2-track (1,3) code with rate 2/3
Edward K. Orcutt, Michael W. Marcellin · Electronics Letters · 1992
Multitrack run-length-limited (d,k) modulation codes were recently introduced as a method to increase storage densities in digital recording systems. The Letter presents a two-track (1,3) code which achieves a code rate of R = 2/3.