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公开(公告)号：US20210278521A1
公开(公告)日：2021-09-09
申请号：US16810643
申请日：2020-03-05
Applicant: QUALCOMM Incorporated
Inventor： Evgeny LEVITAN , Amichai SANDEROVICH , Ariel Yaakov SAGI , Evyatar HEMO
Abstract: Apparatus and methods are disclosed for determining, at a radar device, range and Doppler velocity based on reduced Doppler-induced radar range sidelobes, including generating code sequence pairs such that a sum of autocorrelations of each code sequence pair has substantially no sidelobes, transmitting a plurality of pulses in an emitted burst, where each pulse of the emitted burst comprises a code sequence pair different from at least one other pulse of the burst such that the autocorrelation sum of the code sequence pairs of the two different pulses has sidelobes, receiving pulses in a reflected burst, each pulse a reflected copy of a corresponding pulse of the emitted burst, generating an autocorrelation sum for each reflected pulse with its corresponding emitted pulse, and determining range and Doppler velocity based on autocorrelation sums, where the sidelobes autocorrelation sums combine incoherently at reduced power.
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公开(公告)号：US20230079716A1
公开(公告)日：2023-03-16
申请号：US17795182
申请日：2021-02-04
Applicant: QUALCOMM Incorporated
Inventor： Sharad SAMBHWANI , Ferdinando OLIVIERI , Menucher MENUCHEHRY , Ariel Yaakov SAGI , Evyatar HEMO
IPC: H04S7/00
Abstract: Various aspects of the present disclosure generally relate to media systems. In some aspects, a media device may monitor, using a radio frequency (RF) sensor, an environment of the media device; determine, from a received RF signal obtained by the RF sensor, a user attribute of a user within the environment; and control an audio system, associated with the media device, to direct an audio beam toward or away from the user. Numerous other aspects are provided.
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公开(公告)号：US20200326422A1
公开(公告)日：2020-10-15
申请号：US16380775
申请日：2019-04-10
Applicant: QUALCOMM Incorporated
Inventor： Ariel Yaakov SAGI , Evyatar HEMO , Evgeny LEVITAN , Sharad SAMBHWANI , Amichai SANDEROVICH
IPC: G01S13/90 , G01S7/41 , G01S7/292 , H04B17/336 , H04B7/06
Abstract: Disclosed are techniques for liveliness detection. In an aspect, a radar sensor of an electronic device transmits a radar frame comprising a plurality of bursts, each burst comprising a plurality of radar pulses, and receives a plurality of reflected radar pulses. The electronic device generates a radar image representing azimuth, elevation, range, and slow time measurements for the radar frame based on the plurality of reflected pulses, applies a Doppler FFT to the radar image to convert the radar image to represent azimuth, elevation, range, and velocity measurements for the radar frame, identifies at least one area of motion in the radar image based on velocity bins of the radar image, and detects a target dynamic object based on a CFAR detection applied over the range and azimuth measurements and a SNR threshold of the received plurality of reflected pulses associated with the at least one area of motion.
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公开(公告)号：US20200321992A1
公开(公告)日：2020-10-08
申请号：US16908591
申请日：2020-06-22
Applicant: QUALCOMM Incorporated
Inventor： Ariel Yaakov SAGI , Igor GUTMAN
Abstract: A transmitter may be configured to generate a reference signal having a non-constant envelope for nonlinearity estimation by a receiver. The transmitter may transmit the reference signal. A receiver may be configured to receive, from the transmitter, the reference signal having the non-constant envelope. The receiver may estimate at least one nonlinearity characteristic based on the reference signal having the non-constant envelope. The receiver may transmit feedback based on the at least one nonlinearity characteristic and/or perform at least one digital post distortion (DPoD) operation based on the at least one nonlinearity characteristic.
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公开(公告)号：US20250093464A1
公开(公告)日：2025-03-20
申请号：US18470112
申请日：2023-09-19
Applicant: QUALCOMM Incorporated
Inventor： Igor GUTMAN , Tao LUO , Evgeny LEVITAN , Ariel Yaakov SAGI , Wooseok NAM
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device (WCD) may use training data associated with distortion of sensing signals. Some aspects more specifically relate to correcting distortion from a sensing signal in association with the training data. In some examples, the training data may include distortion measured in an environment without a sensing target. In some examples, the training data may include distortion measured via a dedicated hardware path within the WCD. The WCD may use the training data to identify whether an object is present or may use the training data to remove distortion from a sensing signal.
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Patent Agency Ranking
公开(公告)号：US20240250855A1
公开(公告)日：2024-07-25
申请号：US18158944
申请日：2023-01-24
Applicant: QUALCOMM Incorporated
Inventor： Igor GUTMAN , Tao LUO , Ariel Yaakov SAGI , Konstantinos DIMOU , Junyi LI , Jianghong LUO
CPC classification number: H04L25/03828 , H04L5/0048 , H04L5/0098
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may apply a crest factor reduction (CFR) to an input signal to generate an output signal, the applying the CFR to the input signal including applying a shaping filter that distributes a first portion of CFR noise within a transmission frequency band of the output signal and a second portion of the CFR noise in at least one air interface resource that is outside of the transmission frequency band of the output signal. The network node may transmit the output signal. Numerous other aspects are described.
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公开(公告)号：US20210034160A1
公开(公告)日：2021-02-04
申请号：US16935576
申请日：2020-07-22
Applicant: QUALCOMM Incorporated
Inventor： Eran HOF , Amichai SANDEROVICH , Evgeny LEVITAN , Ariel Yaakov SAGI , Evyatar HEMO , Sharad SAMBHWANI
IPC: G06F3/01 , H04B7/0426 , H01Q1/32
Abstract: Techniques for performing gesture recognition with an electronic device are disclosed where the electronic device has a wireless communications capability using beamforming techniques and includes a plurality of millimeter wave antenna modules, each antenna module including at least one transmit antenna and at least one receive antenna, the antennas being operable in one or more frequency ranges greater than 20 GHz. Performing gesture recognition includes: simultaneous operation of the at least one transmit antenna and the at least one receive antenna so as to provide a radar capability; and detecting a presence and motion of a reflective object by analyzing magnitude and phase of signals received by the at least one receive antenna and resulting from reflection of signals transmitted by the transmit antenna and reflected by the reflective object.
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公开(公告)号：US20240019565A1
公开(公告)日：2024-01-18
申请号：US18250533
申请日：2021-12-10
Applicant: QUALCOMM Incorporated
Inventor： Uri LEVY , Ariel Yaakov SAGI , Evyatar HEMO , Evgeny LEVITAN
IPC: G01S13/524 , G01S7/288 , G01S13/931 , G01S13/58 , G01S13/42
CPC classification number: G01S13/5242 , G01S7/2883 , G01S13/42 , G01S13/582 , G01S13/931
Abstract: A method of motion compensation for a Doppler radar system includes receiving, for each transmitted pulse of a set of transmitted pulses, a respective set of echo signals returned from a plurality of distance ranges, performing Doppler Fourier transforms on the sets of echo signals for the set of transmitted pulses to generate outputs that include detected signals in a plurality of velocity bins, and applying a respective pre-determined compensation phase vector to the detected signals in each velocity bin of the plurality of velocity bins. The respective pre-determined compensation phase vector applied to the detected signals in each velocity bin includes at least one of a first component proportional to a velocity of the velocity bin or a second component for compensating a phase compensation error associated with Doppler velocity aliasing.
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公开(公告)号：US20200295972A1
公开(公告)日：2020-09-17
申请号：US16502958
申请日：2019-07-03
Applicant: QUALCOMM Incorporated
Inventor： Evyatar HEMO , Evgeny LEVITAN , Ariel Yaakov SAGI , Sharad SAMBHWANI
IPC: H04L25/02 , H04B1/525 , H04B17/354 , H04B7/0408
Abstract: Techniques provided herein are directed toward enabling short-range proximity detection using radar sensors by reducing or eliminating OTA leakage. Embodiments generally include performing spatial cancellation by using a plurality of transmit/receive pairs of antenna elements to implement analog and/or digital leakage cancellation on the transmit and/or receive side. According to some embodiments null space projection cancellation, OTA leakage tracking, or adaptive minimum variance distortionless response (MVDR) beamforming may be performed to help preserve of the OTA leakage cancellation efficacy over time.
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公开(公告)号：US20190190552A1
公开(公告)日：2019-06-20
申请号：US16222884
申请日：2018-12-17
Applicant: QUALCOMM Incorporated
Inventor： Ariel Yaakov SAGI , Igor GUTMAN
Abstract: A transmitter may be configured to generate a reference signal having a non-constant envelope for nonlinearity estimation by a receiver. The transmitter may transmit the reference signal. A receiver may be configured to receive, from the transmitter, the reference signal having the non-constant envelope. The receiver may estimate at least one nonlinearity characteristic based on the reference signal having the non-constant envelope. The receiver may transmit feedback based on the at least one nonlinearity characteristic and/or perform at least one digital post distortion (DPoD) operation based on the at least one nonlinearity characteristic.
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