Doors closing and opening state determining device for e.g. vehicle, has logic device that controls state of door of vehicle where memory of key stores state of door and displays state by warning light

摘要

The device has a key with a transmitter for controlling a closing/opening of a door of a vehicle, by transmitting a command to a receiver of the vehicle by an infrared or radio signal. A logic device controls the state of door of the vehicle and a transmitter of the vehicle transmits a signal representing a state of the door to the key, where a memory of the key stores the state and displays the state by a warning light.