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    • 1. 发明授权
    • Quadrature demodulator
    • 正交解调器
    • US5426669A
    • 1995-06-20
    • US077586
    • 1993-06-17
    • Yuuri YamamotoKenichi TakahashiHiroshi OhnishiYoshinori KuniedaNaoki Matsubara
    • Yuuri YamamotoKenichi TakahashiHiroshi OhnishiYoshinori KuniedaNaoki Matsubara
    • H04L7/033H04L27/233H03D3/18H04L27/06
    • H04L7/0334H04L27/2332
    • A quadrature demodulator includes a device for generating first and second reference signals having a quadrature relation with each other. A first demodulating device serves to compare phases of the first reference signal and an input modulated signal to demodulate the input modulated signal into a first binary baseband signal. A second demodulating device serves to compare phases of the second reference signal and the input modulated signal to demodulate the input modulated signal into a second binary baseband signal having a quadrature relation with the first baseband signal. A first counting device operates to count pulses of a clock signal in response to the first baseband signal. A second counting device operates to count pulses of the clock signal in response to the second baseband signal. An address signal is generated in response to the output signals of the first and second counting devices. Data representative of an absolute phase of the input modulated signal is generated in response to the address signal.
    • 正交解调器包括用于产生彼此具有正交关系的第一和第二参考信号的装置。 第一解调装置用于比较第一参考信号和输入调制信号的相位,以将输入的调制信号解调为第一二进制基带信号。 第二解调装置用于比较第二参考信号和输入调制信号的相位,以将输入调制信号解调成与第一基带信号具有正交关系的第二二进制基带信号。 第一计数装置用于响应于第一基带信号来计数时钟信号的脉冲。 第二计数装置用于响应于第二基带信号对时钟信号的脉冲进行计数。 响应于第一和第二计数装置的输出信号产生地址信号。 响应于地址信号产生表示输入调制信号的绝对相位的数据。
    • 2. 发明授权
    • Complex angle converter
    • 复角转换器
    • US5550867A
    • 1996-08-27
    • US417528
    • 1995-04-06
    • Yuuri YamamotoKenichi TakahashiHiroshi OhnishiYoshinori KuniedaNaoki Matsubara
    • Yuuri YamamotoKenichi TakahashiHiroshi OhnishiYoshinori KuniedaNaoki Matsubara
    • H04L7/033H04L27/233H04L27/06
    • H04L7/0334H04L27/2332
    • A complex angle converter includes a comparing device. The comparing device operates to derive first difference data representing a difference between predetermined reference data and data represented by a first baseband signal. The comparing device further operates to derive second difference data representing a difference between the predetermined reference data and data represented by a second baseband signal having a quadrature relation with the first baseband signal. The comparing device further operates for comparing absolute values of the first difference data and the second difference data, and for outputting a signal representative of a result of the comparing. The complex angle converter also includes a device serving to group an inversion of a highest bit of the first baseband signal and second highest and lower bits of the second baseband signal into a first set. An additional device serves to group a highest bit of the second baseband signal and second highest and lower bits of the first baseband signal into a second set. A selector operates to select one of the first set and the second set in response to the output signal of the comparing device. A decoder is included for decoding the highest bit of the first baseband signal, the highest bit of the second baseband signal, and the selected one of the first set and the second set into data representing a complex angle.
    • 复角度转换器包括比较装置。 比较装置用于导出表示预定参考数据和由第一基带信号表示的数据之间的差异的第一差分数据。 比较装置进一步操作以得出表示预定参考数据与由与第一基带信号具有正交关系的第二基带信号表示的数据之间的差异的第二差分数据。 比较装置还用于比较第一差分数据和第二差分数据的绝对值,并输出表示比较结果的信号。 复角转换器还包括用于将第一基带信号的最高位和第二基带信号的第二高位和低位的反转分组为第一组的装置。 附加设备用于将第二基带信号的最高位和第一基带信号的第二高位和低位分组成第二组。 选择器响应于比较装置的输出信号选择第一组和第二组中的一个。 包括解码器,用于将第一基带信号的最高位,第二基带信号的最高位和第一组和第二组中选定的一个译码成表示复角的数据。
    • 3. 发明授权
    • Timing signal generator
    • 定时信号发生器
    • US5703913A
    • 1997-12-30
    • US684442
    • 1996-07-19
    • Yuuri YamamotoKenichi TakahashiHiroshi OhnishiYoshinori KuniedaNaoki Matsubara
    • Yuuri YamamotoKenichi TakahashiHiroshi OhnishiYoshinori KuniedaNaoki Matsubara
    • H04L7/033H04L27/233H04L7/00
    • H04L7/0334H04L27/2332
    • A timing signal generator includes a demodulator for an input modulated signal to provide first and second baseband signals having a quadrature relation relative to each other. A converter is used to convert the first and second baseband signals into angle data representing a phase, and a calculator is used to calculate a difference between the phase represented by current angle data and the phase represented by previous angle data, preceding the current angle data by a 1-symbol interval. The calculator outputs data representative of the calculated phase difference. A further converter converts the calculator output data into a binary reference signal responsive to which of predetermined divided regions contains a point corresponding to the calculated difference data. Also included is a generator for generating a symbol timing signal in synchronism with the binary reference signal.
    • 定时信号发生器包括用于输入调制信号的解调器,以提供具有彼此正交关系的第一和第二基带信号。 A转换器用于将第一和第二基带信号转换成表示相位的角度数据,并且使用计算器来计算当前角度数据所表示的相位与由当前角度数据之前的先前角度数据表示的相位之间的差 以1符号间隔。 计算器输出表示计算出的相位差的数据。 另外的转换器将计算器输出数据转换成二进制参考信号,响应于哪个预定分割区域包含对应于所计算的差分数据的点。 还包括用于与二进制参考信号同步地产生符号定时信号的发生器。
    • 4. 发明授权
    • Access router device, mobility control system, and mobility control method
    • 接入路由器设备,移动控制系统和移动控制方法
    • US07907584B2
    • 2011-03-15
    • US11913500
    • 2006-05-16
    • Shin-ichi IsobeKatsutoshi NishidaNaoki Matsubara
    • Shin-ichi IsobeKatsutoshi NishidaNaoki Matsubara
    • H04W8/02
    • H04W8/087H04W36/0011H04W40/24H04W80/04H04W88/005
    • In a network configuration in which a mobility control node is placed in the network, a packet is forwarded from a communication partner to the mobility control node by a basic IP mobility protocol for supporting movement in a local network managed by the mobility control node, a movement of a mobile terminal device across local networks formed by mobility control nodes is achieved without adding a function to the mobile terminal device. A mobility control node to be provided to the mobile terminal device is identified by a trigger reporting a movement has been performed to the network from the mobile terminal device, and, in the case of HO across between mobility control nodes, network information before the movement is reported instead of network information to be originally reported. Thus, the mobile terminal device determines that the movement is in the same network and can continue communication without performing an address generation procedure.
    • 在其中移动性控制节点被放置在网络中的网络配置中,通过用于支持由移动性控制节点管理的本地网络中的移动的基本IP移动性协议将分组从通信伙伴转发到移动性控制节点, 实现移动终端设备跨越由移动性控制节点形成的本地网络的移动,而不增加移动终端设备的功能。 提供给移动终端设备的移动性控制节点通过触发器识别,该触发器已经从移动终端设备向网络执行移动,并且在移动控制节点之间的HO的情况下,在移动之前的网络信息 而不是最初报告的网络信息。 因此,移动终端设备确定移动在同一网络中,并且可以在不执行地址生成过程的情况下继续通信。
    • 5. 发明授权
    • Multi-vortex flowmeter
    • 多涡街流量计
    • US07614297B2
    • 2009-11-10
    • US11630413
    • 2004-09-09
    • Naoki Matsubara
    • Naoki Matsubara
    • G01F7/00
    • G01F1/3209G01F1/3245G01F1/6842G01F1/699G01F5/00G01F7/00
    • A flowmeter having a vortex type detection means with a measurement tube provided in a flow passage that allows passage of a fluid therethrough, and having a vortex generator provided in the measurement tube that is opposed to a flow of the fluid. The flowmeter also includes a vortex detector detecting a change based on a Karman vortex generated by the vortex generator, a thermal type detection means having a temperature sensor and a heating temperature sensor protruding into the flow passage, and a flow rate converter controlling a power supply amount related to heating of the heating temperature sensor for attaining a fixed difference in temperature between the temperature sensor and the heating temperature sensor and calculating a flow rate of the fluid from the power amount. The flow rate converter also calculates the flow rate of the fluid from a detection value obtained by the vortex detector.
    • 一种具有涡流型检测装置的流量计,其具有设置在允许流体通过的流动通道中的测量管,并且具有设置在所述测量管中的与所述流体相对的涡流发生器。 流量计还包括检测基于由涡流发生器产生的卡曼涡流的变化的涡流检测器,具有突出到流路中的温度传感器和加热温度传感器的热型检测装置,以及控制电源的流量转换器 与加热温度传感器的加热有关的量,以获得温度传感器和加热温度传感器之间的固定温度差,并从该功率量计算流体的流量。 流量转换器还根据由涡流检测器获得的检测值来计算流体的流量。
    • 10. 发明申请
    • Exhaust throttle valve
    • 排气节流阀
    • US20090038303A1
    • 2009-02-12
    • US12216698
    • 2008-07-09
    • Mitsuru TakeuchiNaohito SaraiKoji SakuraiNaoki Matsubara
    • Mitsuru TakeuchiNaohito SaraiKoji SakuraiNaoki Matsubara
    • F01N7/00
    • F02D9/06
    • An exhaust pressure control valve comprises a casing including a bore and a pair of first and second shaft support parts, and a valve shaft placed across the bore and rotatably supported by the shaft support parts. A first end portion of the valve shaft is arranged protruding outside the casing. A throttle valve is secured to the valve shaft inside the bore. An actuator is coupled to the first end portion to open and close the throttle valve. The second shaft support part is located in a bypass passage downstream from a bypass valve and has an opening in which a cap formed with a through hole is fitted. The inside of the second shaft support part is allowed to communicate with atmosphere through the through hole, the bypass passage, and others so that an end face of a second end portion can be subjected to atmospheric pressure.
    • 排气压力控制阀包括壳体,其包括孔和一对第一和第二轴支撑部分,以及横跨所述孔并且由所述轴支撑部分可旋转地支撑的阀轴。 阀轴的第一端部布置成突出到壳体外部。 节流阀固定在孔内的阀轴上。 致动器联接到第一端部以打开和关闭节流阀。 第二轴支撑部分位于旁通通道下游的旁通通道中,并且具有开口,在该开口中形成有通孔的盖安装在该开口中。 允许第二轴支撑部分的内部通过通孔,旁通通道等与大气连通,使得第二端部的端面可以经受大气压力。