METHOD FOR IMPROVING SOUND QUALITY AND CORRECTING TONE IN HIGH FREQUENCY BAND BY EXTRACTING SPEECH SOUND FOR VOICE SIGNAL OF EUSTACHIAN TUBE USING IN-EAR MICROPHONE AND EXTERNAL MICROPHONE, AND EARPHONE PERFORMING SAME

摘要

Disclosed is an industrial Bluetooth earset for a noisy environment of a one-touch reel type foldable neckband design based on an IC including Bluetooth and DSP. The earset is applied with an in-ear microphone which provides a left/right earphone output automatical turn-on/off function in accordance with the application of a one-touch reel type earphone and the recognition of a one-touch button.;COPYRIGHT KIPO 2018