A phase locked loop with a mixed mode loop filter for clock/data recovery in optical disc drives. - Ping-Ying Wang; Hsiang Ji Hsieh; Yung-Yu Lin; Meng-Ta Yang; Hsueh-Wu Kao (ISCAS (5), 2005)

Chaos in delay locked loop. - Ping-Ying Wang; C.-H. Chou; Hsueh-Wu Kao (ISCAS, 2006)