公开(公告)号：US12007475B2

公开(公告)日：2024-06-11

申请号：US17688354

申请日：2022-03-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshimasa Okabe ,  Toshimasa Takagi ,  Hiroki Yamashita

IPC: G01S15/931 ,  G01S15/10 ,  G01S15/12 ,  G01S15/14

CPC classification number: G01S15/931 ,  G01S15/101 ,  G01S15/12 ,  G01S15/14

Abstract: An object detection apparatus includes distance measuring devices and a hardware processor. The distance measuring devices are provided in a vehicle and emit ultrasonic waves. The distance measuring devices detect an object around the vehicle and obtain distance information indicating a distance to the detected object. The hardware processor determines a scene in which the vehicle is placed. The determination is performed on the basis of the distance information, vehicle speed information, an image of surroundings of the vehicle, and/or a location of the vehicle on a map. The hardware processor performs, on the basis of a scene determination result, setting of a high-sensitivity area where sensitivity for detecting the reflected waves is temporarily increased, a change of an emission interval of the ultrasonic waves, and/or a change of an emission sequence of the ultrasonic waves.

公开(公告)号：US20210208664A1

公开(公告)日：2021-07-08

申请号：US17211216

申请日：2021-03-24

Applicant: Intel Corporation

Inventor： Tigi Thomas

IPC: G06F1/3231 ,  G01S15/14 ,  G06F3/01

Abstract: Methods and apparatus to detect proximity of objects to computing devices using near ultrasonic sound waves are disclosed. An example apparatus includes a frequency analyzer to determine power levels of noise in different frequency bands associated with sound waves sensed by a microphone of a computing device. The example apparatus further includes a signal generator to cause a speaker to produce a series of acoustic pulses. A central frequency of the pulses is defined based on the power levels of noise in the different frequency bands. The sound waves are sensed by the microphone to include the pulses and echoes of the pulses reflected off objects in a vicinity of the computing device. The example apparatus also includes an object detection analyzer to determine whether a first object is within an activation region associated with the computing device based on the pulses and the echoes sensed by the microphone.

公开(公告)号：US09658329B2

公开(公告)日：2017-05-23

申请号：US13851620

申请日：2013-03-27

Applicant: Symbol Technologies, Inc.

Inventor： Russell E. Calvarese

IPC: G01S15/02 ,  G01S7/52 ,  G01S7/524 ,  G01S15/10 ,  G01S15/52 ,  G01S15/14 ,  G01S15/04 ,  G01S15/58

CPC classification number: G01S15/02 ,  G01S7/52004 ,  G01S7/524 ,  G01S15/04 ,  G01S15/10 ,  G01S15/14 ,  G01S15/523 ,  G01S15/582

Abstract: A method and apparatus to gate an ultrasonic emitter operation includes a housing including the ultrasonic emitter, where the ultrasonic emitter is operable to periodically transmit an ultrasonic pulse of a predefined frequency. A microphone circuit is disposed in the housing, such that the microphone circuit is operable to receive a reflected ultrasonic signal derived from the transmitted ultrasonic pulse. A controller is coupled to the emitter and the microphone circuit, where the controller operable to gate the operation of the emitter to an OFF state based on at least one measured parameter of the reflected ultrasonic signal. The parameters can include a Doppler measurement and a distance measurement.

公开(公告)号：US5030230A

公开(公告)日：1991-07-09

申请号：US460839

申请日：1990-01-23

Applicant: Thomas C. White

Inventor： Thomas C. White

IPC: A61F2/14 ,  G01S15/10 ,  G01S15/14

CPC classification number: A61F2/142 ,  G01S15/101 ,  G01S15/14

Abstract: An implant prosthesis and method for replacing a full or partial thickness of a cornea. The prosthesis includes a transparent lens portion, and a carrier of preserved tissue, preferably cornea. The lens is attached to the carrier which in turn is adapted for attachment to the eye wall.

Abstract translation: PCT No.PCT / US88 / 03207 Sec。 371 1990年1月23日第 102（e）日期1990年1月23日PCT提交1988年9月19日PCT公布。 WO89 / 05128 PCT出版物 日期：1989年6月15日。用于替换角膜全部或部分厚度的植入物假体和方法。 假体包括透明透镜部分和保留组织的载体，优选角膜。 透镜附接到载体上，该载体又适于附着到眼壁。

公开(公告)号：US4704906A

公开(公告)日：1987-11-10

申请号：US850234

申请日：1986-04-10

Applicant: Thomas L. Churchill ,  James M. Ross

Inventor： Thomas L. Churchill ,  James M. Ross

IPC: H02K11/00 ,  G01R31/34 ,  G01S15/14 ,  G01S15/88 ,  H02K15/16 ,  G01N29/00

CPC classification number: G01S15/88 ,  G01S15/14

Abstract: The air gap between a rotor and a stator in rotating electrical machinery is determined using sonar techniques. An ultrasonic signal transmitter and receiver are mounted on one of the rotor and stator for transmitting ultrasonic signals to the other of the rotor and stator and receiving reflections therefrom. The time between signal transmission and reflected signal reception is determined, and the spacing of the rotor and stator is determined from the time, the velocity of sound, and the speed of rotation of the rotor.

Abstract translation: 使用声纳技术确定旋转电机中的转子和定子之间的气隙。 超声波信号发射器和接收器安装在转子和定子中的一个上，用于将超声波信号传送到转子和定子中的另一个并从其接收反射。 确定信号传输和反射信号接收之间的时间，并根据时间，声速和转子的转速确定转子和定子的间距。

公开(公告)号：US4561064A

公开(公告)日：1985-12-24

申请号：US470467

申请日：1983-02-28

Applicant: Gerhard Bruggen ,  Dieter Karr ,  Wolfgang Rottler

Inventor： Gerhard Bruggen ,  Dieter Karr ,  Wolfgang Rottler

IPC: G01S7/40 ,  G01S7/52 ,  G01S13/06 ,  G01S13/93 ,  G01S15/14 ,  G01S15/93 ,  G08G1/00

CPC classification number: G01S15/931 ,  G01S15/14 ,  G01S7/52004 ,  G01S2007/52009 ,  Y10S367/902 ,  Y10S367/909

Abstract: To determine if a pulsed beam system, typically an ultrasonic pulsed beam system, which is located externally of a motor vehicle is in operative condition, a transmitter (14) projects a beam to a fixed reflector (16) located on the vehicle, and one (19) of a group of timing stages (18; 19, 20, 21) evaluates the transit time to the reflector. If the transit time to the reflector is slightly less than a predetermined time interval (Tc), so that the threshold timing level (Tc) is passed, a first indication, for example a frequency at a first tone (f1), generated by an acoustic tone generator (30) is reproduced in a loudspeaker; if, then, an obstruction is sensed by the beam, and the distance between the transmitter (14) and the obstruction (17) which forms a reflecting object drops below a first predetermined distance represented by a time period (T2), a second one of the transit time stages responds, and, through logic gates (22-24, 28, 29) provides a second discrete output frequency (f2) in the loudspeaker. If the vehicle closely approaches the reflecting object or obstruction (17), a third frequency (f3) is reproduced by the loudspeaker (26) and, additionally, a warning signal can be given. The system can be connected to the reverse gear or rear light switch, so that, if no obstruction is sensed, and only the signal from the reflector is reproduced, an audible indication of "reverse gear engaged" is provided, thus simultaneously providing a reverse gear signal as well as a signal representative of proper operation of the system. To compensate for ambient condition, dirt on the transmitters, and the like, the timing intervals by the transit time stages responding to the obstruction can be changed (FIG. 2) by providing a calibrating input based on actual transit time from the transmitter (14) to the fixed reflector (16).

公开(公告)号：US4531406A

公开(公告)日：1985-07-30

申请号：US437805

申请日：1982-10-29

Applicant: Harold B. Fritz

Inventor： Harold B. Fritz

IPC: G01F23/296 ,  G01S15/14 ,  G01S15/88 ,  G01S15/08

CPC classification number: G01F23/2962 ,  G01F22/00 ,  G01S15/14 ,  G01S15/88 ,  G01N2291/02836

Abstract: An ultrasonic liquid quantity measuring apparatus directs a collimated beam of ultrasonic energy from a transmitter transducer (14) through a conveyor (15) into the liquid (11) in a container (10) perpendicular to the top liquid surface. The ultrasonic beam travels with little loss through a tube (20) connected to the conveyor (15) until it reaches the top liquid surface. At this time the energy is reflected and detected with a receiver transducer (14). A microprocessor (34) measures the total signal round trip travel time representing the height of the liquid (11). Using several ultrasonic transducers (14) and knowing the size and shape of the container (10) the quantity of liquid (11) in the container (10) is accurately determined. A calibration (known reflected signal time) transducer (14a) is used to compensate for the change in propagation velocity due to temperature change in the liquid (11). Conventional electronic circuitry including the microprocessor (34) is employed to coordinate the operation of the several transducers (14 and 14a) automatically.

Abstract translation: 超声波液体测量装置将来自发射器传感器（14）的超声能量的准直束通过传送器（15）引导到垂直于顶部液体表面的容器（10）中的液体（11）中。 超声波束通过连接到传送器（15）的管（20）几乎没有损失，直到其到达顶部液体表面。 此时，用接收器换能器（14）反射和检测能量。 微处理器（34）测量表示液体（11）的高度的总信号往返行程时间。 使用几个超声换能器（14）并知道容器（10）的尺寸和形状，容器（10）中的液体（11）的数量被准确地确定。 校准（已知的反射信号时间）传感器（14a）用于补偿由于液体（11）中的温度变化引起的传播速度的变化。 包括微处理器（34）的常规电子电路被用于自动协调几个换能器（14和14a）的操作。

公开(公告)号：US4345657A

公开(公告)日：1982-08-24

申请号：US81726

申请日：1979-10-04

Applicant: Mig A. Howard

Inventor： Mig A. Howard

IPC: E21B47/04 ,  G01S15/14 ,  G01S15/88

CPC classification number: E21B47/04 ,  G01S15/14 ,  G01S15/88

Abstract: A depth determining device has features for informing the operator of the depth of the cutting tool of a hydraulic drilling machine. The drilling machine is for earth boreing and has a piston carried in a cylinder and secured to a driven kelly. The device has a transducer mounted at the top of the cylinder for transmitting a sound wave through hydraulic fluid to the tap of the piston and detecting the return of the wave at the top of the cylinder. A counter determines the elapsed time for the sound travel. The elapsed time is converted into depth and displayed.

Abstract translation: 深度确定装置具有用于向操作者通知液压钻孔机的切削工具的深度的特征。 该钻孔机用于地球钻孔，并具有一个承载在缸体中的活塞并固定在被驱动的凯利上。 该装置具有安装在气缸顶部的传感器，用于将声波通过液压流体传送到活塞的水龙头，并检测气缸顶部的波浪的返回。 计数器确定声音行程的经过时间。 经过的时间被转换成深度并显示。

公开(公告)号：US4307456A

公开(公告)日：1981-12-22

申请号：US95489

申请日：1979-11-19

Applicant: Yukihiko Ise ,  Shigeru Hayakawa

Inventor： Yukihiko Ise ,  Shigeru Hayakawa

IPC: G01S7/529 ,  G01S7/526 ,  G01S15/08 ,  G01S15/10 ,  G01S15/14

CPC classification number: G01S15/14 ,  G01S15/10 ,  Y10S367/90

Abstract: An ultrasonic rangefinder providing a correct distance measurement and comprising a first transducer for transducing electric signals into ultrasonic waves and transmitting the ultrasonic waves, a second transducer for receiving the ultrasonic waves and transducing the ultrasonic waves into electric signals, a differentiation circuit, and a comparator for comparing a level of a differentiated output signal from the differentiation circuit with an output signal level of the second transducer and detecting a threshold time when the level of the differentiated output signal from the differentiation circuit becomes lower then the output signal level of the second transducer where a threshold signal level of the comparator is automatically varied with respect to a time lapse of the travelling ultrasonic waves coming back to the rangefinder after being reflected by an object, thus overcoming the conventional problems due to the spurious-like direct waves.

Abstract translation: 一种提供正确距离测量的超声波测距装置，包括用于将电信号转换成超声波并传输超声波的第一换能器，用于接收超声波并将超声波转换成电信号的第二换能器，微分电路和比较器 用于将来自微分电路的微分输出信号的电平与第二换能器的输出信号电平进行比较，并且当差分电路的微分输出信号的电平变低时，检测阈值时间，然后检测第二换能器的输出信号电平 其中比较器的阈值信​​号电平相对于被物体反射回到测距仪的行进超声波的时间经过而自动变化，从而克服了由于类似伪造的直接波而引起的常规问题。

公开(公告)号：US4281404A

公开(公告)日：1981-07-28

申请号：US069858

申请日：1979-08-27

Applicant: Ray E. Morrow, Jr. ,  Richard W. Woodson

Inventor： Ray E. Morrow, Jr. ,  Richard W. Woodson

IPC: G01S7/521 ,  G01S7/524 ,  G01S7/56 ,  G01S15/14

CPC classification number: G01S7/521 ,  G01S15/14 ,  G01S7/524 ,  G01S7/56 ,  Y10S367/91

Abstract: A hand held, self-contained depth finding device is immersible into water for transmitting and receiving sonic impulses in the direction the device is aimed. The device includes a hand grip carrying a battery cartridge and an external trigger for operating a power switch within the waterproof interior. A liquid crystal display registers the measured depth in feet.

Abstract translation: 手持式独立的深度探测装置可以浸入水中，以便在设备瞄准的方向上发射和接收声波脉冲。 该装置包括携带电池盒的手柄和用于操作防水内部内的电源开关的外部触发器。 液晶显示器以英尺为单位记录测量深度。