Patent ID: 11919535
Assignee: nan
Field: Transport (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 10:
11. An improvement to a mobile phone having a magnetometer, a GPS receiver and an accelerometer, the improvement adapted to detect usage of the mobile phone by a driver of a vehicle by virtue of loading thereon:
a. program code for receiving contemporaneous heading and contemporaneous speed data associated with a contemporaneous Earth-frame-based heading and a contemporaneous speed of the vehicle;
b. program code for deriving, based solely on said contemporaneous heading and contemporaneous speed data, an incremental heading change, a sign associated with the incremental heading change that is one of positive or negative, and a calculated nominal radial acceleration;
c. program code for receiving inertial accelerometer data from an accelerometer onboard the mobile phone;
d. program code for calculating, based at least on said inertial accelerometer data, a measured actual radial acceleration of the mobile phone; and
e. program code for determining manual use by the driver as distinct from any passenger on the basis of at least a difference between the measured actual radial acceleration of the mobile phone relative to the calculated nominal radial acceleration.