Patent ID: 7649443

Claim:
An antitheft apparatus comprising: a control section that conducts control of outputting an alarm when a theft is detected by a theft detecting section for detecting a theft of an object, wherein, when a status change from a closed state to an open state of a luggage door through a luggage door unlock action with a key or by a luggage door open command transmitted by a transmitter is detected in an arming state being ready to output an alarm, the control section shifts a status from the arming state to a disarmed state being not ready to output an alarm; when a status change from an open state to a closed state of a luggage door is detected in the disarmed state, the control section shifts the status from the disarmed state to the arming state after a predetermined length of preparatory period; and when an arming command to shift the status from the disarmed state to the arming state is given within the predetermined length of preparatory period, the control section shifts the status from the disarmed state to the arming state, the theft detecting section comprises a door detecting section for detecting an open state and a closed state of at least one of the luggage door and passenger doors, when a status change from a closed state to an open state of the at least one of the luggage door and the passenger doors is detected by the door detecting section within the predetermined length of preparatory period, the control section conducts control of outputting an alarm.