Ex Parte LE - 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                                                 for publication and is not binding precedent of the Board.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. 13                   

                                          UNITED STATES PATENT AND TRADEMARK OFFICE                                                                       
                                                                     ____________                                                                         
                                                BEFORE THE BOARD OF PATENT APPEALS                                                                        
                                                               AND INTERFERENCES                                                                          
                                                                     ____________                                                                         
                                                               Ex parte BICH-CAU LE                                                                       
                                                                     ____________                                                                         
                                                                Appeal No. 2001-0682                                                                      
                                                             Application No. 09/003,572                                                                   
                                                                     ____________                                                                         
                                                                        ON BRIEF                                                                          
                                                                     ____________                                                                         
                  Before THOMAS, JERRY SMITH, and RUGGIERO, Administrative Patent Judges.                                                                 
                  RUGGIERO, Administrative Patent Judge.                                                                                                  



                                                               DECISION ON APPEAL                                                                         
                           This is a decision on the appeal from the final rejection of claims 1-52, which are all of the                                 
                  claims pending in the present application.                                                                                              
                           The claimed invention relates to an emulator which dynamically translates instructions in                                      
                  original code written for a first architecture into native code for a second architecture.  Various                                     
                  checkpoints in the original code are designated and the placement of the translated code instructions                                   
                  are speculatively reordered according to optimization procedures.  If a trap occurs during execution                                    
                  of the reordered code, the emulator resets the original code to the most recent checkpoint and                                          





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