-
1.发明公开公开(公告)号：US20240280660A1
公开(公告)日：2024-08-22
申请号：US18599549
申请日：2024-03-08
申请人： TAKEMETUIT INC.
IPC分类号： G01S1/04 , G01R23/165 , G01S1/72 , G01S1/76 , G01S5/30 , H04B1/7136 , H04W16/14 , H04W64/00
CPC分类号： G01S1/0428 , G01R23/165 , G01S1/045 , G01S1/725 , G01S1/763 , G01S5/30 , H04B1/7136 , H04W16/14 , H04W64/006 , H04B2001/71367
摘要： A method and system for enabling the determination of a position of a receiver within a space includes transmitting a beacon signal from each of a plurality of beacon devices located at different locations within the space. The beacon signal transmitted from each beacon device has a unique information component and may have a unique frequency pattern of multiple frequencies. Each beacon signal can be distinguishable from the beacon signals transmitted from any other of the beacon devices based on the combination of its unique information component and its unique frequency pattern. The beacon signals are received at a receiver. At the receiver, for each beacon signal of a working subset, time-delay information of the received beacon signal is determined and multilateration is applied to determine the position of the receiver based on the location of each beacon device of the working subset.
-
公开(公告)号：US12058590B2
公开(公告)日：2024-08-06
申请号：US18103624
申请日：2023-01-31
发明人： Wilfred Edwin Booij , Endre Bakka
IPC分类号： H04W4/30 , G01S1/72 , G01S1/74 , G01S1/76 , G01S5/00 , G01S5/18 , H04B11/00 , H04W4/80 , H04W84/18
CPC分类号： H04W4/30 , G01S1/725 , G01S1/751 , G01S1/76 , G01S5/0036 , G01S5/0081 , G01S5/18 , H04B11/00 , H04W4/80 , H04W84/18
摘要： The present disclosure relates to a location determination system that includes acoustic transmitting devices, location tags, and a wireless mesh network, where the wireless mesh network uses battery-powered devices. A location tag receives acoustic signals (e.g., ultrasound signals) from an acoustic transmitting device. Clocks from members of the wireless mesh network are synchronized by observation of clock pairings, each clock pair formed by respective clocks in a transmitting device that transmits a message and a receiving device that receives the message. By analyzing the observed clock pairings, a best fit between the clock pairings may be determined. After selecting a reference clock, an acoustic transmission schedule may be propagated to the respective acoustic transmitting device.
-
公开(公告)号：US11959993B2
公开(公告)日：2024-04-16
申请号：US16495768
申请日：2018-03-19
申请人： TAKEMETUIT INC.
IPC分类号： G01S1/04 , G01R23/165 , G01S1/72 , G01S1/76 , G01S5/30 , H04B1/7136 , H04W16/14 , H04W64/00
CPC分类号： G01S1/0428 , G01R23/165 , G01S1/045 , G01S1/725 , G01S1/763 , G01S5/30 , H04B1/7136 , H04W16/14 , H04W64/006 , H04B2001/71367
摘要： A method and system for enabling the determination of a position of a receiver within a space includes transmitting a beacon signal from each of a plurality of beacon devices located at different locations within the space. The beacon signal transmitted from each beacon device has a unique information component and may have a unique frequency pattern of multiple frequencies. Each beacon signal can be distinguishable from the beacon signals transmitted from any other of the beacon devices based on the combination of its unique information component and its unique frequency pattern. The beacon signals are received at a receiver. At the receiver, for each beacon signal of a working subset, time-delay information of the received beacon signal is determined and multilateration is applied to determine the position of the receiver based on the location of each beacon device of the working subset.
-
公开(公告)号：US11875089B2
公开(公告)日：2024-01-16
申请号：US16288606
申请日：2019-02-28
发明人： Wilfred Edwin Booij , Knut Welle , Mattheus Franciscus Albertus Ten Veldhuis , Fritjof Boger Engelhardtsen
摘要： An acoustic model determination approach for a real-time locating system is disclosed. The system includes one or more transmitting devices and one or more mobile devices. The acoustic model may be determined by deriving an acoustic representation of sub-structures within the building, and then forming the acoustic model based on the acoustic representation and the location and orientation of the static acoustic transmitting device. In another embodiment, an acoustic signal is transmitted from a static acoustic transmitting device, with the reflected signals received by the same static acoustic transmitting device in a receiving mode. Based on these received acoustic signals, the acoustic model is formed based on the reflected signals and the location and orientation of the static acoustic transmitting device.
-
公开(公告)号：US11079469B2
公开(公告)日：2021-08-03
申请号：US15591272
申请日：2017-05-10
摘要： A method and apparatus for locating a target in a venue is described. A backend controller activates transmitters in a venue to send burst signals using a double symmetry configuration formed of a plurality of separate transmitter groups. The backend controller activates the transmitters into a second, different configuration for bursting. The resulting location signal information from each configuration is obtained by the backend controller, which then more accurately determines the location of the target in the venue.
-
公开(公告)号：US20210141045A1
公开(公告)日：2021-05-13
申请号：US17256672
申请日：2019-05-13
发明人： Feng Hong , Haihong Feng , Minyan Huang , Feng Chen , Dingyun Li
摘要： A field-programmable gate array (FPGA)-based real-time processing system applied to underwater acoustic positioning and realizing reconfigurability and multiple output is provided. The system includes a multi-interface control and command parsing module for automatically completing sample information transmission and command parsing; a finite-state machine (FSM) of sample management for calculating related data and completing splitting, flipping and writing of a sample; a parallel correlation processor group for completing, in parallel, high-performance processing operations regarding a plurality of targets; and a multiple output data former for simultaneously realizing data formation of a multiple output result and outputting a flag bit signal to the outside. A FPGA-based real-time processing control method is also provided that is applied to underwater acoustic positioning and realizing reconfigurability and multiple output. The system and the method are used, such that during a whole realization process, under multiple array elements and multiple targets, high-speed parallel correlation processing is realized, thereby solving problems in terms of real-time performance, universality and anti-noise performance, and effectively realizing high-performance correlation.
-
公开(公告)号：US20180120128A1
公开(公告)日：2018-05-03
申请号：US15717895
申请日：2017-09-27
申请人： Yoav Neuman
发明人： Yoav Neuman
摘要： A method and structure are disclosed for simultaneous detection of the relative positions between first and second members of each joint in a multiplicity of joints in a system. In the multiplicity of joints, as the relative positions between the first and second members of a joint change, a position-sensitive vibration source associated with that joint generates a vibration signal with a characteristic frequency spectrum. Vibration signals from the multiplicity of joints combine into a mixed vibration signal. This mixed vibration signal is detected and separated into individual characteristic frequency spectra by a vibration-detecting device to enable simultaneous monitoring of the positions of each of the joints in the multiplicity of j oints. Joints may be rotary, linear, or a combination of joint types.
-
公开(公告)号：US09697539B2
公开(公告)日：2017-07-04
申请号：US14952822
申请日：2015-11-25
申请人： shopkick, Inc.
发明人： Aaron T. Emigh , Steven Stanek , Yen C. Lee
IPC分类号： G06Q30/02 , H04B11/00 , G01S1/76 , G01S1/72 , G01S5/02 , G01S5/18 , G06Q30/00 , H04W4/02 , H04W4/20 , H04L29/08 , G01S15/04 , H04W4/04
CPC分类号： G06Q30/0261 , G01S1/72 , G01S1/763 , G01S5/02 , G01S5/0257 , G01S5/18 , G01S15/04 , G06K9/00664 , G06K9/183 , G06K9/228 , G06K9/4642 , G06K9/6201 , G06K2209/23 , G06Q30/00 , G06Q30/0205 , G06Q30/0207 , G06Q30/0211 , G06Q30/0214 , G06Q30/0217 , G06Q30/0224 , G06Q30/0226 , G06Q30/0236 , G06Q30/0238 , G06Q30/0267 , H04B11/00 , H04L67/18 , H04W4/02 , H04W4/04 , H04W4/20
摘要： Various presence detection techniques are disclosed. In some embodiments, a system comprises a signal generator configured to generate a signal that includes a plurality of selected frequencies that are selected from among a set of candidate frequencies, wherein inclusion or exclusion of each candidate frequency in the signal encodes a bit of information and wherein the encoded information comprises a store identifier that identifies a retail store; and a transmitter configured to transmit the signal within the retail store; wherein presence of a device in the retail store is determined in response to reception of the signal at the device and extraction of the store identifier from the received signal by decoding the received signal.
-
公开(公告)号：US11333737B2
公开(公告)日：2022-05-17
申请号：US16173083
申请日：2018-10-29
摘要： An ultrasonic transmitter apparatus is configured to transmit an ultrasonic signal that communicates a binary identifier. The apparatus includes an ultrasound transmission system and is configured to transmit an ultrasonic signal that communicates the binary identifier according to an encoding in which each bit position in the binary identifier is associated with a respective pair of frequencies and with respective first and second time positions in the ultrasonic signal. The value of the bit position in the binary identifier determines which frequency of the pair of frequencies is transmitted at the first respective time position in the ultrasonic signal, with the other frequency of the pair of frequencies being transmitted at the second respective time position in the ultrasonic signal.
-
10.发明申请公开(公告)号：US20200049788A1
公开(公告)日：2020-02-13
申请号：US16058758
申请日：2018-08-08
摘要： A focus controlling component is configured to control a focus of a laser beam that passes through water and induces plasmas that emit signals. The focus of the laser beam is controlled such that the signals emitted by the induced plasmas interfere to form a combined signal that propagates in a desired direction.
-
-
-
-
-
-
-
-
-
搜索结果
44 条记录 (耗时 0.025 秒)
