Patent ID: 11867848
Assignee: NEATFRAME LIMITED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 6:
7. The method of claim 6, wherein the logit function takes a form:, L
   ⁡
   (
   t
   )
  
  =
  
   logit
   ⁢
     
   
    (
    
     
      
       
        ❘
        "\[LeftBracketingBar]"
       
       
        X
        ⁡
        (
        
         t
         ,
         
          
           f
           0
          
          +
          1
         
        
        )
       
       
        ❘
        "\[RightBracketingBar]"
       
      
      2
     
     
      
       
        
         ❘
         "\[LeftBracketingBar]"
        
        
         X
         ⁡
         (
         
          t
          ,
          
           
            f
            0
           
           -
           1
          
         
         )
        
        
         ❘
         "\[RightBracketingBar]"
        
       
       2
      
      +
      
       
        
         ❘
         "\[LeftBracketingBar]"
        
        
         X
         ⁡
         (
         
          t
          ,
          
           
            f
            0
           
           +
           1
          
         
         )
        
        
         ❘
         "\[RightBracketingBar]"
        
       
       2
      
     
    
    )
   
  
 

where X(t, f0+1) is a coefficient representing the upper frequency bin at time t, and X(t, f0−1) is a coefficient representing the lower frequency bin at time t.