Patent ID: 6844826

Claim:
An intervehicular alarm system for transmitting and receiving alarm information between a transmitting vehicle and a receiving vehicle, wherein said transmitting vehicle includes: detecting means for detecting position information of said transmitting vehicle; an operating unit for operation by a user of the transmitting vehicle for specifying from a plurality of types of alarms a type of alarm information; and transmitting means for transmitting said position information and said type of alarm information; and said receiving vehicle includes: receiving means for receiving said position information and said type of alarm information transmitted from said transmitting vehicle; means for determining a current position of the receiving vehicle; output means for outputting one of a plurality of alarm types to a user of the receiving vehicle; and control means for performing control of outputting said alarm information including means for calculating a distance between the receiving vehicle and the transmitting vehicle based on the current position of the receiving vehicle and said transmitted position information and for determining that said transmitting vehicle is within a predetermined distance less than an effective range of said transmitting means from said receiving vehicle based on said calculated distance, wherein said receiving means receives said type of said alarm information; and said control means selects one of said plurality of alarm types of said output means according to said type of said alarm information specified by said operating unit of said transmitting vehicle.