US 11,910,281 B2
Methods and systems for driver identification
Brad Cordova, Cambridge, MA (US); and Joe Adelmann, Cambridge, MA (US)
Assigned to Cambridge Mobile Telematics Inc., Cambridge, MA (US)
Filed by TRUEMOTION, INC., Boston, MA (US)
Filed on Feb. 11, 2021, as Appl. No. 17/174,220.
Application 14/477,519 is a division of application No. 14/192,452, filed on Feb. 27, 2014, granted, now 8,862,486, issued on Oct. 14, 2014.
Application 17/174,220 is a continuation of application No. 16/281,064, filed on Feb. 20, 2019, granted, now 10,952,044.
Application 16/281,064 is a continuation of application No. 14/477,519, filed on Sep. 4, 2014, granted, now 10,231,093, issued on Mar. 12, 2019.
Application 14/192,452 is a continuation of application No. 14/139,510, filed on Dec. 23, 2013, granted, now 9,398,423, issued on Jul. 19, 2016.
Claims priority of provisional application 61/882,383, filed on Sep. 25, 2013.
Claims priority of provisional application 61/745,935, filed on Dec. 26, 2012.
Claims priority of provisional application 61/745,931, filed on Dec. 26, 2012.
Claims priority of provisional application 61/745,934, filed on Dec. 26, 2012.
Prior Publication US 2021/0266713 A1, Aug. 26, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G06Q 40/00 (2023.01); H04W 4/40 (2018.01); G06Q 40/08 (2012.01); H04W 4/38 (2018.01); H04W 4/029 (2018.01); B60W 40/09 (2012.01); H04W 4/02 (2018.01); G07C 5/08 (2006.01)
CPC H04W 4/40 (2018.02) [B60W 40/09 (2013.01); G06Q 40/08 (2013.01); H04W 4/027 (2013.01); H04W 4/029 (2018.02); H04W 4/38 (2018.02); B60W 2420/905 (2013.01); B60W 2520/14 (2013.01); G07C 5/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
obtaining accelerometer data collected using an accelerometer of a mobile device;
determining a timestamp of a first event;
determining 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;
aligning the accelerometer data to the reference frame of the vehicle based on the direction of travel to provide aligned accelerometer data;
extracting a portion of the aligned accelerometer data within a window of time around the timestamp;
determining whether the first event is an entry event in which the mobile device enters the vehicle or an exit event in which the mobile device exits the vehicle;
determining a first component of the portion of the aligned accelerometer data along a first axis;
determining 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;
determining, 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;
determining, 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
determining, 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.