Ex Parte Litwin - Page 5



            Appeal 2007-0635                                                                               
            Application 10/176,598                                                                         

                  including manual intervention detected during playing of media files such as             
                  skipping, or opting to not listen to, media files (col. 8, lines 28-31) and              
                  listening to the media files (col. 7, lines 40-47).                                      
            Answer 3.                                                                                      
            6. There appears to be a dispute over the scope of Ward; i.e., whether Ward                    
            suggests ranking media files found on media playback devices according to how                  
            long a user has played a media file, notwithstanding that it indisputably discloses            
            ranking media files according to the number of times a file has been played. This              
            comes through in the debate over the difference between the claimed method and                 
            Ward. See below.                                                                               
            Differences between the prior art and the claims at issue.                                     
            7. The Examiner characterizes the difference between Ward and the claimed                      
            method as follows:                                                                             
                  Ward does not expressly disclose the popularity metrics being proportional               
                  to a total amount of playback time that the user plays back a corresponding              
                  one of the media files. However, since Ward does teach monitoring user play              
                  patterns of media files, particularly, whether or not a user listens to a media          
                  file, Ward does teach the popularity metrics being proportional to a total               
                  amount of times a user plays back a media file. Therefore, Ward already has              
                  the means with which to measure a total amount of playback time.                         
            Answer 3-4. Emphasis added.                                                                    
            8. Appellant argues that                                                                       
                         Ward is directed towards an operation of modifying play lists (for the            
                  playback of audio and video files) in view of how popular such files are. The            
                  reference discloses that the system reports to a user, "that a user has listened         
                  to an item," (Ward, col. 7, lines 40-42), which such an item is on the play              
                  list. The specifics of what is reported to is determined by, "when the user              
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