(19)

(11)

EP 0 752 193 A1

(12)

(43) Date of publication: 08.01.1997 Bulletin 1997/02 (21) Application number: 95911445.0 (22) Date of filing: 20.03.1995

(51) International Patent Classification (IPC):  H04R 1/ 10( . ) H04R 5/ 033( . ) H04B 1/ 08( . ) (86) International application number: PCT/GB1995/000615 (87) International publication number: WO 1995/026117 (28.09.1995 Gazette 1995/41)

(84) Designated Contracting States: DE FR GB (30) Priority: 19.03.1994 GB 19940005448 27.08.1994 GB 19940017312 21.10.1994 GB 19940021230 26.11.1994 GB 19940023909 (71) Applicant: Philips Industrial Electronics Services B.V. 5600 JZ Eindhoven (NL)	(72) Inventor: Philips Industrial Electronics Services B.V. 5600 JZ Eindhoven (NL) (74) Representative: Schoonheijm, Harry Barend, et al  INTERNATIONAAL OCTROOIBUREAU B.V., Prof.Holstlaan 6 5656 AA Eindhoven 5656 AA Eindhoven (NL)