公开(公告)号：US20200301009A1

公开(公告)日：2020-09-24

申请号：US16812892

申请日：2020-03-09

申请人： AISIN SEIKI KABUSHIKI KAISHA

发明人： Ippei SUGAE

IPC分类号： G01S15/10 ,  G01S15/58 ,  G01S7/527

摘要： An object detection apparatus includes a transmitting portion configured to transmit a transmission wave, a receiving portion configured to receive a reception wave based on the transmission wave which returned, an estimation portion configured to estimate an amount of frequency transition between the transmission wave and the reception wave on the basis of a result of a frequency analysis, a correction portion configured to correct the reception wave to obtain consistency of frequencies with the transmission wave on the basis of an estimation result of the estimation portion, and a detection portion configured to detect information related to the object on the basis of a relation between the transmission wave and the corrected reception wave corrected by the correction portion.

公开(公告)号：US20200225348A1

公开(公告)日：2020-07-16

申请号：US16810977

申请日：2020-03-06

申请人： KUBOTA CORPORATION

发明人： Atsushi Shinkai ,  Yushi Matsuzaki ,  Tomoya Omura ,  Tomofumi Fukunaga

IPC分类号： G01S15/931 ,  G01S15/10 ,  G01S3/808 ,  G01S7/527

摘要： An obstacle detection device includes an ultrasonic sensor, an obstacle detector to determine presence of an obstacle of interest if an intensity of a received ultrasonic wave exceeds a threshold value, and a threshold value setter to set a short-distance detection threshold value as the threshold value for the obstacle detection in a short-distance detection area in a vicinity of the ultrasonic sensor and to set a long-distance threshold value as the threshold value for the obstacle detection in a long-distance detection area located farther from the ultrasonic sensor than the short-distance detection area, the long-distance threshold value being less than the short-distance detection threshold value. The short-distance detection area is an area where variation in sound pressure distribution of transmitted ultrasonic waves is equal to or greater than the threshold value, and the long-distance detection area includes an area where the variation of the sound pressure distribution of transmitted ultrasonic wave is smaller than the threshold value.

公开(公告)号：US20200174116A1

公开(公告)日：2020-06-04

申请号：US16207898

申请日：2018-12-03

申请人： TE CONNECTIVITY CORPORATION

发明人： Minoru Toda

IPC分类号： G01S15/10 ,  G01S7/527

摘要： Distance-detection system includes a signal-generator configured to provide a drive signal and an ultrasound transducer having at least one ultrasonic element. The ultrasound transducer is configured to transmit a pulse of sound waves and detect reflected sound waves. The distance-detection system also includes a receiver configured to receive a detection signal from the ultrasound transducer. The detection signal includes a reverberation component representing reverberation of the ultrasound transducer and a reflected component representing reflected sound waves from the interface. The receiver is configured to receive a drive-cancellation signal that is inverted with respect to the reverberation component of the detection signal. The receiver is configured to determine a time-of-flight measurement based on the detection signal in which the reverberation component of the detection signal is reduced by the drive-cancellation signal.

公开(公告)号：US10663568B2

公开(公告)日：2020-05-26

申请号：US15888471

申请日：2018-02-05

申请人： SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

发明人： Tomas Suchy ,  Miroslav Kassa ,  Marek Hustava

IPC分类号： G01S7/527 ,  G01S7/53 ,  G01S15/93 ,  G01S15/931 ,  G01S15/10

摘要： Composite burst signaling to provide robust multi-channel sensor array performance in systems for parking assistance, blind spot monitoring, and driver assistance. An illustrative method embodiment includes driving an acoustic transducer to send composite acoustic bursts. Each composite acoustic burst includes multiple individual bursts associated with respective frequency bands, the frequency band arrangement providing a source-specific burst signature. The method further includes receiving self-generated echo signals responsive to the composite acoustic bursts from the transducer and potentially including extra echoes responsive to acoustic bursts from other sources; categorizing received echo signals by source based on the burst signature; and using the self-generated echoes exclusive of the extra echoes to determine a distance or time of flight from the transducer.

公开(公告)号：US20200072973A1

公开(公告)日：2020-03-05

申请号：US16468160

申请日：2017-11-08

申请人： Robert Bosch GmbH

发明人： Dirk Schmid ,  Michael Schumann

IPC分类号： G01S15/10 ,  G01S7/527 ,  G01S15/32 ,  G01S15/93

摘要： A method for operating an ultrasonic sensor is provided, a plurality of measuring cycles being consecutively carried out. In each measuring cycle, an electroacoustic transducer of the ultrasonic sensor is excited to carry out mechanical oscillations with the aid of an excitation pulse, whereby a measuring signal is transmitted by the transducer, an echo signal is received by the transducer, and a piece of object information is ascertained from the echo signal. The frequency profile of the excitation pulse differs in measuring cycles which are carried out chronologically consecutively, the frequency profile of an excitation pulse being selected in each measuring cycle randomly or according to a predefined sequence from a group of predefined frequency profiles.

公开(公告)号：US10416018B2

公开(公告)日：2019-09-17

申请号：US15278839

申请日：2016-09-28

申请人： VEGA Grieshaber KG

发明人： Karl Griessbaum ,  Josef Fehrenbach ,  Roland Welle ,  Juergen Haas

IPC分类号： G01F23/00 ,  G01R27/00 ,  G01F23/26 ,  G01F23/28 ,  G01F23/284 ,  G01F23/296 ,  G01S7/285 ,  G01S7/292 ,  G01S7/527 ,  G01S13/10 ,  G01S13/88 ,  G01S15/88

摘要： A pulse running time filling level sensor includes a sampling device for sampling an IF signal at discrete instants and for converting the sampling values into digital sampling values, and a digital signal processing device for subsequent processing of the digital sampling values by calculating at least one new value characterizing the IF curve from respectively exactly two digital sampling values.

公开(公告)号：US10288732B2

公开(公告)日：2019-05-14

申请号：US15707459

申请日：2017-09-18

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Tadashi Morita ,  Masahiko Hashimoto

IPC分类号： G01S15/58 ,  G01S7/539 ,  G01S15/93 ,  G01S7/41 ,  G01S13/04 ,  G01S13/32 ,  G01S13/58 ,  G01S15/04 ,  G01S15/10 ,  G01S15/32 ,  G01S7/527 ,  G01S15/52 ,  G01S13/93 ,  G01S7/35

摘要： A detection device includes: a first correlation circuit that computes correlation of a first wave detection signal, which is a phase-modulated input wave detected at determined frequency, with a determined code sequence for every code composing the determined code sequence, and to generate first correlation signals the number of which corresponds to a code sequence length, which is a length of the determined code sequence; and a control circuit that rotates phases of the first correlation signals, generates an added value by adding the phase-rotated first correlation signals, and determines based on the added value whether the phase-modulated input wave is a return wave from a determined object.

公开(公告)号：US20190120959A1

公开(公告)日：2019-04-25

申请号：US16229655

申请日：2018-12-21

申请人： NAVICO HOLDING AS

发明人： Matthew Laster ,  Laurence T. Bates

IPC分类号： G01S15/96 ,  G01S15/89 ,  G01S7/527 ,  G06F3/0481 ,  G06F3/0482 ,  G05D1/02

摘要： Various implementations described herein are directed to a non-transitory computer readable medium having stored thereon computer-executable instructions which, when executed by a computer, may cause the computer to receive sonar data from a transducer assembly. The computer may process the sonar data to detect occurrence of an event and, in response, may automatically generate a waypoint corresponding to the event. In some cases, the waypoint may be stored with a corresponding sonar image or other information.

公开(公告)号：US10267912B1

公开(公告)日：2019-04-23

申请号：US15981318

申请日：2018-05-16

申请人： Cisco Technology, Inc.

发明人： Øystein Birkenes ,  Lennart Burenius

IPC分类号： G01S15/04 ,  G10K11/178 ,  G01S7/527 ,  G01S15/00 ,  G01S15/52 ,  G01S15/58 ,  G01S15/42 ,  G01S7/524 ,  G01S15/46 ,  G01S15/62 ,  G01S7/526 ,  G01S15/50 ,  G01S15/87 ,  G01S15/06 ,  G01S15/02

摘要： An endpoint among a plurality of endpoints, synchronizes a clock across the plurality of endpoints. The endpoint generates a received ultrasonic signal by transducing ultrasonic sound received at a microphone from a spatial region. The ultrasonic sound includes an identical ultrasonic signal transmitted from the plurality of endpoints and echoes from the spatial region. The identical ultrasonic signal is generated with respect to the synchronized clock. The endpoint computes an error signal based on removing the identical ultrasonic signals and the echoes from the received ultrasonic signal. The endpoint detects motion in the spatial region based on a change in the error signal over time.

公开(公告)号：US20190064318A1

公开(公告)日：2019-02-28

申请号：US15685349

申请日：2017-08-24

申请人： ICEYE Oy

发明人： Pekka Laurila

IPC分类号： G01S7/00 ,  G01S7/527 ,  G01S13/90

摘要： A system and a method for transmitting information from a synthetic aperture radar satellite to a client receiver. In one aspect, the synthetic aperture radar satellite includes a processing unit configured to form information from a previously measured synthetic aperture radar raw data stored in a data storage; a modulator configured to modulate the information to a synthetic aperture radar transmission signal; a transmitter for transmitting the modulated synthetic aperture radar transmission signal. The processing unit is configured to suppress the modulation from a received echo signal of the modulated synthetic aperture radar transmission signal to form and store a synthetic aperture radar raw data in the data storage. The client receiver includes an antenna for receiving the transmitted modulated synthetic aperture radar transmission signal; and a demodulator configured to demodulate the received transmitted modulated synthetic aperture radar transmission signal to obtain the information.