P
PatentIndex
Search
Landscape
Sign in
Inventor
IM SUNG HO
KR
2 patents
Patents
2 patents
US7702130B2
Apr 20, 2010
User interface apparatus using hand gesture recognition and method thereof
KOREA ELECTRONICS TELECOMM
435 citations
96
US8010229B2
Aug 30, 2011
Method and apparatus for returning cleaning robot to charge station
KOREA ELECTRONICS TELECOMM
35 citations
90