Ex parte PERKINS - Page 4




              Appeal No. 1997-0410                                                                                        
              Application No. 08/041,446                                                                                  


              convincing line of reasoning by the examiner.  In our view, Ansari does not disclose                        
              maintaining the occupancy relationship as recited in the language of claim 1 step (b).                      
                     In the rejection, the examiner interprets the claim language broadly since appellant                 
              has not set forth in the specification the criticality of the equations and the limits regarding            
              the encoder occupancy.  The examiner equates the claimed limits similar to those                            
              discussed in the cited case at page 10 of the answer and contends that the claimed limits                   
              are within the level of the skilled artisan in light of the general desirability of limits as               
              disclosed by Ansari.  We disagree with the examiner.  Although Ansari discloses                             
              maintaining the occupancy of the rate buffer between upper and lower limits, Ansari is                      
              silent as to the levels with respect to time.  Therefore, we will not sustain the rejection of              
              claim 1 and dependent claims 3 and 5 under 35 U.S.C. § 103.  Claim 8 contains similar                       
              limitations as claim 1; therefore, we will not sustain the rejection of claim 8 and dependent               
              claim 10.                                                                                                   
                     With respect to independent claim 12, the examiner relies upon the teachings of                      
              Paik and Lucas to teach additional limitations included in this claim.  The examiner has not                
              relied upon the two additional references to teach or suggest the missing teaching                          
              concerning the upper and lower limits, and from our review, we find that Paik and Lucas do                  
              not remedy the deficiency in Ansari; therefore, we will not sustain the rejection of claim 12               
              and dependent claims 2, 4, 6, 7, 9 and 11.                                                                  


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