Ex parte BOERSTLER et al. - Page 5




          Appeal No. 95-4531                                                          
          Application No. 07/939,892                                                  


               common potential”; b) “a capacitance load....connected                 
               to the collector node”; or c) “the transistor being                    
               biased so that the emitter-base junction of said                       
               transistor is reversed biased”.                                        
                    To make Figure 8.41 read on this language in claim                
               6, it would require a complete reorganization of the                   
               circuit elements of the circuit of Figure 8.41 so that                 
               it would not [sic, no] longer perform its emitter                      
               follower function.  There is no teaching in Eden to do                 
               this.                                                                  
          We agree with appellants.  The obviousness rejection of claims 6            
          and 14 is reversed.                                                         
               Turning next to claims 7 and 15, the examiner contends                 
          (Answer, pages 4 and 5) that “[i]t would have been obvious to one           
          of ordinary skill in the art, at the time of the invention, to              
          have substituted Sedra et al.’s single diode with a ‘bipolar                
          transistor ... with its collector and emitter shorted’ as such a            
          substitution provides more current to the load and hence a faster           
          switching speed.”  Appellants argue (Brief, page 10) that the               
          claimed bipolar transistor forward biased at its collector-base             
          junction, and shorted at its collector and emitter would not have           









                                          5                                           





Page:  Previous  1  2  3  4  5  6  7  8  9  Next 

Last modified: November 3, 2007