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公开(公告)号：US12085656B2
公开(公告)日：2024-09-10
申请号：US18332369
申请日：2023-06-09
摘要： A method for obtaining the direction of a signal incoming to a communication device is provided using a modal antenna that has multiple modes corresponding to multiple radiation patterns with a single feed.
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公开(公告)号：US20230324493A1
公开(公告)日：2023-10-12
申请号：US18332369
申请日：2023-06-09
摘要： A method for obtaining the direction of a signal incoming to a communication device is provided using a modal antenna that has multiple modes corresponding to multiple radiation patterns with a single feed.
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公开(公告)号：US20220334209A1
公开(公告)日：2022-10-20
申请号：US17693742
申请日：2022-03-14
发明人： Noriyasu KATO
摘要： A direction detection device includes: antennas that receive a received wave; an intensity difference imparting unit that imparts intensity differences different depending on the received-wave arrival direction to intensities of the received wave; a storage unit that stores an intensity difference table in which the intensity difference between two of the antennas is associated with the received-wave arrival direction, for each combination of any two of the antennas; a detector that detects an intensity difference between the two antennas and a phase difference between the two antennas, of the received wave; an extractor that extracts, from the table, a received-wave arrival direction corresponding to the detected intensity difference, for each combination; a calculation unit that calculates a received-wave arrival direction corresponding to the detected phase difference; and a comparator that compares the extracted received-wave arrival direction with the calculated received-wave arrival direction to acquire a matched received-wave arrival direction.
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公开(公告)号：US11175369B1
公开(公告)日：2021-11-16
申请号：US17394369
申请日：2021-08-04
发明人： Yariv Erad , Gad Vered , Menachem Erad , Uri Vered
摘要： The subject matter discloses a casing of a mobile electronic device, comprising: a body, comprising: two or more antennas for exchanging wireless signals with a target device; an electromagnetic absorbing material located between the two or more antennas; electrical circuitry for sending information concerning the wireless signals exchanged between the two or more antennas and the target device to a direction finding module, wherein the direction finding module is operative to determine a relative direction of the target device based on the wireless signals exchanged between the two or more antennas and the target device.
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公开(公告)号：US20210190895A1
公开(公告)日：2021-06-24
申请号：US17194885
申请日：2021-03-08
摘要： A method for obtaining the direction of a signal incoming to a communication device is provided using a modal antenna that has multiple modes corresponding to multiple radiation patterns with a single feed.
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公开(公告)号：US10976401B2
公开(公告)日：2021-04-13
申请号：US15764121
申请日：2016-09-27
申请人： THALES
摘要： The invention relates to a method for determining features of an electromagnetic wave received by a reception system (22), the reception system (22) comprising at least two reception channels (13), each reception channel (13) comprising an antenna (21) and a reception chain (14), each reception chain (14) being capable of delivering a value representative of the power delivered by the corresponding antenna (21) after reception of the wave by the reception system (22), the features comprising at least the direction of arrival of the received wave, the method comprising a step of providing a measurement vector, the method further comprising the following steps: comparing the measurement vector to calibration vectors, and determining features of the received wave from the result of the comparison.
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公开(公告)号：US10969458B1
公开(公告)日：2021-04-06
申请号：US16042364
申请日：2018-07-23
摘要： A system and method that can determine the direction of origin within 360 degrees around an antenna array for an emitted signal with a high degree of accuracy, even when the array is installed in a corrupted or “unclean” environment. Further, the provided system and method can provide a more accurate indication of direction despite polarization of the detected signal. Finally, the provided system and method can provide accurate results from phase measurements, amplitude measurements, or both phase and amplitude measurements, from an emitted signal where a phase network can be used to tailor the amplitude and phase variations versus spatial angle to best match the receiver measurement accuracies.
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公开(公告)号：US10687165B2
公开(公告)日：2020-06-16
申请号：US16028044
申请日：2018-07-05
申请人： HERE Global B.V.
发明人： Basel Hashisho
摘要： A positioning system, method and computer program product determine a position of a mobile device, such as in instances in which the mobile device is indoors. In regards to a positioning system, the positioning system is caused to determine a signal strength of signals received from at least first and second directive antennas of a beacon and at least a non-directive antenna of the beacon. The positioning system is also caused to normalize the signal strength of the signals received from the first and second directive antennas based on the signal strength of the signals received from the non-directive antenna in order to determine normalized signal strengths of the signals received from the first and second directive antennas. The positioning system is further caused to determine an angle at which the signals from the beacon propagate based upon the normalized signals strengths.
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公开(公告)号：US10455156B2
公开(公告)日：2019-10-22
申请号：US15772270
申请日：2016-02-29
发明人： Isaac Lagnado , Vali Ali
摘要： A technique includes sensing energy emitted from an object using an omnidirectional antenna of electronic device and sensing the energy using a unidirectional antenna of the electronic device. The technique includes, based at least in part on the sensing of energy using the omnidirectional antenna and the sensing of the energy using the unidirectional antenna, determining whether an image of the object is displayed in a camera viewfinder of the electronic device. The technique includes selectively causing the electronic device to generate an output based at least in part on the determination.
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公开(公告)号：US10241187B2
公开(公告)日：2019-03-26
申请号：US15383243
申请日：2016-12-19
发明人： Naoki Honma , Takeshi Nakayama , Takashi Morimoto
摘要： A sensor includes a reception antenna, a parasitic antenna terminating in a variable load, a controller, a transmitter transmitting a transmission signal, a receiver, a memory, and a processor. The controller sets an impedance value of the variable load. The receiver receives a first signal formed of signals received by the antennas and derived from the transmission signal, and the signal received by the parasitic antenna corresponding to the impedance value. The memory stores a first signal strength value of the first signal corresponding to the impedance value. The processor sets candidates of a complex propagation channel, calculates second signal strength values of a second signal respectively corresponding to the candidates, estimates a target complex propagation channel by selecting a candidate corresponding to a minimum difference among differences between the first signal strength value and the second signal strength values, and estimates a direction of arrival of the first signal.
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