ACOUSTIC TRANSDUCER DEVICE COMPRISING A PIEZO SOUND TRANSDUCER AND A MICROMACHINED ULTRASONIC TRANSDUCER (MUT), METHOD FOR OPERATING SAME, ACOUSTIC SYSTEM, ACOUSTIC COUPLING STRUCTURE, AND METHOD FOR PRODUCING AN ACOUSTIC COUPLING STRUCTURE

摘要

An acoustic transducer device comprises a piezo sound transducer designed to emit a first sound wave in an emitting direction in response to a triggering signal. The acoustic transducer device comprises a micromachined ultrasonic transducer (MUT) designed to supply an output signal in response to a second sound wave received from a receiving direction.