Ex parte MUIRHEAD - Page 3




          Appeal No. 96-0750                                                          
          Application 07/944,561                                                      


          periodic RF pulses, comprising:                                             
                    RF detection means for detecting the RF pulse and                 
               providing an RF detector signal;                                       
                    first means for receiving said RF detector signal                 
          and                                                                         
               providing a second signal identical to said RF detector                
               signal and delayed relative thereto; and                               
                    second means for comparing the amplitude of said                  
               delayed signal to the maximum amplitude of said RF detec-              
          tor                                                                         
               signal and providing a comparison signal indicating the                
               presence or absence of said RF pulse.                                  



          The examiner relies on the following reference:                             
          Rhodes                        4,803,701          Feb. 07, 1989              
          Claims 1, 2, 20 and 21 stand rejected under 35 U.S.C.                       
           103.  As evidence of obviousness the examiner offers Rhodes               
          taken alone.                                                                
          Rather than repeat the arguments of appellants or the                       
          examiner, we make reference to the briefs and the answers for               
          the respective details thereof.                                             
          OPINION                                                                     
          We have carefully considered the subject matter on                          
          appeal, the rejection advanced by the examiner and the evi-                 

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