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Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ming Zhang0
Date of Patent
July 26, 2011
0Patent Application Number
116220580
Date Filed
January 11, 2007
0Patent Primary Examiner
Patent abstract
The invention provides a beam forming method for a small array microphone apparatus to generate cone beam pattern by processing a combined bi-directional beam pattern of two virtual bi-directional microphones formed through at least three omni-directional microphones arranged in an L-shape. The invention also provides a small array microphone apparatus using the beam forming method according to the invention to suppress noise by processing a combined bi-directional beam pattern of two virtual bi-directional microphones formed through at least three omni-directional microphones arranged in an L-shape, thereby outputting a clear audio signal with cone beam pattern.
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