Ex parte HAJDU et al. - Page 2




          Appeal No. 96-1246                                                          
          Applicaton No. 08/205,812                                                   


                                 DECISION ON APPEAL                                   
               This is a decision on appeal from the final rejection of               
          claims 1, 2, 12 through 15 and 17 through 20.  Claims 3                     
          through 11 and 16 have been canceled.                                       
               The invention relates to digitally filtering stereo data               
          to increase the quality of the audio information in an                      
          efficient manner.                                                           
               Independent claim 1 is reproduced as follows:                          
                    1.  An apparatus for recursively filtering in                     
                    parallel digital audio information, comprising:                   
                    (a) means for receiving digital audio                             
                    information, having a first set of digital                        
                    signals for a first channel and a second set of                   
                    digital signals for a second channel;                             
                    (b) means for receiving filter coefficients;                      
                    (c) means for recursively filtering the audio                     
                    information connected to said means for                           
                    receiving digital audio information and said                      
                    means for receiving filter coefficients, said                     
                    means for recursively filtering including means                   
                    for mathematically applying said coefficients to                  
                    said first and second sets of digital signals in                  
                    parallel with said means for receiving filter                     
                    coefficients; and                                                 
                    (d) means for storing the filtered audio                          
                    information.                                                      

               The references relied on by the Examiner are as follows:               
          Sakamoto et al. (Sakamoto)    4,507,728                Mar. 26,             
          1985                                                                        

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