You might be interested in reading the section at the end of v.3 of Knuth's "The Art of Computer Programming" on superimposed coding. It was first developed by

You might be interested in reading the section at the end of v.3 of Knuth's "The Art of Computer Programming" on superimposed coding. It was first developed by Mooers in the late 1940s as a way to reduce the number of punches needed on a punched card. Mooers was annoyed that the computer scientists decades after him re-discovered he principles he first worked on, but without citing him. Knuth points out the connection.