Patent ID: 9736596
Date: 2017-08-15
CPC Classifications: H04R

Claim:
1. A microphone comprising: a case in which a plurality of sound holes are formed; a first sound device mounted in the case and installed at a position corresponding to at least two sound holes formed in an upper surface and a lower surface of the case, respectively; a second sound device mounted in the case, installed to be spaced apart from the first sound device by a predetermined interval, and installed at a position corresponding to another sound hole formed in the case; and a semiconductor chip electrically connected to the first sound device and the second sound device, wherein the first sound device receives sound source signals through each of the at least two sound holes formed in the upper and lower surfaces of the case and transmits a first sound output signal, which is a bi-directional signal, to the semiconductor chip, and the semiconductor chip receives a second sound output signal, which is an omnidirectional signal, from the second sound device, and outputs a final sound signal, which is a uni-directional signal, using the first sound output signal and the second sound output signal.