Ex Parte SHINOHARA et al - Page 2




              Appeal No. 2002-1236                                                                                      
              Application No. 08/359,743                                                                                


                                                   BACKGROUND                                                           
                     Appellants’ invention relates to a radio telephone system.  An understanding of                    
              the invention can be derived from a reading of exemplary claim 1, which is reproduced                     
              below.                                                                                                    
                     1.     A radio telephone system including a base station connected to a                            
                     wire circuit and a plurality of mobile stations which perform radio                                
                     communications with the base station, respectively, said radio telephone                           
                     system comprising:                                                                                 
                            a base station echo-back transmit-receive section provided in said                          
                     base station for transmitting echo-back request signals to said mobile                             
                     stations, respectively, located in a radio zone of said base station and for                       
                     receiving echo-back response signals transmitted from said mobile                                  
                     stations; and                                                                                      
                            a mobile station echo-back transmit-receive section provided in                             
                     each of said mobile stations for transmitting one of the echo-back                                 
                     response signals in response to a corresponding one of the echo-back                               
                     request signals transmitted from said base station, so that all the mobile                         
                     station echo-back transmit-receive sections of said mobile stations which                          
                     received one of the echo-back request signals from said base station                               
                     transmit the echo-back response signals to notify said base station of their                       
                     presence in said radio zone.                                                                       
                     The prior art references of record relied upon by the examiner in rejecting the                    
              appealed claims are:                                                                                      
              Boudreau et al. (Boudreau)                5,369,681                   Nov. 29, 1994                       
              Simpson et al. (Simpson)                  5,475,863                   Dec. 12, 1995                       
                                                                             (filed Oct. 4, 1993)                       
                     Claims 1 and 3 stand rejected under 35 U.S.C. § 102 as being anticipated by                        
              Boudreau.  Claims 4-6, 8, and 9 stand rejected under 35 U.S.C. § 103 as being                             

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