公开(公告)号：WO2020131176A1

公开(公告)日：2020-06-25

申请号：PCT/US2019/050478

申请日：2019-09-10

Applicant: VEONEER US, INC.

Inventor： DOYLE, Scott B. ,  SLETTEN, Robert J. ,  ALEXANIAN, Angelos

IPC: G01S13/88 ,  G01S13/93 ,  H01Q1/40

Abstract: Antenna assemblies for vehicles, such as RADAR sensor antenna assemblies. In some embodiments, the assembly may comprise an antenna block defining an array of waveguide grooves on a first side of the antenna block. A slotted layer comprising a plurality of slots may be coupled with the antenna block with the slots at least partially aligned with the waveguide grooves of the antenna block. An adhesive layer may be positioned in between the antenna block and the slotted layer.

公开(公告)号：WO2020097494A1

公开(公告)日：2020-05-14

申请号：PCT/US2019/060519

申请日：2019-11-08

Applicant: FULL-SWING GOLF, INC.

Inventor： DELEON, John ,  NICORA, Daniel ,  WANG, Zongbo

IPC: A63B69/36 ,  A63B24/00 ,  G01S13/88

Abstract: A launch monitor for golf training includes both a continuous wave radar transmitter and a frequency modulated continuous wave radar transmitter. A first set of golf ball trajectory parameters are estimated with the continuous wave radar transmitter and a second, different set of golf ball trajectory parameters are estimated with the frequency modulated continuous wave radar transmitter. The array of transmitters and receivers may be non-uniform.

公开(公告)号：WO2020086215A1

公开(公告)日：2020-04-30

申请号：PCT/US2019/053602

申请日：2019-09-27

Applicant: GOOGLE LLC

Inventor： GIUSTI, Leonardo ,  POUPYREV, Ivan ,  HAYASHI, Eiji ,  AMIHOOD, Patrick M.

IPC: G06F3/01 ,  G01S13/88 ,  G06F1/3231

Abstract: This document describes techniques and systems that enable a smartphone-based radar system for determining user intention in a lower-power mode. The techniques and systems use a radar field (110) to enable the smartphone to accurately determine the presence or absence of a user (112) and further determine the intention of the user to interact with the smartphone (716, 718, 720, 722). Using these techniques, the smartphone can account for the user's nonverbal communication cues to determine and maintain an awareness of users in its environment, and only respond to direct interactions once a user has demonstrated an intention to interact, which preserves battery power. The smartphone may determine the user's intention by recognizing various cues from the user, such as a change in position relative to the smartphone, a change in posture, or by an explicit action, such as a gesture.

公开(公告)号：WO2020072297A1

公开(公告)日：2020-04-09

申请号：PCT/US2019/053425

申请日：2019-09-27

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY

Inventor： RONG, Yu ,  BLISS, Daniel W.

IPC: A61B5/024 ,  G01S13/02 ,  G01S13/10 ,  G01S13/88

Abstract: Methods, systems, and devices for direct radio frequency (RF) signal processing for heart rate (HR) monitoring using ultra-wide band (UWB) impulse radar are presented. A radar sensor is able to directly sample a received signal at RF which satisfies the Nyquist sampling rate, preserving a subject's vital sign information in the received signal. The vital sign information can be extracted directly from a raw RF signal and thus down conversion to a complex baseband is not required. The HR monitoring performance from the proposed direct RF signal processing technique provides an improvement in continuous HR monitoring as compared against existing methods using a complex baseband signal and/or other measurement techniques.

公开(公告)号：WO2020060694A1

公开(公告)日：2020-03-26

申请号：PCT/US2019/046177

申请日：2019-08-12

Applicant: ECOLAB USA INC.

Inventor： AGARWAL, Ashish ,  DAVIS, Brandon M. ,  VON DRASEK, William ,  LAKSHMANAN, Divigar

IPC: G01F23/00 ,  G01F23/26 ,  G01F23/284 ,  G01F23/296 ,  G01B5/00 ,  G01S13/88

Abstract: Disclosed are devices and methods for determining a fluid level of and the amount of fluid remaining in a container. A portable measuring device can include a housing, a sensor, and a measurement system. The sensor can be supported by the housing and can detect a fluid level of the container. The measurement system can be configured to receive information including a measurement of the container, to determine an amount of fluid in the container based on a measurement of the container and a detected fluid level of the container, and to output the amount of fluid in the container and geometric information of the container. A method can include supplying such a device, placing the device proximal to or in abutment with and moving the device along an outer surface of the container, providing a signal to a user, and outputting the amount of fluid in a container.

公开(公告)号：WO2020040966A1

公开(公告)日：2020-02-27

申请号：PCT/US2019/045128

申请日：2019-08-05

Applicant: GOOGLE LLC

Inventor： GIUSTI, Leonardo ,  POUPYREV, Ivan ,  AMIHOOD, Patrick M.

IPC: G06F3/01 ,  G01S13/86 ,  G01S13/88

Abstract: This document describes techniques and systems that enable a smartphone, system and method comprising a radar system. The techniques and systems use a radar field to accurately determine three-dimensional (3D) gestures that can be used to interact with augmented-reality (AR) objects that are presented on a display of an electronic device, such as a smartphone. These techniques allow the user to make 3D gestures from a distance—the user does not have to hold the electronic device steady while touching the screen and the gestures do not obstruct the user's view of the AR objects presented on the display.

公开(公告)号：WO2020040919A1

公开(公告)日：2020-02-27

申请号：PCT/US2019/042852

申请日：2019-07-22

Applicant: GOOGLE LLC

Inventor： LIEN, Jaime ,  PONCE MADRIGAL, Octavio ,  OLSON, Erik, M. ,  AMIHOOD, Patrick, M.

IPC: G01S5/02 ,  G01S7/288 ,  G01S7/295 ,  G01S7/35 ,  G01S7/41 ,  G01S13/58 ,  G01S13/62 ,  G01S13/72 ,  G01S13/87 ,  G01S13/88 ,  G01S15/89 ,  G01S13/02

Abstract: Techniques and apparatuses are described that implement a smartphone-based radar system capable of detecting user gestures using coherent multi-look radar processing. Different approaches use a multi-look interferometer or a multi-look beamformer to coherently average multiple looks of a distributed target across two or more receive channels according to a window that spans one or more dimensions in time, range, or Doppler frequency. By coherently averaging the multiple looks, a radar system generates radar data with higher gain and less noise. This enables the radar system to achieve higher accuracies and be implemented within a variety of different devices. With these accuracies, the radar system can support a variety of different applications, including gesture recognition or presence detection.

公开(公告)号：WO2020023596A1

公开(公告)日：2020-01-30

申请号：PCT/US2019/043177

申请日：2019-07-24

Applicant: RAPISCAN SYSTEMS, INC.

Inventor： MORTON, Edward, James

IPC: G01S13/88 ,  G01S13/02 ,  G01S13/04 ,  G01S13/06 ,  G01S13/87 ,  G01S13/89

Abstract: A portal for scanning a person walking through the portal, wherein the person is carrying at least one object on the person's body, the portal having first and second vertical sides connected at their tops by a horizontal side; a transceiver positioned on the horizontal side to propagate radiation downwards on the person and receive at least one of first, second and third scan data, wherein the first scan data corresponds to a front-view, the second scan data corresponds to a plan-view and the third scan data corresponds to a back-view of the person; and at least one processor associated with the transceiver to process at least one of the first, second and third scan data to determine a location and dielectric signature of the at least one object.

公开(公告)号：WO2019216819A1

公开(公告)日：2019-11-14

申请号：PCT/SE2019/050419

申请日：2019-05-11

Applicant: WIDMAN, Anders

Inventor： WIDMAN, Anders

IPC: H04L5/06 ,  G01R23/00 ,  G01S7/02 ,  G01S7/285 ,  G01S13/88

Abstract: The invention is a method to create an instantaneously wideband digital receiver system despite using a digital receiver with substantially smaller bandwidth than the complete system. The invention solves the problem by using frequency coding for different RF channels in the system. Incoming signals are split into analogue frequency channels and the signal in each channel is divided into two paths. Local oscillators and mixers are used to convert the RF signals to an intermediate frequency suitable for digital sampling. After mixing with different local oscillator frequencies the two signals from an RF channels are summed. Each incoming frequency will therefore be converted to a frequency pair. Each RF channel has a unique frequency difference for the frequency pair. The intermediate frequencies from all RF channels are summed before digital sampling. By extracting the instantaneous frequency difference measured in the signal processing following the sampling, the origin RF channel, and hence the absolute frequency, can be determined. The method functions also with simultaneous occurring signals in the same or different RF channels.

公开(公告)号：WO2019211158A1

公开(公告)日：2019-11-07

申请号：PCT/EP2019/060604

申请日：2019-04-25

Applicant: ROBIN RADAR FACILITIES BV

Inventor： HAMMINGA, Siete ,  VAN DER MEER, Rob

IPC: H01Q3/04 ,  H01Q21/00 ,  H01Q25/00 ,  G01S13/34 ,  G01S13/42 ,  G01S13/88 ,  H01Q1/52

Abstract: There is provided a radar system comprising a first and a second antenna module, where each of the antenna modules comprises a first planar slotted waveguide antenna array configured for radiating electromagnetic waves, and a second planar slotted waveguide antenna array configured for receiving electromagnetic waves. The radar system further comprises a rotation system configured for supporting and rotating the first and second antenna modules around a vertical axis, with the first and second antenna modules arranged in a back-to-back position on opposite sides of a plane intersecting the vertical axis of rotation. There is also provided another radar system comprising a first radar antenna module, which radar module comprises a first planar slotted waveguide antenna array configured for radiating electromagnetic waves, and a second planar slotted waveguide antenna array configured for receiving electromagnetic waves, where each of the planar slotted waveguide antenna arrays comprises several longitudinal extending waveguide columns, where the waveguide columns have a front side and a rear side with a plurality of cavity slots on the front side. The front side of the columns holding the cavity slots of the first planar antenna array are positioned in a first plane and the front side of the columns holding the cavity slots of the second planar antenna array are positioned in a second plane parallel to the first plane, where the first and second antenna arrays may be positioned at a distance to each other in a direction to the first and second planes. The first and second parallel planes may also or alternatively be offset with a minimum perpendicular array distance to each other in a direction perpendicular to the planes.