Patent ID: 11910281
Assignee: CAMBRIDGE MOBILE TELEMATICS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H  B  G | IPC B  G  H

Claim 17:
18. An apparatus comprising:
one or more sensors comprising an accelerometer;
a memory that stores a set of instructions; and
a processor configured to execute the set of instructions to:
obtain accelerometer data from the accelerometer;
determine a timestamp of a first event;
determine a direction of travel of a vehicle with respect to a reference frame of the vehicle during a driving event before or after the first event;
align the accelerometer data to the reference frame of the vehicle based on the direction of travel to provide aligned accelerometer data;
extract a portion of the aligned accelerometer data within a window of time around the timestamp;
determine whether the first event is an entry event in which a mobile device enters the vehicle or an exit event in which the mobile device exits the vehicle;
determine a first component of the portion of the aligned accelerometer data along a first axis;
determine a second component of the portion of the aligned accelerometer data along a second axis, wherein the second axis is orthogonal to the first axis;
determine, based on whether the first event is an entry event or an exit event, the first component, and the second component, whether the first event occurs on a left side or on a right side of the vehicle to obtain a first determination result;
determine, based on the portion of the aligned accelerometer data, whether the mobile device is on a front side or on a rear side of the vehicle to obtain a second determination result; and
determine, based on the first determination result and the second determination result, a position of the mobile device in the vehicle during at least a portion of the driving event.