-
公开(公告)号：US20250020799A1
公开(公告)日：2025-01-16
申请号：US18895646
申请日：2024-09-25
Applicant: SADAR 3D, INC.
Inventor： Stephen B. Crain , Joseph V.R. Paiva , Dennis H. Cowdrick
Abstract: Apparatus and methods useful in surveying to provide information rich models. In particular, information not readily or possibly provided by conventional survey techniques can be provided. In some versions targets provide reference for baseline positioning or improving position information otherwise acquired. Scanning may be carried out in multiple locations and merged to form a single image. Machine mounted and hand mounted scanning apparatus is disclosed.
-
公开(公告)号：US12158515B2
公开(公告)日：2024-12-03
申请号：US17480939
申请日：2021-09-21
Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC
Inventor： Jouya Jadidian , Scott Francis Fullam , Rubén Caballero
Abstract: Systems and methods are provided for tracking a passive controller system using an active sensor system within a mixed-reality environment. The passive controller system includes a body configured to be held in a hand of a user, as well as a plurality of retroreflectors that collectively provides at least 180 degrees of reflecting surface for reflecting a radar signal in at least 180 degrees of spherical range when the passive controller system is positioned within a predetermined distance from a source of the radar signal and with an orientation that is within the at least 180 degrees of spherical range relative to the source of the radar signal. Signals transmitted to the passive controller and reflected back from the passive controller are used to calculate the position and orientation of the passive controller system relative to the active sensor system.
-
公开(公告)号：US20240385308A1
公开(公告)日：2024-11-21
申请号：US18640652
申请日：2024-04-19
Applicant: Wiliot, Ltd.
Inventor： Yoav IKAN , Yotam GOLANI , Alon YEHEZKELY
Abstract: A method for determining a location of a battery-less wireless tag by a tag reader being at a fixed-location. The method comprises: transmitting, by the tag reader, at least one wireless signal having a controlled known energy; receiving at the tag reader at least one packet transmitted by the tag within a time window; and responsive to a determination at the tag reader of at least one transmission rate of packets by the wireless tag based on the at least one received packet, determining information regarding the location of the tag.
-
公开(公告)号：US20240337745A1
公开(公告)日：2024-10-10
申请号：US18688954
申请日：2023-04-27
Applicant: ZTE Corporation
Inventor： Zheng Zheng , Huanhuan Mao , Ping Li
Abstract: A positioning method, system and device, a storage medium, and a program product are disclosed. The positioning method may include: acquiring parameter information of at least two Reconfigurable Intelligent Surfaces (RISs) and parameter information of a base station; acquiring first time information and second time information, the first time information is information representing a time difference between a time point at which the base station sends a first positioning signal and a time point at which the base station receives a second positioning signal, and the second time information is information representing a time difference between a time point at which a terminal device sends the second positioning signal and a time point at which the terminal device receives the first positioning signal; and obtaining location information of the terminal device.
-
公开(公告)号：US12111419B1
公开(公告)日：2024-10-08
申请号：US16912423
申请日：2020-06-25
Inventor： James B. Blackmon , Steven R. Peeples
CPC classification number: G01S7/415 , G01S13/753 , G01S13/887 , G01S13/872
Abstract: A system for using wireless signals to detect objects of a certain type, such as concealed weapons, leverages the fact that different objects have different resonance characteristics. The system transmits wireless signals of different frequencies, and returns from such signals are measured. The return of a signal from an object at a resonant frequency of the object will be stronger than a return of a signal from the object at a non-resonant frequency. The system analyzes the returns in an effort to determine when a return is sufficiently large to indicate that it was reflected from an object of interest. When an object of interest is detected, the system adjusts a characteristic of the system, such as antenna orientation or pulse shape, based on an estimated location of the object, and then runs a test to confirm the detection of the object, thereby eliminating at least some false positives.
-
公开(公告)号：US20240329228A1
公开(公告)日：2024-10-03
申请号：US18579589
申请日：2022-07-19
Applicant: Sensormatic Electronics, LLC
Inventor： Steve E. TRIVELPIECE
IPC: G01S13/75 , H04B17/318
CPC classification number: G01S13/751 , H04B17/318
Abstract: Systems and methods for determining and using electronic tag motion may include a database storing a plurality of last read signal strength values and phase values for each electronic tag, for each antenna, for each polarization, and for each frequency of transmission. Based on the information in the database, the system may make a more accurate determination whether an electronic tag is moving or stationary, as compared to conventional methods used for determining motion of electronic tags.
-
7.发明公开
公开(公告)号：US20240322864A1
公开(公告)日：2024-09-26
申请号：US18189951
申请日：2023-03-24
Applicant: QUALCOMM Incorporated
Inventor： Yavuz Yapici , Narayan Prasad , Tao Luo , Junyi Li
CPC classification number: H04B7/04013 , G01S13/75 , H04B7/06966
Abstract: Methods, systems, and devices for wireless communications are described. Techniques described herein provide for a network entity to determine a beam focusing distance for a reconfigurable intelligent surface (RIS) for a user equipment (UE) located in the near field region of the RIS. The beam focusing distance may be determined using reference signals for different test beam focusing distances within the near field region of the RIS. The test beams may have a same angular direction from the RIS to the UE. The test beams may have a beam focusing distance selected from a set of beam focusing distances within the near field region of the RIS.
-
公开(公告)号：US20240310509A1
公开(公告)日：2024-09-19
申请号：US18673890
申请日：2024-05-24
Applicant: VIVO MOBILE COMMUNICATION CO., LTD.
Inventor： Jianzhi LI , Dajie JIANG , Jian YAO , Jianming WU
CPC classification number: G01S13/751 , G01S7/006 , H04B7/22
Abstract: This application discloses a wireless sensing method and apparatus, a network-side device, and a terminal. The wireless sensing method of embodiments of this application includes: backscattering, by a first device, a sensing signal to a target network node, where the sensing signal comes from the target network node.
-
公开(公告)号：US20240310508A1
公开(公告)日：2024-09-19
申请号：US18673723
申请日：2024-05-24
Applicant: VIVO MOBILE COMMUNICATION CO., LTD.
Inventor： Jianzhi LI , Dajie JIANG , Jian YAO , Jianming WU
CPC classification number: G01S13/751 , G01S7/006 , H04B7/22
Abstract: Disclosed are a wireless sensing method and apparatus, a network-side device, and a terminal, belonging to the technical field of communications. The wireless sensing method includes: A first device backscatters a sensing signal to a wireless sensing signal receiver. The sensing signal is from a wireless sensing signal transmitter.
-
公开(公告)号：US12066523B1
公开(公告)日：2024-08-20
申请号：US17479629
申请日：2021-09-20
Applicant: DC-001, Inc.
Inventor： Scott Bergen
CPC classification number: G01S13/755 , B61L25/025 , G01S13/931 , G08G1/095 , H04W4/021 , G01S2205/002
Abstract: A radar-based system for communicating information to a vehicle uses spatially-encoded markers that are positioned proximate to a roadway traveled by the vehicle. The markers are designed to convey a unique radar signature that distinguishes the markers from other objects. The unique radar signature or marker characteristics are further interpreted by at least one controller on the vehicle as encoded messages. Marker distinguishing characteristics, such as size, shape, orientation and movement, provide distinct information to the controller. The controller may use the conveyed information to make control decisions for the vehicle or to display the conveyed information to occupants of the vehicle. In some cased, the controller may use the conveyed information to determine a location of the vehicle, such as a position of the vehicle within a lane.
