Ex parte DELARUELLE et al. - Page 3




          Appeal No. 1999-2050                                       Page 3           
          Application No. 08/576,544                                                  


                                                                                     
               Claim 1, which is representative for our purposes,                     
          follows:                                                                    
               1.   A method of interleaving a digital signal in                      
               which samples are delayed by an integral number                        
               times a unit delay, in accordance with a cyclically                    
               repeated delay pattern, comprising the following                       
               steps:                                                                 
                    cyclically activating parallel-arranged select                    
               lines of a memory at a cycle rate which is equal to                    
               the unit delay;                                                        
                    writing to the memory, during one activation of                   
               a select line, a relevant bit of each sample to be                     
               delayed in an integral number of sample groups, a                      
               sample group being associated with one delay pattern                   
               cycle; and                                                             
                    reading from the memory, during the one                           
               activation of the select line, which data includes a                   
               number of bits equal to the number of bits which is                    
               written, the bits being read in accordance with the                    
               delay pattern.                                                         


               The reference relied on in rejecting the claims follows:               
               Ben-Efraim et al.         5,592,492          Jan. 7, 1997              
               (Ben-Efraim)                       (filed May 13, 1994).               

          Claims 1-7 and 9 stand rejected under 35 U.S.C. § 102(e) as                 
          anticipated by Ben-Efraim.  Claim 8 stands rejected under 35                
          U.S.C. § 112, ¶ 2, as indefinite.  Rather than repeat the                   








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