Ex parte DENT - Page 5




          Appeal No. 1996-0452                                                        
          Application 07/790,618                                                      



          to persuade us of the proper combinability of Fortuna and                   
          Jackson within                                                              
          35 U.S.C. § 103.  Fortuna's focus is to disclose an encoder to              
          encode PAM information into PCM information.  It appears the                
          examiner views this basic conversion as a decoding operation                
          for purposes of the claimed invention.  Even though Fortuna                 
          does teach a comparator for comparing an input signal to a low              
          value range and a separate comparator for comparing the same                
          signal to a high value range, there is no rational basis                    
          within 35 U.S.C.                                                            
          § 103 from the teachings of the references or even the                      
          reasoning of the examiner to persuade us that the artisan                   
          obviously would have provided any type of comparator-type                   
          operation from Jackson into Fortuna's system.  The examiner's               
          basic view is to add an additional or third comparator                      
          function from Jackson's teachings to compare an input with                  
          respective low and high threshold levels                                    
          to determine periods of instability of the signal.  The                     
          examiner does not persuade us, nor are we able to determine on              
          our own, why the artisan, let alone how the artisan, would                  

                                          5                                           





Page:  Previous  1  2  3  4  5  6  7  Next 

Last modified: November 3, 2007