Patent ID: 11923975
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 6:
7. The restoring device according to claim 6, wherein the restored transformed channel transfer function HTR relates to a number T of time taps and a number K of spatial components, and is given in the form of a matrix:, HTR
   =
   
    
     (
     
      
       
        
         H
         0
        
       
      
      
       
        
         H
         1
        
       
      
      
       
        ⋮
       
      
      
       
        
         H
         τ
        
       
      
      
       
        ⋮
       
      
      
       
        
         H
         
          T
          -
          1
         
        
       
      
     
     )
    
    =
    
     (
     
      
       
        
         h
         
          0
          ,
          0
         
        
       
       
        
         h
         
          0
          ,
          1
         
        
       
       
        …
       
       
        
         h
         
          0
          ,
          k
         
        
       
       
        …
       
       
        
         h
         
          0
          ,
          
           K
           -
           1
          
         
        
       
      
      
       
        
         h
         
          1
          ,
          0
         
        
       
       
        
         h
         
          1
          ,
          1
         
        
       
       
        …
       
       
        
         h
         
          1
          ,
          k
         
        
       
       
        …
       
       
        
         h
         
          1
          ,
          
           K
           -
           1
          
         
        
       
      
      
       
        ⋮
       
       
        ⋮
       
       
        ⋱
       
       
        ⋮
       
       
        ⋱
       
       
        ⋮
       
      
      
       
        
         h
         
          τ
          ,
          0
         
        
       
       
        
         h
         
          τ
          ,
          1
         
        
       
       
        …
       
       
        
         h
         
          τ
          ,
          k
         
        
       
       
        …
       
       
        
         h
         
          τ
          ,
          
           K
           -
           1
          
         
        
       
      
      
       
        ⋮
       
       
        ⋮
       
       
        ⋱
       
       
        ⋮
       
       
        ⋱
       
       
        ⋮
       
      
      
       
        
         h
         
          
           T
           -
           1
          
          ,
          0
         
        
       
       
        
         h
         
          
           T
           -
           1
          
          ,
          1
         
        
       
       
        …
       
       
        
         h
         
          
           T
           -
           1
          
          ,
          k
         
        
       
       
        …
       
       
        
         h
         
          
           T
           -
           1
          
          ,
          
           K
           -
           1
          
         
        
       
      
     
     )
    
   
  
  ,
 

and wherein the processor is further configured to perform the time-to-frequency transformation before the inverse spatial transformation by performing the time-to-frequency transformation for each column of the matrix HTR and performing the inverse spatial transformation for each row of a matrix resulting from the time-to-frequency transformation, or
wherein the processor is further configured to perform the inverse spatial transformation before the time-to-frequency transformation by performing the inverse spatial transformation for each row of the matrix HTR and performing the time-to-frequency transformation for each column of a matrix resulting from the inverse spatial transformation.