In 1950 Feynman accepted a position as professor of theoretical physics at the California Institute of Technology. Since he had already planned a sabbatical leave before receiving the offer, he was able to arrange to spend the first ten months of his new appointment in Brazil.
Kanyang mga pangunahing papel sa paksang ito ay lumitaw sa 1950 at kasama na ito na nagsimula siya ng isang bagong paksa ng impormasyon sa loob ng teorya. Hamming code ay ng pangunahing kahalagahan sa coding teorya at ng mga praktikal na gamitin sa computer na disenyo.