02 Method and apparatus for performing synchronization between device Inventor: S. Park, C. Lim, N. Lee, and K. Kim Application No.: US9036759 Application Date: 2012-10-01

01 디바이스 간 직접 통신 서비스를 지원하기 위한 장치 및 방법 Inventor: C. Lim, K. Kim, S. Park, and N. Lee Application No.: KR1020120086759 Application Date: 2012-08-01 Registration No.: KR1018963850000 Registration Date: 2018-09-01