(19)
(11) EP 0 913 029 A1

(12)

(43) Date of publication:
06.05.1999 Bulletin 1999/18

(21) Application number: 97932096.0

(22) Date of filing: 27.06.1997
(51) International Patent Classification (IPC): 
H03F 3/ 345( . )
H03H 11/ 04( . )
(86) International application number:
PCT/SE1997/001169
(87) International publication number:
WO 1998/004038 (29.01.1998 Gazette 1998/04)
(84) Designated Contracting States:
DE ES FI FR GB IT NL SE

(30) Priority: 19.07.1996 SE 19960002824

(71) Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (publ)
126 25 Stockholm (SE)

(72) Inventor:
  • TAN, Nianxiong
    S-191 56 Sollentuna (SE)

(74) Representative: Hedberg, Sten Torsten 
Ericsson Components AB, Department for IPR, Kista
164 81 Stockholm
164 81 Stockholm (SE)

   


(54) A METHOD AND DEVICE FOR CONTINUOUS-TIME FILTERING IN DIGITAL CMOS PROCESS