(19)

(11)

EP 1 181 816 A1

(12)

(43) Date of publication: 27.02.2002 Bulletin 2002/09 (21) Application number: 00915857.7 (22) Date of filing: 24.02.2000

(51) International Patent Classification (IPC)7: H04N 5/335 (86) International application number: PCT/US0004/690 (87) International publication number: WO 0051/345 (31.08.2000 Gazette 2000/35)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 24.02.1999 US 120268 P 23.02.2000 US 510812 (71) Applicant: Sarnoff Corporation Princeton, NJ 08543-5300 (US)	(72) Inventors: MCCAFFREY, Nathaniel, Joseph Hopewell, NJ 08530 (US) WIXSON, Lambert, Ernest Rocky Hill, NJ 08553 (US) VAN DER WAL, Gooitzen, Siemen Hopewell, NJ 08525 (US) (74) Representative: Pratt, Richard Wilson  D. Young & Co, 21 New Fetter Lane London EC4A 1DA London EC4A 1DA (GB)