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公开(公告)号：US11619700B2
公开(公告)日：2023-04-04
申请号：US17221982
申请日：2021-04-05
申请人： Parsons Corporation
摘要： Using captured and stored wideband historical radio frequency data bearing information to the source of a signal of interest achieved using as few as two receivers and a plurality of commutating antennas. Wideband IQ data streams are received at two or more receivers and stored for later analysis. A first receiver is coupled to a reference antenna and a second receiver is commutatively coupled to a plurality of commutating antennas. Later, streams of wideband IQ data are retrieved for a select period of time and synchronized. From these streams a signal of interest identified and synchronously sampled over an acquisition interval by each receiver. Phase differences of the signal at each of the plurality commutating antennas is measured enabling a determination of the bearing to the common signal of interest.
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公开(公告)号：US20230065313A1
公开(公告)日：2023-03-02
申请号：US17843348
申请日：2022-06-17
发明人： Yoshiki OISHI , Kenichi KOGA , Tatsuya KOIKE , Satoshi MORI , Kento KATAOKA
摘要： To estimate a positional relationship between devices having transmitted and received signals with higher accuracy.
A control device includes a control unit that compares reliability parameters that are indexes indicating a degree of whether or not a signal is appropriate as a processing target for estimating a positional relationship between each of the plurality of communication devices and the other communication device, calculated on the basis of the signals received from the other communication device by the communication device, and performs control for estimating the positional relationship on the basis of a signal transmitted and received between the communication device that has received a signal that is more appropriate as a processing target for estimating the positional relationship and the other communication device.-
3.发明授权公开(公告)号：US11550021B2
公开(公告)日：2023-01-10
申请号：US17104778
申请日：2020-11-25
发明人： Paul Denisowski
摘要： A method of localizing a near vertical incidence skywave emitter. At a first site a first elevation angle of an incoming signal issued by the near vertical incidence skywave emitter is measured. At a second site a second elevation angle of an incoming signal issued by the near vertical incidence skywave emitter is measured, wherein the second site is different to the first site. The first elevation angle measured and the second elevation angle measured are converted into a first length and a second length respectively, which represent the distance between the respective site and the estimated location of the near vertical incidence skywave emitter. The respective length is processed, thereby generating an estimated area of the near vertical incidence skywave emitter for each of the different sites such that at least two different estimated areas are generated. The estimated areas for each site are superimposed, thereby obtaining an area of interest encompassing the estimated location of the near vertical incidence skywave emitter. Further, a direction finding system is described.
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公开(公告)号：US20220360119A1
公开(公告)日：2022-11-10
申请号：US17486931
申请日：2021-09-28
发明人： Shih Hsiao Chou , Kai Yuan Cheng , Ta Yu Lin
摘要： The disclosure provides a charging device and a method for positioning an electronic device. The method includes: in response to determining that a positioning request signal from an electronic device is received, enabling multiple antennas; controlling each antenna to receive a first radio frequency signal broadcast by the electronic device, and determining an arrival angle of the first radio frequency signal and a distance between the electronic device and the charging device based on the first radio frequency signal received by each antenna; and determining a relative position between the charging device and the electronic device based on the arrival angle and distance.
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公开(公告)号：US20220324272A1
公开(公告)日：2022-10-13
申请号：US17699549
申请日：2022-03-21
发明人： Jiajie Fu , Chunbo Lin
摘要： A tire localization method for a vehicle, can include: matching a first Bluetooth module in each tire of the vehicle with a second Bluetooth module of a Bluetooth host in the vehicle; acquiring first data representing a received signal strength indication of a first radio frequency signal sent by the first Bluetooth module in each tire; acquiring an angle of arrival of the first Bluetooth module in each tire relative to the second Bluetooth module; and locating each tire based on the first data and the angle of arrival.
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公开(公告)号：US11415660B2
公开(公告)日：2022-08-16
申请号：US16641814
申请日：2018-12-19
发明人： Yubin Yuan , Ibraheem Inam , Guanjiao Ren , Zhu Hou , Zhongyuan Chen
摘要： Disclosed are a positioning communication device, a positioning method, and a computer storage medium. The positioning communication device comprises: at least two positioning antenna groups (111), at least used for receiving a positioning signal sent by a beacon, wherein each positioning antenna group (111) comprises two positioning antennas arranged separately, and the positioning ranges of different positioning antenna groups (111) are at least partially different; a selection switching module (112) respectively connected to the at least two positioning antenna groups (111); and a processing module (113), connected to the positioning antenna groups (111) by means of the selection switching module (112), and used for controlling, according to orientation information of the beacon at a previous moment, the positioning antenna group (111) turned on by the selection switching module (112), and determining, according to the positioning signal received by the positioning antenna group (111) turned on, orientation information of the beacon at the current moment.
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7.发明申请公开(公告)号：US20220163617A1
公开(公告)日：2022-05-26
申请号：US17104778
申请日：2020-11-25
发明人： Paul Denisowski
摘要： A method of localizing a near vertical incidence skywave emitter. At a first site a first elevation angle of an incoming signal issued by the near vertical incidence skywave emitter is measured. At a second site a second elevation angle of an incoming signal issued by the near vertical incidence skywave emitter is measured, wherein the second site is different to the first site. The first elevation angle measured and the second elevation angle measured are converted into a first length and a second length respectively, which represent the distance between the respective site and the estimated location of the near vertical incidence skywave emitter. The respective length is processed, thereby generating an estimated area of the near vertical incidence skywave emitter for each of the different sites such that at least two different estimated areas are generated. The estimated areas for each site are superimposed, thereby obtaining an area of interest encompassing the estimated location of the near vertical incidence skywave emitter. Further, a direction finding system is described.
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公开(公告)号：US20220141782A1
公开(公告)日：2022-05-05
申请号：US17452478
申请日：2021-10-27
摘要： An apparatus is disclosed, the apparatus comprising means for estimating a first angle (θ1) between a first path between a first base station and at least one target node and a second path between the first base station and a second base station, and estimating a second angle (θ2) between a third path between the second base station and the at least one target node and the second path. The apparatus also comprises means for determining a value (Δd) indicative of a difference between a first distance between the at least one target node and the first base station and a second distance between the at least one target node and the second base station, wherein determining the value is based on the estimated first and second angles (θ1) (θ2) and a known distance (l) between the first and second base stations.
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公开(公告)号：US11313942B2
公开(公告)日：2022-04-26
申请号：US16733141
申请日：2020-01-02
发明人： Kwang Jae Lim
摘要： Disclosed is a method of identifying location information of a signal source, the method including: identifying, at a first position, first position information and first posture information of an UAV equipped with a linear array antenna; identifying, after identifying a first measured azimuth between the signal source and the antenna at the first position, a first corrected azimuth; identifying, at at least one second position, at least one piece of second position information and at least one of second posture information of the UAV; identifying, after identifying at least one second measured azimuth between the signal source and the antenna at the at least one second position, at least one second corrected azimuth; and estimating the location information of the signal source by using the first position information, the first posture information, the first corrected azimuth, the second position information, the second posture information, and the second corrected azimuth.
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公开(公告)号：US11250494B2
公开(公告)日：2022-02-15
申请号：US14473173
申请日：2014-08-29
申请人： NCR Corporation
发明人： Honza Fedak
IPC分类号： G06Q30/06 , G06Q50/12 , H04W4/021 , G06Q20/20 , H04L29/08 , G06Q10/08 , G06Q20/32 , G01S5/02 , G01S5/04 , G01S1/02 , G01S5/00
摘要： Various systems, methods, and apparatuses are described for locating a patron and delivering an order. One example method may comprise detecting a mobile device of a customer at an establishment. The example method may further comprise determining a location of the mobile device of the customer within the establishment. The example method may further comprise linking the determined location to an order placed by the customer. The example method may further comprise enabling delivery of the order to the customer at the determined location. Similar and related methods, apparatuses, systems, and computer program products are also provided.
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