(19)

(11)

EP 1 500 002 A1

(12)

(43) Date of publication: 26.01.2005 Bulletin 2005/04 (21) Application number: 03736502.0 (22) Date of filing: 29.04.2003

(51) International Patent Classification (IPC)7: G06F 17/30 (86) International application number: PCT/US2003/013145 (87) International publication number: WO 2003/098475 (27.11.2003 Gazette 2003/48)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 29.04.2002 US 376651 P 29.04.2002 US 376652 P 21.02.2003 US 371464 28.04.2003 US 425685 (71) Applicant: Sony Electronics Inc. Park Ridge,New Jersey 07656 (US)	(72) Inventors: VISHARAM, Mohammed, Zubair Santa Clara, CA 95050 (US) TABATABAI, Ali Cupertino, CA 95014 (US) WALKER, Toby Seattle, WA 98109 (US) (74) Representative: DeVile, Jonathan Mark, Dr.  D Young & Co120 Holborn London EC1N 2DY London EC1N 2DY (GB)