A 16-channel neural stimulator with DAC sharing scheme for visual prostheses. - Kyomuk Lim; Jindeok Seo; Changho Seok; Hyoungho Ko (ISCAS, 2013)

A fully integrated electroencephalogram (EEG) analog front-end IC with capacitive input impedance boosting loop. - Seunghyun Lim; Changho Seok; Hyunho Kim; Haryong Song; Hyoungho Ko (CICC, 2014)

A versatile biopotential acquisition analog front end IC with effective DC offset and ripple rejection. - Seunghyun Im; Changho Seok; Hyunho Kim; Haryong Song; Hyoungho Ko; Dong-Il Dan Cho (ISIC, 2014)