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    5.
    发明专利
    未知

    公开(公告)号：NO20032062D0

    公开(公告)日：2003-05-08

    申请号：NO20032062

    申请日：2003-05-08

    Applicant: TANDBERG TELECOM AS

    Inventor： JOHANSEN TOM-IVAR ,  MUREN PETTER ,  MARTON TRYGVE FREDERIK

    IPC: H04N7/15 ,  H04R27/00 ,  G01S

    Abstract: An arrangement and a method of localizing active speakers in a video conference includes a localization device that locates at least one microphone relative to the camera, while the at least one microphone in turn localizes the relative positions of audio sources. As the microphones are usually positioned close to the audio source in a video conference, the ratio of the distance between microphones relative to the distance between table microphone and audio source is reduced. Thus, the microphones are able to determine the positions of the audio sources with a higher resolution than if placed close to the camera. When the respective positions of the microphones relative to the camera and the audio source are known, the position of the audio source relative to the camera is then determined by means of geometrical calculations.

    9.
    发明专利
    未知

    公开(公告)号：NO20044198D0

    公开(公告)日：2004-10-01

    申请号：NO20044198

    申请日：2004-10-01

    Applicant: TANDBERG TELECOM AS

    Inventor： MARTON TRYGVE FREDRIK ,  MUREN PETTER ,  NIELSEN JOHAN LUDVIG

    IPC: H04H20060101 ,  H04R27/00 ,  H04H

    Abstract: The present invention discloses an inventive microphone assembly for desktop communication systems. It utilises the advantages of placing the microphone in a desktop conferencing system as close as possible to the tabletop surface, without exposing the microphone for unfavourable mechanical or acoustic influence. This is achieved by building it into the footing in front of system, in a mechanically controlled and robust way. In this way, the high frequency response can be controlled to optimise sound quality, and at the same time the microphone assembly can be configured as a flexible unit that easily can be re-used in other systems.

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