JPS5779542A - Electronic apparatus - Google Patents

Abstract

PURPOSE:To prevent erroneous operation performed by a person other than a specific operator by supplying a voice from a microphone to a voice registering circuit and a voice recognizing circuit respectively, and by permitting keyboard operation only when output signals of both the circuits are coincident with each other. CONSTITUTION:With a changeover switch 3 placed at a contact (a) side, a prescribed word as an operation start instruction is voiced to a microphone 1, and after the switch 3 is changed over to a contact (b) side, it is voiced similarly, thus storing the voice signals in a voice registering circuit 5 and a voice recognizing circuit 7 respectively. When the voice output signals of both the circuits are coincident with each other, an FF set signal 13 is outputted from a comparing circuit 9 to an FF11, and at the same time as the FF11 is set, a key energizing signal SE is supplied to a key signal inhibiting circuit 21 to send an arithmetic signal SC to a CPU25 with a key signal SK from a keyboard 23. Therefore, when a specific operator leaves his position temporarily, the switch 3 is placed at the contact (b) side and a different word from that supplied to the circuit 5 is voiced, so that the signal 13 will not be generated. Thus, erroneous operation by a key touch of another operator is prevented and it is hot necessary to switch a key switch, etc.