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    • 1. 发明授权
    • Doppler radar speed detecting method and apparatus therefor
    • 多普勒雷达速度检测方法及装置
    • US5016017A
    • 1991-05-14
    • US447905
    • 1989-12-08
    • Masao KoderaKunihiko SasakiSeishin MikamiJyunshi Utsu
    • Masao KoderaKunihiko SasakiSeishin MikamiJyunshi Utsu
    • G01S15/58G01S13/60
    • G01S13/60
    • A Doppler radar speed detecting method in which periods of a Doppler signal are measured within a predetermined sampling time, and frequency data corresponding to the thus obtained period data are obtained. Upper and lower limit values are set based on the previous Doppler frequency F(k-1). The frequency data are compared with these limit values. Frequency data within a low region lower than the lower limit value, and intermedaite region between the lower and upper limit values, and a high region higher than the upper limit value are respectively counted in accordance with the comparison. Further, for the frequency data between the lower and upper limits, an integrated value of differences between these data and the previous Doppler frequency is obtained. From these integrated value and the numbers of frequency data, the change from the previous to the present Doppler frequency is calculated. By adding this change and the previous Doppler frequency together, the present Doppler frequency is obtained.
    • 一种多普勒雷达速度检测方法,其中在预定采样时间内测量多普勒信号的周期,并且获得与由此获得的周期数据相对应的频率数据。 上下限值基于先前的多普勒频率F(k-1)来设定。 频率数据与这些极限值进行比较。 根据比较,分别对低于下限值的低区域内的频率数据和下限值和上限值之间的中间区域以及高于上限值的高区域进行计数。 此外,对于下限和上限之间的频率数据,获得这些数据与先前多普勒频率之间的差的积分值。 从这些积分值和频率数据的数量,计算从先前到现在的多普勒频率的变化。 通过将该改变和先前的多普勒频率相加,获得当前的多普勒频率。
    • 3. 发明授权
    • Variable reactance circuit for microwave or millimeter wave band and
variable matching circuit using variable reactance circuit
    • 用于微波或毫米波段的可变电抗电路和使用可变电抗电路的可变匹配电路
    • US5343172A
    • 1994-08-30
    • US997305
    • 1992-12-23
    • Junsi UtsuSeishin MikamiMasao Kodera
    • Junsi UtsuSeishin MikamiMasao Kodera
    • H03F3/60H03H11/28H03H11/30H03H11/48H03H7/38H03F3/16
    • H03F1/56H03H11/30
    • Series reactance elements constituted by capacitors are connected to an input side corresponding to the gate electrode of an amplifying FET and an output side corresponding to the drain electrode of the amplifying FET, respectively. Parallel variable reactance circuits are connected to the input and output sides, respectively. Each variable reactance circuit includes a FET, where the source electrodes of the FET are connected to the input and output sides through MIM capacitors, respectively. Additionally, drain electrodes of the FETs are grounded through inductive loads which are constituted by spiral inductors, respectively. The source electrodes of the FETs constituting the variable reactance circuits are grounded through choke coils, respectively. The drain electrodes of the FETs receive control bias voltages through the choke coils, respectively. In this case, each of the resistive components of the spiral inductors is set to have a value which can cancel the negative resistive component of the corresponding FET.
    • 由电容器构成的串联电抗元件分别连接到与放大FET的栅电极对应的输入侧和与放大FET的漏电极对应的输出侧。 并联可变电抗电路分别连接到输入和输出侧。 每个可变电抗电路包括FET,其中FET的源电极分别通过MIM电容器连接到输入和输出侧。 此外,FET的漏极分别通过由螺旋电感器构成的感性负载接地。 构成可变电抗电路的FET的源电极分别通过扼流线圈接地。 FET的漏电极分别通过扼流线圈接收控制偏置电压。 在这种情况下,螺旋电感器的电阻分量中的每一个被设定为具有能够抵消对应的FET的负电阻分量的值。
    • 4. 发明授权
    • Circuit for stabilizing RF amplifier
    • 用于稳定RF放大器的电路
    • US5406224A
    • 1995-04-11
    • US111120
    • 1993-08-24
    • Seishin MikamiMasao KoderaJunshi Utsu
    • Seishin MikamiMasao KoderaJunshi Utsu
    • H03F1/08H03F3/193H03F3/60H03F3/16H03F3/191
    • H03F1/56H03F1/086H03F3/1935
    • A high-frequency amplifier has a semiconductor element for amplifying a high-frequency signal, an input matching circuit connected to an input side of the semiconductor element, and an output matching circuit connected to an output side of the semiconductor element. A stabilizing circuit is connected to at least one of a signal input path between the input matching circuit and the semiconductor element, and a signal output path between the semiconductor element and the output matching circuit. The stabilizing circuit includes a first element having a first end which is short-circuited with respect to a high frequency, a parallel resonant circuit connected in series with a second end of the first element and performing parallel resonance at an operating frequency of the high-frequency amplifier, and a second element connected to a side of the parallel resonant circuit which is opposite to the first element. Values of the first element and the second element are chosen so that an admittance of the high-frequency amplifier which occurs at a frequency of possible oscillation of the high-frequency amplifier will be within a constant-conductance circle in a Smith chart which denotes a stable condition of the high-frequency amplifier.
    • 高频放大器具有用于放大高频信号的半导体元件,连接到半导体元件的输入侧的输入匹配电路和连接到半导体元件的输出侧的输出匹配电路。 稳定电路连接到输入匹配电路和半导体元件之间的信号输入路径中的至少一个以及半导体元件和输出匹配电路之间的信号输出路径。 稳定电路包括第一元件,第一元件具有相对于高频短路的第一端,与第一元件的第二端串联连接的并联谐振电路,并以高频率的工作频率执行并联谐振, 频率放大器和连接到与第一元件相对的并联谐振电路的一侧的第二元件。 选择第一元件和第二元件的值,使得在高频放大器的可能振荡的频率处出现的高频放大器的导纳将在史密斯圆图中位于恒定电导圈内,该史密斯圆图表示 高频放大器的稳定状态。
    • 5. 发明授权
    • Planar array antenna
    • 平面阵列天线
    • US4893129A
    • 1990-01-09
    • US284730
    • 1988-12-15
    • Masao KoderaSeishin Mikami
    • Masao KoderaSeishin Mikami
    • G01S7/02H01Q13/26H01Q21/00H01Q21/06H01Q21/08H01Q21/22
    • H01Q21/065H01Q21/0075
    • In a planar array antenna in which radio frequency power fed by a feeder line is radiated from a plurality of radiation elements disposed in a planar state on one surface of a dielectric substrate on the other surface of which the feeder line is disposed, the feeder line has a first feeder part and a second feeder part. The first feeder part is spaced apart by a predetermined distance from the marginal contour of one of the radiation elements in the planar direction of the dielectric substrate, while the second feeder part is located within the width of the marginal contour of another one of the radiation elements and directly beneath the latter radiation element, and the second feeder part is divided into two parts with respective ends thereof confronting each other, the power coupling coefficient between the second feeder part and said another one radiation element is selected to be larger than that between the first feeder part and said one of the radiation elements, thereby making the planar array antenna operate with high radiation efficiency and small side lobes.
    • 在平面阵列天线中,馈电线路所馈送的射频功率是从设置在平面状态的多个辐射元件辐射在介质基片的一个表面上的另一个表面上放置馈电线的馈电线 具有第一馈送部分和第二馈送部分。 第一馈电部分在电介质基板的平面方向上与辐射元件之一的边缘轮廓隔开预定的距离,而第二馈电部分位于另一个辐射的边缘轮廓的宽度内 并且第二馈送部分被分成两部分,其相应的端部彼此面对,第二馈送部分和所述另一个辐射元件之间的功率耦合系数被选择为大于第二馈送部分之间的功率耦合系数 第一馈电部分和所述一个辐射元件,从而使得平面阵列天线以高辐射效率和小的旁瓣工作。
    • 6. 发明授权
    • Ultrasonic transducer
    • 超声波换能器
    • US4636997A
    • 1987-01-13
    • US697006
    • 1985-01-31
    • Keiichiro ToyamaMasao KoderaKunihiko Sasaki
    • Keiichiro ToyamaMasao KoderaKunihiko Sasaki
    • H04R1/34B60Q1/52G01S7/521G01S15/93G10K11/28H04R1/20
    • G01S15/931B60Q9/008G01S7/521G10K11/28Y10S367/909
    • An ultrasonic transducer comprises a cylindrical housing embedded within a rear bumper of a vehicle and opening backward, a reflecting plate having a parabolic reflecting surface provided within the cylindrical housing along a closed end thereof and facing an open end thereof, and an ultrasonic vibrator provided in an upper wall of the housing at the focus of the reflecting plate for emitting and receiving ultrasonic waves. The ultrasonic transducer transmits ultrasonic waves behind the vehicle and receives ultrasonic waves reflected from an obstacle. The ultrasonic transducer further comprises a projecting member provided on the inner wall of the housing along the open end thereof for dispersing and cancelling the ultrasonic waves entering the housing at angles with respect to the axis of the housing. The projecting member has a smoothly curving cross section having a radius of substantially one fourth to five times the wavelength of the ultrasonic waves emitted by the ultrasonic vibrator.
    • 一种超声波换能器包括嵌入在车辆的后保险杠内并向后打开的圆柱形壳体,反射板具有抛物面反射表面,该抛物面反射表面沿其封闭端设置在圆柱形壳体内并面向其开口端;以及超声波振动器, 在反射板的焦点处的壳体的上壁用于发射和接收超声波。 超声波换能器在车辆后方传递超声波,接收从障碍物反射的超声波。 超声波换能器还包括沿着开口端设置在壳体的内壁上的突出构件,用于以相对于壳体的轴线成角度分散和抵消进入壳体的超声波。 突出构件具有平滑弯曲的横截面,该横截面的半径大致是由超声波振动器发射的超声波的波长的四分之一至五倍。
    • 7. 发明授权
    • Energy supply system to robot within pipe
    • 管道内机器人供能系统
    • US5304899A
    • 1994-04-19
    • US936385
    • 1992-08-28
    • Kunihiko SasakiMasao KoderaTadashi Hattori
    • Kunihiko SasakiMasao KoderaTadashi Hattori
    • B25J7/00B25J19/00B61B13/10B62D57/024B81B7/02H01P1/16H02J17/00
    • H02J17/00
    • A system for supplying energy to a microrobot disposed within a piping system for inspection or repair. The system comprises a microwave transmission section for transmitting as energy a microwave to the robot within the piping system. The microwave transmission section is arranged to transmit the microwave having a frequency equal to or higher than a frequency determined in correspondence with an inner diameter of a pipe of the piping system in which the microrobot is disposed. The microrobot receives the transmitted microwave to convert it into an electric power for operation. This arrangement can ensure a smooth operation of the microrobot within a small-sized pipe because the microrobot is not connected to the transmission section through an electric connection.
    • 用于向设置在管道系统内的微型机器供给能量以供检查或修理的系统。 该系统包括微波传输部分,用于在管道系统内作为能量微波传输到机器人。 微波传输部件被布置成传输具有等于或高于与设置有微型机器人的管道系统的管道的内径相对应地确定的频率的频率的微波。 微型摄像机接收传输的微波,将其转换成电力进行操作。 这种布置可以确保微型机器在小尺寸管道内的平稳运行,因为微型机身未通过电气连接连接到变速器部分。
    • 8. 发明授权
    • Microwave probe and rotary body detecting apparatus using the same
    • 微波探头和使用其的旋转体检测装置
    • US4700127A
    • 1987-10-13
    • US729355
    • 1985-05-01
    • Kunihiko SasakiMasao KoderaSeizi HuzinoTakeshi Tanaka
    • Kunihiko SasakiMasao KoderaSeizi HuzinoTakeshi Tanaka
    • G01R1/067H01P7/06F03B15/00G01R27/04
    • G01R1/06772H01P7/06
    • A microwave probe has a cylindrical support made of stabilized zirconia being excellent in heat insulation, and the cylindrical support is threadably installed at a partitioning wall to partition an atmosphere of high temperature. The support is provided at the center with a through hole, and an antenna for transmitting or receiving microwave is installed at one opening of the through hole positioning at outside of the partitioning wall, and a metal ring member is installed at other opening of the through hole positioning within the partitioning wall. The transmitting and receiving antenna and the ring member are fixed to respective openings by a ceramic adhesive which is filled in the through hole and excellent in heat insulation. A part of the ring member projects in the atmosphere. A rotary body breakage detecting apparatus has the microwave probe installed at a cabinet wall to cover a wing body rotating in an atmosphere of high temperature, and a microwave oscillator and a microwave detector are connected to the probe through a circulator. A breakage detecting circuit is connected to the microwave detector. The breakage detecting circuit detects that peak value of the receiving signal outputted from the detector (the signal pulsating with rotation of the wing body) varies beyond a prescribed range, and generates signal informing the breakage of the wing body.
    • 微波探针具有由绝热性优异的稳定化氧化锆制成的圆筒状支撑体,圆筒状支撑体螺纹安装在分隔壁上以分隔高温气氛。 在中心处设置有通孔,并且用于发送或接收微波的天线安装在位于分隔壁外侧的通孔的一个开口处,金属环构件安装在通孔的另一个开口处 孔内定位在分隔壁内。 发射和接收天线和环形构件通过填充在通孔中的陶瓷粘合剂固定到相应的开口,并且绝热性优异。 环形成员的一部分在大气中投射。 旋转体破损检测装置具有安装在柜壁上的微波探头以覆盖在高温环境中旋转的翼体,并且微波振荡器和微波检测器通过循环器连接到探针。 断路检测电路连接到微波检测器。 破损检测电路检测从检测器输出的接收信号的峰值(与机体的旋转搏动的信号)超过规定范围,产生通知翼体断裂的信号。
    • 9. 发明授权
    • Vehicle approach sensing apparatus
    • 车辆接近感测装置
    • US4694296A
    • 1987-09-15
    • US711046
    • 1985-03-12
    • Kunihiko SasakiMasao KoderaAkira Kuno
    • Kunihiko SasakiMasao KoderaAkira Kuno
    • B60Q1/52G01S15/93G08G1/16G08G1/00G01S13/00
    • G01S15/931B60Q1/525B60Q9/008G08G1/166Y10S367/909
    • An apparatus capable of sensing sudden approach of a succeeding vehicle and emitting an alarm, while being free from malfunction that may otherwise be caused by the noise from the succeeding vehicle which has approached at a normal speed and stopped in the proximity. The sensing apparatus includes a transmitter disposed in a rear bumper of a vehicle for transmitting ultrasonic waves toward a succeeding vehicle; a receiver disposed in the rear bumper for receiving the ultrasonic waves reflected from the succeeding vehicle; a circuit for detecting the approach speed of the succeeding vehicle from the difference between the frequencies of the reflected waves and the transmitted waves, and generating an alarm signal when the detected approach speed has exceeded a predetermined value; a circuit for detecting the approach distance of the succeeding vehicle at a normal speed from the signal strength of the reflected ultrasonic waves, and interrupting the action of the ultrasonic transmitter and receiver when the detected distance has become shorter than a predetermined value; and an alarm activated in response to the alarm signal and giving a warning of danger to drivers of both the apparatus-installed vehicle and the succeeding one.
    • 一种能够感测到随后的车辆的突然接近并发出警报的装置,同时没有可能由于以正常速度接近而停止在接近处的后续车辆的噪音引起的故障。 感测装置包括:发射机,设置在车辆的后保险杠中,用于向后续车辆发射超声波; 设置在后保险杠中的接收器,用于接收从后续车辆反射的超声波; 用于根据反射波和发射波的频率之间的差异检测后续车辆的进近速度的电路,以及当检测到的进近速度已经超过预定值时产生报警信号; 电路,用于根据反射的超声波的信号强度检测正常速度的后续车辆的接近距离,并且当检测到的距离变得短于预定值时中断超声波发射机和接收机的动作; 并且响应于报警信号而激活报警,并给装置安装车辆和后续车辆的驾驶者发出警告危险。