Ex parte KOGA et al. - Page 3




                 Appeal No. 1996-2198                                                                                                                   
                 Application 08/077,506                                                                                                                 



                          (3) C, which defines that the probability that the                                                                            
                 sequence of events will begin at state i (Brief at 10).                                                                                
                          Page 7 of the brief shows that the state transition                                                                           
                 probability distribution A can be represented as a matrix of                                                                           
                 discrete probability values.  As will appear, it was known in                                                                          
                 the art to represent the occurrence probability distribution B                                                                         
                 as either (1) a set of discrete probability values obtained                                                                            
                 from quantized feature vectors or (2) as a continuous                                                                                  
                 probability function derived from non-quantized feature                                                                                
                 vectors.  The § 103 question before us is whether it would                                                                             
                 have been obvious to represent the occurrence probability                                                                              
                 distribution as an approximate continuous probability function                                                                         
                 Bc derived from a set of discrete probability values B                                                                                 
                 obtained from quantized feature vectors.2                                                                                              

                                   2The Answer was accompanied by a copy of Rabiner &                                                                   
                 Juang, "An Introduction to Hidden Markov Models," IEEE ASSP                                                                            
                 Magazine, January 1986, pp. 12-15, which the examiner cites as                                                                         
                 "teach[ing] that it was obvious to extend any discrete model                                                                           
                 by substituting [sic, replacing] discrete probability                                                                                  
                 functions with continuous density functions" (Answer at 5).                                                                            
                 This publication will not be considered, because it is not                                                                             
                 mentioned in the statement of the § 103 rejection and was                                                                              
                 cited for the first time in the answer.  See Ex parte Movva,                                                                           
                                                                                                            (continued...)                              

                                                                         -3-                                                                            





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