(19)

(11)

EP 0 553 073 A1

(12)

(43) Date of publication: 04.08.1993 Bulletin 1993/31 (21) Application number: 90916135.0 (22) Date of filing: 24.09.1990

(51) International Patent Classification (IPC):  H04B 10/ 10( . ) (86) International application number: PCT/US1990/005414 (87) International publication number: WO 1992/005641 (02.04.1992 Gazette 1992/08)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI LU NL SE (71) Applicant: UNIVERSAL ELECTRONICS, INC. Twinsburg, Ohio 44087 (US)	(72) Inventor: DARBEE, Paul, V. Santa Ana, CA 92705 (US) (74) Representative: Kohler - Schmid + Partner  Patentanwälte Ruppmannstrasse 27 D-70565 Stuttgart D-70565 Stuttgart (DE)