Patent ID: 8462976
Filing Date: 2013-06-11
Classification: H04M,H04R

Abstract:
1. A voice conference device comprising: a circular plate-like case; a plurality of unidirectional microphones arranged along a first circle of the case and spaced at predetermined spacing along the first circle; a plurality of speakers arranged along a second circle of the case and spaced at equal intervals along the second circle; a voice collecting portion, including adding, delaying, and level detecting circuits; a communication controlling portion, including an input/output interface; and a voice emitting portion, including a mixing circuit, wherein the voice collecting portion: wherein the communication controlling portion: wherein the voice emitting portion produces and supplies voice emitting signals to the plurality of speakers, based on the voice-emitting voice signal from the communication controlling portion and the voice collecting direction information transmitted from the another voice conference device on the opposite side, wherein the first and second circles and the circular plate-like case are concentrically aligned, and wherein each of voice emitting directions of the plurality of speakers is directed outwardly away from a center of the second circle.