Ex parte DEPUE - Page 3




          Appeal No. 1998-1696                                                        
          Application No. 08/562,197                                                  


               at least two output electronic connections for the                     
          generation of signals for two internal analog telephone                     
          subscriber lines for connection to analog terminal subscriber               
          equipment;                                                                  
               multiplexing and demultiplexing circuitry for data voice               
          communications for said at least two internal analog telephone              
          subscriber lines;                                                           
               AC power supply provided by said subscriber;                           
               detection and generation circuitry for analog telephone                
          signaling and control, and                                                  
               wherein said at least two external analog telephone                    
          subscriber lines supplied by a telephone service provider are               
          functionally connected to said analog terminal subscriber                   
          equipment through said master multiplexer, multiplexed across               
          said interior preexisting conventional two conductor telephone              
          wire, received by said slave multiplexer and connected to said              
          at least two internal analog telephone subscriber lines                     
          thereby increasing the internal preexisting line capacity                   
          without physically adding additional lines internally.                      

               The examiner relies on the following references:                       
          Williamson et al. (Williamson)  4,999,613     Mar. 12, 1991                 
          Fry et al. (Fry)                5,140,630     Aug. 18, 1992                 
          Yeh                             5,347,164     Sep. 13, 1994                 


               Claims 2 through 12, 14 and 15 stand rejected under                    
          35 U.S.C. § 103.  As evidence of obviousness, the examiner                  
          cites Fry with regard to claims 2 through 7, 9 through 12 and               
          15, adding Williamson with regard to claim 8 and adding Yeh to              
          Fry with regard to claim 14.                                                
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