Patent ID: 11866772
Assignee: ROCHE MOLECULAR SYSTEMS, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC C  G | IPC C  G

Claim 9:
10. The computer product of claim 1, wherein calculating the minimal number of control chromosome molecules for the pre-amplification procedure is determined by:, Z
     ^
    
    
     0
     ⁢
     c
    
   
   =
   
    
     
      z
      
       1
       -
       
        η
        2
       
      
      2
     
     
      ψ
      2
     
    
    ⁢
    
     (
     
      
       1
       f
      
      -
      1
     
     )
    
   
  
  ,, where ψ is the pre-specified fetal DNA fraction error tolerance, ƒ is the determined fetal DNA fraction, η is the pre-specified error control number, and, z
  
   1
   -
   
    η
    2, is the, 100
   ⁢
   
    (
    
     1
     -
     
      η
      2
     
    
    )
   
   ⁢
     
   %
  
     
  -
  th, quantile of the standard Normal distribution.