| 摘要 |
<p>A hands-free device (1) comprises a cellular phone (90) of a driver, driver's speakers (11e) that output sounds to the driver, front speakers (11a and 11b) and rear speakers (11c and 11d) that output sounds widely in a car, a detection unit (13) that outputs a detection signal to indicate whether there is a fellow passenger in the car or not, by e.g. detecting the number of cellular phones brought in the car or voice detection and control equipment (10) that communicate with the cellular phone (90), in the case that the control equipment (10) receives telephone communication voice signal indicating telephone conversation voice of other party of the telephone conversation from the cellular phone (90), based on the detection signal outputted from the detection unit (13), when the control equipment (10) judges that there is no fellow passenger, the control equipment has the telephone conversation voice outputted mainly from the front speakers (11a and 11b) and the rear speakers (11c and 11d), and when the control equipment judges that there is a fellow passenger, the control equipment has the telephone conversation voice outputted mainly from the driver's speakers (11e), or in one embodiment to convert the voice to text and display it on the display unit (19).</p> |
