Ex parte WATANABE et al. - Page 4




             Appeal No. 1996-3846                                                                              
             Application No. 08/251,649                                                                        


                                                  OPINION                                                      

                   In reaching our decision in this appeal, we have given careful consideration to the         
             appellants’ specification and claims, to the applied prior art references, and to the             
             respective positions articulated by the appellants and the examiner.  As a consequence of         
             our review, we make the determinations which follow.                                              
                   The examiner maintains that Ogiue discloses a current mirror that is connected              
             indirectly to bit lines and base electrodes of the bipolar transistors. (See supplemental         
             answer at page 2.) Appellants argue that Figure 12 of Ogiue shows that the current mirror         
             (T35, T36, T38) is connected to the bipolar transistors and is not connected to the first and     
             second bit lines and the base electrodes of the current-controlled bipolar transistors.  (See     
             reply brief at page 1.)  We agree with appellants.  Appellants argue that Miyamoto similarly      
             shows in Figure 4 that the current mirror (53-56) is connected to the bipolar transistors (38,    
             39) and is not connected to the first and second bit lines and the base electrodes of the         
             current-controlled bipolar transistors.  (See reply brief at pages 1-2.)  We agree with           
             appellants.  Moreover, the examiner has not provided a convincing line of reasoning why it        
             would have been obvious to one of ordinary skill in the art at the time of the invention to       
             connect the “sense amplifier means further comprising a CMOS current mirror circuit               
             connected to said first and second bit lines and said base electrodes of said current-            
             controlled bipolar transistors” as recited in the language of claim 1.  Since the examiner        


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