Ex Parte Hejza Litwiller - Page 6

                   Appeal 2007-0919                                                                                               
                   Application 10/179,555                                                                                         

                   produced when transitioning from the “NO TOUCH” state (102) to the                                             
                   “BLANK” state (100).  The “NO TOUCH” state is entered when the finger                                          
                   is not touching the touch panel and the “BLANK” state is entered when the                                      
                   finger touches the background area of the touch panel—the area not within                                      
                   any virtual button (col, 8, ll. 41-47).  In addition, an “UP-AUDIO RIDGE”                                      
                   sound is produced when the finger moves from the background area to a                                          
                   particular button, while a “DOWN-AUDIO RIDGE” sound is produced                                                
                   when the finger moves from the button to the background area (col. 9, ll. 46-                                  
                   58).  Hence, Vanderheiden discloses that some type of sound (background,                                       
                   UP-AUDIO RIDGE, or DOWN-AUDIO RIDGE) is produced in the second                                                 
                   mode of operation when the finger touches the touch panel.2  In contrast,                                      
                   these sounds are disabled in the first (non-audio) mode of operation and                                       
                   therefore no sound is produced when the finger touches the touch panel (col.                                   
                   6, ll. 18-26).                                                                                                 
                          During operation, Vanderheiden explains that the second mode of                                         
                   operation can be activated by pressing against the upper right hand corner                                     
                   (56) on the display and drawing leftward at least half way across the top of                                   
                                                                                                                                 
                   2 Vanderheiden explains that no sound is generated in the second mode of                                       
                   operation when the finger is not touching the touch panel (col. 9, l. 64 to col.                               
                   10, l. 2).  Vanderheiden describes this as the “NO TOUCH” state (col. 8, ll.                                   
                   46-47).                                                                                                        
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