(19)

(11)

EP 0 765 545 A2

(12)

(43) Date of publication: 02.04.1997 Bulletin 1997/14 (21) Application number: 96903167.0 (22) Date of filing: 08.03.1996

(51) International Patent Classification (IPC):  H04B 1/ 707( . ) H04L 27/ 00( . ) (86) International application number: PCT/IB1996/000183 (87) International publication number: WO 1996/032784 (17.10.1996 Gazette 1996/46)

(84) Designated Contracting States: DE FR GB (30) Priority: 11.04.1995 GB 19950007449 (71) Applicant: PHILIPS ELECTRONICS N.V. 5621 BA Eindhoven (NL)	(72) Inventors: BURBIDGE, Richard, Charles Reigate RH2 0BX (GB) MOULSLEY, Timothy, James Caterham Surrey CR3 5EE (GB) (74) Representative: Moody, Colin James, et al  Philips Electronics UK Limited Patents and Trade Marks Department Cross Oak Lane Redhill, Surrey RH1 5HA Redhill, Surrey RH1 5HA (GB)