公开(公告)号：US11513234B2

公开(公告)日：2022-11-29

申请号：US16865203

申请日：2020-05-01

Applicant: Apple Inc.

Inventor： Mark G. Petovello ,  Isaac T. Miller ,  Kenneth M. Pesyna, Jr.

IPC: G01S19/22 ,  G01S19/39 ,  G01S19/40

Abstract: A device implementing a system for estimating device position includes at least one processor configured to receive a first sensor measurement of a device at a first time, the first sensor measurement having a first variance in measurement error, and to receive a second sensor measurement of the device at a second time, the second sensor measurement having a second variance in measurement error. The at least one processor is further configured to determine a speed of the device based on at least one of the first or second sensor measurements, and adjust the second variance in measurement error based on the determined speed. The at least one processor is further configured to estimate a device position based at least in part on the first variance in measurement error and the adjusted second variance in measurement error.

公开(公告)号：US12163790B2

公开(公告)日：2024-12-10

申请号：US17739074

申请日：2022-05-06

Applicant: Apple Inc.

Inventor： Kenneth M. Pesyna, Jr. ,  Christina Selle ,  Saurabh Godha ,  Isaac Thomas Miller

IPC: G01C21/30

Abstract: The subject technology provides for visualizing a route traversed by a user during a movement event by periodically obtaining position information data from a receiver of a navigation system during a movement event. A path traversed by a user of a device that includes the receiver during the movement event is estimated based on the position information data. One or more previously mapped features within a proximity of the estimated path on a map are determined. The estimated path is matched to the map based on the previously mapped features to obtain a map-matched path. A display device is caused to render the map-matched path on an image of the map.

公开(公告)号：US11828857B2

公开(公告)日：2023-11-28

申请号：US18070395

申请日：2022-11-28

Applicant: Apple Inc.

Inventor： Mark G. Petovello ,  Isaac T. Miller ,  Kenneth M. Pesyna, Jr.

IPC: G01S19/22 ,  G01S19/39 ,  G01S19/40

CPC classification number: G01S19/22 ,  G01S19/393 ,  G01S19/40

Abstract: A device implementing a system for estimating device position includes at least one processor configured to receive a first sensor measurement of a device at a first time, the first sensor measurement having a first variance in measurement error, and to receive a second sensor measurement of the device at a second time, the second sensor measurement having a second variance in measurement error. The at least one processor is further configured to determine a speed of the device based on at least one of the first or second sensor measurements, and adjust the second variance in measurement error based on the determined speed. The at least one processor is further configured to estimate a device position based at least in part on the first variance in measurement error and the adjusted second variance in measurement error.