Ex parte HOFFMAN - Page 3




          Appeal No. 1997-1505                                        Page 3           
          Application No. 08/580,778                                                   


                                      BACKGROUND                                       
               The appellant's invention relates to a reference voltage                
          generator.  An understanding of the invention can be derived                 
          from a reading of exemplary claim 5, which is reproduced as                  
          follows:                                                                     
          5.   A reference voltage generator comprising:                               
               a phase lock loop;                                                      
               a frequency adjustment means coupled to the phase lock                  
          loop; said frequency adjustment means operable for adjusting                 
          loop frequency until a desired reference voltage is generated                
          at a selected node of said phase lock loop; and                              
               a circuit arrangement, operatively coupled to the                       
          frequency adjustment means, for locking the loop frequency at                
          a value whereat the desired reference voltage has been                       
          obtained.                                                                    

               The prior art references of record relied upon by the                   
          examiner in rejecting the appealed claims are :2                              
          Grandfield               4,862,015                 Aug. 29, 1989             
          Wahler et al. (Wahler)   5,170,297                 Dec.  8, 1992             
          Itri                          5,256,980                 Oct. 26,             
          1993                                                                         
          Blöckl                   5,187,384                 Feb. 16, 1993             



               The rejection of claims 1, 3, 4 and 9 under 35 U.S.C. § 103 over2                                                                      
          Wahler in view of Grandfield, Itri and Hamstra has been withdrawn by the     
          examiner (answer, page 2).                                                   







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