Ex parte HOFFMAN et al. - Page 3

          Appeal No. 1997-0384                                                        
          Application 08/086,498                                                      

               As further discussed, infra, we find that the applied                  
          references to Tsunoda and Hilsum, whether taken singly or in                
          combination, fail to teach or suggest at least the feature of               
          blanking during scrolling for a time proportional to a decay                

          of the display as defined in each of independent claims 1 and               
          18 on appeal.                                                               
               Representative independent claim 1 is reproduced below:1               
               1.  A display circuit for scrolling information image                  
          frames across a display area having a first end and a second                
          end such that message images move across the display area, the              
          first and second ends on opposite ends of the display area,                 
          the display circuit comprising:                                             
               a liquid crystal display element having a persistent                   
          display screen including the display area to display the                    
          information image frames thereupon, the persistent display                  
          screen having an associated image decay rate;                               
               a display signal generator coupled to the display element              
          to generate display signals which cause the display element to              
          sequentially display in the display area a plurality of                     
          information image frames which are periodically moved a                     

               1We note that the bracketed and underlined changes made in             
          representative claim 1 are included herein so as to best demonstrate our    
          understanding of what is being claimed as it is described in appellants’    
          specification.  Our understanding of what is being claimed is that no       
          information image is being displayed at the display element during the      
          blanking interval.                                                          

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