(19)
(11) EP 2 090 049 A1

(12)

(43) Date of publication:
19.08.2009 Bulletin 2009/34

(21) Application number: 07851250.6

(22) Date of filing: 04.12.2007
(51) International Patent Classification (IPC): 
H04L 27/18(2006.01)
(86) International application number:
PCT/KR2007/006259
(87) International publication number:
WO 2008/069556 (12.06.2008 Gazette 2008/24)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

(30) Priority: 07.12.2006 KR 20060124121

(71) Applicants:
  • Electronics and Telecommunications Research Institute
    Yuseong-gu Daejon 305-350 (KR)
  • Institute For Research Industry Cooperation, PNU
    Busan-city 609-735 (KR)

(72) Inventors:
  • LIM, Hyoungsoo
    Daejeon-city 305-761 (KR)
  • KIM, Young-Su
    Daejeon-city 301-760 (KR)
  • CHOI, Seomee
    Daejeon-city 305-301 (KR)
  • LIM, Jong-Soo
    Daejeon-city 301-831 (KR)
  • KWON, Dae-Ken
    Busan-city 609-735 (KR)
  • KIM, Hyoung-Nam
    Busan-city 609-763 (KR)

(74) Representative: Boakes, Jason Carrington 
Harrison Goddard Foote
106 Micklegate York, Yorkshire YO1 6JX
106 Micklegate York, Yorkshire YO1 6JX (GB)

   


(54) AMPLITUDE-DIFFERENTIAL PHASE SHIFT KEYING MODULATION APPARATUS AND METHOD