(19)
(11) EP 1 486 071 A2

(12)

(88) Date of publication A3:
23.09.2004

(43) Date of publication:
15.12.2004 Bulletin 2004/51

(21) Application number: 02792388.7

(22) Date of filing: 13.12.2002
(51) International Patent Classification (IPC)7H04N 7/167
(86) International application number:
PCT/US2002/040051
(87) International publication number:
WO 2003/061173 (24.07.2003 Gazette 2003/30)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR
Designated Extension States:
AL LT LV MK RO

(30) Priority: 02.01.2002 US 37914
01.10.2002 CA 2405865

(71) Applicant: Sony Electronics Inc.
Park Ridge,New Jersey 07656 (US)

(72) Inventors:
  • CANDELORE, Brant, L.
    Escondido, CA 92029-6502 (US)
  • UNGER, Robert, Allan
    El Cajon, CA 92019 (US)
  • PEDLOW, Leo, M., Jr.
    Ramona, CA 92065 (US)
  • MIRSKY, Gregory
    Palo Alto, CA 94303 (US)
  • EYER, Mark, Kenneth
    Woodinville, WA 98072 (US)

(74) Representative: Turner, James Arthur et al
D Young & Co120 Holborn
London EC1N 2DY
London EC1N 2DY (GB)

   


(54) ELEMENTARY STREAM PARTIAL ENCRYPTION