Its always been my understanding that scores are handed to the ref. I live in Alberta Canada and when I go to live events the ref goes around and collects the scores from each judge between rounds. I assumed this was universal.
Only started in boxing within the last decade or so, I believe (decades seem to fly by now, hard to keep track). Might have been after the Eugenia WIlliams debacle when Lennox and Evander fought the first time. Anyway, I'd like to see it happen in the UFC.