplying a source gas having two or more of TMG, TMA and NH3 onto the Ga2O3 substrate in the buffer layer growth condition to form the low temperature-grown buffer layer on the Ga2O3 substrate.

摘要翻译： 一种形成低温生长缓冲层的方法，其具有以下步骤：将Ga 2 N 3 O 3衬底放置在MOCVD装置中; 在MOCVD装置中提供H 2 O 2气氛，并设定气氛温度为350℃至550℃的缓冲层生长条件。 并在缓冲层生长条件下将具有TMG，TMA和NH 3的两种或多种的源气体供应到Ga 2 O 3 N 3衬底上 以在Ga 2 N 3 O 3衬底上形成低温生长的缓冲层。

公开(公告)号：US07068747B2

公开(公告)日：2006-06-27

申请号：US09952191

申请日：2001-09-14

申请人： Hiroyuki Rokugawa ,  Tadashi Ikeuchi ,  Daisuke Yamazaki ,  Masaaki Kawai

发明人： Hiroyuki Rokugawa ,  Tadashi Ikeuchi ,  Daisuke Yamazaki ,  Masaaki Kawai

IPC分类号： H04L7/02

CPC分类号： H03L7/085 ,  H03L7/091 ,  H04L7/033

摘要： In a data decision circuit: a clock generation unit generates a clock signal based on a phase difference signal so that the clock signal has an optimum phase with respect to a phase of an input data signal; a data determination unit determines data values carried by the input data signal, by using the clock signal; a phase-difference detection unit detects a rising-side phase difference and a falling-side phase difference, where the rising-side phase difference is a phase difference between a rising of the input data signal and a next transition in the clock signal, and the falling-side phase difference is a phase difference between the transition and a next falling of the input data signal; and a phase-difference-signal generation unit generates the phase difference signal so as to represent a difference between the rising-side phase difference and the falling-side phase difference.

公开(公告)号：US20050280509A1

公开(公告)日：2005-12-22

申请号：US11042440

申请日：2005-01-26

申请人： Yoshinori Tanaka ,  Kunihiko Gotoh ,  Daisuke Yamazaki

发明人： Yoshinori Tanaka ,  Kunihiko Gotoh ,  Daisuke Yamazaki

IPC分类号： G01S13/75 ,  G01S13/76 ,  G06K7/00 ,  G06K19/07 ,  H04Q5/22

CPC分类号： G06K7/0008 ,  G01S13/758 ,  G06K7/10297 ,  G06K19/0723 ,  Y02D70/10

摘要： A reader device and RF tag improves the efficiency of frequency usage without increasing bandwidth using wireless communication from the reader to the tag and provides a transmission method that improves the power supply efficiency from the reader to the tag to extend the communication distance from the tag to the reader. A reader device for wirelessly communicating with an RF tag, comprises circuitry operable to transmit a wireless signal including information indicating encoding method of data to the RF tag and circuitry operable to receive and demodulate a wireless signal from the RF tag.

摘要翻译： 读取器设备和RF标签提高了频率使用的效率，而不用使用从读取器到标签的无线通信来增加带宽，并且提供了一种传输方法，其提高了从读取器到标签的电力供应效率，以将通信距离从标签扩展到 读者。 一种用于与RF标签无线通信的读取器装置，包括可操作以将包括指示数字编码方式的信息的无线信号和可用于从RF标签接收和解调无线信号的电路的电路发送到RF标签的电路。

公开(公告)号：US06597245B2

公开(公告)日：2003-07-22

申请号：US10234872

申请日：2002-09-04

申请人： Daisuke Yamazaki

发明人： Daisuke Yamazaki

IPC分类号： H03F308

CPC分类号： H04B10/6931 ,  H03G3/3084 ,  H04B10/6911 ,  H04B10/6932

摘要： A preamplifier for use in an optical signal receiver is provided, which is capable of circumventing a problem of oscillation or shortage of bandwidth even in case an employed photodiode has a capacity value which inherently causes oscillation or shortage of bandwidth. The preamplifier includes a variable gain amplifier connected to a light receiving element for converting a received light signal to electric current; a variable feedback resistor connected to an input and output of the variable gain amplifier; and a band detection circuit for detecting a signal band amplified by the variable gain amplifier, wherein a band control signal obtained from the band detection circuit controls the band of the variable gain amplifier.

摘要翻译： 提供了一种用于光信号接收机的前置放大器，即使在使用光电二极管具有固有地引起振荡或带宽不足的容量值的情况下，也能够避免振荡或带宽不足的问题。 前置放大器包括连接到光接收元件的可变增益放大器，用于将接收到的光信号转换成电流; 连接到可变增益放大器的输入和输出的可变反馈电阻器; 以及用于检测由可变增益放大器放大的信号频带的频带检测电路，其中从频带检测电路获得的频带控制信号控制可变增益放大器的频带。

公开(公告)号：US06467358B1

公开(公告)日：2002-10-22

申请号：US09175385

申请日：1998-10-19

申请人： Tomomi Nishi ,  Shuichi Haruyama ,  Yoshiaki Tanaka ,  Manabu Fueki ,  Daisuke Yamazaki

发明人： Tomomi Nishi ,  Shuichi Haruyama ,  Yoshiaki Tanaka ,  Manabu Fueki ,  Daisuke Yamazaki

IPC分类号： G01F174

CPC分类号： G01F1/712 ,  G01F1/363 ,  G01F1/74

摘要： A flow meter for a multiphase flow which comprises a cross-correlation flow meter (26) for measuring basic values to calculate component ratios of respective fluids constituting a multiphase fluid (2) comprising a gas and a plurality of liquids in a pipe (1) through which the multiphase fluid flows; and an arithmetic circuit (22) for calculating flow rates of the respective fluids, which acquires information concerning ratios of liquid phase components of the multiphase fluid (2) on the basis of both measured values obtained by the cross-correlation flow meter (26) at an instance when the pipe (1) is filled with liquid alone during the passage of the multiphase fluid (2) through the pipe (1) provided with the cross-correlation flow meter (26) and characteristic values of the respective fluids of the multiphase fluid (2), acquires information concerning ratios of the respective fluids from a time average of the measurements obtained by the cross-correlation flow meter (26) and the respective characteristic values, then obtains the component ratios of the respective fluids by utilizing the fact that a sum of the component ratios of the respective fluids becomes (1), calculates an average flow velocity of the multiphase fluid (2) from time between fluctuations of the measured values obtained by the cross-correlation flow meter (26), and calculates flow rates of the respective fluids by utilizing the respective component ratios and the average flow velocity.

摘要翻译： 一种用于多相流的流量计，其包括用于测量基本值的互相关流量计（26），以计算构成管道（1）中的气体和多种液体的构成多相流体（2）的各种流体的分量比， 多相流体通过其流动; 以及用于计算各流体的流量的运算电路（22），其根据由互相关流量计（26）获得的两个测量值来获取关于多相流体（2）的液相成分的比率的信息， 在多相流体（2）通过设置有互相关流量计（26）的管道（1）通过管道（1）时单独填充管道的情况下，以及 多相流体（2）从相互关联流量计（26）获得的测量的时间平均值和各个特征值中获取关于各流体的比率的信息，然后通过利用 事实上，各流体的分量比的总和变为（1），从测量值的波动之间的时间计算多相流体（2）的平均流速 通过互相关流量计（26）获得，并且通过利用各个分量比和平均流速来计算各流体的流量。

公开(公告)号：US06304144B1

公开(公告)日：2001-10-16

申请号：US09351403

申请日：1999-07-09

申请人： Daisuke Yamazaki ,  Seiichi Ozawa

发明人： Daisuke Yamazaki ,  Seiichi Ozawa

IPC分类号： H03F345

CPC分类号： H03F3/45991 ,  H03F3/45973

摘要： DC components are removed by a first and a second capacitor from a normal signal and its inverted signal from a first and a second input terminal, and the signals are input to a DC level generating circuit. The DC level generating circuit newly adds a DC component to the respective signals from which the DC components are removed by the first and the second capacitors, and extracts only a DC voltage from a feedback voltage with a low-pass filter using the fist and the second capacitors. The circuit of the DC level generating circuit which includes the low-pass filter using the first and the second capacitors is configured so that a high-frequency cut-off frequency other than that included into a loop gain by the low-pass filter is not included. Consequently, only one high-frequency cut-off frequency exists in the loop gain, thereby preventing a feedback circuit from oscillating.

摘要翻译： DC分量由第一和第二电容器从正常信号及其来自第一和第二输入端的反相信号中去除，并且信号被输入到DC电平发生电路。 直流电平发生电路向由第一和第二电容器除去直流分量的各个信号新添加DC分量，并且仅使用第一和第二电容器从低通滤波器的反馈电压中提取直流电压， 第二电容器。 包括使用第一和第二电容器的低通滤波器的直流电平发生电路的电路被配置为使得除了被低通滤波器包括在环路增益中的高频截止频率不是 包括。 因此，环路增益中仅存在一个高频截止频率，从而防止反馈电路振荡。

公开(公告)号：US06191630B1

公开(公告)日：2001-02-20

申请号：US09184543

申请日：1998-11-02

申请人： Seiichi Ozawa ,  Daisuke Yamazaki

发明人： Seiichi Ozawa ,  Daisuke Yamazaki

IPC分类号： H03H1126

CPC分类号： H03K5/06 ,  H03K3/011 ,  H03K3/0231 ,  H03K3/354 ,  H03K5/133 ,  H03K2005/00032 ,  H03K2005/00065 ,  H03K2005/00202

摘要： Disclosed is a delay circuit for delaying at least the timing of a rising edge or the timing of a falling edge of an input signal alternating between first and second levels. The delay circuit includes (1) a charge pump in which first and second field-effect transistors of different channels are serially connected; (2) a capacitor connected in parallel with the first field-effect transistor; (3) a charging current control circuit for passing a charging current into the capacitor via the second field-effect transistor of the charge pump when the input signal is at the first level; (4) a discharge current control circuit for releasing a discharge current from the capacitor via the first field-effect transistor when the input signal is at the second level; and (5) a discrimination circuit for outputting a signal of a prescribed logic level based upon a terminal voltage of the capacitor. The values of the charging current and discharge current of the capacitor are controlled to control the slope of the input voltage to the discrimination circuit, thereby adjusting the delay time.

摘要翻译： 公开了一种延迟电路，用于至少延迟在第一和第二电平之间交替的输入信号的上升沿的定时或下降沿的定时。 延迟电路包括：（1）电荷泵，其中不同通道的第一和第二场效应晶体管串联连接; （2）与第一场效应晶体管并联连接的电容器; （3）充电电流控制电路，用于当输入信号处于第一电平时通过电荷泵的第二场效应晶体管将充电电流传送到电容器中; （4）放电电流控制电路，用于当输入信号处于第二电平时通过第一场效应晶体管释放来自电容器的放电电流; 和（5）用于基于电容器的端子电压输出规定逻辑电平的信号的识别电路。 控制电容器的充电电流和放电电流的值，以控制对鉴别电路的输入电压的斜率，从而调整延迟时间。

公开(公告)号：US4680970A

公开(公告)日：1987-07-21

申请号：US825082

申请日：1986-01-31

申请人： Toshitsugu Ueda ,  Fusao Kohsaka ,  Daisuke Yamazaki ,  Hideo Akazawa

发明人： Toshitsugu Ueda ,  Fusao Kohsaka ,  Daisuke Yamazaki ,  Hideo Akazawa

IPC分类号： G01L9/00 ,  G01L11/00

CPC分类号： G01L9/0022 ,  G01L9/0016 ,  G01L9/0033

摘要： A pressure measuring apparatus comprising a diaphragm to which pressure to be measured is applied and a resilient vibrator connected to the diaphragm, which acts to produce a signal based on its natural frequency relative to the pressure, wherein the diaphragm comprises a peripheral circumferential portion, a central fixing portion and a non-planar intermediate portion therebetween, with the central portion being connected to the vibrator and having its edge disposed at a non-perpendicular angle with respect to the vibrator area to which it is connected. The apparatus eliminates adverse influences due to initial distortion, hysteresis of the diaphragm and produces accurate measurements.

摘要翻译： 一种压力测量装置，包括施加有被测量压力的膜片和连接到所述膜片的弹性振动器，所述弹性振动器基于其相对于所述压力的固有频率产生信号，其中所述隔膜包括周向周向部分， 中央固定部分和其间的非平面中间部分，其中心部分连接到振动器并且其边缘相对于其连接的振动器区域以非垂直的角度设置。 该装置消除了由于初始失真，隔膜滞后等引起的不利影响，并产生了精确的测量。