Inventor
OH SEUNG TAKE
KR3 patents
Patents
3 patentsUS10362443B2Jul 23, 2019
System and method for automatically detecting exit and entry for interest region
DOOSAN HEAVY IND & CONSTRUCTION CO LTD3 citations67
US11079460B2Aug 3, 2021
Position determination device for terminal
DOOSAN HEAVY IND & CONSTRUCTION CO LTD0 citations55
US10735898B2Aug 4, 2020
Device for determining location of terminal
DOOSAN HEAVY IND & CONSTRUCTION CO LTD1 citations55