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    Method, apparatus, and computer readable medium for a multi-source reckoning system
    1.
    发明授权
    Method, apparatus, and computer readable medium for a multi-source reckoning system 有权

    公开(公告)号：US12078738B2

    公开(公告)日：2024-09-03

    申请号：US17579251

    申请日：2022-01-19

    申请人： MSRS LLC

    发明人： Nathan Donham ,  Joshua Burton

    IPC分类号： G01S19/47 ,  G01S19/25 ,  G01S19/26

    CPC分类号： G01S19/47 ,  G01S19/254 ,  G01S19/26

    摘要： Method, systems, and computer-readable media containing instructions which, when executed by a computing device, cause it to receive data from an inertial measurement unit, including GPS data, velocity data, and bearing data, receive data from a digital magnetic compass, including bearing data, receive data from a Doppler sensor, including velocity data and distance data, determining whether GPS location data is in consensus with a previous derived multi-source reckoning system location, determining a consensus distance value from a weighted average of data from the inertial measurement unit and the Doppler sensor, determine a consensus heading value from a weighted average of data from the inertial measurement unit and the digital magnetic compass, determine a consensus geolocation value from a weighted average of data from the inertial measurement unit and the previous derived multi-source reckoning system location, and determine a derived multi-source reckoning system location.

    Increased positioning resolution
    2.
    发明授权
    Increased positioning resolution 有权

    公开(公告)号：US12066559B2

    公开(公告)日：2024-08-20

    申请号：US16668063

    申请日：2019-10-30

    申请人： QUALCOMM Incorporated

    发明人： Yinghua Yang ,  Bo Zheng ,  Gengsheng Zhang ,  Ning Luo

    IPC分类号： G01S5/02 ,  G01S5/00 ,  G01S19/09 ,  G01S19/25 ,  H04W4/029 ,  H04W64/00

    CPC分类号： G01S5/0236 ,  G01S5/0036 ,  G01S5/021 ,  G01S19/09 ,  G01S19/258 ,  H04W4/029 ,  H04W64/00

    摘要： A method of determining a location of a measurement device includes determining, at a server: measurement times of first positioning signal measurements, of first positioning signals from first positioning signal sources and/or a subset of positioning signal sources of second positioning signal sources. The method includes sending at least one measurement command from the server to the measurement device to cause the measurement device to obtain the first positioning signal measurements in accordance with the measurement times and/or obtain second positioning signal measurements of second positioning signals sent from the subset of positioning signal sources. The method includes: receiving, at the server from the measurement device, measurement data corresponding to the first positioning signal measurements and/or the second positioning signal measurements; and determining, at the server, the location of the measurement device based on the measurement data.

    Time-of-flight estimation using sampling error values
    3.
    发明授权
    Time-of-flight estimation using sampling error values 有权

    公开(公告)号：US12061274B2

    公开(公告)日：2024-08-13

    申请号：US18324276

    申请日：2023-05-26

    申请人： Texas Instruments Incorporated

    发明人： Tomas Motos

    IPC分类号： H04W4/80 ,  G01S19/25 ,  G01S19/35

    CPC分类号： G01S19/256 ,  G01S19/35 ,  H04W4/80

    摘要： A circuit includes a first wireless radio frequency (RF) transceiver and a time-of-flight estimator included with or coupled to the first wireless RF transceiver. The time-of-flight estimator estimates a time-of-flight between the first wireless RF transceiver and a second wireless RF transceiver using: a first interval value that indicates an amount of time between when the second wireless RF transceiver received the message and when the second wireless RF transceiver transmitted the response; a first error value that indicates an offset between when the second wireless RF transceiver sampled the message and a target sampling point for the message; a second interval value that indicates an amount of time between when the TX chain sent the message and when the RX chain received the response; and a second error value that indicates an offset between when the RX chain sampled the response and a target sampling point for the response.

    POSITIONING PRECISION ESTIMATION METHOD AND APPARATUS, ELECTRONIC DEVICE, AND STORAGE MEDIUM
    5.
    发明公开
    POSITIONING PRECISION ESTIMATION METHOD AND APPARATUS, ELECTRONIC DEVICE, AND STORAGE MEDIUM 审中-公开

    公开(公告)号：US20240236934A1

    公开(公告)日：2024-07-11

    申请号：US18612972

    申请日：2024-03-21

    申请人： Tencent Technology (Shenzhen) Company Limited

    发明人： Xin ZHANG ,  Zhanduo YANG ,  Yanxing ZHOU ,  Xin LI ,  Weizhi ZHENG ,  Chang LIU

    IPC分类号： H04W64/00 ,  G01S19/25 ,  G01S19/45

    CPC分类号： H04W64/006 ,  G01S19/252 ,  G01S19/45

    摘要： A method includes obtaining first traveling information of a vehicle from a sensor associated with the vehicle, and determining, based on the first traveling information, first location information of the vehicle and a first intermediate variable that is used in the determining the first location information. The method also includes determining a target precision estimation model from a plurality of pre-trained precision estimation models based on the first traveling information and the first intermediate variable. The plurality of pre-trained precision estimation models are obtained by training a machine learning model based on a training sample set. The method also includes inputting the first location information and the first intermediate variable into the target precision estimation model to obtain second location information of the vehicle and a precision error of the first location information relative to the second location information.

    MULTI-STAGED PIPELINED GNSS RECEIVER
    6.
    发明公开
    MULTI-STAGED PIPELINED GNSS RECEIVER 审中-公开

    公开(公告)号：US20240230918A9

    公开(公告)日：2024-07-11

    申请号：US18384729

    申请日：2023-10-27

    申请人： Trimble Inc.

    发明人： Andrey Bacherov ,  Charles Manning

    IPC分类号： G01S19/25 ,  G01S19/11 ,  G01S19/42

    CPC分类号： G01S19/258 ,  G01S19/11 ,  G01S19/252 ,  G01S19/428

    摘要： Sets of digital samples associated with received wireless signals are received, each of the sets of digital samples corresponding to a particular RF path. The sets of digital samples are provided to a plurality of pipelines, each of the plurality of pipelines including a plurality of stages, each of the plurality of stages including one or more digital logic circuits. Sets of interconnect data are generated by the plurality of pipelines based on the sets of digital samples, the sets of interconnect data including at least one accumulating value. The sets of interconnect data are passed between adjacent pipelines of the plurality of pipelines along a direction. A result is generated by a last pipeline of the plurality of pipelines based on the at least one accumulating value.

    GNSS error resolution
    7.
    发明授权
    GNSS error resolution 有权

    公开(公告)号：US12025715B2

    公开(公告)日：2024-07-02

    申请号：US17400882

    申请日：2021-08-12

    申请人： HERE Global B.V.

    发明人： Deekshant Saxena ,  Senjuti Sen

    IPC分类号： G01S19/40 ,  G01S19/25 ,  G01S19/37 ,  G06N20/00

    CPC分类号： G01S19/40 ,  G01S19/258 ,  G01S19/37 ,  G06N20/00

    摘要： Embodiments including a method and apparatus for correction of a global navigation satellite system (GNSS) are described. In one example, the apparatus includes a communication interface and a processor. The communication interface is configured to a plurality of GNSS signals. The GNSS signals may include at least one almanac value and at least one ephemeris value. The processor is configured to generate a spatio-temporal graph model based on the at least one almanac value, the at least one ephemeris value, and a predetermined offset value for a base location. The spatio-temporal graph model analyzes subsequent GNSS signals to determined a predicted offset or a corrected GNSS position.