Ex parte YOKOMACHI et al. - Page 3




          Appeal No. 1997-4446                                                        
          Application No. 08/278,151                                                  


          value of said relative position error signal approaches zero                
          by closed loop control according to said detected relative                  
          position error signal;                                                      
               storage means for temporarily storing the control signal;              
          and                                                                         
               driving control means for driving another actuator out of              
          said plurality of actuators according to said stored control                
          signal, for tracking another head, operatively associated with              
          said another actuator, along a track.                                       
               25. A method for controlling the tracking of a plurality               
          of heads in a recording/reproduction apparatus, comprising the              
          steps of:                                                                   
               (a) providing relative movement between a first head and               
          a first data track;                                                         
               (b) detecting a relative position error signal of the                  
          first head with respect to the first data track;                            
               (c) generating a control signal for altering the                       
          position of the first head so that the value of the relative                
          position error signal approaches zero;                                      
               (d) temporarily storing the control signal for later use               
          in controlling a position of a second head;                                 
               (e) controlling the position of the second head in                     
          accordance with the stored control signal.                                  
               The prior art reference of record relied upon by the                   
          examiner in rejecting the appealed claims is:                               
          Yamashita                     4,924,325                     May             
          08, 1990                                                                    



                                          3                                           





Page:  Previous  1  2  3  4  5  6  7  8  9  10  11  12  Next 

Last modified: November 3, 2007