Patent Document ID: 4389639
Application ID: 06204059
Patent Status: 1

Claim One:
1. A voice warning device for a driver's compartment equipped with an entertainment sound production system comprising a plurality of speakers, an entertainment sound signal production device, and a plurality of electrical connections for conducting entertainment sound-bearing electric signals from the entertainment sound signal production device to said speakers; said voice warning device, comprising: a plurality of switching devices, each provided in one of said electrical connections between one of said speakers and said entertainment sound signal production device; a warning voice sound signal production device, for selectively generating electric signals representing human voice sounds for conveying a warning; and, means for operating said switching devices such that all of said switching devices are automatically switched to transmit entertainment sound-bearing electric signals from said entertainment sound signal production device to their respective speakers when said warning voice sound signal production device is not generating electric signals, but, when said warning voice sound signal production device is generating electric signals, at least one of said switching devices is automatically switched from transmitting entertainment sound-bearing electric signals from said entertainment sound signal production device to its respective speaker to transmitting warning voice sound-bearing electric signals from said warning voice sound signal production device to said respective speaker; said operating means automatically changing a number of said switching devices which transmit said warning voice sound-bearing electric signal to a respective speaker in accordance with a type of warning voice sound-bearing electric signal which is being produced so that said number is increased as the severity and urgency of the condition represented by the warning voice sound-bearing electric signal increases.