A time-to-digital converter using multi-phase-sampling and time amplifier for all digital phase-locked loop. - Kuo-Hsing Cheng; Chang-Chien Hu; Jen-Chieh Liu; Hong-Yi Huang (DDECS, 2010)

A 0.6-V 1.6-GHz 8-phase all digital PLL using multi-phase based TDC. - Yo-Hao Tu; Jen-Chieh Liu; Kuo-Hsing Cheng; Hong-Yi Huang; Chang-Chien Hu (IEICE Electron. Express, 2016)