(19)
(11) EP 1 101 222 A1

(12)

(43) Date of publication:
23.05.2001 Bulletin 2001/21

(21) Application number: 00935336.8

(22) Date of filing: 25.05.2000
(51) International Patent Classification (IPC)7: G11B 20/00
(86) International application number:
PCT/GB0002/011
(87) International publication number:
WO 0074/053 (07.12.2000 Gazette 2000/49)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 26.05.1999 GB 9912312

(71) Applicant: Macrovision Europe Limited
Woodley,Reading,Berkshire RG5 3JP (GB)

(72) Inventor:
  • Edwards, Roger
    Reading,Berkshire RG5 3JP (GB)

(74) Representative: Needle, Jacqueline 
W.H. BECK, GREENER & CO7 Stone BuildingsLincoln's Inn
London WC2A 3SZ
London WC2A 3SZ (GB)

   


(54) THE COPY PROTECTION OF DIGITAL AUDIO COMPACT DISCS