(19)

(11)

EP 0 462 166 A1

(12)

(43) Date of publication: 27.12.1991 Bulletin 1991/52 (21) Application number: 90904391.0 (22) Date of filing: 08.03.1990

(51) International Patent Classification (IPC):  H04B 1/ 16( . ) H04H 60/ 54( . ) (86) International application number: PCT/GB1990/000351 (87) International publication number: WO 1990/010981 (20.09.1990 Gazette 1990/22)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI LU NL SE (30) Priority: 08.03.1989 GB 19890005252 (71) Applicant: Philips Electronics N.V. NL-5621 BA Eindhoven (NL)	(72) Inventors: BERGER, Josef A-2500 Baden (AT) BERGMAN, Sten S-114 45 Stockholm (SE) KAMALSKI, Theo NL-6026 BK Maarheeze (NL) PARNALL, Simon, John London SW16 4HA (GB) (74) Representative: Abnett, Richard Charles  REDDIE & GROSE 16 Theobalds Road London WC1X 8PL London WC1X 8PL (GB)