-
公开(公告)号：US20230132220A1
公开(公告)日：2023-04-27
申请号：US18089221
申请日：2022-12-27
摘要： An aspect of the invention is directed to a system of both atmospheric and underwater sensors for measuring pressure waves from a noise source. A system of pressure sensors can be formed to determine the location of an external noise source, whether in air or underwater. The system includes at least two arrays consisting of pressure sensors, including at least one atmospheric pressure sensor and at least one underwater pressure sensor, such as a hydrophone. Each sensor may be a seven-fiber intensity modulated fiber optic pressure sensor. The system includes an analog to digital converter for digitizing the pressure data received from each sensor and a processor which processes the received signals to calculate an approximate location of the noise source based upon the pressure signals received by the sensors at different times of arrival. The system can provide this capability in remote applications due to its low power requirements.
-
公开(公告)号：US11550018B2
公开(公告)日：2023-01-10
申请号：US16378543
申请日：2019-04-08
发明人： Guangsong Liu
摘要： Embodiments of the present disclosure provide a positioning system and positioning method. A reverse calibrator for respectively calibrating relative coordinates of at least three ultrasound generators; a processor for generating a carrier signal, multiplying the carrier signal with a spread spectrum pseudo random code to obtain ranging signal, controlling each ultrasound generator to emit ranging signal, and extracting acoustic characteristic parameter of the ranging signals; a device being positioned for capturing ranging signals emitted by each generator, extracting acoustic characteristic parameter of each of the captured ranging signals; determining an ultrasonic delay time of each ultrasonic ranging signal; calculating relative coordinates of the device.
-
公开(公告)号：US11327150B2
公开(公告)日：2022-05-10
申请号：US16545426
申请日：2019-08-20
申请人： Roku, Inc.
摘要： Disclosed herein are system, apparatus, article of manufacture, method, and/or computer program product embodiments for a mobile device based control device locator. An embodiment operates by receiving a request to locate a control device, transmitting acoustic token transmission information to the control device to activate an electroacoustic transducer on the control device, receiving an acoustic signal including an acoustic token signal from the control device via a plurality of acoustic sensors, and determining distance information of the control device based on the received acoustic token signal generated by the electroacoustic transducer of the control device.
-
公开(公告)号：US11287506B2
公开(公告)日：2022-03-29
申请号：US16893675
申请日：2020-06-05
发明人： Jerry W. Rouse , Daniel Bowman , Timothy Walsh
摘要： A method and apparatus for determining a direction of infrasound. Infrasound is received by a directional infrasound sensor comprising a plurality of channels and a plurality of sensor devices. Each channel in the plurality of channels comprises a single opening at a first end of the channel and a closed end opposite the opening. The opening of each channel in the plurality of channels is pointed in a different direction from the opening of each other channel in the plurality of channels. The plurality of sensor devices includes a sensor device at the closed end of each channel in the plurality of channels. Each sensor device in the plurality of sensor devices is configured to generate a sensor signal in response to pressure. The sensor signals generated by the plurality of sensor devices are processed to determine the direction of the infrasound received by the directional infrasound sensor.
-
公开(公告)号：US11262234B2
公开(公告)日：2022-03-01
申请号：US16574916
申请日：2019-09-18
发明人： Sungchan Kang , Hyunwook Kang , Yongseop Yoon , Jaehyung Jang
摘要： A directional acoustic sensor may include a plurality of resonators arranged in different directions; and a processor configured to calculate a time difference between a first signal that is received by the plurality of resonators directly from a sound source (e.g., a speaker) and a second signal that is received by the plurality of resonators from the sound source after being reflected on a wall surface around the sound source, and determine a distance between the sound source and the directional acoustic sensor based on the time difference.
-
公开(公告)号：US11163033B2
公开(公告)日：2021-11-02
申请号：US16229086
申请日：2018-12-21
发明人： Ryoki Watanabe , Tomohide Onogi
摘要： An ultrasonic measurement device includes an ultrasonic transceiver transmitting an ultrasonic wave and receiving a reflected wave from a target so as to output a reception signal, a scanner moving a transmission/reception position where the ultrasonic transceiver transmits and receives the ultrasonic wave along a first direction, and a position measurer measuring a position of the target. When the position measurer detects a plurality of reception signals corresponding to a plurality of reflection components caused by a difference in distances from the target at a first transmission/reception position in the first direction, the position measurer selects the reception signal based on a ratio between a voltage of the reception signals at a comparison transmission/reception position different from the first transmission/reception position and a voltage of the reception signals at the first transmission/reception position, and measures the position of the target based on the selected reception signal.
-
公开(公告)号：US10966021B2
公开(公告)日：2021-03-30
申请号：US16189313
申请日：2018-11-13
发明人： Ivan Koudar , Jan Ledvina
摘要： In an embodiment, a transducer controller is configured to apply a damping signal to reduce energy stored in the transducer after the transducer has been driven with a drive signal to form a transmitted acoustic signal.
-
公开(公告)号：US10914810B2
公开(公告)日：2021-02-09
申请号：US15982362
申请日：2018-05-17
申请人： NAVICO HOLDING AS
发明人： Matthew W. Laster , Jeremiah Clark , Lucas Steward
IPC分类号： G01S3/801 , G01S3/802 , G09B29/00 , G06F3/041 , G06F3/0488 , G06F3/0484 , H04N1/00
摘要： An apparatus for providing marine information is provided including a user interface, a processor, and a memory including computer program code. The memory and the computer program code are configured to, with the processor, cause the apparatus to generate a sonar image based on sonar return data received from an underwater environment, determine a location associated with the sonar return data based on location data received from one or more position sensors, and render a nautical chart on a display. The computer program code is further configured to cause the apparatus to receive a user input on the user interface directed to a portion of the display in which the nautical chart is presented, and modify presentation of the nautical chart such that the portion of the display presents the sonar image in response to receiving the user input.
-
公开(公告)号：US10810881B2
公开(公告)日：2020-10-20
申请号：US15387424
申请日：2016-12-21
发明人： Yoon Ho Jang , Jae Kwang Kim
摘要： Disclosed are a method of providing sound tracking information, a sound tracking apparatus for vehicles and a vehicle having the sound tracking apparatus. The method of providing sound tracking information includes generating sound tracking results based on sound data generated by sensing sound generated around a vehicle, calculating 3D coordinates of a target sound source according to angle values of the target sound source recognized from the sound tracking results, and generating a notification of the target sound source based on the 3D coordinates, and the sound tracking results include information on probabilities that an object corresponding to the target sound source is present at respective angles in each of continuous frames according to time.
-
公开(公告)号：US20200298756A1
公开(公告)日：2020-09-24
申请号：US16816657
申请日：2020-03-12
摘要： A system for monitoring an acoustic scene outside a vehicle; the system including: a vehicle with wheels and a trunk, an acoustic sensor disposed in the trunk, a control unit operatively connected to the acoustic sensor, and at least one neural network operatively connected to the control unit, and trained in such a way to correlate the characteristics of an audio signal with types of road surfaces; the control unit is configured in such a way to receive an audio signal detected by the acoustic sensor while the vehicle is traveling, extract the characteristics of the audio signal and input said characteristics of the audio signal to the neural network in order to identify the type of road surface covered by the vehicle wheels.
-
-
-
-
-
-
-
-
-
搜索结果
194 条记录 (耗时 0.024 秒)
