Ex Parte HELLUMS 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                  and is not binding precedent of the Board.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. 15                


                          UNITED STATES PATENT AND TRADEMARK OFFICE                                    
                                                                                                      
                              BEFORE THE BOARD OF PATENT APPEALS                                       
                                         AND INTERFERENCES                                             
                                                                                                      
                     Ex parte JAMES R. HELLUMS and JAMES R. HOCHSCHILD                                 
                                                                                                      
                                       Appeal No. 2001-2694                                            
                                   Application No. 09/103,704                                          
                                                                                                      
                                              ON BRIEF                                                 
                                                                                                      
            Before KRASS, BARRETT and RUGGIERO, Administrative Patent Judges.                          
            KRASS, Administrative Patent Judge.                                                        


                                        DECISION ON APPEAL                                             
                  This is a decision on appeal from the final rejection of                             
            claims 1-9 and 13.                                                                         
                  The invention pertains to a time domain noise analyzer.  In                          
            particular, a simulator comprises a matrix of electrical circuit                           
            elements and an analyzer for analyzing transient responses of the                          
            circuit elements in the time domain with a known input signal to                           
            provide a deterministic current value for each of the elements.                            
            A noise source is associated with each circuit element for                                 

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