Patent ID: 11940303
Assignee: SONY GROUP CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 11:
12. The position detection device according to claim 1, wherein the total number of cycles included in the difference between the reference position and the absolute position is determined according to the following equation, N
    err
   
   =
   
    round
    (
    
     
      Δ
      ⁢
      θ
     
     
      360
      ⁢
         
      
       deg
       /
       
        N
        A
       
      
     
    
    )
   
  
  ,
 

wherein Nerr is the total number of cycles, Δθ is the difference between the reference position and the absolute position, and NA is a number of cycles in the first track,
wherein the corrected absolute position is calculated according to the following equation, θ
    nt
   
   =
   
    
     θ
     onc
    
    -
    
     
      N
      err
     
     ·
     
      
       360
       ⁢
          
       deg
      
      
       N
       A
      
     
    
   
  
  ,, and
wherein θm is the corrected absolute position and θenc is the absolute position.