Ex Parte GORECKI et al - Page 1



               The opinion in support of the decision being entered                   
               today was not written for publication in a law journal                 
               and is not binding precedent of the Board.                             
                                                               Paper No. 12           

                      UNITED STATES PATENT AND TRADEMARK OFFICE                       
                                                                                     
                         BEFORE THE BOARD OF PATENT APPEALS                           
                                  AND INTERFERENCES                                   
                                                                                     
                      Ex parte JAMES L. GORECKI and YAOHUA YANG                       
                                                                                     
                                Appeal No. 2001-1615                                  
                             Application No. 09/053,251                               
                                                                                     
                                      ON BRIEF                                        
                                                                                     
          Before URYNOWICZ, HAIRSTON and DIXON, Administrative Patent                 
          Judges.                                                                     
          URYNOWICZ, Administrative Patent Judge.                                     

                                 Decision on Appeal                                   
          This appeal is from the final rejection of claims 1-3 and 5-                
          26.                                                                         
          The invention pertains to a digital-to-analog converter.                    
          Claim 1 is illustrative and reads as follows:                               
          1.  A composite digital-to-analog converter (DAC)                           
          comprising:                                                                 
                    a first DAC having a first range and a first error;               
                                         -1–                                          




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