(19)

(11)

EP 1 588 288 A2

(12)

(88) Date of publication A3: 09.12.2004 (43) Date of publication: 26.10.2005 Bulletin 2005/43 (21) Application number: 03815662.6 (22) Date of filing: 23.12.2003

(51) International Patent Classification (IPC)7: G06F 17/30 (86) International application number: PCT/US2003/041238 (87) International publication number: WO 2004/068275 (12.08.2004 Gazette 2004/33)

(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: 17.01.2003 US 346475 (71) Applicant: DP Technology Corp. Camarillo, CA 93012 (US)	(72) Inventors: MATHEWS, Charles, D., B. Encino, CA 91409 (US) GUSTAFSON, Michael, A. Ventura, CA 93004 (US) (74) Representative: Faulkner, Thomas John et al fJ Cleveland, 40-43 Chancery Lane London WC2A 1JQ London WC2A 1JQ (GB)