(19)

(11)

EP 1 180 308 A1

(12)

(43) Date of publication: 20.02.2002 Bulletin 2002/08 (21) Application number: 00926096.9 (22) Date of filing: 17.04.2000

(51) International Patent Classification (IPC)7: H04N 7/12 (86) International application number: PCT/US0010/439 (87) International publication number: WO 0064/167 (26.10.2000 Gazette 2000/43)

(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: 17.04.1999 US 129854 P (71) Applicant: Pulsent Corporation Milpitas, CA 95035 (US)	(72) Inventors: PRAKASH, Adityo Redwood Shores, CA 94065-1267 (US) PRAKASH, Eniko, F. Redwood Shores, CA 94065-1267 (US) (74) Representative: Kazi, Ilya et al Mathys & Squire, 100 Gray's Inn Road London WC1X 8AL London WC1X 8AL (GB)