Ex parte DULAC et al. - Page 6



          Appeal No. 1996-3365                                                        
          Application 08/258,357                                                      



                    teachings of Callison and Hillis would                            
                    arrive at the system architecture taught by                       
                    the appellant.  The same plurality of                             
                    inputs applied to a parity generation                             
                    circuit would be inputted to a first                              
                    plurality of multiplexers via a first                             
                    plurality of busses because the parity                            
                    generation circuit is used to check the                           
                    data it should be connected to an                                 
                    input/output for checking and determining                         
                    the data is correct after the read/write                          
                    operation.  (Emphasis added.) (Answer-page                        
                    8.)                                                               
                    We fail to see, in the Examiner’s explanation supra,              
          the claimed structure of the same plurality of inputs applied               
          to the parity generation circuit being inputted to the first                
          plurality of multiplexers via the first plurality of busses,                
          or how it would be obvious to create such a structure.  The                 
          Examiner’s explanation of what would or should be done is                   
          recited in generalities which do not meet the structural                    
          limitations claimed.                                                        
                    The Federal Circuit states that "[t]he mere fact                  
          that the prior art may be modified in the manner suggested by               
          the Examiner does not make the modification obvious unless the              
          prior art suggested the desirability of the modification."  In              
          re Fritch, 972 F.2d 1260, 1266 n.14, 23 USPQ2d 1780, 1783-84                



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