COMMUNICATION TERMINAL DEVICE AND COMMUNICATION METHOD

摘要

PROBLEM TO BE SOLVED: To reduce echo caused by structural factors and to ensure necessary sound quality and frequency characteristics of a voice output from a speaker. SOLUTION: The communication terminal device is provided with a cushion 10 for shielding a voice input part against the voice output from the speaker 5 and an air-bleeding hole which equalizes the air pressure on the sound producing side where the voice output is outputted from the speaker 5 and the air pressure on the opposite side of the sound producing side with respect to the speaker 5 in a chamber shielded by the cushion 10. COPYRIGHT: (C)2005,JPO&NCIPI