(19)
(11) EP 0 940 002 A1

(12)

(43) Date of publication:
08.09.1999 Bulletin 1999/36

(21) Application number: 97913214.0

(22) Date of filing: 24.11.1997
(51) International Patent Classification (IPC): 
H03F 3/ 217( . )
(86) International application number:
PCT/FI1997/000715
(87) International publication number:
WO 1998/024174 (04.06.1998 Gazette 1998/22)
(84) Designated Contracting States:
BE DE FR GB IT SE

(30) Priority: 25.11.1996 FI 19960004689

(71) Applicant: NOKIA TELECOMMUNICATIONS OY
02150 Espoo (FI)

(72) Inventor:
  • KOSKINEN, Martti
    FIN-00710 Helsinki (FI)

(74) Representative: Äkräs, Tapio Juhani, et al 
Oy Kolster Ab, Iso Roobertinkatu 23, P.O. Box 148
00121 Helsinki
00121 Helsinki (FI)

   


(54) DEVICE FOR CHANGING LEVEL OF ANALOG SIGNAL