(19)

(11)

EP 1 080 605 A1

(12)

(43) Date of publication: 07.03.2001 Bulletin 2001/10 (21) Application number: 99922269.8 (22) Date of filing: 20.05.1999

(51) International Patent Classification (IPC)7: H04R 7/06, H04R 1/32 (86) International application number: PCT/GB9901/406 (87) International publication number: WO 9962/294 (02.12.1999 Gazette 1999/48)

(84) Designated Contracting States: AT BE DE DK ES FI FR GB IE IT NL PT SE (30) Priority: 23.05.1998 GB 9811098 (71) Applicant: New Transducers Limited London SW3 3QH (GB)	(72) Inventors: AZIMA, Henry Cambridge CB2 2TT (GB) HARRIS, Neil Whittlesford,Cambridge CB2 4NL (GB) (74) Representative: Maguire, Peter Albert  Maguire & Co.5 Crown Street St. Ives, Cambridgeshire PE27 5EB St. Ives, Cambridgeshire PE27 5EB (GB)