Ex Parte DOWELL et al - 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              The opinion in support of the decision being entered today was not written for publication and is not binding precedent of the Board.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. 23            
                        UNITED STATES PATENT AND TRADEMARK OFFICE                                             
                                                 ____________                                                 
                             BEFORE THE BOARD OF PATENT APPEALS                                               
                                          AND INTERFERENCES                                                   
                                                 ____________                                                 
                           Ex parte CRAIG M. DOWELL and GEOFFREY T. DUNBAR                                    
                                                 ____________                                                 
                                             Appeal No. 2002-1777                                             
                                           Application No. 08/953,219                                         
                                                 ____________                                                 
                                                   ON BRIEF                                                   
                                                 ____________                                                 
            Before HAIRSTON, LALL, and BARRY, Administrative Patent Judges.                                   
            BARRY, Administrative Patent Judge.                                                               


                                            DECISION ON APPEAL                                                
                   A patent examiner rejected claims 1-30.  The appellants appeal therefrom under             
            35 U.S.C. § 134(a).  We reverse.                                                                  


                                               BACKGROUND                                                     
                   The invention at issue on appeal concerns the streaming of compressed images               
            over a computer network.  The Joint Photographic Experts Group ("JPEG") image                     
            compression algorithm can be used to compress images for transmission via a                       
            computer network.  JPEG operates by first transmitting initial, absolute value data and           
            then transmitting subsequent difference data, which is based on the preceding                     






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