141 |
METHOD AND A SYSTEM FOR DETERMINING THE LOCATION OF AN OBJECT |
US14575912 |
2014-12-18 |
US20150106053A1 |
2015-04-16 |
Orhan OCAL; Ivan DOKMANIC; Martin VETTERLI |
A method for determining the location of a transmitter (respectively a receiver) in a space defined by one or more reflective surfaces, including the steps of sending a signal from the transmitter (respectively from a set of transmitters); receiving by a set of receivers (respectively by a receiver) the transmitted signal and echoes of the transmitted signal reflected by the reflective surfaces; finding by a first computing module the location of the virtual sources (respectively virtual receivers) of the echoes; mirroring by a second computing module the virtual sources (respectively virtual receivers) into the space and obtained mirrored virtual sources (respectively mirrored virtual receivers); combining by a third computing module the mirrored virtual sources (respectively mirrored virtual receivers) so as to obtain location of the transmitter (respectively the receiver). This method makes use of echoes for localizing the source (respectively receiver) when there is no line of sight between the transmitter(s) and the receiver(s). |
142 |
GROUP OF SPACED APART ACOUSTIC TRANSCIVER ARRAYS AND A METHOD FOR MEASURING A CONTENT OF A BIN |
US14050382 |
2013-10-10 |
US20150103627A1 |
2015-04-16 |
Avishai Bartov; Yossi Zlotnick |
A method and a system for evaluating a content of a bin, the method may include: transmitting at a first point in time and by a first acoustic transceiver array, a first acoustic pulse; receiving by a second acoustic transceiver array an echo of the first acoustic pulse; and processing the echo of the first acoustic pulse to assist in a provision of a first estimate related to the content; wherein the second acoustic transceiver array differs from the first transceiver array; wherein a distance between the first and second acoustic transceiver array is at least ten times a distance between transducers of the second acoustic transceiver array. |
143 |
Pairwise Grouping of Joint Sparsity Models for Sensing Array Processing |
US13780450 |
2013-02-28 |
US20140177384A1 |
2014-06-26 |
Petros T. Boufounos |
A scene is reconstructed by transmitting pulses into a scene from an array of transmitters so that only one pulse is transmitted by one transmitter at any one time. The one pulse is reflection by the scene and received as a set of signals. Each signal is sampled and decomposed to produce frequency coefficients stacked in a set of linear systems modeling a reflectivity of the scene. Then, a reconstruction method is applied to the set of linear systems. The reconstruction method solves each linear system separately to obtain corresponding solutions, which are shared and combined to reconstruct the scene. |
144 |
METHODS AND APPARATUS FOR DETECTION OF FLUID INTERFACE FLUCTUATIONS |
US14002569 |
2012-03-05 |
US20130333483A1 |
2013-12-19 |
Kirill Horoshenkov; Andrew Nichols |
Dynamic characteristics of a liquid surface (160) are measured by sending acoustic signals (140) to or more target areas (162a-162c) on the liquid surface and receiving said acoustic signals (150a-150c) after reflection from the target area. The detected signals are processed to measure phase shift between the sent and received acoustic signals, the measured phase shift varying over time. The varying phase shift is used to indicate fluctuations over time in the local height of the liquid surface in the target area. The liquid may be water, effluent etc. flowing in a channel or conduit. With suitable calibration, the measured height fluctuations can be used to infer flow characteristics such as surface roughness, wave height, flow depth, flow velocity, volumetric flow rate, shear stress, sediment transport. Using an array of receivers and target areas, additional spatial and temporal characteristics of the surface and the flow can be measured. |
145 |
TARGET DETECTION DEVICE, TARGET DETECTION CONTROL PROGRAM, AND TARGET DETECTION METHOD |
US13127667 |
2009-11-05 |
US20120000289A1 |
2012-01-05 |
Yoshiaki Tsurugaya; Toshiaki Kikuchi |
A target detection device includes: a sound source which projects a sound pulse; a transducer array disposed in a region for receiving a forward scattered wave from an object in the propagation environment; an addition processing unit which extracts only a signal of the forward scattered wave by applying vector addition processing on a reference signal in a reference sound field received when an obstacle exists in the propagation environment and a mixed signal in a mixed sound field received when the target exists with the obstacle; a phase conjugation determination unit which checks whether a phase conjugacy is established by receiving the signal of the extracted forward scattered wave and employing a passive phase conjugation for determining the reference sound field; and a time reversal processing unit which generates a time reversal signal on condition that the phase conjugation determination unit judges that the phase conjugacy is established. |
146 |
VEHICLE-USE OBJECT DETECTION APPARATUS |
US13076831 |
2011-03-31 |
US20110241858A1 |
2011-10-06 |
Takeo Tsuzuki |
The vehicle-use object detection apparatus includes a plurality of ultrasonic sensors mounted on a vehicle, each of the ultrasonic sensors being configured to receive a reflected version of an ultrasonic wave transmitted by itself and not to receive reflected versions of ultrasonic waves transmitted by the other ultrasonic sensors, a first determination means to make a determination whether an object is present around the vehicle based on the received reflected versions of the transmitted ultrasonic waves when a first detection condition is satisfied, and a second determination means to make a determination, for each of the ultrasonic sensors, whether there is adhesion of snow around the ultrasonic sensor based on an echo wave received by the ultrasonic sensor when a second detection condition different from the first detection condition is satisfied. |
147 |
Ultrasonic Doppler System and Method for Gesture Recognition |
US12367720 |
2009-02-09 |
US20100202656A1 |
2010-08-12 |
Bhiksha Raj Ramakrishnan; Kaustubh Kalgaonkar |
A method and system recognizes an unknown gesture by directing an ultrasonic signal at an object making an unknown gestures. A set of Doppler signals are acquired of the ultrasonic signal after reflection by the object. Doppler features are extracted from the reflected Doppler signal, and the Doppler features are classified using a set of Doppler models storing the Doppler features and identities of known gestures to recognize and identify the unknown gesture, wherein there is one Doppler model for each known gesture. |
148 |
TARGET SEARCHING DEVICE, TARGET SEARCHING PROGRAM, AND TARGET SEARCHING METHOD |
US12491678 |
2009-06-25 |
US20090323473A1 |
2009-12-31 |
Yoshiaki Tsurugaya; Toshiaki Kikuchi |
The target searching device includes: a sound source which transmits a sound wave into a propagation space; a transducer array placed in an area to receive a forward scattering wave which scatters forward from the target within the propagation space; a subtraction processing device which subtracts a traveling wave directly traveling towards the transducer array from a mixed wave of the forward scattering wave and the traveling wave so as to separate the forward scattering wave; a passive-phase conjugate processing device which performs passive-phase conjugate processing on the forward scattering wave separated by the subtraction processing device so as to generate a passive-phase conjugated signal of the forward scattering wave; an autocorrelation processing device which performs autocorrelation processing on the traveling wave to generate an autocorrelation processed signal of the traveling wave; and a correlation device which judges a similarity between the autocorrelation processed signal and the passive-phase conjugated signal. |
149 |
Harbor fence |
US11265150 |
2005-11-03 |
US07233544B1 |
2007-06-19 |
Larry R McDonald |
Methods and apparatus determine if an intruder passes into a security zone that is associated with a waterfront asset. An embodiment of the invention provides a harbor fence system that is designed to be deployed in water around ships or other waterfront assets to serve as a line-of-demarcation in order to provide protection. The harbor fence system comprises a series of spars that protrude above the water surface and that are connected with an electrical computer with a telemetry subsystem. Each spar contains electronic sensors, e.g. water immersion sensors and accelerometers, and circuitry to detect an intrusion and to communicate the location of the intrusion to a computer control station. The embodiment also facilitates deploying and retrieving the harbor fence system. Additionally, the embodiment may also determine whether an underwater intruder is passing under a protective boundary, in which the harbor fence system interfaces to an underwater sonar sensor subsystem. |
150 |
Harbor fence |
US10863986 |
2004-06-09 |
US06980483B2 |
2005-12-27 |
Larry R. McDonald |
Methods and apparatus determine if an intruder passes into a security zone that is associated with a waterfront asset. An embodiment of the invention provides a harbor fence system that is designed to be deployed in water around ships or other waterfront assets to serve as a line-of-demarcation in order to provide protection. The harbor fence system comprises a series of spars that protrude above the water surface and that communicate with a computer with a telemetry subsystem. Each spar contains electronic sensors, e.g. water immersion sensors and accelerometers, and circuitry to detect an intrusion and to communicate the location of the intrusion to a computer control station. Spars may communicate wirelessly and may also be solar powered. Additionally, the embodiment may also determine whether an underwater intruder is passing under a protective boundary, in which the harbor fence system interfaces to an underwater sonar sensor subsystem. |
151 |
HARBOR FENCE |
US10863986 |
2004-06-09 |
US20050232079A1 |
2005-10-20 |
Larry McDonald |
Methods and apparatus determine if an intruder passes into a security zone that is associated with a waterfront asset. An embodiment of the invention provides a harbor fence system that is designed to be deployed in water around ships or other waterfront assets to serve as a line-of-demarcation in order to provide protection. The harbor fence system comprises a series of spars that protrude above the water surface and that communicate with a computer with a telemetry subsystem. Each spar contains electronic sensors, e.g. water immersion sensors and accelerometers, and circuitry to detect an intrusion and to communicate the location of the intrusion to a computer control station. Spars may communicate wirelessly and may also be solar powered. Additionally, the embodiment may also determine whether an underwater intruder is passing under a protective boundary, in which the harbor fence system interfaces to an underwater sonar sensor subsystem. |
152 |
Acoustic method and device for distance measurement |
US10656655 |
2003-09-05 |
US06836449B2 |
2004-12-28 |
Alexander M. Raykhman; David I. Freger; Boris Sherman |
An acoustic method for measuring of a distance between an emitter of acoustic energy and a target object provides for an accurate measurement by having the measurement's outcome invariant to the speed of sound variations along the acoustical path between the emitter and the target. A plurality of emitters and a plurality of receivers are used in the invention. One acoustic emitter and one receiver are located in a spatial region such that the sent and the reflected acoustical energy passes along substantially same vertical line between the emitter and the target. Another acoustic emitter sends the acoustical energy at an angled direction to the same area on the target's reflecting surface as the first emitter does. The corresponding echo travels to another receiver. During the measurement, two specific variables are being monitored such that possible variations of the speed of sound are irrelevant to the result of the distance measurement. |
153 |
Harbor fence |
US10365357 |
2003-02-12 |
US06778469B1 |
2004-08-17 |
Larry R. McDonald |
Methods and apparatus determine if an intruder passes into a security zone that is associated with a waterfront asset. An embodiment of the invention provides a harbor fence system that is designed to be deployed in water around ships or other waterfront assets to serve as a line-of-demarcation in order to provide protection. The harbor fence system comprises a series of spars that protrude above the water surface and that are connected with an electrical computer with a telemetry subsystem. Each spar contains electronic sensors, e.g. water immersion sensors and accelerometers, and circuitry to detect an intrusion and to communicate the location of the intrusion to a computer control station. The embodiment also facilitates deploying and retrieving the harbor fence system. Additionally, the embodiment may also determine whether an underwater intruder is passing under a protective boundary, in which the harbor fence system interfaces to an underwater sonar sensor subsystem. |
154 |
System for locating obstacles |
US41611141 |
1941-10-22 |
US2433332A |
1947-12-30 |
HUGO BENIOFF |
|
155 |
ULTRASONIC SENSOR ARRANGMENT COMPRISING AN ULTRASONIC SENSOR IN THE RADIATOR GRILL, MOTOR VEHICLE AND CORRESPONDING METHOD |
PCT/EP2013065505 |
2013-07-23 |
WO2014016291A2 |
2014-01-30 |
WEHLING HANS-WILHELM; WEYLAND JOERG; WEBER NATALIE; MAX STEPHAN |
The invention relates to an ultra sonic sensor arrangement (2) for a motor vehicle (1), comprising a lining part (3), in particular a bumper, a radiator grill (4), and at least one first and one second ultrasonic sensor (5, 6) respectively comprising a membrane (11) for emitting and/or capturing ultrasonic signals. The first ultrasonic sensor (5) with the membrane (11) is arranged on a rear side of the lining part (3) so that the membrane (11) of the first ultrasonic sensor (5) is formed through the lining part (3) for emitting and/or capturing the ultrasonic signals, and the second ultrasonic sensor (6) is arranged on the radiator grill (4). The second ultrasonic sensor (6) is detuned by detuning means (7, 9) and the emission and/or capturing behaviour is adapted to the emission and/or capturing behaviour of the frist ultrasonic sensor (5) |
156 |
DERIVING CONTACT STRESS OR CONTACT LOAD USING ULTRASOUND DATA |
PCT/GB2015052118 |
2015-07-22 |
WO2016027056A3 |
2016-04-21 |
MILLS ROBIN; DWYER-JOYCE ROBERT; HUNTER ANDREW; CHEN WENQU |
An analysis device comprises an output to output data relating to at least one of a contact stress in or a contact load applied to the first element; and process the ultrasound data to determine ultrasound time-of-flight data, and derive the output data, wherein a propagation direction of the ultrasound has a greatest component perpendicular to the contact surface, and wherein the processing to determine ultrasound time-of-flight data includes determining a time-of-flight of the ultrasound independent of a phase shift dependent on a contact condition at the contact surface. In another analysis device, deriving output data includes determining at least one of the contact stress or the contact load, the determining based at least in part on an estimated change in a speed of the ultrasound due to the acoustoelastic effect. |
157 |
ACOUSTIC METHOD AND DEVICE FOR DISTANCE MEASUREMENT |
PCT/US0327861 |
2003-09-05 |
WO2004023154A3 |
2004-05-06 |
RAYKHMAN ALEXANDER M; FREGER DAVID J; SHERMAN BORIS |
An acoustic method for measuring of a distance between an emitter of acoustic energy and a target object provides for an accurate measurement by having the measurement's outcome invariant to the speed of sound variations along the acoustical path between the emitter and the target. One emitter (40) and one receiver are located in a spatial region such that the sent and the reflected acoustic energy passes along substantially the same vertical line between the emitter and the target (12). Another emitter (48) sends acoustic energy at an angled direction to the same area (10) on the target's reflecting surface as the first emitter does. The corresponding echo travels to another receiver (52). The sought distance between the first emitter and the target's reflecting area is calculated by a function of the radio between the travel time measurements, whereby, possible variations of the speed of sound to the result of the distance calculations are irrelevant. |
158 |
自主移动机器人 |
CN201490001281.6 |
2014-11-19 |
CN206950128U |
2018-02-02 |
J·史密斯 |
一种机器人(100)包含具有前向及后向部分(112、114)的机器人主体(110)、声呐系统(530)、驱动系统(120)及控制系统(210)。所述声呐系统安置于所述机器人主体上且具有沿着所述机器人主体的前向表面(113)布置的发射器阵列(530e1到530e3)及接收器阵列(530r1到530r4)。所述发射器发射声波(532)且所述接收器接收所述声波的反射。所述发射器阵列包含奇数个发射器且所述接收器阵列包含偶数个接收器。所述驱动系统支撑所述机器人主体且沿着一路径(60)操纵所述机器人跨越地板表面(10)。所述控制系统与所述驱动系统及所述声呐系统通信。所述控制系统处理从所述接收器阵列接收的传感器信号。 |