Ex Parte CHANG et al - Page 7



          Appeal No. 2004-1450                                                        
          Application No. 09/449,015                                                  


          Wong fails to teach or suggest the system architecture recited in           
          the claimed invention.  As noted by the examiner, Wong teaches a            
          three-tier computer architecture in which the server computer 12            
          operates in-between the hospital computers and the client                   
          computers.  The diagram of Wong’s system architecture in Figure 1           
          indicates that there are no direct communications between the               
          hospital computers and the client computers.  All communications            
          between the hospital computers and the client computers must go             
          through the server computer.  Appellants’ claims, however, recite           
          that a sender computer sends a static reference to a recipient              
          computer which identifies a source image on the server computer.            
          Thus, the claimed invention eliminates the need for the sender              
          computer to communicate with the server.  As noted by appellants,           
          this architecture permits the static reference to be sent from              
          the sender computer to the recipient computer over a low                    
          bandwidth link while the recipient computer can receive the                 
          images from the server computer over a high bandwidth link.                 
          Since the architecture required by the claimed invention is not             
          the same as the architecture taught by Wong, and since the                  



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