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公开(公告)号：US06534997B1
公开(公告)日：2003-03-18
申请号：US09685826
申请日：2000-10-10
Applicant: Masakazu Horishita , Kazunari Tsubaki , Kazuyoshi Shimizu
Inventor： Masakazu Horishita , Kazunari Tsubaki , Kazuyoshi Shimizu
IPC: G01R3111
CPC classification number: H04B10/07 , H04B10/071 , H04B10/27
Abstract: Locating a fault of a transmission line in a system which performs bidirectional optical communication between a station-side device and plural subscriber devices and in which a transmission line 1 extending from the station-side device is branched by a branching/coupling device into plural transmission lines 2 each connected to the subscriber devices. The present invention provides a supervisory unit to the transmission line 1 and attenuators to respective transmission lines 2. The supervisory unit emits an optical test signal, observes a reflected signal of the test signal while changing the attenuation of the attenuators and locates the fault based on a return time and a return loss when the test signal returns as a reflected signal.
Abstract translation: 在站侧设备与多个用户设备之间执行双向光通信的系统中定位传输线路故障，并且其中从站侧设备延伸的传输线路1由分支/耦合设备分支成多个传输 线路2每个连接到订户设备。 本发明提供了一种监控单元，用于传输线1和衰减器到相应的传输线2.监控单元发射一个光学测试信号，在改变衰减器衰减的同时观察测试信号的反射信号，并根据 当测试信号作为反射信号返回时，返回时间和回波损耗。
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公开(公告)号：US5956169A
公开(公告)日：1999-09-21
申请号：US677633
申请日：1996-07-08
Applicant: Kazuyoshi Shimizu
Inventor： Kazuyoshi Shimizu
IPC: H04B10/00 , H04B10/07 , H04B10/2507
CPC classification number: H04B10/2503
Abstract: In bidirectional optical burst transmission using a single optical fiber, a signal is reliably discriminated even if reflected light is contained in a received optical signal. According to a first aspect of the invention, the received signal converted into an electrical signal is compared with a prescribed reference voltage, thereby generating a signal light identification voltage output for identifying the beginning of the signal light. According to a second aspect of the invention, a peak value and a bottom value of the received signal are held with respectively prescribed time constants, and a voltage intermediate between them is generated as a voltage output used to discriminate the signal light. According to a third object of the invention, the waveform only of the reflected light is detected and stored, and a signal light voltage output with the reflected light suppressed is generated by subtracting the stored waveform from the received signal.
Abstract translation: 在使用单个光纤的双向光突发传输中，即使反射光包含在接收的光信号中，信号也被可靠地区分开。 根据本发明的第一方面，将转换成电信号的接收信号与规定的参考电压进行比较，从而生成用于识别信号光的开始的信号光识别电压输出。 根据本发明的第二方面，接收信号的峰值和底值分别被保持为规定的时间常数，并且产生它们之间的电压作为用于区分信号光的电压输出。 根据本发明的第三个目的，仅检测和存储反射光的波形，并且通过从接收信号中减去存储的波形来产生抑制了反射光的输出的信号光电压。
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公开(公告)号：US20050097968A1
公开(公告)日：2005-05-12
申请号：US10965158
申请日：2004-10-14
Applicant: Hiroaki Ishikawa , Kazuyoshi Shimizu , Ayumi Sekine
Inventor： Hiroaki Ishikawa , Kazuyoshi Shimizu , Ayumi Sekine
Abstract: An ultrasonic flow meter for measuring a flow rate in a flow path is provided having ultrasonic sensors each of which includes a semicircular or substantially circular disk shaped transducer. Such transducers are detachably mountable on an envelope of the flow path. The thickness of the ultrasonic sensors in the direction of the length of the flow path is reduced to improve a detection resolution. A plurality of the ultrasonic sensors are mounted on the flow path while keeping a predetermined distance therebetween in a length direction of the flow path, so that the flow rate can be measured from the difference of propagation times of ultrasonic waves between the ultrasonic sensors.
Abstract translation: 提供了一种用于测量流路中的流量的超声波流量计，其具有超声波传感器，每个超声波传感器包括半圆形或大致圆形的盘形换能器。 这种换能器可拆卸地安装在流路的外壳上。 超声波传感器在流路长度方向上的厚度减小以提高检测分辨率。 多个超声波传感器安装在流路上，同时在流路的长度方向上保持预定的距离，从而可以根据超声波传感器之间的超声波的传播时间差来测量流量。
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公开(公告)号：US06782326B2
公开(公告)日：2004-08-24
申请号：US09768857
申请日：2001-01-24
Applicant: Masaki Takamoto , Akira Yamasaki , Kenzo Hosoi , Satoshi Arai , Kazuyoshi Shimizu
Inventor： Masaki Takamoto , Akira Yamasaki , Kenzo Hosoi , Satoshi Arai , Kazuyoshi Shimizu
IPC: G01F166
Abstract: A flow rate measuring apparatus capable of accurately measuring a flow rate of fluctuating fluid. A mode setting circuit selectively sets any one of a plurality of predetermined transmission modes different in transmission timing. The mode setting circuit sets any one of a first transmission mode which permits an ultrasonic wave to be transmitted at a predetermined timing for every period of a flow waveform of exhaust gas, a second transmission mode which permits an ultrasonic wave to be transmitted at a timing shifted by a predetermined time for every period of the flow waveform of the exhaust gas and a third transmission mode which permits an ultrasonic wave to be transmitted at predetermined intervals.
Abstract translation: 一种流量测量装置，能够精确地测量波动流体的流量。 模式设定电路有选择地设定发送定时中的多个预定发送模式中的任一个不同。 模式设定电路设定能够在排气的流量波形的每个周期的规定时刻发送超声波的第一发送模式中的任一个，允许在定时发送超声波的第二发送模式 在排气的流量波形的每个周期中移动了预定时间，并且允许以预定间隔传输超声波的第三传输模式。
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公开(公告)号：US5257585A
公开(公告)日：1993-11-02
申请号：US7351
申请日：1993-01-21
Applicant: Keiichi Sato , Yukio Yamagishi , Kazuyoshi Shimizu , Hiroshi Yoshida
Inventor： Keiichi Sato , Yukio Yamagishi , Kazuyoshi Shimizu , Hiroshi Yoshida
CPC classification number: F23G5/30 , F23G5/002 , F23G5/165 , F23J15/06 , F23L9/02 , F23M9/00 , Y02E20/363
Abstract: An incinerator designed so that the reaction of unburnt gas with oxygen progresses rapidly to thereby minimize the amount of unburnt gas generated therefrom. An intermediate portion of a combustion chamber is contracted in the cross-sectional direction with respect to the direction of flow of gas to thereby provide a throttling passage (14) over a predetermined distance. A part of the combustion chamber which is below the throttling passage (14) and a part of the combustion chamber which is above the passage (14) are enlarged in the cross-sectional direction to define a lower combustion chamber (13) and an upper combustion chamber (15), respectively. A first barrier (16) is disposed in the vicinity of the inlet of the throttling passage (14) across the lower combustion chamber (13) and a second barrier (17) is disposed in the vicinity of the outlet of the throttling passage (14) across the upper combustion chamber (15).
Abstract translation: 设计为使得未燃气体与氧的反应快速进行的焚化炉，从而使从其产生的未燃烧气体的量最小化。 燃烧室的中间部分在相对于气体流动方向的横截面方向上收缩，从而在预定距离上提供节流通道（14）。 在节流通道（14）下方的燃烧室的一部分和在通道（14）上方的燃烧室的一部分在横截面方向上扩大以限定下燃烧室（13）和上部 燃烧室（15）。 第一挡板（16）设置在节流通道（14）的入口附近穿过下燃烧室（13），第二阻挡件（17）设置在节流通道（14）的出口附近 ）穿过上部燃烧室（15）。
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Patent Agency Ranking
公开(公告)号：US08145067B2
公开(公告)日：2012-03-27
申请号：US12585120
申请日：2009-09-03
Applicant: Akira Nagayama , Kazuyoshi Shimizu
Inventor： Akira Nagayama , Kazuyoshi Shimizu
IPC: H04B10/04
CPC classification number: G02F1/0123 , H04B10/50572 , H04B10/50575
Abstract: An optical transmitter includes a light source that outputs light superposed with a pilot signal having a predetermined frequency; an optical modulating unit that modulates the light from the light source according to an input electric signal; a detecting unit that detects a high-output-side maximum value of signal light output from the optical modulating unit, a fluctuation width of the high-output-side maximum value, and a fluctuation width of a low-output-side minimum value; a bias-potential adjusting unit that adjusts a bias potential of an electric signal to be input to the optical modulating unit based on the detected maximum value; and an amplitude adjusting unit that adjusts an amplitude of the electric signal to be input to the optical modulating unit based on the fluctuation width of the high-output-side maximum value and the fluctuation width of the low-output-side minimum value.
Abstract translation: 光发射机包括输出与具有预定频率的导频信号叠加的光的光源; 光调制单元，其根据输入电信号调制来自光源的光; 检测单元，其检测从光调制单元输出的信号光的高输出侧最大值，高输出侧最大值的波动宽度和低输出侧最小值的波动宽度; 偏置电位调整单元，其基于检测到的最大值来调整要输入到所述光调制单元的电信号的偏置电位; 以及幅度调整单元，其基于高输出侧最大值的波动宽度和低输出侧最小值的波动宽度来调整要输入到光调制单元的电信号的幅度。
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公开(公告)号：US07630651B2
公开(公告)日：2009-12-08
申请号：US11357116
申请日：2006-02-21
Applicant: Kazuyoshi Shimizu , Akira Nagayama
Inventor： Kazuyoshi Shimizu , Akira Nagayama
CPC classification number: H04B10/505 , H04B10/50575 , H04B10/564
Abstract: An optical transmitter includes: a modulating unit that modulates an optical signal based on an electric signal; a first detecting unit that detects a first variation width of a maximum output of the modulated optical signal; a second detecting unit that detects a second variation width of a minimum output of the modulated optical signal; a comparing unit that performs a comparison of the first variation width and the second variation width; and an adjusting unit that adjusts a bias potential of the electric signal based on a result of the comparison.
Abstract translation: 光发射机包括：调制单元，用于根据电信号调制光信号; 第一检测单元，其检测调制光信号的最大输出的第一变化幅度; 第二检测单元，其检测调制光信号的最小输出的第二变化幅度; 执行第一变化宽度和第二变化宽度的比较的比较单元; 以及调整单元，其基于比较的结果来调整电信号的偏置电位。
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公开(公告)号：US07358712B2
公开(公告)日：2008-04-15
申请号：US11209644
申请日：2005-08-24
Applicant: Kazuyoshi Shimizu , Akira Nagayama
Inventor： Kazuyoshi Shimizu , Akira Nagayama
IPC: G05F5/00
CPC classification number: H05B41/2856 , Y10S323/908
Abstract: A power supply control circuit includes: a conducting part configured to be controllable in its a conducting amount for conducting a power supply current to a load circuit;a current change ratio detecting part detecting a change rate of the power supply current supplied to the load circuit; and a control part controlling the conducting amount of the conducting part according to the change rate of the power supply current detected by the current change detecting part, wherein: the control part carries out feedback control of reducing an increasing rate of the conducting part as the power supply current change rate is larger.
Abstract translation: 电源控制电路包括：导电部，被配置为可控制的导电量，用于向负载电路传导电源电流; 检测提供给负载电路的电源电流的变化率的电流变化率检测部; 以及控制部，其根据由电流变化检测部检测出的电源电流的变化率来控制导通部的导通量，其中：所述控制部进行将导通部的增加率减小为 电源电流变化率较大。
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公开(公告)号：US20060208668A1
公开(公告)日：2006-09-21
申请号：US11209644
申请日：2005-08-24
Applicant: Kazuyoshi Shimizu , Akira Nagayama
Inventor： Kazuyoshi Shimizu , Akira Nagayama
IPC: H05B39/04
CPC classification number: H05B41/2856 , Y10S323/908
Abstract: A power supply control circuit includes: a conducting part configured to be controllable in its a conducting amount for conducting a power supply current to a load circuit; a current change ratio detecting part detecting a change rate of the power supply current supplied to the load circuit; and a control part controlling the conducting amount of the conducting part according to the change rate of the power supply current detected by the current change detecting part, wherein: the control part carries out feedback control of reducing an increasing rate of the conducting part as the power supply current change rate is larger.
Abstract translation: 电源控制电路包括：导电部，被配置为可控制的导电量，用于向负载电路传导电源电流; 检测提供给负载电路的电源电流的变化率的电流变化率检测部; 以及控制部，其根据由电流变化检测部检测出的电源电流的变化率来控制导通部的导通量，其中：所述控制部进行将导通部的增加率减小为 电源电流变化率较大。
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公开(公告)号：US08416004B2
公开(公告)日：2013-04-09
申请号：US13314642
申请日：2011-12-08
Applicant: Masaru Akizawa , Kazuyoshi Shimizu
Inventor： Masaru Akizawa , Kazuyoshi Shimizu
IPC: H03K5/08
CPC classification number: G06F1/30 , G06F1/266 , H02H9/001 , H03K17/162 , H03K17/163
Abstract: A circuit module includes: control object circuits which start operations when a power supply voltage reaches a target value; a current sink circuit which consumes a current supplied thereto; and a power supply activation control unit which increases the current flowing into the current sink circuit at a predetermined rate before starting the operations of the control object circuits and which starts the operations of the control object circuits and simultaneously blocks the supply of the current to the current sink circuit in a case where an amount of the current flowing into the current sink circuit is equivalent to an amount of current to be increased by starting the operations of the control object circuits when the power supply voltage reaches the target value.
Abstract translation: 电路模块包括：当电源电压达到目标值时开始操作的控制对象电路; 消耗提供给其的电流的电流吸收电路; 以及电源启动控制单元，其在开始控制对象电路的操作之前以预定速率增加流入当前宿电路的电流，并且开始控制对象电路的操作，同时阻止向 在电源电压达到目标值的情况下，流入电流吸收电路的电流量等于通过开始控制对象电路的动作而增加的电流量的情况下的电流吸收电路。
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