Umberto Eco's Communications Model
In his book, A Theory of Semiotics, written between 1967 and 1974, Umberto Eco rewrote the "usual communications model" as above (p.141), with strong influences from Claude Shannon and possibly Roman Jakobson.
The information of the message is only reduced by the addressee when he selects a definite interpretation.
He also wrote a paradoxical example of the problem facing the interpretant:
i vitelli dei romani sono belli
"Go Vitellius, to the sound of war of the Roman gods?"
"The lambs of the Romans are beautiful?"