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公开(公告)号：US12122194B2
公开(公告)日：2024-10-22
申请号：US17335478
申请日：2021-06-01
CPC分类号： B60C23/0433 , B60C23/0415 , G01S3/48 , H04B7/0602 , H04B7/0802 , H04W76/14
摘要： A method of communicating with a tire pressure monitoring system (TPMS) sensor module includes transmitting, by the TPMS sensor module, a TPMS signal that includes a sensor identifier of the TPMS sensor module; performing, by an interface device, an angle of arrival measurement on the TPMS signal to whether an angular direction thereof with respect to an antenna array of the interface device is within a predetermined angular window; and determining, by the interface device, whether or not to communicate with the TPMS sensor module including establishing communication with the TPMS sensor module on a condition that the angular direction is within the predetermined angular window and not establishing communication with the TPMS sensor module on a condition that the determined angular direction is not within the predetermined angular window.
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公开(公告)号：US12044788B2
公开(公告)日：2024-07-23
申请号：US17383275
申请日：2021-07-22
申请人： Apple Inc.
发明人： Aaron J. Cooper , Amin Tayebi , Carlo Di Nallo , Zheyu Wang
IPC分类号： G01S3/02 , G01S3/46 , G01S3/48 , H01Q5/25 , G01S3/04 , G01S3/72 , H01Q1/24 , H01Q1/52 , H01Q3/26 , H01Q9/04 , H01Q21/06
CPC分类号： G01S3/48 , G01S3/46 , H01Q5/25 , G01S3/023 , G01S3/043 , G01S3/72 , H01Q1/243 , H01Q1/523 , H01Q3/2605 , H01Q9/0407 , H01Q21/065
摘要： An electronic device may be provided with wireless circuitry that includes first, second, and third antennas used to determine the position and orientation of the electronic device relative to external equipment. The antennas may include patch elements on respective substrates mounted to a flexible printed circuit. Each substrate may include fences of conductive vias that are coupled to ground and that laterally surround the corresponding patch element. Control circuitry may identify phase differences between the first and second antennas and between the second and third antennas and may identify an angle of arrival of received ultra-wideband signals using the phase differences. The control circuitry may compare the phase differences to a set of predetermined surfaces of phase differences to identify environmental loading conditions for the antenna. The control circuitry may correct the angle of arrival using offsets identified based on the environmental loading conditions.
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公开(公告)号：US11910282B2
公开(公告)日：2024-02-20
申请号：US17497696
申请日：2021-10-08
摘要： Determination is made as to whether or not to enable communications by a communication processing unit with an on-board unit, on the basis of a receive strength detected from a radio wave received via a communication antenna, and the angle of arrival and the receive strength of a direct wave and the angle of arrival and the receive strength of a reflected wave, the angles of arrival and the receive strengths being estimated from one or more radio waves received via an angle measurement antenna.
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公开(公告)号：US20240036145A1
公开(公告)日：2024-02-01
申请号：US18482046
申请日：2023-10-06
发明人： Thomas Francis BAKER
CPC分类号： G01S3/48 , G01S5/04 , G01S5/0231 , H04W4/80 , G01S5/0289 , H04W4/33 , G01S5/0242 , H04L67/52
摘要： A system for detecting angle-of-arrival (AoA) includes a first device and at least one second device. The first device transmits a Bluetooth (BT) packet, and the second device receives the BT packet and determines an AoA of the BT packet. The second device includes a first radio-frequency (RF) antenna to receive a first RF signal and a second RF antenna to receive a second RF signal. The second device also includes a first BT core and a second BT-core and a processing circuit. The first BT core is coupled to the first RF antenna and is used to generate a first signal based on the first RF signal. The second BT core is coupled to the second RF antenna and generates a second signal based on the second RF signal. The processing circuit measures a phase difference between the first signal and the second signal and determines the AoA based on the phase difference.
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公开(公告)号：US11796623B1
公开(公告)日：2023-10-24
申请号：US17848778
申请日：2022-06-24
申请人： Mano D. Judd
发明人： Mano D. Judd
摘要： The present invention, Methods for RF or Acoustic Boresighting, is a collection of various methods of accounting for and correcting for the errors that occur in a receiver during signal collection, and are an extension of patent Ser. No. 10/185,022, by using Radio Frequency coupling as opposed to switches. These updated methods enable a means to ensure a collected signal can be calibrated at any point during the signal collection period without having to cease signal collection in order to switch in a reference signal. These methods also account for signal bandwidth and signal type, including wideband, pulse, and continuous signals.
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6.发明公开公开(公告)号：US20230266422A1
公开(公告)日：2023-08-24
申请号：US18170934
申请日：2023-02-17
申请人： NXP B.V.
CPC分类号： G01S3/48 , H04W64/003
摘要： A method for determining an angle of arrival at a communication device is described. The method comprises performing a message exchange between the communication device and a further communication device. The message exchange comprises receiving at least one first message associated with a first frequency at the communication device by means of a first antenna and a second antenna and receiving at least one second message associated with a second frequency at the communication device by means of the first antenna and the second antenna. The method further comprises determining the angle of arrival defined by an orientation of the communication device and a transmission direction of the message exchange, wherein the angle of arrival is determined based on the received first message and the received second message. Furthermore, a corresponding communication device is described.
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公开(公告)号：US11733340B1
公开(公告)日：2023-08-22
申请号：US16793395
申请日：2020-02-18
发明人： Richard Schiffmiller
CPC分类号： G01S5/0221 , G01S3/50 , G01S5/06 , G01S3/48 , G01S3/56 , G01S5/04 , G01S5/0278
摘要： Techniques are disclosed for determining a true bearing angle from an airborne platform to a source of a radar signal. In an embodiment, a grid is generated based on a coarse range to, and angle-of-arrival of, an electromagnetic signal. The grid represents a geographic area thought to contain the emission source. A measured spatial angle is computed for each pulse of the signal received during a data collection interval. Hypothesized spatial angles are computed for a point in each grid box in the grid. A score is generated for each grid point based on the computed hypothesized spatial angles for the grid point and the measured spatial angles. The grid point having the lowest score is identified as a seed location and is used to launch a Nelder-Mead algorithm that converges on a point in the grid. A true bearing angle to the source of a radar angle is computed to the point provided by the Nelder-Mead algorithm.
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公开(公告)号：US11696092B2
公开(公告)日：2023-07-04
申请号：US16915381
申请日：2020-06-29
摘要： Disclosed are embodiments that determine a location of a first wireless device based on estimates of two other wireless devices. Each of the other wireless devices is assigned or defines its own plurality of regions. Each wireless device estimates a location of the first wireless device with respect to its assigned or defined plurality of regions. One of the estimates is then translated to the other device's plurality of regions. The two estimates are then combined to estimate the location of the first wireless device.
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公开(公告)号：US11668781B2
公开(公告)日：2023-06-06
申请号：US17325029
申请日：2021-05-19
发明人： Matan Ben-Shachar , Oren Shani , Yaron Alpert , Yuval Jakira
摘要： Techniques for determining an angle-of-arrival of a wireless transmission are provided, including receiving, with a first antenna, at least a first portion of a wireless transmission, determining when a second portion of the wireless transmission will be received, switching to the second antenna to receive the second portion of the wireless transmission, determining an angle of arrival of the wireless transmission based on the first portion and the second portion of the wireless transmission, and outputting the angle of arrival of the wireless transmission.
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公开(公告)号：US11616574B2
公开(公告)日：2023-03-28
申请号：US17184446
申请日：2021-02-24
发明人： Jose E. Velazco
IPC分类号： H04B10/118 , H04B10/61 , H04B10/50 , H04B10/25 , H01S5/042 , H01Q3/26 , G02B27/30 , G02B26/08 , G01S3/48
摘要： Optical ground terminals (OGT) allowing high optical rate communications for line of sight and non-line of sight operating conditions are disclosed. The described devices include a multifaceted structure where optical telescopes, phase array antennas, and arrays of optical detectors are disposed. Methods to calculate angle-of-arrival based the contributions from optical detectors are also disclosed.
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