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公开(公告)号：US4524356A
公开(公告)日：1985-06-18
申请号：US401023
申请日：1982-07-22
申请人： Masao Kodera , Shigeyuki Akita , Yasuhisa Yoshino
发明人： Masao Kodera , Shigeyuki Akita , Yasuhisa Yoshino
CPC分类号： G01S15/931 , Y10S367/909
摘要： An obstacle monitoring device for the rear of a vehicle comprising a plurality of ultrasonic obstacle detectors which are operated sequentially at a predetermined time interval, and an electronic monitor for supplying the obstacle detectors with their operational timing sequences at the predetermined time intervals and for determining distance information for each detector based on the changing pulse width of electric currents for each of the obstacle detectors within a particular time interval, which pulse widths correspond to the distance between an obstacle and the rear of the vehicle. A single transmission line connects the obstacle detectors with the monitor so that the number of wires in a wire-harness is reduced between the obstacle detectors (outside the vehicle) and the monitor (inside the vehicle).
摘要翻译： 一种用于车辆后部的障碍物监视装置，包括以预定时间间隔顺序操作的多个超声波障碍物检测器，以及电子监视器，用于以预定时间间隔向障碍物检测器提供其操作定时序列，并用于确定距离 基于在特定时间间隔内针对每个障碍物检测器的电流的脉冲宽度变化的每个检测器的信息，哪个脉冲宽度对应于障碍物与车辆后部之间的距离。 单个传输线将障碍物检测器与监视器连接，使得在障碍物检测器（车辆外部）和监视器（车辆内部）之间线束中的电线数量减少。
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公开(公告)号：US4433398A
公开(公告)日：1984-02-21
申请号：US265692
申请日：1981-05-20
申请人： Masao Kodera , Shigeyuki Akita
发明人： Masao Kodera , Shigeyuki Akita
CPC分类号： G10K11/025 , G10K11/20 , Y10S181/40
摘要： An ultrasonic transducer which is suited to be placed in the place exposed to water, comprises an ultrasonic vibrator which transmits and receives ultrasonic wave, a horn which imparts directivity to the ultrasonic wave and a bent wave guide which connects the ultrasonic vibrator and the horn, and a reflecting plate which is provided in the bent portion of the wave guide for guiding the ultrasonic wave into the horn or the ultrasonic vibrator. According to the ultrasonic transducer of the present invention, the ultrasonic vibrator can be positioned above the horn when the horn is horizontally disposed. Therefore, the ultrasonic vibrator is not splashed with water entering from the horn.
摘要翻译： 适用于放置在暴露于水的地方的超声波换能器包括发送和接收超声波的超声波振动器，赋予超声波方向性的喇叭和连接超声波振子和喇叭的弯曲波导， 以及反射板，其设置在波导的弯曲部分中，用于将超声波引导到喇叭或超声波振动器中。 根据本发明的超声波换能器，当水平放置喇叭时，超声波振动器可以位于喇叭的上方。 因此，超声波振动器不会从从喇叭进入的水溅出。
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公开(公告)号：US4618948A
公开(公告)日：1986-10-21
申请号：US552367
申请日：1983-11-15
CPC分类号： G01S15/931 , G01S7/521 , G01S2015/938 , Y10S367/909
摘要： An apparatus for detecting obstructions behind a vehicle, employing ultrasonic waves is disclosed. The apparatus comprises an ultrasonic transmitting and receiving device disposed on the rear portion of the vehicle, an electric motor for rotating the transmitting and receiving device at a constant velocity, an angle sensor for detecting the rotating angle of the transmitting and receiving device and a sonar circuit for emitting ultrasonic waves through the transmitting and receiving device at predetermined rotating angles, receiving ultrasonic waves reflected from obstructions through the transmitting and receiving device at predetermined rotating angles and measuring the distance to the obstructions from the time taken from the transmission to the reception of the ultrasonic waves. According to the apparatus of the present invention, the distances to obstructions in every region behind the vehicle can be accurately and easily measured by rotating a single transmitting and receiving device by means of the electric motor at a constant velocity.
摘要翻译： 公开了一种采用超声波检测车辆后方的障碍物的装置。 该装置包括设置在车辆后部的超声波发送和接收装置，用于以恒定速度旋转发射和接收装置的电动机，用于检测发射和接收装置的旋转角度的角度传感器和声纳 以预定的旋转角度通过发射和接收装置发射超声波的电路，从预定的旋转角度通过发射和接收装置接收从障碍物反射的超声波，并从从发射到接收的时间测量与障碍物的距离 超声波。 根据本发明的装置，通过以恒定的速度通过电动机旋转单个发送和接收装置，可以准确和容易地测量车辆后方每个区域中的障碍物的距离。
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公开(公告)号：US4580441A
公开(公告)日：1986-04-08
申请号：US608196
申请日：1984-05-08
CPC分类号： F01N3/028 , G01M15/102 , G01N22/00 , F02B3/06
摘要： A diesel smoke meter which uses micro-waves to detect the density of black smoke contained in the exhaust gas discharged from the diesel engine through an exhaust pipe. A micro-wave transmitting device is coupled to the exhaust pipe and transmits micro-waves into the exhaust pipe. Micro-waves transiting the exhaust pipe are attenuated by the black smoke in the exhaust gas. A micro-wave receiving device receives the attenuated micro-waves and provides a received signal which varies in accordance with the signal level of the attenuated micro-waves. A measuring device receives the received signal and provides an output indicative of the density of black smoke in the exhaust gas.
摘要翻译： 一种柴油烟度计，其使用微波来检测通过排气管从柴油发动机排出的废气中所含的黑烟的密度。 微波发射装置耦合到排气管并将微波传输到排气管中。 排气管的微波被废气中的黑烟所削弱。 微波接收装置接收衰减的微波，并提供根据衰减的微波的信号电平而变化的接收信号。 测量装置接收接收到的信号并提供表示排气中的黑烟浓度的输出。
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公开(公告)号：US4456848A
公开(公告)日：1984-06-26
申请号：US357617
申请日：1982-03-12
申请人： Eturo Yasuda , Shigeyuki Akita , Masao Kodera
发明人： Eturo Yasuda , Shigeyuki Akita , Masao Kodera
CPC分类号： B06B1/0603
摘要： An ultrasonic transmitting and receiving device comprises a bimorph vibrator including two piezoelectric elements each connected electrically to the corresponding one of a plurality of terminals for receiving and delivering electric signals and a metallic member made of a thin metal plate and including a flat plate portion and a cylindrical portion extending from the circumferential periphery of the flat plate portion. The flat plate portion is placed between the piezoelectric elements and the cylindrical portion increases in outer diameter as it becomes distant from the flat plate portion.
摘要翻译： 一种超声波发送和接收装置，包括双压电晶片振子，其包括两个压电元件，每个压电元件电连接到用于接收和传送电信号的多个端子中的相应一个端子，以及由薄金属板制成的金属部件，包括平板部分和 从平板部的圆周方向延伸的圆筒部。 平板部分放置在压电元件之间，并且圆柱形部分随着其远离平板部分而增大。
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公开(公告)号：US4485322A
公开(公告)日：1984-11-27
申请号：US360767
申请日：1982-03-22
申请人： Eturo Yasuda , Shigeyuki Akita , Masao Kodera
发明人： Eturo Yasuda , Shigeyuki Akita , Masao Kodera
CPC分类号： B06B1/0603
摘要： Provided is an ultrasonic transducer having a resonator which defines a space together with a bimorph cell disposed in the ultrasonic transducer. The space is fluid-tightly closed by the top portion of the resonator, thereby to keep water, such as for example, rainwater or cleaning water from entering into the space.
摘要翻译： 提供了一种超声波换能器，其具有与设置在超声换能器中的双压电池单元一起限定空间的谐振器。 该空间由共振器的顶部流体密封，从而保持水，例如雨水或清洁水不能进入该空间。
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公开(公告)号：US4451909A
公开(公告)日：1984-05-29
申请号：US329826
申请日：1981-12-11
申请人： Masao Kodera , Shigeyuki Akita
发明人： Masao Kodera , Shigeyuki Akita
CPC分类号： G01S15/14 , Y10S367/90 , Y10S73/90
摘要： In an ultrasonic wave distance detection system, an ultrasonic wave pulse radiated into the selected area is reflected on an object. Said reflected ultrasonic wave pulse is partly received by an ultrasonic wave transducer. The received signal is supplied to a variable gain amplifier, noise components are removed from the amplified signal through a band pass filter, the noise removed signal is detected by an envelope detector, the detected signal is compared with a predetermined level by a comparator, and the output of the comparator is applied to a flip-flop circuit.As the gain of the variable gain amplifier is set to be a lower level only at the beginning of the ultrasonic wave pulse to minimize the amplification of unnecessary signals without reducing the detection efficiency, a signal can be surely obtained which has a pulse width corresponding to the distance between the system and the object and thus the distance can be detected or measured.
摘要翻译： 在超声波距离检测系统中，辐射到选择区域的超声波脉冲反映在物体上。 所述反射的超声波脉冲部分地被超声波传感器接收。 接收到的信号被提供给可变增益放大器，通过带通滤波器从放大的信号中去除噪声分量，由包络检测器检测噪声去除信号，通过比较器将检测信号与预定电平进行比较， 比较器的输出被施加到触发器电路。 由于可变增益放大器的增益仅在超声波脉冲开始时被设定为较低电平，从而在不降低检测效率的情况下最小化不必要信号的放大，可以可靠地获得具有对应于 可以检测或测量系统与物体之间的距离，从而可以检测距离。
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公开(公告)号：US4684943A
公开(公告)日：1987-08-04
申请号：US821886
申请日：1986-01-27
申请人： Sotoo Kitamura , Shigeyuki Akita , Yoshiyuki Kago
发明人： Sotoo Kitamura , Shigeyuki Akita , Yoshiyuki Kago
CPC分类号： G08C17/04 , G07C9/00309 , G07C2009/00777
摘要： A device for unlocking a lid provided in a vehicle includes an unlocking actuator unit, a magnetic sensor unit, a signal processing unit, and a controller means. A transmitter unit with a power source generates and transmits a specific magnetic unlocking signal which is received by the magnetic sensor unit, hence, the unlocking actuator is controlled through the signal processing means and the controller means and, hence, the lid is unlocked.
摘要翻译： 用于解锁设置在车辆中的盖的装置包括解锁致动器单元，磁传感器单元，信号处理单元和控制器装置。 具有电源的发送器单元产生并发送由磁性传感器单元接收到的特定磁性解锁信号，因此通过信号处理装置和控制器装置控制解锁致动器，并且因此盖被解锁。
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公开(公告)号：US4623889A
公开(公告)日：1986-11-18
申请号：US643828
申请日：1984-08-24
申请人： Hiroaki Tanaka , Shigeyuki Akita
发明人： Hiroaki Tanaka , Shigeyuki Akita
CPC分类号： B60R16/027 , G08C17/06 , Y10T74/20262
摘要： A signal transmitting device for transmitting signals from operating switches which are provided on a steering wheel of an automobile to an electric load provided on a body thereof, is disclosed. The device comprises one annular electrode which is provided on a lower end surface of a steering wheel boss rotating with the steering wheel and another annular electrode which is provided on an upper end surface of a steering column cover fixed to the body so as to be opposed to the one annular electrode. These annular electrodes form a capacitor. The device further comprises a signal generating circuit composed of a plurality of resistors having different resistance values which are selectively connected to the one electrode provided on the steering wheel by use of the above described switches, an RC oscillator circuit composed of the above described capacitor which is connected to another annular electrode on the steering column cover and a signal receiving circuit which detects the change in output frequency of the oscillator circuit. The signal generating circuit is provided on the steering wheel while the oscillator circuit and the signal receiving circuit are provided on the body. By operating the switches, the resistor to be connected to the electrode provided on the steering wheel is changed so that the impedance of the line including the capacitor is changed. As a result, the output frequency of the oscillator circuit is changed by steps.
摘要翻译： 公开了一种信号发送装置，用于将设置在汽车的方向盘上的操作开关的信号传送到设置在其本体上的电负载上。 该装置包括一个环形电极，该环形电极设置在与方向盘一起旋转的方向盘凸台的下端表面上，另一环形电极设置在固定到主体上的转向柱盖的上端面上，以便相对 到一个环形电极。 这些环形电极形成电容器。 该装置还包括由具有不同电阻值的多个电阻组成的信号发生电路，它们通过使用上述开关选择性地连接到设置在方向盘上的一个电极，由上述电容器组成的RC振荡电路， 连接到转向柱盖上的另一个环形电极和检测振荡器电路的输出频率变化的信号接收电路。 信号发生电路设置在方向盘上，而振荡器电路和信号接收电路设置在主体上。 通过操作开关，改变连接到设置在方向盘上的电极的电阻器，使得包括电容器的线路的阻抗发生变化。 结果，振荡电路的输出频率被改变。
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公开(公告)号：US4580136A
公开(公告)日：1986-04-01
申请号：US538576
申请日：1983-10-03
申请人： Sotoo Kitamura , Shigeyuki Akita , Junji Kitagawa
发明人： Sotoo Kitamura , Shigeyuki Akita , Junji Kitagawa
CPC分类号： G07C9/00182 , G07C2009/00769 , G07C2009/0096 , G07C2209/63
摘要： A luggage door unlocking device for a vehicle by which a luggage door of vehicle can be unlocked without using an unlocking key is disclosed. The device includes a portable transmitter for generating an unlocking signal, a receiver which is mounted on a vehicle for receiving and discriminating the unlocking signal when the transmitter approaches the receiver and a luggage door unlocking mechanism for operating an unlocking mechanism of the vehicle when the receiver receives the unlocking signal. The transmitter has a walk detector for detecting the periodical vibrations when the person carrying the transmitter is walking which generates a walk detecting signal. Also, a switch turns on or off upon receiving the walk detecting signal from the walk detector. In the luggage door unlocking device, the transmitter having the switch which is turned off upon receiving the walk detecting signal, the transmitter begins to generate the unlocking signal just after the person carrying the transmitter stops walking so that the luggage door is automatically unlocked just after he stops walking.
摘要翻译： 公开了一种用于车辆的行李箱门解锁装置，通过该行李车门解锁装置可以在不使用解锁钥匙的情况下解锁车辆行李箱门。 该装置包括用于产生解锁信号的便携式发射器，安装在车辆上的接收器，用于当发射器接近接收器时接收和鉴别解锁信号;以及行李箱门解锁机构，用于当接收器操作车辆的解锁机构时 接收解锁信号。 发射机具有步行探测器，用于当携带发射机的人步行时检测周期性振动，其产生步行探测信号。 此外，当从步行检测器接收步行检测信号时，开关接通或断开。 在行李箱门解锁装置中，发送器具有接收步行检测信号时被切断的开关，发送器刚刚在携带发射器的人停止行走之后开始产生解锁信号，使得行李箱门刚刚被解锁 他停止走路。
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