Patent ID: 7957549
Filing Date: 2011-06-07
Classification: H03F,H04R

Abstract:
1. An acoustic apparatus comprising: a signal generation module configured to generate a measuring electric signal for measuring an acoustic characteristic of one of a right ear canal and a left ear canal and to generate a sound source electric signal for the other of the right ear canal and the left ear canal after a predetermined period of time; a transducer module comprising first and second electro-acoustic transducers that are attached to the right ear canal and the left ear canal and having a first operation mode of converting an electric signal to an acoustic signal and a second operation mode of converting an acoustic signal to an electric signal; and a switch module connected between the signal generation module and the transducer module, configured to set the one of the first and the second electro-acoustic transducers, attached to the one of the right ear canal and the left ear canal, to the first operation mode, to supply the measuring electric signal to the one of the first and the second electro-acoustic transducers, and to switch the operation mode of the one of the first and the second electro-acoustic transducers to the second operation mode in accordance with a change in level of the sound source electric signal, wherein the one of the first and the second electro-acoustic transducers is configured to convert the measuring electric signal to a measuring acoustic signal in order to output the measuring acoustic signal to the one of the right ear canal and the left ear canal and to convert a response acoustic signal, which is supplied from the one of the right ear canal and the left ear canal and responds to the measuring acoustic signal, to a response electric signal.