(19)

(11)

EP 0 671 075 A1

(12)

(43) Date of publication: 13.09.1995 Bulletin 1995/37 (21) Application number: 94900838.0 (22) Date of filing: 30.11.1993

(51) International Patent Classification (IPC):  H03F 3/ 343( . ) (86) International application number: PCT/FI1993/000506 (87) International publication number: WO 1994/013059 (09.06.1994 Gazette 1994/13)

(84) Designated Contracting States: SE (30) Priority: 30.11.1992 FI 19920005449 (71) Applicant: NOKIA TELECOMMUNICATIONS OY FIN-02600 Espoo (FI)	(72) Inventors: LOUKUSA, Jarmo FIN-90570 Oulu (FI) VARANKA, Kauko FIN-90830 Haukipudas (FI) (74) Representative: Hammar, Ernst, et al  H. Albihns Patentbyra AB, P.O. Box 3137 S-103 62 Stockholm S-103 62 Stockholm (SE)