Audio conference apparatus

• US 8,565,464 B2
• Filed: 10/25/2006
• Issued: 10/22/2013
• Est. Priority Date: 10/27/2005
• Status: Active Grant

• Current Assignee: Yamaha Corporation
• Original Assignee: Yamaha Corporation
• Inventors: Ishibashi, Toshiaki, Kobayashi, Chikara, Suzuki, Kazumasa
• Primary Examiner(s): Vu, David
• Assistant Examiner(s): Han, Jonathan
• Application Number:
  US12/088,239
• Publication Number:
  US 20090041283A1
• Time in Patent Office: 2,554 Days
• Field of Search: 381360-361, 381/300, 381/307, 381/91, 381/95, 381/96
• US Class Current: 381/361
• CPC Class Codes: H04M 1/6033 for providing handsfree use or a loudspeaker mode in telephone sets arrangements for preventing acoustic echo H04M9/08
• CPC Class Codes: H04M 3/56 Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities video conference systems H04N7/15
• CPC Class Codes: H04R 1/026 Supports for loudspeaker casings
• CPC Class Codes: H04R 1/345 for loudspeakers
• CPC Class Codes: H04R 1/403 loud-speakers
• CPC Class Codes: H04R 1/406 microphones
• CPC Class Codes: H04R 2201/403 Linear arrays of transducers
• CPC Class Codes: H04R 29/008 Visual indication of individual signal levels visual indication of stereophonic sound image H04S7/40

Abstract

In an audio signal transmission/reception device that receives and emits sounds so as to perform transmission and reception of audio signals via communications, user operability can be improved and the size of a main unit can be reduced. It is equipped with a speaker array for arranging a plurality of speaker units, which are arranged on the lower surface of the main unit, and a microphone array for arranging a plurality of microphones, which are arranged on the side surface of the main unit in its longitudinal direction. Legs having hollow structures are attached to the main unit so as to support the main unit at a prescribed height above the mount surface (e.g., the surface of a desk) and to secure good sound emission characteristics of the speaker array.

Claims

1. An audio conference device comprising:

a main body having a prescribed shape and having a lower surface, an upper surface, opposing first and second side surfaces, and a third side surface extending between the opposing first and second side surfaces;

a speaker array having a plurality of speakers arranged on the lower surface of the main body;

an operation control arranged on the upper surface of the main body;

a microphone array having a plurality of microphones arranged on at least one of the first or second side surface of the main body, with each of the plurality of microphones positioned higher than the lower surface to minimize the microphones from collecting sound output from the speaker array;

at least one leg extending below the lower surface of the main body so that the speaker array is positioned at a prescribed height above a surface on which the audio conference device rests; and

at least one connector, through which a connection is established with another audio conference device, arranged on the third side surface of the main body near a leg among the at least one leg.

2. The audio conference device according to claim 1, wherein:

the main body has an elongated rectangular parallelepiped shape,

the opposing first and second side surfaces of the main body extend along a longitudinal direction thereof, and

the third side surface of the main body extend along a width direction thereof.

3. The audio conference device according to claim 1, wherein a pair of legs, each having an open structure to permit sound waves to pass therethrough to minimize interference with sound output from the speaker array, are provided at opposing ends.

4. The audio conference device according to claim 1, further comprising a display that displays sound emission characteristics of the speaker array.

5. The audio conference device according to claim 1, further comprising a display that displays the sound reception characteristics of the microphone array.

6. The audio conference device according to claim 3, were each of the legs is U-shaped.