Patent ID: 7663471

Claim:
An in-vehicle device remote control system, comprising: a plurality of transmitters that are disposed at a plurality of given positions of a vehicle and transmit transmission request signals, which form different detection areas outside doors of the vehicle; a mobile device that transmits a response signal in response to the transmission request signal when entering the detection areas; a receiver that is disposed in the vehicle and receives the response signal of the mobile device; determining means that executes a given matching process with respect to the response signal of the mobile device for determining that the mobile device is an authorized mobile device when matching is confirmed; operation control means that controls an operation state of the in-vehicle device based on a determination of the determining means that the mobile device is the authorized mobile device; control door determining means that determines a detection area in which the mobile device exists based on the response signal of the mobile device and the transmission request signals of the transmitters and sets a door corresponding to the determined detection area as a control door; a memory device that stores a notifying operation with respect to each control door; and notifying means that executes the notifying operation of the control door determined based on storage contents of the memory device.