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1.发明授权公开(公告)号：US12114962B2
公开(公告)日：2024-10-15
申请号：US17594355
申请日：2020-04-15
发明人： Malini Olivo , Renzhe Bi , Jun Hui Ho , Yao Du
CPC分类号： A61B5/0095 , A61B5/061 , A61B5/14539 , G01S5/18 , G01S11/14 , G01S11/16
摘要： An aspect relates to a placement device for placement in a medium, including: an elongated optical transmission guide to which a photoacoustic transducer is attached to, wherein the photoacoustic transducer may include a first surface facing away from the second end of the elongated optical transmission guide. The photoacoustic transducer may include a 3-Dimensional shape configured to produce an acoustic signal upon absorption of electromagnetic energy received from the elongated optical transmission guide, and an emission profile of the acoustic signal is based on the 3-Dimensional shape, when the photoacoustic transducer is immersed in homogeneous medium. The placement device may be integral to a medical or veterinary device. An aspect relates to a placement tracking system including the placement device and an ultrasound detector. An aspect relates to a method for tracking a portion of a placement device in a medium using the system.
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公开(公告)号：US11573245B2
公开(公告)日：2023-02-07
申请号：US16212032
申请日：2018-12-06
申请人： InvenSense, Inc.
IPC分类号： G06F3/01 , G01D18/00 , G01P13/00 , G01S11/14 , G01S11/12 , G01S11/16 , G06F3/038 , G06F3/033 , G01C21/16 , G06F3/0346 , G01S5/18
摘要： A sensor may be automatically calibrated during manufacture by providing a sensor processing unit having an integrated sensor, performing a check to determine if the integrated sensor has been previously calibrated upon a reset. When it has been determined the integrated sensor has not been previously calibrated, an automated calibration pattern may be imparted to the sensor so that a calibration parameter is determined.
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公开(公告)号：US11333737B2
公开(公告)日：2022-05-17
申请号：US16173083
申请日：2018-10-29
摘要： An ultrasonic transmitter apparatus is configured to transmit an ultrasonic signal that communicates a binary identifier. The apparatus includes an ultrasound transmission system and is configured to transmit an ultrasonic signal that communicates the binary identifier according to an encoding in which each bit position in the binary identifier is associated with a respective pair of frequencies and with respective first and second time positions in the ultrasonic signal. The value of the bit position in the binary identifier determines which frequency of the pair of frequencies is transmitted at the first respective time position in the ultrasonic signal, with the other frequency of the pair of frequencies being transmitted at the second respective time position in the ultrasonic signal.
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公开(公告)号：US11048268B2
公开(公告)日：2021-06-29
申请号：US16130212
申请日：2018-09-13
申请人： Chien Ouyang
发明人： Chien Ouyang
摘要： A robotic mapping and tracking system including a robot and boundary posts are disclosed. The robot includes an ultrasonic transmitter, a processor and a camera component. The boundary posts are configured to be placed adjacent to a boundary of a working region. Each boundary post of the plurality of boundary posts includes an ultrasonic receiver. Time-of-flights of the ultrasonic waves are measured to identify distances in between the robot and boundary posts. The camera component of the robot captures an image of an environment of the robot. The processor of the robot analyzes the image of the environment and identifies at least a portion of the working region in front of the robot from the image. The processor of the robot determines a moving route based on the identified portion of the working region in front of the robot and the distances in between the robot and the boundary posts.
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公开(公告)号：US11016167B2
公开(公告)日：2021-05-25
申请号：US16463321
申请日：2017-11-20
IPC分类号： G01S5/26 , G01S5/02 , G01S5/00 , G01S5/30 , G01S5/18 , G01S11/16 , H04W56/00 , G06F3/00 , G06K9/00
摘要： A tracking method includes displaying visual content on a screen of a head mounted display (HMD). One or more base stations may be stationary with respect to the screen while the visual content is being displayed. In contrast, one or more objects may move with respect to the screen while the visual content is being displayed. Time-difference-of-arrival (TDoA) and/or time-of-flight (ToF) may be measured for one or more ultrasonic pulses transmitted from the base station, one or more objects, or HMD. Position and orientation of the objects and HMD may be calculated based on the TDoA and ToF. Different frequencies of pulses may be used to locate the HMD and the objects. An electromagnetic synchronization signal from the HMD and/or base station may be used to measure TDoA. Position and orientation measurements may be fused with outputs from IMUS (inertial measurement units) to reduce jitter.
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公开(公告)号：US10893502B2
公开(公告)日：2021-01-12
申请号：US16919822
申请日：2020-07-02
申请人： ZEROKEY INC.
摘要： A range-finding and/or object-positioning system comprises one or more target devices; one or more reference devices communicating with said one or more target devices via one or more wireless signal sets, each wireless signal set comprising at least a first-speed signal having a first transmission speed and a second-speed signal having a second transmission speed, and the first transmission speed being higher than the second transmission speed; and at least one processing unit performing actions for determining at least one distance between one target device and one reference device based on the time difference between the receiving time of the first-speed signal and the receiving time of the second-speed signal of the wireless signal set communicated between said reference and target devices.
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公开(公告)号：US10756811B2
公开(公告)日：2020-08-25
申请号：US15942350
申请日：2018-03-30
摘要： A target receives two signals of different modes in association with a first location and another two signals in association with a second location. The first two signals are assumed to have been emitted effectively simultaneously from the first location, and the second two signals are assumed to have been emitted effectively simultaneously from the second location. A first distance is calculated in view of a receipt time difference of the first two signals in view of differing rates of propagation assumed between these two signals; a second distance is calculated in view of another receipt time difference of these second two signals in view of differing rates of propagation assumed between each of these other signals. A possible location of the target is then calculated in view of the first distance and its associated first location and the second distance and its associated second location.
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公开(公告)号：US10591589B2
公开(公告)日：2020-03-17
申请号：US15513069
申请日：2015-09-24
发明人： Kwang-Hoon Han , Gi-Beom Kim , Seong-Hee Park , Chil-Youl Yang , Myoung-Hwan Lee , Tae-Young Lee , Dohy Hong
摘要： The present disclosure relates to a sensor network, Machine Type Communication (MTC), Machine-to-Machine (M2M) communication, and technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the above technologies. According to various embodiments of the present disclosure, an apparatus of a first electronic device in a wireless communication system comprises at least one transceiver and at least one processor operatively coupled to the at least one transceiver. The at least one processor is configured to negotiate with a second electronic device, determine a measurement scheme selected from a plurality of measurement schemes using at least one of a wireless signal and a sound signal, based on a result of the negotiation with the second electronic device, and determine a distance between the first electronic device and the second electronic device according to the measurement scheme.
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公开(公告)号：US10547736B2
公开(公告)日：2020-01-28
申请号：US16225376
申请日：2018-12-19
IPC分类号： H04W4/80 , H04M1/725 , H04W4/02 , H04W4/029 , G01S5/00 , G01S5/18 , G01S5/28 , G01S5/30 , G01S11/16 , H04W4/40 , H04W88/02 , H04W84/00
摘要： A system and method for determining a presence of a mobile device located in a predetermined detection zone within a vehicle may include a plurality of transmitters located within the vehicle, in which each of the plurality of transmitters is configured to transmit an acoustic signal into an acoustic environment within the vehicle, and in which each of the acoustic signals comprises at least one ultrasonic pulse, a mobile device configured to periodically record sounds in the acoustic environment, and a processor configured to determine that a periodically recorded sound by the mobile device comprises each of the acoustic signals transmitted by the plurality of transmitters, determine a location of the mobile device within the vehicle based on the acoustic signals recorded by the mobile device, and determine that the location of the mobile device matches the predetermined detection zone.
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公开(公告)号：US20190199850A1
公开(公告)日：2019-06-27
申请号：US16225376
申请日：2018-12-19
IPC分类号： H04M1/725 , H04W4/02 , G01S5/30 , G01S5/00 , G01S5/18 , G01S5/28 , H04W4/40 , G01S11/16 , H04W4/80
摘要： A system and method for determining a presence of a mobile device located in a predetermined detection zone within a vehicle may include a plurality of transmitters located within the vehicle, in which each of the plurality of transmitters is configured to transmit an acoustic signal into an acoustic environment within the vehicle, and in which each of the acoustic signals comprises at least one ultrasonic pulse, a mobile device configured to periodically record sounds in the acoustic environment, and a processor configured to determine that a periodically recorded sound by the mobile device comprises each of the acoustic signals transmitted by the plurality of transmitters, determine a location of the mobile device within the vehicle based on the acoustic signals recorded by the mobile device, and determine that the location of the mobile device matches the predetermined detection zone.
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