Ex parte BANERJEE et al. - Page 6

          Appeal No. 1998-0943                                                        
          Application No. 08/300,500                                                  

          in McCain relating to the interactive operation between the                 
          hand-held unit and the host computer.                                       
               In response, Appellants’ primary argument (Brief, pages                
          10 and 11) centers on the alleged failure of McCain to                      
          disclose that the hand-held unit provides a response to the                 
          user in acknowledgment of received positional data from the                 
          input subsystem as recited in appealed claim 1.  We do not                  
          find such argument to be persuasive.  Positional information                
          is received by McCain’s hand-held unit through operation of a               
          touch screen input feature.  As discussed at col. 1, line 66                
          to col. 2, line 2 of McCain, “[a] Display Touch Scanner is                  
          used to scan the surface of the display to determine where and              
          when the display has been touched, to provide touch input to                
          the system, and to control the operation sequence for various               
          applications of the invention” (emphasis added).  McCain does               
          not provide an explicit disclosure of an acknowledgment to a                
          user in response to the input of positional data.  We note,                 
          however, that, although McCain may not spell out every detail               
          of the claimed invention, a reference anticipates a claim if                
          it discloses the claimed invention “such that a skilled                     
          artisan could take its teachings in combination with his own                

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