(19)

(11)

EP 1 163 794 A1

(12)

(43) Date of publication: 19.12.2001 Bulletin 2001/51 (21) Application number: 00916645.5 (22) Date of filing: 23.03.2000

(51) International Patent Classification (IPC)7: H04N 5/00, H04N 7/16 (86) International application number: PCT/US0007/823 (87) International publication number: WO 0057/637 (28.09.2000 Gazette 2000/39)

(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: 24.03.1999 US 125998 P (71) Applicant: MICROSOFT CORPORATION Redmond, WA 98052 (US)	(72) Inventor: MARSH, David, J. Redmond, WA 98053 (US) (74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät  Maximilianstrasse 58 80538 München 80538 München (DE)