(19)
(11) EP 1 234 484 A1

(12)

(43) Date of publication:
28.08.2002 Bulletin 2002/35

(21) Application number: 00980830.4

(22) Date of filing: 28.11.2000
(51) International Patent Classification (IPC)7H04S 3/02
(86) International application number:
PCT/US0032/383
(87) International publication number:
WO 0104/1504 (07.06.2001 Gazette 2001/23)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 03.12.1999 US 454810
22.03.2000 US 532711

(71) Applicant: DOLBY LABORATORIES LICENSING CORPORATION
San FranciscoCalifornia 94103-4813 (US)

(72) Inventor:
  • FOSGATE, James, W.
    Heber City, UT 84302 (US)

(74) Representative: Hoffmann, Eckart, Dipl.-Ing. et al
Patentanwalt,Bahnhofstrasse 103
82166 Gräfelfing
82166 Gräfelfing (DE)

   


(54) METHOD FOR DERIVING AT LEAST THREE AUDIO SIGNALS FROM TWO INPUT AUDIO SIGNALS