They use this data to then replicate humans from the past. For whoever they plan to effectively raise from the dead, the data of sub-atomic make-up is extracted from the system, and then that is used to generate the biological tissue of the individual.
It is one of Henry's grandfathers that they are planning to bring back from the dead first.
The simulation of his grandfather is almost complete. They are using the data from five minutes before his grandfather passed away. If the technology works, then his grandfather, Deon, will be alive again, memories and all.
Then of course, they will apply current bio-medical technologies to Deon's physiology so that Deon's body is like that of a 23 year old. Deon passed away 5,000 years ago.
Five hours pass.
Now that the simulation is finished, and the data extracted, the machine begins to recreate Deon's molecular structures.
After another five hours, the process is finished. Henry and his team can see Leon through the glass of the reconstruction chamber. Deon opens his eyes and his vital signs are strong.