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1.发明授权公开(公告)号：US12000939B2
公开(公告)日：2024-06-04
申请号：US16340587
申请日：2017-03-20
Applicant: Google LLC
Inventor： Bhaskar Mehta , Chetan Bhadricha , Smruti Parichha , Jieru Cheng
CPC classification number: G01S19/50 , G01C21/206 , G01S5/0269
Abstract: Systems and methods for determining an improved user location using real world map data and/or sensor data are provided. In one embodiment, the method can include obtaining an initial estimate of a location of a user device and maps information corresponding to a geographic area at least partially surrounding the initial estimate of the location of the user device. The maps information can include one or more physical boundaries located at least in part within the geographic area at least partially surrounding the initial estimate. The method can further include determining a set of permissible areas that can potentially include the user device. The set of permissible areas can be determined based at least in part on the one or more physical boundaries. The method can further include revising the initial estimate to provide a revised estimate for the location of the user device based at least in part on the set of permissible areas.
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2.发明公开公开(公告)号：US20240272308A1
公开(公告)日：2024-08-15
申请号：US18642564
申请日：2024-04-22
Applicant: Google LLC
Inventor： Bhaskar Mehta , Chetan Bhadricha , Smruti Parichha , Jieru Cheng
CPC classification number: G01S19/50 , G01C21/206 , G01S5/0269
Abstract: A method for revising an initial estimate of a location of a user device includes obtaining an initial estimate of a location of a user device; obtaining maps information corresponding to a first geographic area associated with the initial estimate, the first geographic area including one or more features; obtaining sensor data from one or more sensors; determining a mode of travel based on the sensor data; determining a set of permissible areas that can potentially include the user device, based on the one or more features of the first geographic area and the mode of travel; and revising the initial estimate to provide a revised estimate for the location of the user device when the set of permissible areas encompass a second geographic area which is different than the first geographic area associated with the initial estimate of the location of the user device.
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3.发明申请公开(公告)号：US20200003906A1
公开(公告)日：2020-01-02
申请号：US16340587
申请日：2017-03-20
Applicant: Google LLC
Inventor： Bhaskar Mehta , Chetan Bhadricha , Smruti Parichha , Jieru Cheng
Abstract: Systems and methods for determining an improved user location using real world map data and/or sensor data are provided. In one embodiment, the method can include obtaining an initial estimate of a location of a user device and maps information corresponding to a geographic area at least partially surrounding the initial estimate of the location of the user device. The maps information can include one or more physical boundaries located at least in part within the geographic area at least partially surrounding the initial estimate. The method can further include determining a set of permissible areas that can potentially include the user device. The set of permissible areas can be determined based at least in part on the one or more physical boundaries. The method can further include revising the initial estimate to provide a revised estimate for the location of the user device based at least in part on the set of permissible areas.
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