(19)

(11)

EP 1 417 662 A1

(12)

(43) Date of publication: 12.05.2004 Bulletin 2004/20 (21) Application number: 01942242.7 (22) Date of filing: 11.06.2001

(51) International Patent Classification (IPC)7: G08B 21/00 (86) International application number: PCT/US2001/040912 (87) International publication number: WO 2002/101679 (19.12.2002 Gazette 2002/51)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (71) Applicant: Nielsen, Wyn Y. La Jolla, CA 92037 (US)	(72) Inventor: Nielsen, Wyn Y. La Jolla, CA 92037 (US) (74) Representative: Glawe, Delfs, Moll & Partner  PatentanwälteRothenbaumchaussee 58 20148 Hamburg 20148 Hamburg (DE)