\input zb-basic \input zb-ioport \iteman{io-port 06103977} \itemau{Wen, Bin} \itemti{New optimal difference systems of sets from disjoint difference families.} \itemso{Far East J. Appl. Math. 68, No. 1, 49-54 (2012).} \itemab Summary: Difference systems of sets (DSSs) are combinatorial constructions which were introduced in 1971 by {\it V. I. Levenshtein} [Probl. Inf. Transm. 7, 215--222 (1971)] for the construction of codes for synchronization. In this paper, we give further constructions of optimal difference systems of sets from disjoint difference families. As a consequence, new infinite classes of optimal DSSs are obtained. \itemrv{~} \itemcc{} \itemut{difference system of sets; code synchronization; optimal; disjoint difference family} \itemli{http://www.pphmj.com/abstract/6964.htm} \end