申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE;SAMSUNG ELECTRONICS CO., LTD.;SK TELECOM CO., LTD;KT CORPORATION;KTFREETEL CO., LTD.;HANARO TELECOM., INC.;CHANG, SUNG-CHEOL;CHA, JAE-SUN;KIM, KYUNG-SOO;AHN, JEE-HWAN |
发明人 |
CHANG, SUNG-CHEOL;CHA, JAE-SUN;KIM, KYUNG-SOO;AHN, JEE-HWAN |