TITLE:      A 2-track (1,3) code with rate 2/3
AUTHORS:    E. K. Orcutt and M. W. Marcellin
JOURNAL:    Electronics Letters
ABSTRACT:
Multi-track run-length-limited (d,k) modulation codes were recently introduced
as a method to increase storage densities in digital recording systems.
This letter presents a 2-track (1,3) code which achieves a code rate of
R=2/3.