Acoustic antenna for computer workstation
AssigneeFrance Telecom
InventorsYannick Mahieux, Gregoire Le Tourneur, Alain Saliou
Life of this patent
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Abstract
An acoustic antenna for computer workstation, used for video conferencing that comprises a plurality of microphones connected to a summator circuit. The microphones are distributed in a layout so as to form a substantially straight line and are each spaced with respect to a reference microphone placed in the vicinity of the vertical axis of symmetry of the screen of the workstation according to a specified law. The layout exhibits a substantially cylindrical directivity pattern whose axis of revolution is formed by the straight line.
Claims9
An acoustic antenna for computer workstation including a display screen and comprising a plurality of microphones connected to a summator circuit, said microphones being distributed in a layout so as to form at least one substantially straight line and each of said microphones being spaced, with respect to a reference microphone placed in the vicinity of the vertical axis of symmetry of the screen, according to a specified law, wherein the said layout comprises:
- a plurality of microphones distributed over a first line substantially horizontal and placed at the upper part of said screen,
- at least one microphone placed on a second and a third line respectively, said second and third lines being placed perpendicularly to the ends of said first line, said microphones of the first, second and third lines being arranged in a plane, said layout exhibiting a substantially cylindrical directivity pattern whose axis of revolution is formed by said at least one straight line.
An acoustic antenna for computer workstation including a display screen and comprising a plurality of microphones connected to a summator circuit, said microphones being distributed in a layout so as to form at least one substantially straight line and each of said microphones being spaced, with respect to a reference microphone placed in the vicinity of the vertical axis of symmetry of the screen, according to a specified law, wherein said layout comprises a plurality of microphones arranged on a straight support, said straight support being placed substantially in the vertical plane of symmetry of said display screen, said microphones being spaced with respect to said reference microphone according to a specified law so as to form an antenna of the "end-fire" type, said antenna being subdivided into sub-antennas, each sub-antenna comprising microphones spaced apart on the straight support by a specified distance, said layout exhibiting thus a substantially cylindrical directivity pattern whose axis of revolution is formed by said at least one straight line.
An antenna for computer workstation including a display screen and comprising a plurality of microphones connected to a summator circuit, said microphones being distributed in a layout so as to form at least one substantially straight line and each of said microphones being spaced, with respect to a reference microphone placed in the vicinity of the vertical axis of symmetry of the screen, according to a specified law, wherein said layout comprises a plurality of microphones arranged on a straight support, said straight support being placed substantially in the vertical plane of symmetry of said display screen, said microphones being spaced with respect to said reference microphone according to a specified law so as to form an antenna of the "end-fire" type, said antenna comprising a rigid rod forming said straight support together with a plurality of microphone supports, each microphone support being formed by a substantially symmetric double structural element mechanical piece, a first element being intended to provide for the placement of said microphone support on said rigid rod, and a second element being intended to receive and provide for the retention of a microphone, said antenna being subdivided into sub-antennas, each sub-antenna comprising microphones spaced apart on said straight support by a specified distance, said layout exhibiting thus a substantially cylindrical directivity pattern whose axis of revolution is formed by said at least one straight line.
Dependencies are inferred from the claim text.