公开(公告)号：US20230358847A1

公开(公告)日：2023-11-09

申请号：US18299011

申请日：2023-04-11

Applicant: Apple Inc.

Inventor： Michael P. Dal Santo ,  Christine Zhu ,  Adam M. Driscoll ,  Brandon J. Van Ryswyk ,  Richard B. Warren ,  Jared K. McGann

IPC: G01S5/02 ,  H04W64/00

CPC classification number: G01S5/0284 ,  H04W64/003

Abstract: Methods, non-transitory machine-readable mediums, and system to provide historical positioning information are described. In an embodiment, a device detects one or more conditions in user contextual data that trigger collection of a set of historical positions for a lookback window, the device receives at least one historical position from the set of historical positions for the lookback window, the device classifies the at least one historical position based on one or more features as a candidate location for a backtrack route, and the device determines to provide the at least one historical position as part of the lookback window based on the classification.