Ex parte TSAY et al. - Page 12




          Appeal No. 1996-3591                                                        
          Application No. 08/251,053                                                  


          language of Appellants’ claim 8, we find Masaki’s teaching of               
          a voltage divider to be cumulative to that of Iyengar which                 
          clearly illustrates a voltage divider 118, 120 in the                       
          multiplier circuit of Figure 7.  Further, after considering                 
          the Examiner’s analysis (Answer, page 5) of the limitations of              
          Appellants’ claim 8, it is our view that all of the claimed                 
          elements exist in the multiplier circuit illustrated in Figure              
          7 of Iyengar.  The claimed comparator is illustrated at 94 of               
          Iyengar’s Figure 7 and is shown coupled to a stabilizing                    
          feedback circuit with the voltage at node 108 equaling the                  
          voltage at line MVA (Iyengar, col. 17, lines 48-53).  The                   
          voltage divider 118, 120 of Iyengar in turn operates to reduce              
          the multiplied voltage dependent on the values of resistors                 
          118 and 120 as described at column 16, lines 38-42.  Further,               
          we agree with the Examiner’s analysis (Answer, page 6) that                 
          Iyengar’s P-channel transistors 110 and 112 and voltage                     
          divider resistors 118 and 120 meet all of the requirements of               
          dependent claims 9-14.  Accordingly, all of the elements of                 
          claims 8-14 have been shown to be fully disclosed by Iyengar.               
          A disclosure that anticipates under 35 U.S.C. § 102 also                    
          renders the claim unpatentable under 35 U.S.C. § 103, for                   
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