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41. 发明授权

US11012811B2 Multi-path mitigation in tracking objects using a distributed antenna system 有权
公开(公告)号：US11012811B2
公开(公告)日：2021-05-18
申请号：US16782870
申请日：2020-02-05
申请人： POLTE CORPORATION
发明人： Felix Markhovsky , Truman Prevatt
IPC分类号： H04W4/02 , G01S3/74 , G01S5/02 , G01S5/14 , G01S13/22 , G01S13/24 , G01S13/76 , G01S13/87 , H04L5/00 , H04W4/90 , G01S13/46
摘要： An autonomous system with no Customer Network Investment is described, wherein the system is configurable to operate on in a band in addition to the LTE band. Such system allows the definition of hybrid operations to accommodate the positioning reference signals (PRS) of LTE and already existing reference signals. The system can operate with PRS, with other reference signals such as cell-specific reference signals (CRS), or with both signal types. As such, the system provides the advantage of allowing network operator(s) to dynamically choose between modes of operation depending on circumstances, such as network throughput and compatibility. The system further enables information collected at a network device to be processed at a locate server without involving any processing at the network device.

42. 发明授权

US10976427B2 Method and system for measuring distance using wave signals 有权
公开(公告)号：US10976427B2
公开(公告)日：2021-04-13
申请号：US16310315
申请日：2017-05-08
申请人： POZI DEVELOPMENT KFT.
发明人： Andras Balogh , Karoly Lendvai , Kristof Attila Horvath , Gergely Ill , Akos Milankovich , Sandor Szabo
IPC分类号： G01S13/87 , G01S13/76
摘要： The object of the invention relates to a method for measuring distance using wave signals (l1, I2, v), the essence of which is a first and a second transceiver device (E, M) suitable for emitting and receiving wave signals (l1, I2, v) are provided, a first sensing device (O′) suitable for receiving wave signals (l1, I2, v) is arranged at a distance D′ from one of the first and second transceiver devices (E, M), wave signals (l1, I2, v) are sent and received by the first and second transceiver devices (E, M), which are also received by the first sensing device (O′), then on the basis of the distance D′, the time intervals (ΔE1E2, ΔM1M2, ΔO1′O2′, ΔE2E3, ΔM2M3, ΔO2′O3′) passing between the emitting and receipt of the wave signals (l1, I2, v) and the speed of propagation of the wave signals (l1, I2, v) the distance of the second transceiver device (M) from the first transceiver device (E), and the distance of the first sensing device (O′) from the first and second transceiver devices (E, M) are determined. The object of the invention also relates to a system (100) for measuring distance using wave signals (l1, I2, v), which contains a first and second transceiver device (E, M) suitable for emitting and receiving wave signals (l1, I2, v), as well as sensing devices (O′, 0″, O′″) suitable for receiving wave signals (l1, I2, v) arranged at a distance D′, D″, D′″ from one of the first and second transceiver devices (E, M), the essence of which is that the first and second transceiver devices (E, M), and the sensing devices (O′, 0″, O′″) are configured in a way suitable for implementing the method according to the invention.

43. 发明授权

US10966053B2 Ranging priority indication 有权
公开(公告)号：US10966053B2
公开(公告)日：2021-03-30
申请号：US16731171
申请日：2019-12-31
申请人： Apple Inc.
发明人： Srinivas Burugupalli , Qi Wang , Oren Shani , Christiaan A. Hartman , Danlin Li , Aniruddha S. Diwan
IPC分类号： H04W4/02 , G01S13/76
摘要： This disclosure relates to techniques for performing ranging wireless communication including prioritization. A first wireless device may transmit a request for ranging services to a second wireless device. The first wireless device may transmit an indication of a ranging priority to the second wireless device. The second wireless device may determine a granted ranging priority. The first and second wireless device may perform ranging communication according to the granted ranging priority.

44. 发明授权

US10955543B2 Station detection using frequency-diverse array signals 有权
公开(公告)号：US10955543B2
公开(公告)日：2021-03-23
申请号：US16721962
申请日：2019-12-20
申请人： Intel Corporation
发明人： Glen J. Anderson , Tae Young Yang , Jason A. Mix , Chieh-Yih Wan
IPC分类号： H04B7/12 , G01S13/76 , H04B17/27 , H04W64/00
摘要： A positioning device and positioning method in which a first wireless signal is transmitted along a first signal path having a first signal path angle that changes relative to time; second wireless signal data representing a response of a wireless station to the first wireless signal is received; a third wireless signal is transmitted along a second signal path; and an assumption that an obstruction is between the wireless communication device and the wireless station is generated if the wireless communication device receives a response from the wireless station to the first wireless signal but does not receive a response from the wireless station to the third wireless signal; wherein the second signal path is a linear path.

45. 发明授权

US10942250B2 Positioning system 有权
公开(公告)号：US10942250B2
公开(公告)日：2021-03-09
申请号：US15416004
申请日：2017-01-26
申请人： Rosemount Inc.
发明人： Avishai Bartov , Yossi Zlotnick
IPC分类号： G01S5/14 , G01S5/02 , H04W56/00 , G01S5/30 , G01S11/16 , G01S13/76 , G01S13/87 , G01C21/20
摘要： An ultrawide band two-way ranging based positioning system includes a number of active tags each having a position, and a number of beacons configured for location of a position of a tag of the plurality of active tags. The active tags and the beacons are synchronized continuously to a common time base.

46. 发明授权

US10938615B2 Signaling in an orthogonal frequency division multiplexed radar system 有权
公开(公告)号：US10938615B2
公开(公告)日：2021-03-02
申请号：US16372587
申请日：2019-04-02
申请人： Maxlinear, Inc.
发明人： Curtis Ling
IPC分类号： H04L27/26 , G01S13/89 , G01S13/76 , H01Q3/34
摘要： A transmitter of a radar system repeatedly transmits a first OFDM symbol into a scene to be characterized during a first time interval, and repeatedly transmits, during a second time interval that occurs after the first time interval, a second OFDM symbol into the scene. A receiver of the radar system generates a first channel response estimate for a first section of the scene based on: received reflections of the first symbol, at least one of which was received during transmission of the second OFDM symbol in the second time interval, and a first channel response estimate for a second section of the scene based on the first channel response estimate for the first section of the scene, received reflections of the first symbol, and received reflections of the second symbol. The receiver detects objects present in the scene based on the first channel response estimate for the first section of the scene and the first channel response estimate for the second section of the scene.

47. 发明授权

US10928506B1 Preventing commercial aircraft from becoming invisible to air traffic control 有权
公开(公告)号：US10928506B1
公开(公告)日：2021-02-23
申请号：US17007228
申请日：2020-08-31
申请人： Squawk On, LLC
发明人： Cooper C Woodring , Bret Joseph Petersen
IPC分类号： G01S13/76 , G01S13/91 , G01S13/87
摘要： A system and method for controlling multiple transponders in an aircraft to prevent the aircraft from becoming invisible to air traffic control. If a first transponder is turned off when the aircraft is airborne, a second transponder will automatically switch on. In some implementations, if the second transponder is turned off, a third transponder will automatically switch on. In one implementation, the third transponder cannot be turned off while the touchdown-relay confirms the aircraft is in the air. When the aircraft has landed, whichever one of the three transponders is on may be turned off. In some implementations the multiple transponders are arranged in a circular daisy chain.

48. 发明授权

US10921440B2 Personal protection system with RF time-of-flight ranging 有权
公开(公告)号：US10921440B2
公开(公告)日：2021-02-16
申请号：US16172123
申请日：2018-10-26
申请人： SAFEMINE AG
发明人： Thomas Kaufmann , Tommi Juhani Kauppinen
IPC分类号： G01S13/87 , G01S13/88 , G01S5/02 , G01S13/931 , G01S13/76
摘要： A radio frequency time-of-flight ranging system for protecting pedestrians and vehicles on mine sites or similar environments with heavy duty equipment, the system particularly locates people around heavy duty equipment and warns both pedestrian and equipment operator.

49. 发明申请

US20210033721A1 SECONDARY RADAR WITH MODE S ADAPTIVE BEAM CONTROL FOR EACH AIRCRAFT 有权
公开(公告)号：US20210033721A1
公开(公告)日：2021-02-04
申请号：US16933726
申请日：2020-07-20
申请人： THALES
发明人： Philippe BILLAUD , Sylvain COLIN
IPC分类号： G01S13/76
摘要： A radar includes an antenna having a radiating pattern forming a sum channel, a radiating pattern forming a difference channel and a pattern forming a control channel, and generates at least interrogation messages on the sum channel and interrogation messages on the control channel; transmits messages via the sum channel and via the control channel respectively, and receives and processes signals received via the sum, difference, and control channels, configured for detecting replies of targets on the signals received via the sum and difference channels and carrying out monopulse processing and RSLS processing on the replies. The transmission is configured such that, for each target, the width of the beam for transmitting interrogations and receiving mode S selective replies is controlled based on the movement window of the target and position of the axis of the antenna in the window, to provide detection of the target by reducing the number of selective interrogations by a selective sub-interrogation of the target while ensuring precise positioning in azimuth: by pre-locating the target at the edge of the main reception lobe of the antenna by deviation measurement between the signals received on the difference and sum channels; and by selectively re-interrogating the pre-located target in mode S by calculation of the roll-call signal nearest to the centre of the main lobe to ensure precision in azimuth, without any other unnecessary supplementary interrogation.

50. 发明授权

US10902691B2 Passive entry/passive start access systems with bidirectional tone exchange 有权
公开(公告)号：US10902691B2
公开(公告)日：2021-01-26
申请号：US16598292
申请日：2019-10-10
申请人： DENSO International America, Inc. , DENSO CORPORATION
发明人： Raymond Michael Stitt , Yuki Tokunaga
IPC分类号： G07C9/00 , B60R25/24 , H04B17/318 , H04B1/7073 , H04W12/12 , B60R25/20 , G01S13/84 , H01Q1/32 , H01Q25/04 , H04B7/06 , H04W4/40 , G07C9/28 , H01Q25/00 , H04B7/15 , G01S7/02 , G01S13/76
摘要： A system for accessing or providing operational control of a vehicle includes a network device and a control module. The network device includes: an antenna module including antennas with different polarized axes; a transmitter transmitting a series of tones via the antenna module from the vehicle to a second network device and change the frequencies of the tones during the transmission of the series of tones, where, at any moment in time, at least one of the antennas is not cross-polarized with an antenna of the second network device; and a receiver receiving the series of tones from the second network device. The control module: determines differences in phases of the series of tones versus differences in frequencies of the series of tones; and based on the differences in the phases and the differences in the frequencies, determines a distance between the first network device and the second network device.

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