Ex parte BIRZER - Page 5



          Appeal No. 1997-3743                                                        
          Application 08/419,166                                                      



          Mathews, thus necessitating reliance upon what was known in the             
          art.                                                                        
               According to the examiner's rejection, the second bus is bus           
          13 connecting the programming terminal 11 to the primary rack 12            
          in Figure 1 by means of UART 28 in Figure 2.  Column 4, lines 19            
          through 23 indicate that the port UART 28 may be coupled to other           
          types of serial devices for the exchange of data with the entire            
          processor module 20 shown in all of Figure 2.                               
               Claim 9 only recites a peripheral unit and an external unit            
          that appear to be indirectly interconnected.  In contrast to the            
          assertion at page 5 of the brief there are no claimed separate              
          peripheral interfaces and a communication interface in claim 9 on           
          appeal.  Only “a busable programming interface” is recited.                 
          Broadly speaking, according to the examiner's rationale and a               
          reliance upon Mathews, it appears that the first communication              
          processor 21 as well as the general purpose processor 60 along              
          with the second communication processor 70 provide clear                    
          indications in Figure 2 of this busable programming interface in            
          this reference notwithstanding the additional capability of                 
          input/output communications through the I/O rack interface                  
          circuit 38 further shown in detail in Figure 4, which in turn               
          provides two separate programmable processing elements for                  

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