公开(公告)号：US11860294B2

公开(公告)日：2024-01-02

申请号：US17410497

申请日：2021-08-24

Applicant: Google LLC

Inventor： Luzhou Xu ,  Jiang Zhu ,  Jaime Lien ,  David J. Weber

IPC: G01S7/02 ,  G01S13/30 ,  G01S13/87

CPC classification number: G01S7/024 ,  G01S13/30 ,  G01S13/87

Abstract: Techniques and apparatuses are described that implement electromagnetic vector sensors (EMVS) for a smart-device-based radar system. Instead of including an antenna array of similar antenna elements, the radar system includes two or more electromagnetic vector sensors. At least one of the electromagnetic vector sensors is used for transmission and at least another of the electromagnetic vector sensors is used for reception. Each electromagnetic vector sensor includes a group of antennas with different antenna patterns, orientations, and/or polarizations. An overall footprint of the two electromagnetic vector sensors (e.g., one for transmission and one for reception) can be smaller than antenna arrays used by other radar systems, thereby enabling the radar system to be implemented within space-constrained devices.

公开(公告)号：US20220057476A1

公开(公告)日：2022-02-24

申请号：US17410497

申请日：2021-08-24

Applicant: Google LLC

Inventor： Luzhou Xu ,  Jiang Zhu ,  Jaime Lien ,  David J. Weber

IPC: G01S7/02 ,  G01S13/87 ,  G01S13/30

Abstract: Techniques and apparatuses are described that implement electromagnetic vector sensors (EMVS) for a smart-device-based radar system. Instead of including an antenna array of similar antenna elements, the radar system includes two or more electromagnetic vector sensors. At least one of the electromagnetic vector sensors is used for transmission and at least another of the electromagnetic vector sensors is used for reception. Each electromagnetic vector sensor includes a group of antennas with different antenna patterns, orientations, and/or polarizations. An overall footprint of the two electromagnetic vector sensors (e.g., one for transmission and one for reception) can be smaller than antenna arrays used by other radar systems, thereby enabling the radar system to be implemented within space-constrained devices.

公开(公告)号：US11693086B2

公开(公告)日：2023-07-04

申请号：US16457914

申请日：2019-06-28

Applicant: Google LLC

Inventor： David J. Weber ,  Maryam Tabesh ,  Jian Wang ,  Camille Ann Lesko ,  Alexis K. Salazar ,  Abhijit Aroon Shah

IPC: G01S7/03 ,  H02J50/10 ,  H02J50/70 ,  G01S7/35 ,  G01S7/41 ,  G01S13/86 ,  G01S19/13 ,  H02J7/02 ,  H04M1/02 ,  H04R1/02

CPC classification number: G01S7/03 ,  G01S7/352 ,  G01S7/415 ,  G01S13/867 ,  G01S19/13 ,  H02J7/02 ,  H02J50/10 ,  H02J50/70 ,  H04M1/0202 ,  H04R1/028 ,  H04R2499/11

Abstract: Techniques and apparatuses are described that implement a smart device with an integrated radar system. The radar integrated circuit is positioned towards an upper-middle portion of a smart device to facilitate gesture recognition and reduce a false-alarm rate associated with other non-gesture related motions of a user. The radar integrated circuit is also positioned away from Global Navigation Satellite System (GNSS) antennas and a wireless charging receiver coil to reduce interference. The radar system operates in a low-power mode to reduce power consumption and facilitate mobile operation of the smart device. By limiting a footprint and power consumption of the radar system, the smart device can include other desirable features in a space-limited package (e.g., a camera, a fingerprint sensor, a display, and so forth).

公开(公告)号：US20220302576A1

公开(公告)日：2022-09-22

申请号：US17616059

申请日：2020-06-24

Applicant: Google LLC

Inventor： Jian Wang ,  David J. Weber ,  Jiang Zhu ,  Maryam Tabesh ,  Arnold Feldman ,  Jaime Lien

IPC: H01Q1/24 ,  G06F3/01 ,  H01Q1/44 ,  G01S13/88

Abstract: Devices are provided that include radar circuits arranged to send and receive radar signals that can be used to, for example, detect gestures performed in the vicinity of the device. Arrangements of the circuits and associated antennas allow for the device to have no bezel or a minimal bezel.

公开(公告)号：US12142818B2

公开(公告)日：2024-11-12

申请号：US17616059

申请日：2020-06-24

Applicant: Google LLC

Inventor： Jian Wang ,  David J. Weber ,  Jiang Zhu ,  Maryam Tabesh ,  Arnold Feldman ,  Jaime Lien

IPC: G06F3/041 ,  G01S13/88 ,  G06F3/01 ,  G06F3/044 ,  G06F3/0488 ,  H01Q1/24 ,  H01Q1/44

Abstract: Devices are provided that include radar circuits arranged to send and receive radar signals that can be used to, for example, detect gestures performed in the vicinity of the device. Arrangements of the circuits and associated antennas allow for the device to have no bezel or a minimal bezel.