Ex Parte GRIMSRUD et al - Page 4




         Appeal No. 2001-0462                                                      
         Application 08/885,325                                                    


         Appellants' brief presents no arguments as to McGillis and no             
         arguments against the combinability of McGillis and Akyürek               
         together within 35 U.S.C. § 103.  Appellants' arguments focus             
         only upon Akyürek.                                                        
              Although the examiner's statement of the teachings of                
         Akyürek at page 4 of the answer appear initially to be somewhat           
         broad, unclear and weakly reasoned, the responsive arguments              
         portion at page 6 contains a relatively clear correspondence of           
         the features argued in representative claim 20 on appeal of               
         tracing a sequence of logical file addresses and the resulting            
         mapping thereof to physical data blocks.  We therefore reproduce          
         here the substantive remarks of the examiner at page 6 of the             
         answer:                                                                   
                   A component labeled Reference Stream Analyzer                   
                   monitors the stream of data requests.                           
                   Periodically, it produces a list of hot                         
                   (frequently referenced) blocks, ordered by                      
                   frequency of reference to be stored in a Hot-Block              
                   Table (see page 92, last paragraph and page 93,                 
                   1st paragraph.)  The Hot-Block Table is used for                
                   containing a list of those most frequently                      
                   accessed blocks and their location addresses in                 
                   the reserved cylinders where the most often                     
                   accessed data blocks are stored in (see page 92,                
                   7th paragraph.)  And the incoming requests are                  
                   compared against this list and directed to the                  
                   reserved cylinders if the requested block resides               
                   there (i.e., the incoming data requests are                     
                   compared with the logical addresses inside the                  
                   hot-block-table, if there is a match, then a                    

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