Patent ID: 11881135
Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 12:
13. The terminal of claim 12, wherein:
the light sensor includes a plurality of m sensing channels, and the screen light intensity detection value detected by the light sensor includes converter count values of the light intensity detection values of the plurality of sensing channels;
the screen light intensity value Lux of the terminal is expressed as:, Lux
  =
  
   
    
     Lux
     ′
    
    *
    K
   
   =
   
    
     
      
       ❘
       "\[LeftBracketingBar]"
      
      
       
        
         
          Lux
          
           1
           ⁢
           m
          
          ′
         
        
       
       
        
         ⋮
        
       
       
        
         
          Lux
          nm
          ′
         
        
       
      
      
       ❘
       "\[RightBracketingBar]"
      
     
     *
     
      
       ❘
       "\[LeftBracketingBar]"
      
      
       
        K
        
         1
          
        
       
       ⁢
             
       …
       ⁢
         
       …
       ⁢
             
       
        K
        n
       
      
      
       ❘
       "\[RightBracketingBar]"
      
     
    
    =
    
     
      
       [
       
        
         
          
           
            K
            11
           
           *
           
            channel
            11
           
          
         
         
          …
         
         
          
           
            K
            
             1
             ⁢
             m
            
           
           *
           
            Lux
            
             1
             ⁢
             m
            
           
          
         
        
        
         
          ⋮
         
         
          ⋱
         
         
          ⋮
         
        
        
         
          
           
            K
            
             n
             ⁢
             1
            
           
           *
           
            Lux
            
             n
             ⁢
             1
            
           
          
         
         
          …
         
         
          
           
            K
            nm
           
           *
           
            Lux
            nm
           
          
         
        
       
       ]
      
      *
      
       
        ❘
        "\[LeftBracketingBar]"
       
       
        
         K
         
          1
           
         
        
        ⁢
              
        …
        ⁢
          
        …
        ⁢
              
        
         K
         n
        
       
       
        ❘
        "\[RightBracketingBar]"
       
      
     
     =
     
      
       ❘
       "\[LeftBracketingBar]"
      
      
       
        
         
          
           K
           1
          
          *
          
           (
           
            
             
              K
              11
             
             *
             
              channel
              11
             
            
            +
            
             …
             ⁢
               
             …
            
            +
            
             
              K
              
               1
               ⁢
               m
              
             
             *
             
              channel
              
               1
               ⁢
               m
              
             
            
           
           )
          
           
         
        
       
       
        
         ⋮
        
       
       
        
         
          
           K
           n
          
          *
          
           (
           
            
             
              K
              
               n
               ⁢
               1
              
             
             *
             
              channel
              
               n
               ⁢
               1
              
             
            
            +
            
             …
             ⁢
               
             …
            
            +
            
             
              K
              nm
             
             *
             
              channel
              nm
             
            
           
           )
          
         
        
       
      
      
       ❘
       "\[RightBracketingBar]"
      
     
    
   
  
 

where m represents the m sensing channels of the light sensor, n represents different types of light source spectrum, and channelnm is a converter count value corresponding to an n-th light source spectrum collected by the m-th sensing channel in the sensor; Knm is the fitting coefficient, and n different light source spectra correspond to different Knm fitting coefficients.