(19)

(11)

EP 0 514 378 A1

(12)

(43) Date of publication: 25.11.1992 Bulletin 1992/48 (21) Application number: 91900117.0 (22) Date of filing: 13.11.1990

(51) International Patent Classification (IPC):  G06K 7/ 08( . ) H01Q 9/ 28( . ) (86) International application number: PCT/US1990/006614 (87) International publication number: WO 1991/007785 (30.05.1991 Gazette 1991/12)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 13.11.1989 US 19890434233 (71) Applicant: X-CYTE, INC. San Jose, CA 95131 (US)	(72) Inventors: NYSEN, Paul, A. Randwick, NSW 2031 (AU) NAGEL, Jon, L. Cupertino, CA 95014 (US) (74) Representative: Hoffmeister, Helmut, Dr. Dipl.-Phys.  Patentanwalt, Postbox 38 28 48021 Münster 48021 Münster (DE)