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公开(公告)号：US20230228844A1
公开(公告)日：2023-07-20
申请号：US18149651
申请日：2023-01-03
Applicant: Samsung Electronics Co., Ltd.
Inventor： Siddharth K. Advani , Shadi Abu-Surra , Gang Xu , Vishnu Vardhan Ratnam
CPC classification number: G01S7/282 , H04B7/0617 , G01S13/582 , G01S7/006 , G01S7/415
Abstract: A method for real-time THz sensing using true time delay (TTD) is implemented by a base station and includes transmitting, by a transceiver that includes TDD elements and phase shifters configured in the transceiver, simultaneous frequency dependent (SFD) beams to scan an environment at a first granularity to detect a spatial cluster target. Each of the SFD beams corresponds to a different phase angle and different frequency. The method includes determining, among the SFD beams, a subset of beams that detected the spatial cluster target. The method includes beam switching, by the transceiver, using time division multiplexing (TDM) and a TDM bandwidth to scan a portion of the environment at phase angles corresponding to the subset of beams and at a second granularity finer than the first granularity. The method includes combining data received from the SFD beams, by multiple threads that concurrently process data received from the SFD beams.
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公开(公告)号：US20210132213A1
公开(公告)日：2021-05-06
申请号：US16949308
申请日：2020-10-23
Applicant: Samsung Electronics Co., Ltd.
Inventor： Siddharth K. Advani , Neha Dawar , Vitali Loseu , Mandar Kulkarni , Yuming Zhu , Chiyu Zhang , Songwei Li , Jianzhong Zhang
Abstract: An electronic device includes a Lidar sensor, a radar sensor, and a processor. The processor is configured to identify one or more objects from Lidar scans. The processor is configured to transmit, via the radar sensor, radar signals for object detection based on reflections of the radar signals received by the radar sensor. While the electronic device travels the area, the processor is configured to generate a first map indicating one or more objects within an area based on the Lidar scans and a second map based on the radar signals. The processor is configured to determine whether the second map indicates a missed object at the portion of the first map that is unoccupied. In response to a determination that the second map indicates the missed object, the processor is configured to modify the first map with the missed object.
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公开(公告)号：US20240329227A1
公开(公告)日：2024-10-03
申请号：US18595135
申请日：2024-03-04
Applicant: Samsung Electronics Co., Ltd.
Inventor： Guanbo Chen , Yuming Zhu , Hao-Hsuan Chang , Hao Chen , Songwei Li , Hoang Viet Nguyen , Siddharth K. Advani
IPC: G01S13/56 , H04B17/309
CPC classification number: G01S13/56 , H04B17/309
Abstract: A method includes obtaining wireless fidelity (Wi-Fi) based channel state information (CSI). The method also includes filtering the CSI to remove radio frequency (RF) interference. The method further includes executing a motion detection module that detects for motion in a space based on whether macro-movements are present in the filtered CSI, and provides an indication that the space is occupied upon detecting motion in the space. The method also includes, in response to the indication that the space is occupied, executing an occupancy detection module that detects whether the space is still occupied based on whether micro-movements and breath signals are present in the filtered CSI, retains the indication that the space is occupied upon detecting that the space is still occupied, and provides an indication that the space is not occupied upon detecting that the space is no longer occupied.
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公开(公告)号：US12019147B2
公开(公告)日：2024-06-25
申请号：US16949308
申请日：2020-10-23
Applicant: Samsung Electronics Co., Ltd.
Inventor： Siddharth K. Advani , Neha Dawar , Vitali Loseu , Mandar Kulkarni , Yuming Zhu , Chiyu Zhang , Songwei Li , Jianzhong Zhang
CPC classification number: G01S13/865 , G01S7/003 , G01S13/42 , G01S13/89 , G01S17/89
Abstract: An electronic device includes a Lidar sensor, a radar sensor, and a processor. The processor is configured to identify one or more objects from Lidar scans. The processor is configured to transmit, via the radar sensor, radar signals for object detection based on reflections of the radar signals received by the radar sensor. While the electronic device travels the area, the processor is configured to generate a first map indicating one or more objects within an area based on the Lidar scans and a second map based on the radar signals. The processor is configured to determine whether the second map indicates a missed object at the portion of the first map that is unoccupied. In response to a determination that the second map indicates the missed object, the processor is configured to modify the first map with the missed object.
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