| 摘要 |
<p>PURPOSE:To prevent the erroneous recognition of a voice due to din, noise, etc. from the outside, by inhibiting the voice recognition in accordance with the output state of a signal indicating the operation state of a device to be controlled or its peripheral device. CONSTITUTION:When a power switch is turned on, a controlling circuit 50 discriminates whether switches 191-193 are closed or not. That is, the circuit 50 discriminates whether a window 100 is opened or not, whether a door is opened or not, and whether a shift lever is set to the position of a back gear or not in accordance with states of switches 191-193. If any of switches 191-193 is closed, an input break switch 20 is opened to inhibit a voice input signal from being given from a microphone 17 to a voice recognizing circuit 60. If switches 191-193 are opened, the circuit 50 gives a control signal for making the switch 20 to the switch 20. Thus, the switch 20 is closed, and the microphone 17 and the circuit 60 are connected.</p> |
