公开(公告)号：US20250012886A1

公开(公告)日：2025-01-09

申请号：US18777049

申请日：2024-07-18

Applicant: Apple Inc.

Inventor： Aaron J. Cooper ,  Amin Tayebi ,  Carlo Di Nallo ,  Zheyu Wang

IPC: G01S3/48 ,  G01S3/02 ,  G01S3/04 ,  G01S3/46 ,  G01S3/72 ,  H01Q1/24 ,  H01Q1/52 ,  H01Q3/26 ,  H01Q5/25 ,  H01Q9/04 ,  H01Q21/06

Abstract: 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.

公开(公告)号：US20240426960A1

公开(公告)日：2024-12-26

申请号：US18828662

申请日：2024-09-09

Applicant: Apple Inc.

Inventor： Qiang Chen ,  Robert W. Brumley

IPC: G01S3/48 ,  G01S3/04 ,  G01S5/04 ,  H01Q5/25

Abstract: In some aspects, a mobile device may receive, from a transmitting device, the signal by a plurality of antennas. The mobile device may measure one or more phase differences among the signal received at the plurality of antennas. The mobile device may determine a first set of possible values for the angle of arrival that are consistent with the one or more phase differences. The mobile device may measure one or more signal values using one or more sensors of the mobile device. The mobile device may for each of the first set of possible values, determining a confidence score based on the one or more signal values. The mobile device may select, based on the confidence scores, one of the first set of possible values as the angle of arrival.

公开(公告)号：US12174288B2

公开(公告)日：2024-12-24

申请号：US17574682

申请日：2022-01-13

Applicant: Steradian Semiconductors Private Limited

Inventor： Ankit Sharma ,  Dibakar Sil ,  Sai Gunaranjan Pelluri ,  Apu Sivadas ,  Gireesh Rajendran

IPC: G01S13/42 ,  G01S3/48 ,  G01S5/06 ,  G01S13/89

Abstract: According to an aspect, a method of determining two dimensional (2D) angle of arrival (AoA) in a radar system comprising determining one dimensional (1D) AoA to generate a first set of (AoA), selecting a set of valid 1D AoA angles from the first set AoA, and determining the 2D AoA from the set of valid 1D AoA. Wherein the 1D AoA is determined on a first set of data received over a first uniform linear antenna array arranged in the first axis and the 2D AoA is determined on a second set data received over the first and the second MIMO antenna array arranged in the second axis and the set of valid 1D AoA in the first axis. Wherein the second antenna array need not be orthogonal to the first linear antenna array.

公开(公告)号：US12122194B2

公开(公告)日：2024-10-22

申请号：US17335478

申请日：2021-06-01

Applicant: Infineon Technologies AG

Inventor： Thomas Engl ,  Matthias Eberl ,  Manfred Eder ,  Michael Kandler ,  Maximilian Werner

IPC: B60C23/04 ,  G01S3/48 ,  H04B7/06 ,  H04B7/08 ,  H04W76/14

CPC classification number: B60C23/0433 ,  B60C23/0415 ,  G01S3/48 ,  H04B7/0602 ,  H04B7/0802 ,  H04W76/14

Abstract: 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.

公开(公告)号：US12044788B2

公开(公告)日：2024-07-23

申请号：US17383275

申请日：2021-07-22

Applicant: Apple Inc.

Inventor： Aaron J. Cooper ,  Amin Tayebi ,  Carlo Di Nallo ,  Zheyu Wang

IPC: G01S3/02 ,  G01S3/46 ,  G01S3/48 ,  H01Q5/25 ,  G01S3/04 ,  G01S3/72 ,  H01Q1/24 ,  H01Q1/52 ,  H01Q3/26 ,  H01Q9/04 ,  H01Q21/06

CPC classification number: G01S3/48 ,  G01S3/46 ,  H01Q5/25 ,  G01S3/023 ,  G01S3/043 ,  G01S3/72 ,  H01Q1/243 ,  H01Q1/523 ,  H01Q3/2605 ,  H01Q9/0407 ,  H01Q21/065

Abstract: 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.

公开(公告)号：US11910282B2

公开(公告)日：2024-02-20

申请号：US17497696

申请日：2021-10-08

Applicant: Mitsubishi Electric Corporation

Inventor： Tadashi Oshima ,  Nobuhiro Suzuki ,  Yoshiaki Tsuda ,  Takafumi Yokoe

IPC: H04W4/44 ,  G01S3/46 ,  G01S3/48

CPC classification number: H04W4/44 ,  G01S3/46 ,  G01S3/48

Abstract: 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.

公开(公告)号：US20240036145A1

公开(公告)日：2024-02-01

申请号：US18482046

申请日：2023-10-06

Applicant: Avago Technologies International Sales Pte. Limited

Inventor： Thomas Francis BAKER

IPC: G01S3/48 ,  G01S5/04 ,  G01S5/02 ,  H04W4/80 ,  H04W4/33 ,  H04L67/52

CPC classification number: G01S3/48 ,  G01S5/04 ,  G01S5/0231 ,  H04W4/80 ,  G01S5/0289 ,  H04W4/33 ,  G01S5/0242 ,  H04L67/52

Abstract: 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.

公开(公告)号：US11796623B1

公开(公告)日：2023-10-24

申请号：US17848778

申请日：2022-06-24

Applicant: Mano D. Judd

Inventor： Mano D. Judd

IPC: G01S7/40 ,  G01S3/02 ,  G01S3/48

CPC classification number: G01S3/023 ,  G01S3/48

Abstract: 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.

公开(公告)号：US20230266422A1

公开(公告)日：2023-08-24

申请号：US18170934

申请日：2023-02-17

Applicant: NXP B.V.

Inventor： Michael Schober ,  Pablo Corbalán Pelegrín ,  Ghiath Al-kadi

IPC: G01S3/48 ,  H04W64/00

CPC classification number: G01S3/48 ,  H04W64/003

Abstract: 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.

公开(公告)号：US11733340B1

公开(公告)日：2023-08-22

申请号：US16793395

申请日：2020-02-18

Applicant: BAE Systems Information and Electronic Systems Integration Inc.

Inventor： Richard Schiffmiller

IPC: G01S5/02 ,  G01S3/50 ,  G01S5/06 ,  G01S3/48 ,  G01S3/56 ,  G01S5/04

CPC classification number: G01S5/0221 ,  G01S3/50 ,  G01S5/06 ,  G01S3/48 ,  G01S3/56 ,  G01S5/04 ,  G01S5/0278

Abstract: 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.