Patent ID: 11866004
Assignee: VOXX INTERNATIONAL CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  E  H | IPC B  E  H

Claim 19:
20. An article of manufacture comprising at least one non-transitory machine-readable storage device with program code stored in the at least one non-transitory machine-readable storage device, the program code comprising instructions for a system comprising a vehicle control system (VCS) and a radio frequency (RF) proximity sensor installed in a vehicle to
pair the VCS with the RF proximity sensor via a link in accordance with a short range RF communication standard;
estimate distances between the RF proximity sensor and an authorized user mobile device by measuring strength of RF transmissions of the authorized user mobile device received by the RF proximity sensor;
detect a departure event that occurs when the authorized user mobile device crosses from within a predetermined distance departure limit of the vehicle to outside of the predetermined distance departure limit of the vehicle, based on the step of estimating; and
perform at least one departure action in response to the departure event.