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1. 发明授权

US06844517B2 Power supply device for electric discharge machine 失效
标题翻译：放电机电源装置
公开(公告)号：US06844517B2
公开(公告)日：2005-01-18
申请号：US10735830
申请日：2003-12-16
申请人： Masao Murai , Akiyoshi Kawahara , Akihiro Sakurai , Yasuo Nakashima
发明人： Masao Murai , Akiyoshi Kawahara , Akihiro Sakurai , Yasuo Nakashima
IPC分类号： B23H1/02
CPC分类号： B23H1/022
摘要： A power supplying device for an electric discharge machine prevents electric discharge by a voltage from a subsidiary power supply circuit during a delay time from generation of the electric discharge to a rise of a voltage from a main power supply circuit. A parallel circuit, of a current reducing resistor and a capacitor, is provided in series in the subsidiary power supply circuit. A controller turns on the subsidiary power supply circuit to apply a voltage between a first electrode and a workpiece, as a second electrode, to generate an electric discharge therebetween, electricity charging the capacitor flowing between the electrodes to maintain the electric discharge even if an electric discharge current oscillates. The controller further turns on a main power supply circuit to supply a machining current in response to detection of the electric discharge and the current reducing resistor suppresses any leakage current during the application of the voltage from the subsidiary power supply circuit.
摘要翻译：放电机的供电装置在从放电产生的延迟时间到来自主电源电路的电压的上升期间，防止来自辅助电源电路的电压的放电。在辅助电源电路中串联提供电流减小电阻器和电容器的并联电路。控制器接通辅助电源电路以在第一电极和工件之间施加电压作为第二电极，以在其间产生放电，对在电极之间流动的电容器进行充电，以便即使电气放电电流振荡。控制器进一步接通主电源电路以响应于放电的检测而提供加工电流，并且电流降低电阻器在施加来自辅助电源电路的电压期间抑制任何漏电流。

2. 发明授权

US07323654B2 Electric discharge machining apparatus 失效
标题翻译：放电加工机
公开(公告)号：US07323654B2
公开(公告)日：2008-01-29
申请号：US11498838
申请日：2006-08-04
申请人： Masao Murai , Yasuo Nakashima
发明人： Masao Murai , Yasuo Nakashima
IPC分类号： B23H1/00 , B23H7/18
CPC分类号： B23H1/024 , B23H1/022 , B23H7/16 , B23H7/18 , B23H7/30
摘要： An electric discharge machining apparatus capable of precisely detecting the electric discharge in a case of performing machining by minute machining energy such as in finish machining. A voltage is applied between a tool electrode and a workpiece by repeating ON/OFF of a switching element to charge a stray capacitance between the electrodes to cause electric discharge between the electrodes by the charged voltage. The electric discharge between the electrodes in the electric discharge machining by the minute machining energy is detected. The current between the electrodes is detected by integrating an output of a sensor coil. An offset component superposed in the output of the integrator by a low-pass filter is extracted. The extracted offset component is eliminated from the output of the integrator by a differential amplifier. An output of the differential amplifier is compared with a reference value to detect the electric discharge.
摘要翻译：一种放电加工装置，其能够通过精加工等微细加工能进行加工的情况下，精确地检测放电。通过重复开关元件的ON / OFF来对工具电极和工件施加电压，以对电极之间的杂散电容进行充电，以通过充电电压在电极之间产生放电。检测通过微小加工能量的放电加工中的电极之间的放电。通过对传感器线圈的输出进行积分来检测电极之间的电流。提取通过低通滤波器叠加在积分器的输出中的偏移分量。通过差分放大器从积分器的输出中消除所提取的偏移分量。将差分放大器的输出与参考值进行比较以检测放电。

3. 发明申请

US20070034609A1 Electric discharge machining apparatus 失效
标题翻译：放电加工机
公开(公告)号：US20070034609A1
公开(公告)日：2007-02-15
申请号：US11498838
申请日：2006-08-04
申请人： Masao Murai , Yasuo Nakashima
发明人： Masao Murai , Yasuo Nakashima
IPC分类号： B23H7/18
CPC分类号： B23H1/024 , B23H1/022 , B23H7/16 , B23H7/18 , B23H7/30
摘要： An electric discharge machining apparatus capable of precisely detecting the electric discharge in a case of performing machining by minute machining energy such as in finish machining. A voltage is applied between a tool electrode and a workpiece by repeating ON/OFF of a switching element to charge a stray capacitance between the electrodes to cause electric discharge between the electrodes by the charged voltage. The electric discharge between the electrodes in the electric discharge machining by the minute machining energy is detected. The current between the electrodes is detected by integrating an output of a sensor coil. An offset component superposed in the output of the integrator by a low-pass filter is extracted. The extracted offset component is eliminated from the output of the integrator by a differential amplifier. An output of the differential amplifier is compared with a reference value to detect the electric discharge.
摘要翻译：一种放电加工装置，其能够通过精加工等微细加工能进行加工的情况下，精确地检测放电。通过重复开关元件的ON / OFF来对工具电极和工件施加电压，以对电极之间的杂散电容进行充电，以通过充电电压在电极之间产生放电。检测通过微小加工能量的放电加工中的电极之间的放电。通过对传感器线圈的输出进行积分来检测电极之间的电流。提取通过低通滤波器叠加在积分器的输出中的偏移分量。通过差分放大器从积分器的输出中消除所提取的偏移分量。将差分放大器的输出与参考值进行比较以检测放电。

4. 发明授权

US07054712B2 Wire contact/noncontact boundary position detecting apparatus of wire cut discharge machine 有权
标题翻译：线切割放电机的线接触/非接触边界位置检测装置
公开(公告)号：US07054712B2
公开(公告)日：2006-05-30
申请号：US10463342
申请日：2003-06-18
申请人： Masao Murai , Akiyoshi Kawahara , Akihiro Sakurai , Yasuo Nakashima
发明人： Masao Murai , Akiyoshi Kawahara , Akihiro Sakurai , Yasuo Nakashima
IPC分类号： B23H7/02 , G06F19/00
CPC分类号： B23H7/065 , B23H2500/20
摘要： Supply of a wire electrode, application of a detection voltage, and binarization and sampling of the detection voltage are started, so as to start advance of the wire electrode from the position A toward a workpiece. The position of the wire electrode when a sampling value (low level) is detected for the first time is designated as a position B, and the wire electrode is advanced from this position by a predetermined distance P1, and is stopped at a position C. Retreat of the wire electrode is started from the position C, and a position Q where the sampling value has changed from the high level to the low level is stored as a contact/noncontact boundary position. Further, retreat of the wire electrode is continued, and the wire electrode is stopped at a predetermined separating position D, to thereby finish the processing.
摘要翻译：开始提供线电极，施加检测电压以及检测电压的二值化和采样，以便使线电极从位置A朝向工件开始前进。当第一次检测到采样值（低电平）时，线电极的位置被指定为位置B，并且线电极从该位置前进预定距离P1，并停止在位置C. 从位置C开始线电极的退避，并且采样值从高电平变为低电平的位置Q被存储为接触/非接触边界位置。此外，线电极的后退继续，线电极停止在预定的分离位置D，从而完成处理。

5. 发明授权

US5521921A Data communications method and apparatus 失效
标题翻译：数据通信方法及装置
公开(公告)号：US5521921A
公开(公告)日：1996-05-28
申请号：US404271
申请日：1995-03-14
申请人： Masao Murai
发明人： Masao Murai
IPC分类号： H04L29/08 , H04L12/64 , H04L29/06 , H04M11/06 , H04J15/00 , H04J3/16
CPC分类号： H04L12/6418 , H04L29/06 , H04L2012/6459 , H04L2012/6478
摘要： Voice data are enclosed between a header code and tail code to form a voice frame which is interposed into an ordinary HDLC frame for transmission as a composite frame. The header code is a code that does not occur in an ordinary HDLC frame and can therefore be reliably detected on the receiving side. During transmission of voice data, the clocks on the HDLC transmitting and receiving sides are stopped, thereby temporarily halting HDLC transmission.
摘要翻译：语音数据包含在标题代码和尾码之间，以形成一个语音帧，该语音帧插入到普通HDLC帧中，作为复合帧进行传输。标题代码是在普通HDLC帧中不发生的代码，因此可以在接收侧可靠地检测。在传输语音数据期间，HDLC发送和接收侧的时钟停止，暂时停止HDLC传输。

6. 发明授权

US4586162A Bit pattern check circuit 失效
标题翻译：位模式检查电路
公开(公告)号：US4586162A
公开(公告)日：1986-04-29
申请号：US566458
申请日：1983-12-28
申请人： Masao Murai
发明人： Masao Murai
IPC分类号： G06F7/04 , G06F7/02 , G06F11/00
CPC分类号： G06F7/02
摘要： In a bit pattern check circuit, there are provided three memory devices and a bit pattern input is divided into portions of the number same as that of the memory devices. One portion of the divided bit pattern input is stored in the first memory device. The second and third memory devices are inputted with the other portions of the divided bit pattern and outputs of preceding memory devices respectively. The content of the third or last stage memory device is outputted through an OR gate circuit.
摘要翻译：在位模式检查电路中，提供了三个存储器件，并且位模式输入被分成与存储器件相同数量的部分。分割位图案输入的一部分存储在第一存储器件中。第二和第三存储器件分别输入分割位模式的其他部分和先前存储器件的输出。第三或最后一级存储器件的内容通过或门电路输出。

7. 发明授权

US08432116B2 Torque motor driving device for wire cut electrical discharge machines 有权
标题翻译：用于线切割放电机的扭矩电机驱动装置
公开(公告)号：US08432116B2
公开(公告)日：2013-04-30
申请号：US13038437
申请日：2011-03-02
申请人： Tomoyuki Furuta , Akiyoshi Kawahara , Masao Murai
发明人： Tomoyuki Furuta , Akiyoshi Kawahara , Masao Murai
IPC分类号： H02P7/00 , B23H7/00 , G05B11/28
CPC分类号： B23H7/14 , B23H7/26 , B23H11/00 , H02M5/293 , H02P23/03
摘要： In a torque motor driving device for wire cut electrical discharge machines, a voltage waveform rectified by a full-wave rectifying circuit, not using a high-capacitance electrolytic capacitor, is applied as an AC voltage to a single-phase torque motor by a bridge circuit including semiconductor switches. A PWM signal whose duty is adjusted so that the current flowing through the torque motor matches an instructed value is generated and the generated PWM signal is used for the operation of the bridge circuit.
摘要翻译：在用于线切割放电机的扭矩电动机驱动装置中，通过不使用高电容电解电容器的全波整流电路整流的电压波形作为交流电压施加到单相转矩电动机的桥上电路包括半导体开关。产生调节占空比的PWM信号，使得流过转矩电动机的电流与指示值相匹配，并且生成的PWM信号用于桥式电路的操作。

8. 发明授权

US07764601B2 Switching between layer 2 switches as destination of IP packets from cards 有权
标题翻译：在第2层交换机之间切换为来自卡的IP分组的目的地
公开(公告)号：US07764601B2
公开(公告)日：2010-07-27
申请号：US11291826
申请日：2005-12-02
申请人： Masao Murai
发明人： Masao Murai
IPC分类号： H04L12/66
CPC分类号： H04L43/0817 , H04L43/16
摘要： A layer 2 switch switching circuit has two layer 2 switches of a redundant configuration and a plurality of cards for sending IP packets to each other through either one of the two layer 2 switches. Each of the two layer 2 switches has a state signal delivery unit for delivering a state signal representing whether the layer 2 switch is in an active state or a standby state. Each of the cards has a card controller for monitoring states of the two layer 2 switches based on state signals sent respectively from the two layer 2 switches, and switching between the two layer 2 switches as a destination of IP packets based on the monitored states.
摘要翻译：第二层交换机切换电路具有冗余配置的两层二层交换机和用于通过两层二层交换机之一彼此发送IP分组的多个卡。两层2交换机中的每一个具有状态信号传送单元，用于传送表示层2交换机是处于活动状态还是待机状态的状态信号。每个卡都具有一个卡控制器，用于基于分别从两个层2交换机发送的状态信号监视两层交换机的状态，并且基于所监视的状态在两个二层交换机之间切换为IP分组的目的地。

9. 发明授权

US07148442B2 Power supply device for electric discharge machining 失效
标题翻译：放电加工用电源装置
公开(公告)号：US07148442B2
公开(公告)日：2006-12-12
申请号：US11068845
申请日：2005-03-02
申请人： Masao Murai , Akiyoshi Kawahara
发明人： Masao Murai , Akiyoshi Kawahara
IPC分类号： B23H1/02 , G05F1/40
CPC分类号： B23H1/022 , B23H7/04 , B23H2300/20
摘要： An electric-discharge-machining power supply device in which energy loss is hardly produced and a charge voltage of a capacitor is easily controlled. When a switching element SW1 is turned on, a capacitor C is charged via an inductor L. When the voltage Vc of the charged capacitor exceeds the voltage of a direct-current power source E, a current is returned to the power source E via a diode D2. When the switching element SW1 is turned off, energy stored in the inductor L flows from the inductor L through the diode D2, the power source E and the diode D1, so that the voltage Vc of the capacitor C is kept at the power source voltage. When a switching element SW2 is turned on, the voltage of the capacitor is applied between an electrode and a workpiece.
摘要翻译：能够容易地控制能量损失几乎不产生并且电容器的充电电压的放电加工电源装置。当开关元件SW1导通时，经由电感器L对电容器C进行充电。当充电电容器的电压Vc超过直流电源E的电压时，电流通过二极管D 2。当开关元件SW 1截止时，存储在电感器L中的能量从电感器L流过二极管D 2，电源E和二极管D1，使得电容器C的电压Vc保持在电源电压。当开关元件SW 2导通时，电容器的电压被施加在电极和工件之间。

10. 发明申请

US20080261609A1 METHOD OF ALLOCATING RESOURCES IN A RADIO BASE STATION APPARATUS 审中-公开
标题翻译：无线电基站设备分配资源的方法
公开(公告)号：US20080261609A1
公开(公告)日：2008-10-23
申请号：US12055129
申请日：2008-03-25
申请人： Masao Murai , Kouji Yajima
发明人： Masao Murai , Kouji Yajima
IPC分类号： H04Q7/20
CPC分类号： H04W72/04 , H04W88/08
摘要： A method of allocating resources in a radio base station apparatus is disclosed. A call processing controller, upon receipt of a call connection request from a mobile terminal, multicasts a resource allocation request to each signal processing card in a signal processor. Each signal processing card that has received the resource allocation request, searches resources in the respective card managed by each signal processing card for unused resources and transmits a resource allocation response message to the call processing controller that is indicative of whether the resources can be allocated or not. The call processing controller transmits a resource allocation message to the signal processing card that has transmitted the resource allocation response message which was first received by said call processing controller, and which indicates that the resource can be allocated, and causes the signal processing card to allocate the resources.
摘要翻译：公开了一种在无线基站装置中分配资源的方法。呼叫处理控制器在接收到来自移动终端的呼叫连接请求时，向信号处理器中的每个信号处理卡多播资源分配请求。已经接收到资源分配请求的每个信号处理卡，搜索由每个信号处理卡管理的用于未使用资源的相应卡中的资源，并向呼叫处理控制器发送指示资源是否可以被分配的资源分配响应消息，或者不。呼叫处理控制器向发送了由所述呼叫处理控制器首先接收到的资源分配响应消息的信号处理卡发送资源分配消息，并且指示资源可以被分配，并且使信号处理卡分配资源。

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