Ex Parte HASSAN - Page 3



          Appeal No. 2000-1900                                                         
          Application No. 08/669,937                                                   

                    7.  A method for transmitting, comprising the steps of:            
                    performing a first coding of bits to be transmitted,               
               using a first code, to generate first coded bits;                       
                    performing a second coding of the first coded bits,                
               using a second code, to generate second coded bits;                     
                    transmitting the second coded bits over a TDMA                     
               communication channel to a receiver;                                    
                    receiving the second coded bits at the receiver as one             
               or more possibly corrupted codewords; and                               
                    decoding the second coded bits by correcting, in a                 
               first decoder, corrupted codewords within a threshold                   
               mathematical distance or generating, in the first decoder,              
               erasures for all corrupted codewords not within the                     
               threshold mathematical distance; and                                    
                    correcting, in a second decoder, errors and erasures               
               generated by the first decoder.                                         
               The Examiner relies on the following prior art:                         
          Saleh et al. (Saleh)          5,048,057            Sep. 10, 1991             
          Wei                           5,088,113            Feb. 11, 1992             
          McConnell                     5,206,864            Apr. 27, 1993             
          Boyd et al. (Boyd), “A Concatenated Coding Approach for High Data            
          Rate Applications,” NTC ‘77 Conference Record, Vol. 3, pp.36:2-1             
          to 36:2-7 (1977).                                                            
          Hassan et al. (Hassan), “On Decoding Concatenated Codes,” 36 IEEE            
          Transactions on Information Theory, No. 3, pp. 677-83 (May 1990).            
               Claims 1, 3, 4, 12, and 14-16 stand finally rejected under              
          35 U.S.C. § 103(a) as being unpatentable over Wei in view of                 
          Saleh.  Claims 7, 9-11, and 17-21 stand finally rejected under               
          35 U.S.C. § 103(a) as being unpatentable over Hassan in view of              
                                          3                                            




Page:  Previous  1  2  3  4  5  6  7  8  9  10  11  12  13  14  Next 

Last modified: November 3, 2007