| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an annunciator system which sounds answer back buzzer with appropriate sound adapted to surrounding environments. <P>SOLUTION: A keyless entry actuation system 10 of a keyless entry system 1 performs locking/unlocking of a door by a remote control device of a driver, and outputs an operation signal to a control part 41 at the time of completion of the operation. Then the noise surrounding a vehicle is collected by a plurality of microphones 21 provided in each predetermined area. Then the properties of the annunciation sound are determined at a processing part 42 of the control part 41 based on the volume of the collected noise, like turning up the volume of the annunciation sound at the time of noisy environments surrounding the vehicle, or turning down the volume of the annunciation sound at the time of silent environments surrounding the vehicle. Then the annunciation sound of the determined properties is outputted from a buzzer 22 provided in correspondence with a predetermined area surrounding the vehicle through the medium of a buzzer drive part 43 in accordance with the operation signal. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
