(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