Ex parte BRUCE R. BOWMAN et al. - Page 8

          Appeal No. 96-0935                                                          
          Application 08/157,737                                                      

          modification is found in the appellants' admission that such EMI            
          is undesirable, the secondary references in which such EMI                  
          detected by a second system is signaled to another monitoring               
          system to avoid improper response by that other system, as well             
          as the self-evident advantages of providing a means for                     
          offsetting the presence of an undesirable signal, which would               
          have been known to the artisan.                                             
               With regard to step 10(e), we point out that "second alarm"            
          is a very broad phrase, which need not be audible or even                   
          different from the first alarm, as the appellants' arguments seem           
          to suggest.  Any second detecting system necessarily would                  
          provide a second alarm of some fashion in order to accomplish its           
          mission.  To the extent that this claim is interpreted to                   
          require that the second signal be different than that of the                
          first alarm, it is our opinion that one of ordinary skill in the            
          art would have found it obvious to provide a differing                      
          characteristic, so that one alarm could be discerned from the               
          other, for the self-evident advantages thereof.                             
               We therefore conclude that the combined teachings of the               
          three references establish a prima facie case of obviousness with           
          regard to the subject matter of claim 10, and we will sustain the           


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