Ex parte DORAN et al. - Page 4

          Appeal No. 1997-0014                                                        
          Application No. 08/192,937                                                  

               Reference is made to the briefs and the answers for the                
          respective positions of the appellants and the examiner.                    
               The obviousness rejection of claims 3, 5, 7, 8, 25                     
          through 29, 42, 44 and 46 is reversed because the applied                   
          references neither teach nor would have suggested to the                    
          skilled artisan the initiation of a series of processing steps              
          on scanned lines of pixels from a document scanner before the               
          last line of pixels is derived from scanning the document.                  
               The examiner is of the opinion (Supplemental Answer,                   
          paper number 24, page 5) that:                                              
                    With respect to the limitation that the image                     
               processing (thresholding and compressing) steps take                   
               place “before the last line of pixels is derived                       
               from said scanning said document,” the Examiner                        
               notes that D’Aoust ‘100 at least suggests this                         
               feature since the memory (50) used to store image                      
               information can hold only four columns of image data                   
               (see column 5) and therefore could not contain the                     
               entire document image at one time . . . .  Given                       
               D’Aoust’s basic parallel processing system, it would                   
               have been obvious to one of ordinary skill in the                      
               art to begin the image processing steps before                         
               scanning the entire document in order to reduce the                    
               need for large, expensive memories and in order to                     
               provide the fastest and most efficient possible                        
               system.  Clearly, the goal of any parallel pipeline-                   
               based system such as D’Aoust discloses is to perform                   
               operations concurrently rather than sequentially so                    
               that maximum efficiency can be achieved.                               

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