IP Library Granted Patent US 8,126,183
Granted Patent B2
US 8,126,183 · App. 11/966,773 · Granted Feb 28, 2012

Audio source tracking arrangement

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Quick Facts
Patent No.
US 8,126,183
App. No.
11/966,773
Granted
Feb 28, 2012
Kind
B2
Abstract

An audio source tracking arrangement, integrated in or connected to a video conference system, for determining a position of a source creating a sound, including: at least an audio signal processing module configured to determine the position of the source creating the sound based on a plurality of audio signals originating from the source respectively captured by a plurality of microphones; and one or more microphone housings, respectively encapsulating at least one of the plurality of microphones, the one or more microphone housings including a cavity in which at least one of the plurality of microphones is localized, an aperture on a surface of the microphone housing, and a channel extending from the cavity to the aperture, wherein the channel and the cavity are dimensioned to form an acoustical amplifier with a frequency response having one or more high frequency peaks in a frequency band of the sound.

Claims (9)

1. An audio source tracking arrangement, integrated in or connected to a video conference system, for determining a position of a source creating a sound, comprising:

at least an audio signal processing module configured to determine the position of the source creating the sound based on a plurality of audio signals originating from the source respectively captured by a plurality of microphones; and

one or more microphone housings, respectively encapsulating at least one of said plurality of microphones, said one or more microphone housings including a cavity in which at least one of said plurality of microphones is localized, an aperture on a surface of the microphone housing, and a channel extending from the cavity to the aperture, wherein

said channel and said cavity are dimensioned to form an acoustical amplifier with a frequency response having one or more high frequency peaks in a frequency band of the sound.

2. The sound source tracking arrangement according to claim 1 , wherein said plurality of microphones are MEMS microphones.

3. The sound source tracking arrangement according to claim 1 , wherein said plurality of microphones and the one or more microphone housings are integrated in a camera cover.

4. The sound source tracking arrangement according to claim 1 , wherein the position defines a reference point relative to which a camera or a processor adjusts a captured or viewed image.

5. The sound source tracking arrangement according to claim 2 , wherein said plurality of microphones and the one or more microphone housings are integrated in a camera cover.

6. The sound source tracking arrangement according to claim 2 , wherein the position defines a reference point relative to which a camera or a processor adjusts a captured or viewed image.

Assignments (2)
CONFIRMATORY ASSIGNMENT Recorded Dec 1, 2011
From: TANDBERG TELECOM AS; CISCO SYSTEMS INTERNATIONAL SARL
To: CISCO TECHNOLOGY, INC.
Reel/Frame 027307/0451 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 28, 2008
From: ENSTAD, GISLE; MARTON, TRYGVE FREDERIK; NIELSEN, JOHAN LUDVIG
To: TANDBERG TELECOM AS
Reel/Frame 020720/0971 →