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公开(公告)号：US20250044411A1
公开(公告)日：2025-02-06
申请号：US18759301
申请日：2024-06-28
Applicant: Samsung Electronics Co., Ltd.
Inventor： Viet Nguyen , Yuming Zhu , Qiang Xie
Abstract: An embodiment includes a method of multi-user gesture recognition includes determining positions of a plurality of users based on a first radar information from at least one radar, determining a plurality of regions of interest for the plurality of users based on positions of the plurality of users, in a first duty cycle of a plurality of duty cycles, obtaining a second radar information using a first radar configuration that includes a first set of parameters for gesture recognition at a range of distances based on the plurality of regions of interest, in a second duty cycle, obtaining a third radar information using a second radar configuration, and detecting a first user gesture from a first user of the plurality of users and a second user gesture from a second user of the plurality of users based on the second and third radar information.
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Patent Agency Ranking
公开(公告)号：US12192034B2
公开(公告)日：2025-01-07
申请号：US18160873
申请日：2023-01-27
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hoang Viet Nguyen , Yuming Zhu , Jiho Shin , Qiang Xie
Abstract: A method includes obtaining a channel impulse response (CIR) based on multiple ultrawide band (UWB) measurements between a mobile device and a target object. The method also includes estimating a first distance between the mobile device and the target object based on an energy of the CIR. The method also includes estimating a second distance between the mobile device and the target object based on a phase of the CIR. The method also includes obtaining an estimated distance between the mobile device and the target object based on at least one of the first distance and the second distance.
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公开(公告)号：US20240361447A1
公开(公告)日：2024-10-31
申请号：US18626235
申请日：2024-04-03
Applicant: Samsung Electronics Co., Ltd.
Inventor： Neha Dawar , Yuming Zhu , Rebal Al Jurdi , Boon Loong Ng , Jianzhong Zhang , Qiang Xie , Sejong Yoon
CPC classification number: G01S13/76 , G01S13/0209 , H04W64/00
Abstract: A method includes determining, for each time interval in a series of time intervals, (i) whether at least one wireless signal measurement was received in the time interval, each wireless signal measurement associated with a pair of anchors, and (ii) whether at least one step was detected in the time interval. The method also includes selecting a state of a tracking filter state machine based on whether the at least one wireless signal measurement was received in the time interval and whether the at least one step was detected in the time interval. The method further includes determining a location of an object using the tracking filter state machine based on the selected state.
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公开(公告)号：US20240310504A1
公开(公告)日：2024-09-19
申请号：US18528547
申请日：2023-12-04
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hoang Viet Nguyen , Yuming Zhu , Guanbo Chen , Songwei Li , Qiang Xie
CPC classification number: G01S13/56 , G01S7/415 , G01S13/0209
Abstract: A method for presence detection using ultra-wide band (UWB) radar includes obtaining a set of centroids based on UWB radar measurements. The method includes, for each respective centroid among the set of centroids: classifying the respective centroid as one among human movement and non-human movement, based on a set of features for the respective centroid satisfying a human-movement condition; and when the respective centroid is classified as the human movement, determining a two-dimensional (2D) location of human movement based on the UWB radar measurements. The method includes updating a current state value that indicates whether a human presence is detected inside boundaries of a 3D space, based at least in part on the classification of each of the respective centroids among the set of centroids.
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公开(公告)号：US20230246882A1
公开(公告)日：2023-08-03
申请号：US18160873
申请日：2023-01-27
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hoang Viet Nguyen , Yuming Zhu , Jiho Shin , Qiang Xie
CPC classification number: H04L25/0212 , H04W64/003
Abstract: A method includes obtaining a channel impulse response (CIR) based on multiple ultrawide band (UWB) measurements between a mobile device and a target object. The method also includes estimating a first distance between the mobile device and the target object based on an energy of the CIR. The method also includes estimating a second distance between the mobile device and the target object based on a phase of the CIR. The method also includes obtaining an estimated distance between the mobile device and the target object based on at least one of the first distance and the second distance.
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公开(公告)号：US20240357320A1
公开(公告)日：2024-10-24
申请号：US18627365
申请日：2024-04-04
Applicant: Samsung Electronics Co., Ltd.
Inventor： Neha Dawar , Yuming Zhu , Rebal Al Jurdi , Boon Loong Ng , Jianzhong Zhang , Qiang Xie , Sejong Yoon
CPC classification number: H04W4/029 , G01C21/183 , G01C21/206 , H04W64/006
Abstract: A method includes receiving at least one wireless signal measurement and motion sensor measurements. The method also includes generating a location estimate based on the at least one wireless signal measurement. The method also includes determining whether a step is present based on the motion sensor measurements. The method also includes, in response to determining that a step is present, determining a step heading offset based on the location estimate and the motion sensor measurements, and determining a step length and heading based on the motion sensor measurements and the step heading offset. The method also includes determining a location of an object based on at least one of (i) the at least one wireless signal measurement or (ii) the step length and heading.
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