(19)
(11) EP 1 157 499 A1

(12)

(43) Date of publication:
28.11.2001 Bulletin 2001/48

(21) Application number: 00916232.2

(22) Date of filing: 10.03.2000
(51) International Patent Classification (IPC)7: H04L 9/00
(86) International application number:
PCT/US0006/296
(87) International publication number:
WO 0054/453 (14.09.2000 Gazette 2000/37)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 10.03.1999 US 123581 P
10.03.1999 US 123587 P
26.03.1999 US 126591 P
26.03.1999 US 126592 P
23.09.1999 US 404292
23.09.1999 US 404291

(71) Applicants:
  • Digimarc Corporation
    Tualatin,Oregon 97062 (US)
  • Acoustic Information Processing Lab, LLC.
    Stevenson, WA 98648 (US)

(72) Inventor:
  • LEVY, Kenneth, L.
    Stevenson, WA 98648 (US)

(74) Representative: Meddle, Alan Leonard et al
Forrester & BoehmertPettenkoferstrasse 20-22
80336 München
80336 München (DE)

   


(54) SIGNAL PROCESSING METHODS, DEVICES, AND APPLICATIONS FOR DIGITAL RIGHTS MANAGEMENT