Patent ID: 6377169
Filing Date: 2002-04-23
Classification: G08B,G08G

Abstract:
A transmitted signal confirmation device comprising:a transmitter for transmitting a signal from a location at which exists a situation; a receiver for receiving a signal receipt confirmation signal transmitted by a facility outside said location indicating that the facility has received said signal transmitted by the transmitter; indicating mode determining means for determining, based on the situation existing at the location, one indicating mode out of at least two different indicating modes upon receipt of the signal receipt confirmation signal by the receiver so that a first indicating mode is determined when the situation existing at the location is one situation and a second indicating mode different from the first indicating mode is determined when the situation existing at the location is a situation different from said one situation; an indicator for outputting, in the indicating mode determined by the indicating mode determining means, a signal receipt confirmation indication providing an indication that the signal transmitted by the transmitter has been received by the facility.