HAND-FREE SPEECH DEVICE, HAND-FREE INTERPHONE SET AND HAND-FREE TELEPHONE SET

摘要

PROBLEM TO BE SOLVED: To provide the hand-free speech device where no speech head interruption takes place. ;SOLUTION: A voice signal of detected signal side is delayed by a preset time (set to be a value larger than a signal detection delay time and a time required for switching of attenuators 2, 3) by a voice signal delay section 14 or 15 and then given to an attenuator 2 or 3, from which the signal is outputted to an entrance slave set interface 7 or a speaker 5. Thus, the speech head interruption by a time required for switching control is avoided.;COPYRIGHT: (C)1999,JPO