Ex Parte NARAYANASWAMI - Page 1




                               The opinion in support of the decision being entered today was not                        
                                written for publication and is not binding precedent of the Board.                       

                                                                                     Paper No. 20                        


                              UNITED STATES PATENT AND TRADEMARK OFFICE                                                  
                                                   _____________                                                         
                                   BEFORE THE BOARD OF PATENT APPEALS                                                    
                                               AND INTERFERENCES                                                         
                                                   _____________                                                         
                                  Ex parte CHANDRASEKHAR NARAYANASWAMI                                                   
                                                   _____________                                                         
                                                Appeal No. 2001-0518                                                     
                                              Application No. 08/745,524                                                 
                                                   ______________                                                        
                                                      ON BRIEF                                                           
                                                  _______________                                                        

              Before HAIRSTON, FLEMING, and DIXON, Administrative Patent Judges.                                         
              DIXON, Administrative Patent Judge.                                                                        

                                               DECISION ON APPEAL                                                        
                     This is a decision on appeal under 35 U.S.C. § 134 from the examiner’s final                        
              rejection of claims 1 through 21, which constitute all the pending claims in the                           
              application.                                                                                               
                     The disclosed invention relates to a panoramic three-dimensional video                              
              conferencing system (brief at pages 2 and 3).  During conferencing the source video                        
              system calculates a difference image representing difference between a source image                        
              and a background image.  The difference image is the difference between the actual                         





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