(19)

(11)

EP 1 457 033 A1

(12)

(43) Date of publication: 15.09.2004 Bulletin 2004/38 (21) Application number: 02795689.5 (22) Date of filing: 27.11.2002

(51) International Patent Classification (IPC)7: H04M 11/06, G05B 19/05, G06F 1/025 (86) International application number: PCT/US2002/038043 (87) International publication number: WO 2003/053035 (26.06.2003 Gazette 2003/26)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR (30) Priority: 18.12.2001 US 341386 P 16.10.2002 US 271921 (71) Applicant: Siemens Energy & Automation, Inc. Alpharetta, GA 30005-4437 (US)	(72) Inventor: HAUSMAN, Steven, Michael Johnson City, TN 37604 (US) (74) Representative: Payne, Janice Julia et al Siemens AG,Postfach 22 16 34 80506 München 80506 München (DE)