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1413 条记录 (耗时 0.03 秒)

    MULTI-STAGED PIPELINED GNSS RECEIVER
    61.
    发明申请
    MULTI-STAGED PIPELINED GNSS RECEIVER 有权

    公开(公告)号：US20210373177A1

    公开(公告)日：2021-12-02

    申请号：US16888039

    申请日：2020-05-29

    申请人： Trimble Inc.

    发明人： Andrey Bacherov ,  Charles Manning

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

    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.

    PREDICTION OF A CARTOGRAPHIC READJUSTMENT PARAMETER BY DEEP LEARNING
    62.
    发明申请
    PREDICTION OF A CARTOGRAPHIC READJUSTMENT PARAMETER BY DEEP LEARNING 有权

    公开(公告)号：US20210356294A1

    公开(公告)日：2021-11-18

    申请号：US17273480

    申请日：2019-08-20

    申请人： Continental Automotive France ,  Continental Automotive GmbH

    发明人： Lucien Garcia ,  Willy Vigneau

    IPC分类号： G01C21/00 ,  G01C21/34 ,  G01S19/25 ,  G01S19/07 ,  G06N3/04 ,  G06K9/62

    摘要： Subjects of the present disclosure are methods for training deep learning models, methods for predicting a map matching parameter, methods for updating a digital road map, and a computer program making it possible to implement the methods and devices for updating a digital road map. The general principle is based on the use of machine learning. Accordingly, a statistical deep learning model is trained according to a “supervised” machine learning scheme. Thereafter, the pretrained statistical deep learning model is used to predict a map matching parameter on the basis of a measurement of geographic coordinates and of an identifier of the position sensor that has performed the measurement of geographic coordinates. Finally, the map matching parameter can be used to update a digital road map.

    VEHICLE-TO-EVERYTHING SYNCHRONIZATION METHOD AND DEVICE
    65.
    发明申请
    VEHICLE-TO-EVERYTHING SYNCHRONIZATION METHOD AND DEVICE 有权

    公开(公告)号：US20210321345A1

    公开(公告)日：2021-10-14

    申请号：US17266358

    申请日：2018-08-06

    申请人： Beijing Xiaomi Mobile Software Co., Ltd.

    发明人： Qun ZHAO ,  Yang LIU

    IPC分类号： H04W56/00 ,  H04W4/40 ,  G01S19/25 ,  H04W72/02 ,  H04W72/04

    摘要： Provided are a vehicle-to-everything synchronization method and device. The method is used for a first terminal, wherein the first terminal can simultaneously support first-type vehicle-to-everything direct communication and second-type vehicle-to-everything direct communication. The method includes: receiving at least one first synchronization signal, wherein the at least one first synchronization signal is a synchronization signal for the first-type vehicle-to-everything direct communication and/or the second-type vehicle-to-everything direct communication; determining a synchronization reference signal for the second-type vehicle-to-everything direct communication according to the first synchronization signal; and performing the second-type vehicle-to-everything direct communication according to the synchronization reference signal. Therefore, according to the present disclosure, a synchronization signal of one type of network can be used to provide a synchronization reference signal for another type of network communication, and the synchronization efficiency of vehicle-to-everything can also be realized.

    RTK Vector Phase Locked Loop Architecture
    66.
    发明申请
    RTK Vector Phase Locked Loop Architecture 有权

    公开(公告)号：US20210311206A1

    公开(公告)日：2021-10-07

    申请号：US17222418

    申请日：2021-04-05

    申请人： Deere & Company ,  Auburn University c/o Office of Innovation Advancement and Commercialization

    发明人： Scott M. Martin ,  David M. Bevly ,  Richard G. Keegan ,  Stephen F. Rounds

    IPC分类号： G01S19/44 ,  G01S19/51 ,  G01S19/41 ,  G01S19/42 ,  G01S19/43 ,  G01S19/25

    摘要： A navigation system for a mobile object generates navigation data for the mobile object based on satellite navigation signals received from a plurality of satellites and base data received from a stationary base station. The navigation data includes code phase estimates and carrier phase estimates for the plurality of satellites. The system computes position, velocity and time estimates for the mobile object in accordance with the code phase estimates and carrier phase estimates, and performs a navigation function for the mobile object in accordance with the position, velocity and time estimates. The system generates code phase estimates by performing a Vector Delay Locked Loop (VDLL) computation process that drives a code NCO for each channel of a plurality of channels, and generates carrier phase estimates for the plurality of satellites by performing a RTK Vector Phase Locked Loop computation process that drives a carrier NCO for each channel.

    Method and system for signal detection including positioning signals
    67.
    发明授权
    Method and system for signal detection including positioning signals 有权

    公开(公告)号：US11137502B2

    公开(公告)日：2021-10-05

    申请号：US15991217

    申请日：2018-05-29

    申请人： SKAOTLOM LLC

    发明人： Wensheng Hua

    IPC分类号： G01S19/34 ,  G01S19/36 ,  G01S19/25

    摘要： An assisted satellite positioning system based on detecting signals from a number of satellites includes: (a) a mobile receiver; and (b) a base station communicating with the receiver over a low-power wireless communication network, the base station providing ephemeris data of a selected number of the satellites, but not all, using a compressed data format. The ephemeris data may include data concerning doppler frequency variations or elevation variations of the selected satellites over a predetermined time interval. The doppler frequency variations and the elevation variations may be represented in the compressed format by coefficients of a polynomial function of time. The polynomial function may be weighted to have lesser relative errors in larger doppler frequencies than lesser doppler frequencies, or to have lesser relative errors in lesser elevations than larger elevations. In one implementation, the low-power wireless communication network—such as a LoRa network—that has a range of at least 10 miles.

    TIMING ERROR ADJUSTMENT IN MOBILE DEVICES
    69.
    发明申请
    TIMING ERROR ADJUSTMENT IN MOBILE DEVICES 有权

    公开(公告)号：US20210270974A1

    公开(公告)日：2021-09-02

    申请号：US16803410

    申请日：2020-02-27

    申请人： QUALCOMM Incorporated

    发明人： Philip CRARY ,  Troy LI ,  Scott SCIGLIANO

    IPC分类号： G01S19/25 ,  G01S19/24 ,  G01S19/23 ,  G01S19/29 ,  G01S19/05 ,  G06F1/3203 ,  H01C7/00

    摘要： System and method for adjusting timing error in a mobile device. In the mobile device, a crystal oscillator (XO) is used by a system timer as the timing source. When the mobile device enters into a sleep mode, the system timer is set to time the duration of the sleep mode. During the sleep mode, a thermistor is used to measure and monitor the temperature changes of the XO. After the sleep mode is over, a processor in the mobile device determines the frequency changes of the XO based on the temperature changes of the XO. Based on the frequency changes of the XO, the processor determines the timing error that may have occurred when the system timer was timing the sleep mode and determines the actual duration of the sleep mode by adjusting the duration timed by the system timer based on the timing error.