-
公开(公告)号：US20230305139A1
公开(公告)日：2023-09-28
申请号：US18326149
申请日：2023-05-31
Applicant: QUALCOMM Incorporated
Inventor： Gautam NIRULA , William MORRISON
CPC classification number: G01S13/867 , G01S19/071 , G01S13/865 , G01S13/89 , G01S19/10
Abstract: Techniques are provided for determining a location of a mobile device based on visual positioning solution (VPS). An example method for determining a position estimate of a mobile device includes obtaining sensor information, detecting one or more identifiable features in the sensor information, determining a range to at least one of the one or more identifiable features, obtaining coarse map information, determining a location of the at least one of the one or more identifiable features based on the coarse map information, and determining the position estimate for the mobile device based at least in part on the range to the at least one of the one or more identifiable features.
-
公开(公告)号：US20190353800A1
公开(公告)日：2019-11-21
申请号：US16108019
申请日：2018-08-21
Applicant: QUALCOMM Incorporated
Inventor： Gautam NIRULA , William MORRISON , Songwon JEE
Abstract: Disclosed embodiments facilitate accuracy and decrease error in terrestrial positioning systems, including errors induced by multipath (e.g. ground reflections) in doppler based measurements of SVs. In some embodiments, one or more Global Navigation Satellite System (GNSS) doppler measurements and one or more corresponding GNSS pseudorange measurements for one or more satellites may be obtained. One or more GNSS doppler estimates corresponding to the one or more GNSS doppler measurements may be determined, wherein for a GNSS doppler measurement, the corresponding GNSS doppler estimate may be determined based, in part, on the GNSS doppler measurement and a GNSS pseudorange measurement corresponding to the GNSS doppler measurement. A speed of the UE may be determined based, in part, on the one or more GNSS doppler estimates.
-
公开(公告)号：US20220291373A1
公开(公告)日：2022-09-15
申请号：US17198560
申请日：2021-03-11
Applicant: QUALCOMM Incorporated
Inventor： Gautam NIRULA , William MORRISON
Abstract: Techniques are provided for determining a location of a mobile device based on visual positioning solution (VPS). An example method for determining a position estimate of a mobile device includes obtaining sensor information, detecting one or more identifiable features in the sensor information, determining a range to at least one of the one or more identifiable features, obtaining coarse map information, determining a location of the at least one of the one or more identifiable features based on the coarse map information, and determining the position estimate for the mobile device based at least in part on the range to the at least one of the one or more identifiable features.
-
公开(公告)号：US20180188380A1
公开(公告)日：2018-07-05
申请号：US15393361
申请日：2016-12-29
Applicant: QUALCOMM Incorporated
Inventor： Sai Pradeep VENKATRAMAN , Weihua GAO , William MORRISON
CPC classification number: G01S19/34 , G01C21/165 , G01S5/0263 , G01S5/16 , G01S19/39 , G01S19/49
Abstract: Techniques for controlling sampling rates in non-causal positioning applications are provided. An example method for controlling a sampling rate in a mobile device includes determining one or more positions based on external signal information, such that the one or more positions are determined at a position fix rate, storing sensor information associated with one or more sensors at a sensor sampling rate, calculating a position estimate based on a non-causal analysis of the one or more positions and the sensor information, such that the non-causal analysis utilizes past, present and future positions and the corresponding past, present and future sensor information, comparing the position estimate to a Quality of Service (QoS) value, and modifying the position fix rate based on the comparison of the position estimate to the QoS value.
-
5.发明申请公开(公告)号：US20250004142A1
公开(公告)日：2025-01-02
申请号：US18630717
申请日：2024-04-09
Applicant: QUALCOMM Incorporated
Inventor： Davide BELLI , Bence MAJOR , Amir JALALIRAD , Songwon JEE , Himanshu SHAH , William MORRISON
IPC: G01S19/42 , G01S19/39 , G01S19/40 , G06N3/0464
Abstract: In some implementations, a global navigation satellite system (GNSS) device may determine its approximate location, and, for each pseudorange measurement of a plurality of pseudorange measurements performed by the GNSS device: determine a location of a respective satellite vehicle (SV) that transmits a respective GNSS signal of which the pseudorange measurement is performed, and determine a respective residual grid, where the respective residual grid is based on respective information from the pseudorange measurement and the location of the respective SV, and the respective residual grid is indicative of possible locations of the GNSS device within a geographical region including the approximate location of the GNSS device. The GNSS device may aggregate the residual grids corresponding to at least a portion of the plurality of pseudorange measurements and may determine a location estimate of the GNSS device based on the aggregation of the residual grids.
-
Patent Agency Ranking
公开(公告)号：US20240027227A1
公开(公告)日：2024-01-25
申请号：US17814116
申请日：2022-07-21
Applicant: QUALCOMM Incorporated
Inventor： Himanshu SHAH , Gautam NIRULA , Hsiao Chien LIANG , William MORRISON
CPC classification number: G01C21/3885 , G01C21/34
Abstract: Aspects presented herein may improve the performance of positioning devices by enabling the positioning devices to utilize transformed map data with limited third party knowledge of the transformation. Aspects presented herein may enable a positioning device to make the map data from another coordinate system usable for positioning algorithms without knowledge of the transformation. In one aspect, a UE transmits a request for map data based on a first set of coordinates in a first coordinate system. The UE receives the map data based on a second set of coordinates in a second coordinate system, where the first set of coordinates in the first coordinate system is distinct from the second set of coordinates in the second coordinate system. The UE calculates a set of relative distances between the second set of coordinates and one or more objects corresponding to the map data.
-
7.发明公开公开(公告)号：US20230314629A1
公开(公告)日：2023-10-05
申请号：US18331026
申请日：2023-06-07
Applicant: QUALCOMM Incorporated
Inventor： Vinod Kumar SAINI , Abdelmonaem LAKHZOURI , Bo ZHENG , William MORRISON
CPC classification number: G01S19/47 , G01S19/393 , G01S19/428 , G01S19/52
Abstract: A mobile device in a moving vehicle initializes a Global Navigation Satellite System (GNSS)-Inertial Navigation System (INS) system while the vehicle is in-motion with the orientation of the mobile device with respect to a global reference frame. The mobile device uses gyroscope measurements made while the vehicle is turning to determine a gravity vector. The gravity vector and accelerometer measurements may be used to determine a forward vector for the mobile device. A north vector is determined using the GNSS measurements. After the GNSS-INS system is calibrated, the mobile device may be positioned with respect to the vehicle. The orientation of the mobile device, prior to repositioning, may be compared to a current orientation, determined while the vehicle is in motion, in order to determine whether the GNSS-INS system should be re-initialized.
-
公开(公告)号：US20220011447A1
公开(公告)日：2022-01-13
申请号：US16927337
申请日：2020-07-13
Applicant: QUALCOMM Incorporated
Inventor： Vinod Kumar SAINI , Abdelmonaem LAKHZOURI , Bo ZHENG , William MORRISON
Abstract: A mobile device in a moving vehicle initializes a Global Navigation Satellite System (GNSS)-Inertial Navigation System (INS) system while the vehicle is in-motion with the orientation of the mobile device with respect to a global reference frame. The mobile device uses gyroscope measurements made while the vehicle is turning to determine a gravity vector. The gravity vector and accelerometer measurements may be used to determine a forward vector for the mobile device. A north vector is determined using the GNSS measurements. After the GNSS-INS system is calibrated, the mobile device may be positioned with respect to the vehicle. The orientation of the mobile device, prior to repositioning, may be compared to a current orientation, determined while the vehicle is in motion, in order to determine whether the GNSS-INS system should be re-initialized.
-
9.发明公开公开(公告)号：US20240319383A1
公开(公告)日：2024-09-26
申请号：US18188426
申请日：2023-03-22
Applicant: QUALCOMM Incorporated
Inventor： Min WANG , Ning LUO , Gengsheng ZHANG , William MORRISON , Abdelmonaem LAKHZOURI
Abstract: Techniques for extended wide-lane carrier phase availability using inertial measurement unit (IMU) feedback are disclosed. The techniques can include determining an IMU-based position differential based on first IMU data received from an IMU of the mobile device, detecting a wide-lane cycle slip based on a wide-lane differential carrier phase (DCP) measurement and the IMU-based position differential, responsive to detecting the wide lane cycle slip, adjusting the wide-lane DCP measurement based on the IMU-based position differential to obtain a corrected wide-lane DCP measurement, and generating a global navigation satellite system (GNSS)-based positioning estimate for the mobile device based on the corrected wide-lane DCP measurement.
-
10.发明公开公开(公告)号：US20240295661A1
公开(公告)日：2024-09-05
申请号：US18177713
申请日：2023-03-02
Applicant: QUALCOMM Incorporated
Inventor： Amir JALALIRAD , Bence MAJOR , Davide BELLI , Songwon JEE , Himanshu SHAH , William MORRISON
Abstract: A method of determining a position of a device includes obtaining an initial position of the device without using Global Navigation Satellite System (GNSS) satellites. GNSS measurements are taken of radio frequency (RF) signals transmitted by the GNSS satellites. Initial residuals are determined based, at least in part, on GNSS measured distances determined from the at least a portion of the GNSS measurements and expected distances determined from the initial position. Errors of the GNSS measurements based on the RF signals are estimated. An optimization is performed using some of the estimated errors to produce a modified set of residuals, wherein the optimization is further based on H, wherein H represents a matrix with trigonometric functions of a geometry of the GNSS satellites. A cost minimization method of the modified set of residuals and actual geometry of the GNSS satellites (H) to determine an improved position of the device.
-
-
-
-
-
-
-
-
-
Search Results
16
records
(took 0.014 seconds)
