4-subject 4-channel optical telemetry system for use in electrocardiograms. - Jongdae Park; Jinwoo Son; Heedon Seo; M. Ishida (ICECS, 1998)

Cost-efficient vertical handover between cellular networks and WLAN based on HMIPv6 and IEEE 802.21 MIH. - Jongdae Park; Hoyoung Ryu; Soon Seok Lee; Sueng Jae Bae; Ju Yong Lee; Mihui Kim; Min Young Chung (Int. J. Netw. Manag., 2013)