Ex parte O'BRIEN - Page 5




          Appeal No. 97-2657                                                          
          Application 08/359,286                                                      



          each time its corresponding device accesses the bus" as                     
          recited in claim 12.  On pages 9 through 12 of the brief and                
          in the reply brief, Appellant argues that Watanabe does not                 
          suggest modifying the Watanabe arbitration method or apparatus              
          to become Appellant's invention.                                            
                    Upon a close review of Watanabe, we fail to find                  
          that Watanabe teaches or suggests a timer that has a value                  
          indicating                                                                  
          an elapsed time since the at least one device last accessed                 
          the bus and an arbiter granting the device accessed the bus                 
          based upon the value of the timer.  We note that the Watanabe               
          abstract states that the counter section counts the duration                
          of the bus occupation of the bus master.  Watanabe further                  
          teaches that priority is given to the bus master with the                   
          shortest occupation time.  We further note in column 2, lines               
          20-30, that Watanabe                                                        




          teaches a counter section 5 for counting each duration of bus               



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