Patent ID: 8217767

Claim:
A vehicle presence notification apparatus that generates a false engine sound towards an outside of a vehicle to report a presence of the vehicle, the vehicle presence notification apparatus using: a parametric speaker device that emits ultrasonic waves, which are prepared by applying an ultrasonic wave modulation to a false engine sound, towards an outside of the vehicle; and a vehicular horn device, wherein an application of a direct-current self excitation voltage exceeding a threshold value produces an intermittence of a magnetic force to cause a moving iron core to vibrate; a vibrating plate connected to the moving iron core vibrates along with the moving iron core, so that the vehicular horn device generates an alarm sound, wherein the vehicle presence notification apparatus provides the vehicular horn device with an electrical signal, which configures a false engine sound with a separate excitation voltage lower than the self excitation voltage, causing the vehicular horn device to generate the false engine sound.