Patent ID: 11908444
Assignee: GN HEARING A/S
Field: Other consumer goods (Other fields)
Classification: CPC G | IPC G

Claim 28:
29. The apparatus of claim 27, the filter weights being based on transfer function(s) for the aperture modeled as:, H
    ap
   
   (
   
    x
    ,
    k
    ,
    
     θ
     0
    
    ,
    
     ϕ
     0
    
   
   )
  
  =
  
   
    
     jck
     ⁢
     ρ
     ⁢
     0
    
    
     2
     ⁢
     π
    
   
   ⁢
   
    
     ω
     .
    
    0
   
   ⁢
   Δ
   ⁢
   
    L
    x
   
   ⁢
   Δ
   ⁢
   
    L
    y
   
   ⁢
   
    
     ∑
     
      i
      =
      1
     
     
      P
      ^
     
    
    
     D
     i, where x is a position, k is a wave number, (θ0, φ0)) is incident angle of a plane wave representing noise, j is an imaginary number, c is the speed of sound, ωo is a gain constant, ΔLx and ΔLy are aperture section dimensions and P∧ is a number of aperture sections, and Di is a directivity.