A new modulo-N based digital clock synthesizer with an adjustable duty-cycle. - Chen-Feng Chen; Jiun-Jia Huang; Yawgeng A. Chau (APCCAS, 2008)

On the Design of Adaptive-Bandwidth All-Digital Phase-Locked Loops. - Yawgeng A. Chau; Chen-Feng Chen (J. Circuits Syst. Comput., 2011)