(19)

(11)

EP 1 254 453 A2

(12)

(88) Date of publication A3: 15.11.2001 (43) Date of publication: 06.11.2002 Bulletin 2002/45 (21) Application number: 00982448.3 (22) Date of filing: 05.12.2000

(51) International Patent Classification (IPC)7: G11B 7/12 (86) International application number: PCT/US0033/014 (87) International publication number: WO 0104/3126 (14.06.2001 Gazette 2001/24)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT Designated Extension States: AL LT LV MK RO SI (30) Priority: 07.12.1999 US 457104 31.03.2000 US 540657 (71) Applicant: Dataplay, INC. Boulder, CO 80301 (US)	(72) Inventors: REDMOND, Ian Boulder, CO 80304 (US) BELL, Bernard Lafayette, CO 80026 (US) BLANKENBECKLER, David, L. Longmont, CO 80501 (US) BRAITBERG, Michael, F. Boulder, CO 80302 (US) FREEMAN, Robert, D. Erie, CO 80516 (US) (74) Representative: Freeman, Jacqueline Carol  W.P. THOMPSON & CO.Celcon House289-293 High Holborn London WC1V 7HU London WC1V 7HU (GB)